WO2013018175A1 - 発光装置及び照明装置 - Google Patents
発光装置及び照明装置 Download PDFInfo
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- WO2013018175A1 WO2013018175A1 PCT/JP2011/067527 JP2011067527W WO2013018175A1 WO 2013018175 A1 WO2013018175 A1 WO 2013018175A1 JP 2011067527 W JP2011067527 W JP 2011067527W WO 2013018175 A1 WO2013018175 A1 WO 2013018175A1
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- light emitting
- light
- substrate
- sealing member
- wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
- H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
- H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/852—Encapsulations
- H10H20/853—Encapsulations characterised by their shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
- F21S8/031—Lighting devices intended for fixed installation of surface-mounted type the device consisting essentially only of a light source holder with an exposed light source, e.g. a fluorescent tube
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
- H05K2201/2054—Light-reflecting surface, e.g. conductors, substrates, coatings, dielectrics
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1316—Moulded encapsulation of mounted components
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
- H10H20/8514—Wavelength conversion means characterised by their shape, e.g. plate or foil
Definitions
- Embodiments of the present invention relate to a light-emitting device having a semiconductor light-emitting element such as an LED (light-emitting diode) and a lighting device such as a lighting fixture provided with the light-emitting device as a light source.
- a semiconductor light-emitting element such as an LED (light-emitting diode)
- a lighting device such as a lighting fixture provided with the light-emitting device as a light source.
- LED light source for an illumination device having a plurality of LEDs
- An LED array that can be used as a light source of this type of illumination device is known.
- This LED array is provided with a plurality of first conductive patterns, second conductive patterns, LED chips, bonding wires, and transparent resins on a printed board.
- the surface of the printed circuit board is covered with white resist.
- the first and second conductive patterns are arranged along the longitudinal direction of the printed circuit board.
- the second conductive patterns are individually adjacent to the plurality of first conductive patterns.
- the first conductive pattern is larger than the LED chip.
- Each LED chip is die-bonded to the first conductive pattern.
- the bonding wire connects the LED chip and the second conductive pattern adjacent to the first conductive pattern to which it is die-bonded.
- the transparent resin is formed on the substrate by potting. This transparent resin fills one LED chip and bonding wires connected thereto, and seals them.
- the uncured transparent resin dropped on the substrate forms a dome-shaped convex immediately after dropping, but its skirt spreads relatively easily and becomes low before it is cured. Thereby, it is difficult to make the transparent resin into a predetermined shape.
- a phosphor is mixed with a transparent resin.
- a transparent resin For example, when the LED chip emits blue light and white illumination light is obtained, a phosphor that is excited by the blue light and emits yellow light is mixed with the transparent resin.
- the transparent resin mixed with the phosphor does not have a predetermined shape in this way, the distance from the LED chip sealed with this resin to each part of the surface of the transparent resin is not likely to exceed a certain level. If the distance is too short, the LED chip tends to have a superior light emission color. On the other hand, if the distance is too long, the fluorescence emitted by the phosphor is superior in color.
- a color difference (this is called an angular color difference) may occur depending on the angle at which the LED light source is viewed.
- a bank surrounding the transparent resin may be formed on the printed circuit board, and the uncured transparent resin spreads out in this bank.
- the uncured transparent resin spreads out in this bank.
- Embodiment is providing the light-emitting device and illuminating device which can improve an angular color difference and can radiate
- the light emitting device includes a light emitting module including a substrate, a plurality of semiconductor light emitting elements, and a plurality of sealing members. Each light emitting element is disposed on a substrate.
- Each sealing member is mainly composed of a translucent resin mixed with a phosphor. These sealing members are formed by rising from the bottom surface bonded to the substrate and individually filling one or more of the light emitting elements.
- the ratio (H / D) of the diameter D of the bottom surface to the swelled height H of the sealing member is set to 0.22 to 1.0.
- FIG. 1 is a perspective view illustrating the lighting apparatus according to the first embodiment.
- FIG. 2 is a cross-sectional view showing the lighting apparatus of FIG.
- FIG. 3 is a front view showing a state in which a plurality of light emitting modules included in the lamp of the lighting fixture of FIG. 1 are arranged.
- FIG. 4 is a front view showing one of the light emitting modules of FIG.
- FIG. 5 is an enlarged front view showing a portion F5 in FIG. 6 is an enlarged front view showing the F6 portion in FIG. 7 is a cross-sectional view taken along line F7-F7 in FIG.
- FIG. 8 is a cross-sectional view taken along line F8-F8 in FIG.
- FIG. 9 is a front view showing the light emitting module of FIG.
- FIG. 10 is an enlarged view of a portion F10 in FIG.
- FIG. 11 is an enlarged view showing a part of F11 in FIG.
- FIG. 12 is a schematic diagram illustrating a configuration of a sealing member included in the light emitting module of FIG. 4.
- the light-emitting device of Embodiment 1 includes a light-emitting module.
- the light emitting module includes: a substrate; a plurality of semiconductor light emitting elements disposed on the substrate; and a bottom surface bonded to the substrate, the main component being a translucent resin mixed with a phosphor.
- a plurality of sealing members formed by individually filling one or more of the light emitting elements and having a ratio (H / D) of the diameter D of the bottom surface to the height H of the protrusions from 0.22 to 1.0.
- the light-emitting device of Embodiment 1 can be used as a light source mounted on, for example, a lighting fixture or a display device.
- a single-layer or multi-layer resin substrate can be used as the substrate. Furthermore, in order to suppress the warpage of the substrate and improve the heat dissipation from the substrate, it is preferable to use a substrate having a configuration in which a metal foil such as aluminum, iron, or copper is laminated on the back surface.
- the semiconductor light emitting element typically includes an LED (light emitting diode) chip, but a semiconductor laser or the like can also be used.
- the emission color may be any of red, green, and blue. It is also possible to use a combination of LED chips of different emission colors.
- a light-transmitting thermoplastic synthetic resin such as various epoxy resins or various silicone resins can be used as the resin constituting the main component of the sealing member in which the light emitting element or the like is embedded.
- the number of light emitting elements that each sealing member fills is not limited to one, and may be plural.
- Embodiment 1 since the aspect ratio (H / D) of each sealing member sealing the light emitting element is defined as described above, the distance from the light emitting element to each position on the surface of the sealing member is 1 mm or more. it can. Therefore, the angular color difference can be suppressed without requiring a bank that does not spread before the sealing member is cured.
- the sealing member is a resin-based silicone resin, and the hardness after the formation is 54 or more and 94 or less in Shore hardness.
- the Shore hardness of the resin-based silicone resin that forms the sealing member in the first embodiment is in the range of (74 ⁇ 20)
- the thixotropy until the sealing member is cured is further improved. Be improved. Thereby, it is suppressed that the height of the sealing member spreads until the sealing member is cured, and the distance from the light emitting element to each position on the surface of the sealing member can be secured 1 mm or more.
- the Shore hardness of the sealing member is less than 54, the thixotropy is lowered, and it is difficult to secure a distance from the light emitting element to each position on the surface of the sealing member of 1 mm or more.
- the wiring pattern is formed on the substrate in Embodiment 1, and the light emitting element is mounted on a mounting pad formed of a part of the wiring pattern, and the mounting is performed on the substrate.
- a wire connecting portion adjacent to the pad is formed, and a wire connecting the mounting pad and the wire connecting portion is provided, and one end portion of the wire connected to the light emitting element is arranged in the thickness direction of the light emitting element.
- the other end of the wire connected to the wire connecting portion is slanted, and an intermediate portion of the wire between the one end and the other end is bent from the one end.
- the projecting height of the intermediate portion with respect to the light emitting element is not less than 75 ⁇ m and not more than 125 ⁇ m.
- the wire is provided by wire bonding, and a metal fine wire, for example, a gold fine wire can be suitably used.
- a metal fine wire for example, a gold fine wire
- the fact that the intermediate portion of the wire is bent from one end of the wire so as to be parallel to the light emitting element includes that the intermediate portion is parallel to the light emitting element.
- the intermediate portion may not be completely parallel to the light emitting element due to manufacturing variations. Such variations are also included in the scope of the phrase “to be parallel”.
- the sealing member expands and contracts as the light emitting device emits light and stops. Due to this expansion and contraction, stress is applied to the wire buried in the sealing member.
- the intermediate portion of the wire is formed so as to be bent from one end portion of the wire connected to the light emitting element and to be parallel to the light emitting element.
- the protruding height of the intermediate portion of the wire with respect to the light emitting element is defined as 75 ⁇ m or more and 125 ⁇ m or less.
- the light-emitting device of Embodiment 4 is the same as Embodiment 3, except that a resin protective member that covers the wiring pattern is formed on the substrate, and the mounting pad is covered with the sealing member.
- a groove is formed in at least one portion of the peripheral portion of the protective member, and a filling portion of the protective member filled in the groove is bonded to the sealing member.
- the adhesion between the resin sealing member and the metal mounting pad covered therewith is inferior to the adhesion between the resins.
- the sealing member may be peeled off.
- the filling portion of the protective member made of resin filled in the groove in the peripheral portion of the mounting pad and the mounting pad are bonded. For this reason, the holding
- the light-emitting device of Embodiment 5 is further provided with the diffuse translucent pipe which accommodated the said light emitting module in Embodiment 1.
- FIG. 1 when the pipe is made of resin, examples of the resin include polycarbonate resin.
- the light emitted from the light emitting module can be further diffused by a pipe and emitted as illumination light outside the pipe in the first embodiment.
- the light-emitting device of Embodiment 5 can be implemented as a straight tube lamp that is a light source when the pipe is straight.
- the pipe is annular, it can be implemented as an annular lamp as a light source.
- the light transmittance of the pipe is 85% or less, and the arrangement pitch of the light emitting elements is 5 mm or more and 9 mm or less.
- the translucency of the pipe is 85% or less, a plurality of light emitting elements become luminescent spots and can hardly be reflected in the pipe.
- the arrangement pitch of the light-emitting elements is less than 5 mm, the light-emitting elements are arranged at a high density, which is a main factor for increasing the cost.
- the arrangement pitch of the light emitting elements exceeds 9 mm, the light emitting elements are arranged at a low density, and the tendency of the reflection is increased.
- the sixth embodiment in addition to the fifth embodiment, it is possible to suppress a plurality of light emitting elements from being reflected on the pipe as luminescent spots at a low cost, and it is possible to shine the pipe to a substantially uniform brightness. is there.
- the lighting device of Embodiment 7 includes an instrument main body; at least a pair of sockets attached to the instrument main body: a straight diffused light-transmitting pipe, and is formed in a length in a direction in which the pipe extends to be accommodated in the pipe A light-emitting module, and a straight-tube light-emitting device that includes a base attached to both ends in the longitudinal direction of the pipe and is detachably supported by the socket.
- the configuration is provided.
- the light-emitting module includes a substrate; a plurality of semiconductor light-emitting elements disposed on the substrate; and a translucent resin mixed with a phosphor. And a plurality of sealing members formed by individually embedding one or more of the light emitting elements and having a ratio (H / D) of the diameter D of the bottom surface to the height H of the bulge being 0.22 to 1.0. .
- Embodiment 7 is an illumination device including a light emitting device as a straight tube lamp that is a light source, and the light emitting device includes the light emitting module described in Embodiment 1. For this reason, the distance from the light emitting element to each position on the surface of the sealing member is ensured to be 1 mm or more, thereby providing an illuminating device capable of improving the angular color difference and emitting uniform illumination light. The effect can be expected.
- Example 1 the light-emitting device of Example 1 and a lighting device such as a lighting fixture provided with the light-emitting device as a light source will be described in detail with reference to FIGS.
- reference numeral 1 exemplifies a direct-mounted one-lamp lighting fixture.
- the lighting fixture 1 includes a fixture main body (device main body) 2, a lighting device 3, a pair of sockets 4, a reflecting member 5, and a straight tube lamp 11 that serves as a light source as a light emitting device, for example. Yes.
- the instrument body 2 is made of, for example, an elongated metal plate.
- the instrument body 2 extends in the front and back direction of the paper surface depicting FIG.
- the appliance body 2 is fixed to, for example, an indoor ceiling using a plurality of screws (not shown).
- the lighting device 3 is fixed to the middle part of the instrument body 2 in the longitudinal direction.
- the lighting device 3 is configured to receive a commercial AC power supply and generate a DC output, and supplies the DC output to a lamp 11 described later.
- a power terminal block (not shown), a plurality of member support brackets, a pair of socket support members, and the like are attached to the instrument body 2.
- the power supply terminal block is connected with a power line of commercial AC power drawn from behind the ceiling. Furthermore, the power terminal block is electrically connected to the lighting device 3 and a socket 4 described later via an in-appliance wiring.
- the socket 4 is connected to the socket support member and disposed at both ends of the instrument body 2 in the longitudinal direction.
- Both sockets 4 are existing sockets suitable for, for example, a G13 type cap 13 provided in the lamp 11 described later. However, it is not limited to this, and a socket of a type suitable for the type of the base can be used.
- These sockets 4 include a pair of power supply terminals (not shown) to which terminal pins 13a and 13b described later are connected.
- the in-tool wiring is connected only to the power supply terminal of the socket 4 on one side. No power supply wiring is connected to the other socket 4.
- the reflection member 5 has, for example, a metal bottom plate portion 5a, a side plate portion 5b, and a pair of end plates 5c (only one is shown in FIG. 1), and has a trough shape with an open upper surface. Yes.
- the bottom plate portion 5a is flat.
- the side plate portion 5b is bent obliquely upward from both ends in the width direction of the bottom plate portion 5a.
- the pair of end plates 5c closes the end surface openings formed by the longitudinal ends of the bottom plate portion 5a and the side plate portions 5b, respectively.
- the metal plate that forms the bottom plate portion 5a and the side plate portion 5b is made of a color steel plate whose surface exhibits a white color. For this reason, the surface of the baseplate part 5a and the side plate part 5b is a reflective surface.
- socket through holes are opened at both longitudinal ends of the bottom plate portion 5a.
- the reflection member 5 covers the instrument body 2 and each component attached thereto. This state is held by a removable decorative screw 6 (see FIG. 1).
- the decorative screw 6 can be operated by hand without using a tool, and penetrates the bottom plate portion 5a upward and is screwed into the member support fitting.
- the socket 4 protrudes below the bottom plate portion 5a through the socket through hole.
- the lighting fixture 1 is not limited to one lamp, and can be implemented as a two-lamp lighting fixture that includes two pairs of sockets 4 and can support two lamps 11 described below.
- the lamp 11 detachably supported by the socket 4 will be described below with reference to FIGS.
- the lamp 11 has the same dimensions and outer diameter as the existing fluorescent lamp.
- the lamp 11 includes a pipe 12, a base 13 attached to the end of the pipe 12, a beam 14, and at least one, for example, four light emitting modules 15. In the case of distinguishing the four light emitting modules 15, the subscripts a to d are attached and illustrated and described.
- the pipe 12 is made of a light-transmitting resin material, for example, straight.
- a resin material forming the pipe 12 a polycarbonate resin mixed with a diffusing material can be suitably used.
- the diffuse transmittance of the pipe 12 is 90% to 95%.
- the pipe 12 has a pair of convex parts 12a on the inner surface of the upper part in its use state.
- the type of the base 13 is G13, and the base 13 is attached to both ends of the pipe 12 in the longitudinal direction. These caps 13 are detachably connected to the socket 4.
- the lamp 11 supported by the socket 4 by this connection is disposed immediately below the bottom plate portion 5 a of the reflecting member 5. A part of the light emitted from the lamp 11 to the outside enters the side plate portion 5 b of the reflecting member 5.
- Each base 13 has terminal pins 13a and 13b as shown in FIG. These terminal pins 13 a and 13 b protrude outside the base 13.
- the terminal pins 13a and 13b are electrically insulated from each other.
- the lamp 11 is supported by the socket 4 by connecting the terminal pins 13 a and 13 b of each base 13 to each socket 4. In this supported state, power can be supplied to the lamp 11 by the power supply terminal in the socket 4 on one side and the terminal pins 13a and 13b in contact with the power supply terminal.
- the beam 14 is accommodated in the pipe 12.
- the beam 14 is a bar material having excellent mechanical strength, and is formed of, for example, an aluminum alloy for weight reduction. Both ends in the longitudinal direction of the beam 14 are electrically insulated and connected to the base 13.
- the beam 14 has, for example, a plurality of substrate support portions 14a each having a rib shape (only one is shown in FIG. 2).
- the four light emitting modules 15a to 15d are all formed in a long and narrow rectangle, and are arranged in a straight line.
- the length of this row is approximately equal to the total length of the beam 14.
- the light emitting modules 15a to 15d are fixed by screws (not shown) that are screwed into the beam 14 through the light emitting modules 15a to 15d.
- the light emitting modules 15a to 15d are accommodated in the pipe 12 together with the beam 14. In this supported state, both ends in the width direction of the light emitting modules 15a to 15d are placed on the convex portions 12a of the pipe 12. Accordingly, the light emitting modules 15a to 15d are disposed substantially horizontally above the maximum width portion in the pipe 12.
- each light emitting module 15 includes a substrate 21, a wiring pattern 25, a protection member 41, a plurality of light emitting elements 45, a first wire 51, a second wire 52, A sealing member 54 and various electrical components 55 to 59 are provided.
- the substrate 21 has a base 22, a metal foil 23, and a cover layer 24.
- the base 22 is made of resin, for example, glass epoxy resin.
- This glass epoxy resin substrate (FR-4) has a low thermal conductivity and is relatively inexpensive.
- the base 22 may be formed of a glass composite substrate (CEM-3) or other synthetic resin material.
- the metal foil 23 is laminated on the back surface of the substrate 21 and is made of, for example, copper foil.
- the cover layer 24 is laminated over the metal foil 23 and the back surface of the peripheral portion of the base 22.
- the cover layer 24 is made of a resist layer made of an insulating material such as synthetic resin.
- the substrate 21 is reinforced by the metal foil 23 and the cover layer 24 laminated on the back surface thereof so as not to warp.
- the wiring pattern 25 has a three-layer structure as shown in FIGS. 7 and 8 and is formed on the surface of the base 22 (that is, the surface of the substrate 21).
- the first layer U is formed of copper plated on the surface of the base 22.
- the second layer M is plated on the first layer U and is formed of nickel.
- the third layer T is plated on the second layer M and is made of silver.
- the surface of the wiring pattern 25 is made of silver.
- the silver third layer T forms a reflecting surface, and the total light reflectance thereof is 90% or more.
- a white resist layer mainly composed of an electrically insulating synthetic resin can be suitably used.
- This white resist layer functions as a reflective layer having a high light reflectance.
- the protection member 41 is formed on the substrate 21 so as to cover most of the wiring pattern 25. That is, the protection member 41 covers the wiring pattern 25 while leaving a plurality of places of the wiring pattern 25 as the mounting pads 26. At the same time, the protection member 41 covers the wiring pattern 25 while leaving a plurality of portions of the wiring pattern 25 as wire connection portions 27. Furthermore, the protection member 41 covers the wiring pattern 25 except for mounting locations for electrical components 55 to 59 described later.
- Each mounting pad 26 and each wire connecting portion 27 are formed in a portion where the third layer T is exposed without being covered with the protective member 41 when the protective member 41 is formed on the substrate 21. As shown in FIG. 9, the mounting pads 26 are arranged in the longitudinal direction of the substrate 21. Each wire connecting portion 27 is arranged in the vicinity of each mounting pad 26 in a pair with each mounting pad 26. Therefore, the wire connection portions 27 are arranged in the longitudinal direction of the substrate 21 at the same arrangement pitch as the arrangement pitch of the mounting pads 26.
- the mounting pad 26 has grooves 26a to 26d in at least one place, for example, four places in the periphery.
- the grooves 26a to 26b are separated from each other by 90 degrees.
- the depths of the grooves 26a to 26b are 1/10 to 1/5 of the pad diameter D1, which will be described later.
- the peripheral edge of the mounting pad 26 has an edge portion 26e having an arc shape every 90 degrees. Each edge portion 26e is formed between the grooves 26a to 26d adjacent to each other in the circumferential direction of the mounting pad 26.
- the mounting pad 26 Since the mounting pad 26 has the grooves 26a to 26b and the edge 26e, the mounting pad 26 has a substantially clover shape.
- the groove 26a is larger than the other three grooves 26b to 26d, and the wire connecting portion 27 is disposed inside thereof.
- the mounting pad 26 is formed symmetrically with respect to a straight line L (shown by a one-dot chain line in FIG. 10) passing through the center and the wire connecting portion 27.
- the mounting pad 26 having a substantially clover shape and the wire connection portion 27 provided in the groove 26a can contribute to reducing the diameter D of the sealing member 54 described later.
- the pad diameter D1 of the mounting pad 26 is, for example, 3.6 mm.
- the pad diameter D1 is a dimension between the edge portions 26e positioned in pairs with the center of the mounting pad 26 as a boundary.
- the protective member 41 is filled in each of the grooves 26a to 26b.
- the portion of the protection member 41 filled in the grooves 26a to 26b is referred to as a filling portion 42 (see FIGS. 7 and 11).
- Each filling portion 42 forms a convex portion that protrudes toward the center of the mounting pad 26.
- These filling portions 42 protrude from the surface of the third layer T in the stacking direction of the wiring pattern 25 (see FIG. 7).
- At least one of the filling portions 42 is used as a reference for determining the mounting position when a light emitting element 45 described later is mounted on the mounting pad 26.
- the filling portion 42 with respect to the groove 26 a is filled in the groove 26 a avoiding the wire connection portion 27.
- the protective member 41 is filled in each of the grooves 26a to 26b.
- the portion of the protection member 41 filled in the grooves 26a to 26b is referred to as a filling portion 42 (see FIGS. 7 and 11).
- the filling portion 42 protrudes from the surface of the third layer T in the stacking direction of the wiring pattern 25 (see FIG. 7).
- the filling portion 42 with respect to the groove 26 a is filled in the groove 26 a avoiding the wire connection portion 27.
- the plurality of light emitting elements 45 are LED bare chips.
- an LED bare chip that emits blue light is used as the bare chip.
- An LED bare chip has a light emitting layer on one surface of an element substrate made of sapphire and has a rectangular planar shape.
- an element electrode 45 b that forms an anode and an element electrode 45 a that forms a cathode are arranged in the light emitting layer, for example, in the longitudinal direction of the bare chip of the LED.
- These light emitting elements 45 have the other surface of the element substrate opposite to the one surface fixed to a mounting pad 26 which is a reflective surface using an adhesive 46 (see FIGS. 7 and 8).
- each light emitting element 45 is bonded onto the mounting pad 26 such that the arrangement of the element electrodes 45a and 45b is aligned with the grooves 26a and 26c of the mounting pad 26.
- the light emitting elements 45 thus mounted on the mounting pads 26 form a light emitting element array arranged in the longitudinal direction of the substrate 21 (the direction in which the central axis extends). In this row, the arrangement pitch of the light emitting elements 45 is not less than 5 mm and not more than 9 mm.
- the bonding portion of the light emitting element 45 is the central portion of the mounting pad 26. As a result, the light emitted from the light emitting element 45 and incident on the mounting pad 26 can be reflected in the reflective surface area around the light emitting element 45.
- the light incident on the mounting pad 26 becomes stronger as it approaches the light emitting element 45, and this strong light can be reflected by the reflection surface region.
- the grooves 26a to 26d are out of the reflective surface area that reflects the strong light. For this reason, the area of the surface (reflection surface) of the mounting pad 26 is reduced by the grooves 26a to 26d in the peripheral portion of the mounting pad 26. However, this substantially reduces the reflection performance of the mounting pad 26. It can be ignored.
- the light emitting element 45 Since light emission of the light emitting element 45 composed of a bare LED chip is realized by passing a forward current through a pn junction of a semiconductor, the light emitting element 45 is a solid element that directly converts electric energy into light.
- the light emitting element 45 that emits light by such a light emission principle has an energy saving effect as compared with an incandescent bulb that incandescents a filament to a high temperature by energization and emits visible light by its thermal radiation.
- the adhesive 46 preferably has heat resistance in order to obtain adhesion durability, and further has translucency so that reflection can be performed directly under the light emitting element 45.
- a silicone resin adhesive can be suitably used as such an adhesive 46.
- the first wire 51 and the second wire 52 are made of fine metal wires, for example, gold fine wires, and are wired using a bonding machine.
- the first wire 51 is provided by electrically connecting the light emitting element 45 and the wiring pattern 25.
- one end 51 a of the first wire 51 is connected to the element electrode 45 a of the light emitting element 45 by first bonding.
- the other end portion 51 b of the first wire 51 is connected to the wire connection portion 27 of the wiring pattern 25 by the second bonding.
- One end portion 51 a of the first wire 51 protrudes in a direction away from the light emitting element 45 in the thickness direction of the light emitting element 45.
- the wire connection portion 27 is closer to the substrate 21 than the element electrodes 45a and 45b of the light emitting element 45 with reference to the thickness direction of the light emitting element 45.
- the other end portion 51 b of the first wire 51 is connected to the wire connection portion 27 at an angle.
- the intermediate part 51c of the first wire 51 is a part occupying between the one end part 51a and the other end part 51b. As shown in FIG. 7, the intermediate portion 51 c is formed so as to bend from the one end portion 51 a and be parallel to the light emitting element 45.
- the protrusion height h of the intermediate portion 51c with respect to the light emitting element 45 is defined as 75 ⁇ m or more and 125 ⁇ m or less, preferably 60 ⁇ m or more and 100 ⁇ m or less.
- the intermediate portion 51c and the other end portion 51b of the first wire 51 thus wired extend in a direction orthogonal to the direction in which the light emitting elements 45 form a row.
- Such wiring is realized by the above-described arrangement of the light emitting element 45 with respect to the mounting pad 26. With this wiring, the length of the first wire 51 can be shortened. For this reason, the cost of the 1st wire 51 can be reduced compared with the case where the 1st wire 51 is wired diagonally with respect to a light emitting element in planar view.
- the second wire 52 is provided by connecting the light emitting element 45 and the mounting pad 26 by wire bonding.
- one end of the second wire 52 is connected to the element electrode 45b of the light emitting element 45 by first bonding.
- the other end of the second wire 51 is connected to the mounting pad 26 by the second bonding.
- the sealing member 54 is formed by mixing an appropriate amount of a phosphor 54b and a filler 54c with a resin 54a as a main component, as schematically shown in FIG.
- the resin 54a a resin silicone resin or a hybrid silicone resin having translucency is used. Since the resin-based silicone resin and the hybrid-based silicone resin have a three-dimensionally crosslinked structure, the phosphor 54b that is harder than the translucent silicone rubber is excited by the light emitted from the light emitting element 45 to emit light. Light of a color different from the color of light emitted by the element 45 is emitted. In Example 1, since the light emitting element 45 emits blue light, a yellow phosphor that emits yellow light having a complementary color relationship to the blue light by the excitation is used. Thereby, white light can be emitted as output light of the lamp 11 which is a light emitting device.
- the sealing member 54 is formed on the substrate 21 by sealing the mounting pad 26, the wire connecting portion 27, the light emitting element 45, the first wire 51, and the second wire 52. Yes.
- the sealing member 54 is formed by being dripped over the light emitting element 45 in an uncured state, and then cured by heat treatment.
- a dispenser or the like is used for dropping (potting) the sealing member 54.
- the cured sealing members 54 are arranged on the substrate 21 at predetermined intervals in the longitudinal direction of the substrate 21, and are arranged in a sealing member row according to the row of the light emitting elements 45.
- the cured sealing member 54 is bonded onto the substrate 21. That is, in the present embodiment, the bottom surface of the sealing member 54 is bonded to the mounting pad 26 of the wiring pattern 25 formed on the substrate 21 and the protective member 41 around the mounting pad 26.
- Each sealing member 54 rises from the bottom surface and is formed by individually embedding the light emitting elements 45, and has a dome shape or a Mt. Fuji shape.
- the diameter D (see FIG. 7) of the sealing member 54 is defined as 1.0 to 1.4 times the pad diameter D1, and in the case of Example 1, the diameter D is 4.0 mm to 5.0 mm. Thereby, a part of the mounting pad 26 does not protrude from the sealing member 54. At the same time, the number of sealing members 54 is not excessive with respect to the mounting pad 26, and the amount of the sealing member 54 used can be made appropriate while maintaining the aspect ratio described later. Note that there is no frame or the like surrounding the light emitting element 45 or the like in order to define the height H of the sealing member 54 from the bottom surface and the diameter D of the bottom surface. Therefore, the diameter D and height H of the sealing member 54 are controlled by the amount of dripping of the sealing member 54, the hardness, and the time until it is cured.
- the raised height H of the sealing member 54 with respect to the light emitting element 45 is 1.0 mm or more.
- the aspect ratio of the sealing member 54 is set to 0.22 to 1.00.
- the aspect ratio of the sealing member 54 is the ratio (H / D) of the diameter D of the bottom surface of the sealing member 54 to the height H of the rising of the sealing member 54 in which the light emitting element 45 is embedded.
- the ratio of the orthogonal diameters of the sealing member 54 is 0.55 to 1.00.
- the ratio of the orthogonal diameters refers to the ratio of the diameters X and Y orthogonal to each other on the bottom surface of the sealing member 54 bonded to the substrate 21 as shown in FIG.
- the diameter X is a diameter of the bottom surface arbitrarily drawn through the center of the light emitting element 45.
- the diameter Y is the diameter of the bottom surface drawn perpendicular to the diameter X.
- the electrical component 55 shown in any of FIGS. 4 to 6 is a capacitor.
- the electrical component 56 is a connector.
- the electrical component 57 is a rectifying diode.
- the electrical component 58 is a resistor.
- the electrical component 59 is an input connector.
- the electrical component 55 made of a capacitor is mounted on each of the four light emitting modules 15. This capacitor suppresses noise from being superimposed on the wiring pattern 25 of each light emitting module 15, thereby preventing the light emitting element 45 from erroneously emitting light.
- the electrical component 56 comprising a connector is mounted only on one end of the light emitting modules 15a and 15d disposed at both ends in the longitudinal direction of the module row formed by the four light emitting modules 15.
- the electrical components 56 are mounted on both ends in the longitudinal direction of the light emitting modules 15b and 15c disposed between the light emitting modules 15a and 15d, respectively.
- the electrical components 56 of the adjacent light emitting modules 15 are connected to each other by an unillustrated electric wire. Thereby, each light emitting module 15 is electrically connected in series.
- the electrical components 57 to 59 are all mounted on the other end of the light emitting module 15a.
- An electrical component 59 composed of an input connector is connected to the wiring pattern 25 of the light emitting module 15. Electric wires (not shown) connected to the electrical component 59 are respectively connected to the terminal pins 13 a and 13 b of the base 13 disposed closer to the electrical component 59.
- each light emitting element 45 emits light. Accordingly, the white light emitted from the sealing member 54 is diffused by the pipe 12 and transmitted through the pipe 12 to be emitted to the outside. Thereby, the space below the lamp 11 is illuminated. At the same time, part of the white light emitted from the pipe 12 is reflected by the side plate portion 5 b of the reflecting member 5 to illuminate the space above the lamp 11.
- the mounting pad 26 of the light emitting module 15 provided in the lamp 11 serving as a light source for such illumination is formed by a part of the wiring pattern 25 made of silver. Thereby, each mounting pad 26 on which each of the light emitting elements 45 is mounted functions as a light reflecting surface.
- the sealing member 54 in which the mounting pad 26, the light emitting element 45, the wire connecting portion 27, the first wire 51, and the like are filled and sealed is formed of a resin-based silicone resin.
- the resin-based silicone resin has a three-dimensional cross-linking structure. For this reason, compared with silicone oil and silicone rubber, the performance of gas such as oxygen and water vapor is low.
- the oxygen permeability of the sealing member 54 is 1200 cm 3 (m 2 ⁇ day ⁇ atm) or less, and the water vapor permeability is 35 g / m 2 or less.
- the water vapor permeability is preferably 20 g / m 2 or less.
- the mounting pad 26 whose surface is a silver reflective layer is sealed with a resin-based silicone resin having low gas permeability.
- the deterioration of the reflection performance is suppressed by the discoloration of the mounting pad 26 caused by the gas in the atmosphere passing through the sealing member 54. Therefore, the luminous flux maintenance factor can be improved.
- the luminous flux maintenance factor of the straight tube type LED lamp provided in the past is about 70% in 40,000 hours.
- the lamp 11 of Example 1 can improve the luminous flux maintenance factor to 94% in 40,000 hours.
- the sealing member 54 expands and contracts. Accordingly, stress is applied to the first wire 51 embedded in the sealing member 54.
- resin-based silicone resins have higher hardness than silicone rubber. When the hardness of the sealing member 54 is high, the stress applied to the first wire 51 increases as the protrusion height h of the first wire 51 with respect to the light emitting element 45 increases.
- the first wire 51 is wired in a low wiring loop. That is, the intermediate portion 51 c of the first wire 51 is formed so as to be bent from one end portion 51 a of the first wire 51 connected to the light emitting element 45 and to be parallel to the light emitting element 45. At the same time, the protrusion height h of the intermediate portion 51c with respect to the light emitting element 45 is not less than 75 ⁇ m and not more than 125 ⁇ m. As described above, the first wire 51 extending between the light emitting element 45 and the wire connecting portion 27 is wired with a low height.
- the phosphor 54b is mixed in the sealing member 54 provided in the lamp 11 of the first embodiment.
- the aspect ratio (H / D) representing the relationship between the rising height H of the sealing member 54 with respect to the light emitting element 45 and the diameter D of the bottom surface of the sealing member 54 is defined as 0.22 to 1.00. ing. By defining the aspect ratio, it is possible to secure a distance of 1 mm or more from the light emitting element 45 to each position on the surface of the sealing member 54.
- the color difference in the angle is suppressed, and the color unevenness of the pipe 12 illuminated by the light emitted from the sealing member 54 and the side plate portion 5b of the reflecting member 5 illuminated by the light transmitted through the pipe 12 is uneven. It can be suppressed. In other words, it is possible to suppress the conspicuous mixture of the region where the emission color of the light emitting element 45 is strong and the blue color is prevailed and the region where the emitted light from the phosphor 54b is strong and the yellow color is prevailed. .
- Example 1 the hardness after formation of the sealing member 54 is specified as 54 to 94 in Shore hardness. Thereby, it is possible to suppress the angular color difference.
- the sealing member 54 contains the filler 54c, the hardness of the sealing member 54 increases, and the thixotropy of the sealing member 54 provided by potting in an uncured state is improved. For this reason, it is suppressed that the potting sealing member spreads until it is heated and cured thereafter, and the height H is lowered.
- the predetermined aspect ratio (H / D) described above is secured, and the distance from the light emitting element 45 to each position on the surface of the sealing member 54 can be secured 1 mm or more.
- grooves 26a to 26d are formed in the peripheral portion of the mounting pad 26 provided in the lamp 11 of the first embodiment, and the filling portion 42 of the protective member 41 filled in these grooves 26a to 26d is sealed.
- the sealing member 54 is covered and bonded to the sealing member 54.
- the peripheral portion of the sealing member 54 is bonded to the protection member 41.
- Example 1 the adhesion between the silicone resin sealing member 54 and the silver surface of the mounting pad 26 covered with the sealing member 54 is inferior to the adhesion between the resins. Therefore, when the diameter D of the sealing member 54 is reduced, the possibility that the sealing member 54 is peeled off from the substrate 21 is increased.
- the filling portion 42 of the resin protective member 41 into the grooves 26a to 26d of the mounting pad 26 is bonded to the resin mounting pad 26.
- etc. Is improved.
- the mounting pad 26 is reduced in diameter, peeling of the mounting pad 26 is suppressed. For this reason, the usage-amount of the sealing member 54 can be reduced.
- it is suitable for increasing the arrangement density of the mounting pads 26 and the light emitting elements 45.
- Example 1 the resin-made pipe 12 having the diffuse translucency that accommodates the light emitting module 15 diffuses the light emitted from the light emitting module 15 and emits it as illumination light to the outside. Moreover, the pipe 12 is straight, and a base 13 is attached to each end of the pipe 12 in the longitudinal direction. For this reason, the lamp 11 of Example 1 can be implemented as a straight tube lamp as a light source.
- the light transmittance of the pipe 12 is 85% or less, and the arrangement pitch of the light emitting elements 45 is 5 mm or more and 9 mm or less.
- the tendency that the plurality of light emitting elements 45 arranged in the longitudinal direction of the substrate 21 become bright spots and appear in the pipe 12 increases.
- the arrangement pitch of the light emitting elements 45 is less than 5 mm, the light emitting elements 45 are arranged with high density along the longitudinal direction of the substrate 21.
- the arrangement pitch of the light emitting elements 45 exceeds 9 mm, the light emitting elements 45 are arranged in a low density along the longitudinal direction of the substrate 21 accordingly, and the tendency of the reflection is increased.
- the diffusion light transmittance of the pipe 12 and the arrangement pitch of the light emitting elements 45 are defined as described above, it is low cost that a plurality of light emitting elements 45 become bright spots and appear in the pipe 12. Can be suppressed. At the same time, the pipe 12 can be illuminated with a substantially uniform brightness.
- Example 1 is configured as described above, but the embodiment of the present invention is not limited to Example 1.
- the light emitting device is described as the lamp having the base in the first embodiment, it can be implemented as a light emitting device without the base.
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Abstract
Description
蛍光体54bは、発光素子45が発した光によって励起されて、発光素子45が発する光の色とは異なる色の光を放射する。実施例1では、発光素子45が青色の光を発するので、前記励起によって、青色の光に対し補色の関係にある黄色系の光を放射する黄色蛍光体が使用されている。これにより、発光装置であるランプ11の出力光として白色光を出射させることができる。
Claims (7)
- 発光モジュールを具備する発光装置であって、
前記発光モジュールが、
基板と;
この基板上に配設された複数の半導体製の発光素子と;
蛍光体が混ぜられた透光性の樹脂を主成分としていて、前記基板上に接着された底面から盛り上がって一個以上の前記発光素子を個々に埋めて形成され、この盛り上がりの高さHに対する前記底面の径Dの比(H/D)が0.22から1.0である複数の封止部材と;
を備える。 - 請求項1に記載の発光装置において、前記封止部材が、レジン系シリコーン樹脂であり、その形成後の硬さがショア硬度で54以上94以下である。
- 請求項1に記載の発光装置において、前記基板上に配線パターンが形成され、この配線パターンの一部からなる実装パッドに前記発光素子が実装されているとともに、前記基板上に前記実装パッドに隣接するワイヤ接続部が形成されていて、これら実装パッドとワイヤ接続部とを接続したワイヤを備え、このワイヤの前記発光素子に接続された一端部が前記発光素子の厚み方向にこの素子から離れるように突出され、前記ワイヤ接続部に接続された前記ワイヤの他端部が斜めであり、かつ、前記一端部と他端部との間の前記ワイヤの中間部が前記一端部から曲がって前記発光素子と平行となるように形成されていて、この中間部の前記発光素子に対する突出高さが75μm以上125μm以下である。
- 請求項3に記載の発光装置において、前記基板上に前記配線パターンを覆った樹脂製の保護部材が形成され、この封止部材で前記実装パッドが覆われているとともに、前記実装パッドの周部の少なくとも一個所に溝が形成されていて、この溝に充填された前記保護部材の充填部位が前記封止部材に接着されている。
- 請求項1に記載の発光装置において、前記発光モジュールを収容した拡散透光性のパイプを更に備えている。
- 請求項5に記載の発光装置において、前記パイプの透光率が85%以下であり、前記発光素子の配設ピッチが5mm以上9mm以下である。
- 装置本体と;
前記装置本体に取付けられた少なくとも一対のソケットと:
拡散透光性の真っ直ぐなパイプ、このパイプが延びる方向に長く形成されて前記パイプに収容された発光モジュール、及び前記パイプの長手方向両端に取付けられた口金を備えて、前記ソケットに取外し可能に支持される直管形の発光装置と;
を具備する照明装置であって、
前記発光モジュールが、
基板と;
この基板上に配設された複数の半導体製の発光素子と;
蛍光体が混ぜられた透光性の樹脂を主成分としていて、前記基板上に接着された底面から盛り上がって一個以上の前記発光素子を個々に埋めて形成され、この盛り上がりの高さHに対する前記底面の径Dの比(H/D)が0.22から1.0である複数の封止部材と;
を備える。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP11870481.6A EP2738446A4 (en) | 2011-07-29 | 2011-07-29 | LIGHT-EMITTING DEVICE AND LIGHTING DEVICE |
US14/235,877 US20140218908A1 (en) | 2011-07-29 | 2011-07-29 | Light-Emitting Device and Luminaire |
PCT/JP2011/067527 WO2013018175A1 (ja) | 2011-07-29 | 2011-07-29 | 発光装置及び照明装置 |
JP2013526639A JP5748081B2 (ja) | 2011-07-29 | 2011-07-29 | 発光装置及び照明装置 |
CN201180072338.2A CN103649619B (zh) | 2011-07-29 | 2011-07-29 | 发光装置及照明装置 |
Applications Claiming Priority (1)
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PCT/JP2011/067527 WO2013018175A1 (ja) | 2011-07-29 | 2011-07-29 | 発光装置及び照明装置 |
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WO2013018175A1 true WO2013018175A1 (ja) | 2013-02-07 |
Family
ID=47628744
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EP (1) | EP2738446A4 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
US20140218908A1 (en) | 2014-08-07 |
JP5748081B2 (ja) | 2015-07-15 |
JPWO2013018175A1 (ja) | 2015-02-23 |
CN103649619A (zh) | 2014-03-19 |
CN103649619B (zh) | 2015-07-22 |
EP2738446A4 (en) | 2015-03-25 |
EP2738446A1 (en) | 2014-06-04 |
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