JP2012049396A - Light emitting device and lighting fixture - Google Patents

Abstract

An object of the present invention is to enable a color conversion member to be easily attached to and detached from a light emitting element.
A substrate 202 on which a light emitting element 201 is arranged is attached to mounting frames 211a and 211b of an apparatus main body 210. A reflective portion 203 is provided at a portion facing the substrate 202, and an emission port of the reflective portion 203 is covered with a color conversion member 205. A lever 208 is attached to the color conversion member 205, and the color conversion member 205 is interlocked with the lever 208. When the lever 208 is slid toward the storage frame 212, the color conversion member 205 moves into the storage frame 212 and is stored in the storage frame 212 along the guide rib 214. If the lever 208 is slid to the auxiliary frame 213 side, the color conversion member 205 can again cover the exit of the reflecting portion 203.
[Selection] Figure 6

Description

  The present invention relates to a light-emitting device and a lighting fixture for lighting a light-emitting diode, for example.

  A light emitting device (for example, Patent Document 1) that uses a fixed plate-shaped wavelength conversion member, or a lighting device that changes the emission color by rotating a disk body on which two types of phosphor films are arranged (for example, Patent Document 2) There is technology about.

JP 2007-180066 (paragraph [0012] to paragraph [0024], FIG. 1) JP 2009-231227 A (paragraph [0006] to paragraph [0010], FIG. 1)

In the light emitting device disclosed in Patent Document 1, the color conversion member (wavelength conversion member) is fixed with a special structure.
For this reason, when color conversion is unnecessary or when it is desired to perform color conversion to another color, it is necessary to modify the luminaire so that the color conversion member can be removed and assembled.
Further, in places where there are a large number of lighting fixtures, removal and assembly of the color conversion member cannot be handled immediately, and it is necessary to request a contractor, which requires work costs and construction periods.

In the lighting fixture disclosed in Patent Document 2, a large space is required to move the color conversion member (phosphor film).
For this reason, lighting fixture itself will become large.

  An object of the present invention is, for example, to enable a color conversion member to be easily attached and detached as necessary.

  The light-emitting device of the present invention is an element substrate on which a light-emitting element is attached to the front surface, and a cylindrical reflecting portion provided on the front surface side of the element substrate, and receives light emitted from the light-emitting element. A reflecting portion having an incident port, a reflecting surface that reflects light incident from the incident port, and an emitting port that emits light reflected by the reflecting surface; and a first arrangement that covers the emitting port of the reflecting unit A plate-like color conversion member that moves between a position and a second arrangement position that is out of the emission port of the reflection unit, and moves from the emission port of the reflection unit when moved to the first arrangement position. A color conversion member that transmits the emitted light and changes the color of the emitted light, and the color conversion member that is provided at the second arrangement position and the color conversion member is moved to the second arrangement position. And a storage unit for storing the device.

  According to the present invention, for example, the color conversion member can be easily attached to and detached from the light emitting element.

FIG. 3 is a perspective view of the lighting apparatus 100 according to Embodiment 1. Sectional drawing of the transversal direction of the lighting fixture 100 in Embodiment 1. FIG. 1 is a front view of a light emitting device 200 according to Embodiment 1. FIG. FIG. 3 is a cross-sectional view in the longitudinal direction of the light-emitting device 200 according to Embodiment 1. FIG. 3 is a perspective view illustrating an end portion of the light-emitting device 200 according to Embodiment 1. Sectional drawing of the transversal direction of the light-emitting device 200 in Embodiment 1. FIG. Sectional drawing of the transversal direction of the light-emitting device 200 in Embodiment 1. FIG. The perspective view which showed the edge part of the light-emitting device 200 in Embodiment 2 (application example 1). Sectional drawing which showed the edge part of the light-emitting device 200 in Embodiment 2 (application example 1). The front view of the light-emitting device 200 in Embodiment 2 (application example 2). Sectional drawing of the transversal direction of the light-emitting device 200 in Embodiment 2 (application example 2). Sectional drawing of the transversal direction of the light-emitting device 200 in Embodiment 2 (application example 3).

Embodiment 1 FIG.
FIG. 1 is a perspective view of a lighting fixture 100 in the first embodiment.
FIG. 2 is a cross-sectional view in the short direction of lighting apparatus 100 in the first embodiment.
The lighting fixture 100 in Embodiment 1 is demonstrated based on FIG. 1 and FIG.

The luminaire 100 includes a light emitting device 200 that turns on a light emitting element such as a light emitting diode, a main body cover 120 that covers and protects the light emitting device 200, a fixture main body 110 that fixes the light emitting device 200, and a main body cover 120 that is fixed to the fixture main body 110. A fixture 130 is provided.
The appliance main body 110 includes a power supply device (not shown) that supplies power to the light emitting device 200. The power supply device receives AC voltage / current from a commercial power supply, rectifies the input AC voltage / current into DC voltage / current, steps down the DC voltage / current obtained by the rectification, and outputs the voltage to the light emitting device 200. .

FIG. 3 is a front view of light-emitting device 200 in the first embodiment.
FIG. 4 is a cross-sectional view in the longitudinal direction of light-emitting device 200 in the first embodiment. In order to distinguish the color conversion member 205 from the color conversion member 205, the hatched lines representing the cross section of the apparatus main body 210 and the like are omitted (the same applies to the following cross sectional views).
FIG. 5 is a perspective view showing an end portion of light-emitting device 200 in the first embodiment.
An outline of the light-emitting device 200 according to Embodiment 1 will be described with reference to FIGS.

As shown in FIGS. 3 and 4, the light emitting device 200 includes an elongated rod-like device main body 210, an elongated substrate 202 is attached to the device main body 210, and a plurality of light emitting elements 201 (for example, light emitting diodes) are attached to the substrate 202. Are arranged in a line in the longitudinal direction. However, the plurality of light emitting elements 201 may be arranged in a plurality of rows.
In addition, a reflective surface 207 is provided for each light emitting element 201, and an opening of each reflective surface 207 is covered with an elongated rectangular color conversion member 205.

As shown in FIG. 5, a slide groove 209 is provided at one end in the longitudinal direction of the apparatus main body 210, and a lever 208 connected to the color conversion member 205 is attached to the slide groove 209.
By sliding the lever 208 along the slide groove 209 in the short direction of the apparatus main body 210 (in the direction of the arrow in FIG. 5), the opening of the reflection surface 207 can be opened and closed by the color conversion member 205. That is, the color conversion member 205 can be attached to and detached from the light emitting element 201 and the reflecting surface 207 by sliding the lever 208.

6 and 7 are cross-sectional views in the short-side direction of the light-emitting device 200 according to Embodiment 1. FIG.
The internal structure of the light emitting device 200 according to Embodiment 1 will be described with reference to FIGS.

In FIG. 6, the device main body 210 of the light emitting device 200 includes mounting frames 211 a and b for mounting the substrate 202 and a storage frame 212 for storing the color conversion member 205.
In addition, the apparatus main body 210 includes a reflection unit 203 that reflects light emitted from the light emitting element 201.
The attachment frame 211, the storage frame 212, the reflection portion 203, and an auxiliary frame 213 described later constitute an apparatus main body 210.

A substrate 202 is mounted in the mounting frame 211, a storage frame 212 is provided on one side of the mounting frame 211 in the short direction, and an auxiliary frame 213 is provided on the opposite side of the mounting frame 211 in the short direction. .
Hereinafter, the portion constituting the storage frame 212 side of the attachment frame 211 is referred to as “attachment frame 211a”, and the portion constituting the auxiliary frame 213 side of the attachment frame 211 is referred to as “attachment frame 211b”.

The mounting frames 211a and 211b are located on both sides of the substrate 202 in the short direction, and sandwich the substrate 202 from both sides in the short direction.
A light emitting element 201 is attached to the central portion of the substrate 202 in the short direction. Hereinafter, the surface on which the light emitting element 201 is attached is referred to as the front surface of the substrate 202.

  The reflection portion 203 is provided on the front surface side of the substrate 202, and has a conical and cylindrical reflection surface 207 at a portion facing the light emitting element 201 attached to the substrate 202. The cross-sectional shape of the reflecting surface 207 may be any of a quadrangle (see FIG. 5), a circle, a triangle, or other shapes.

The reflecting surface 207 receives the light of the light emitting element 201 from the opening (incident port) on the light emitting element 201 side, reflects the incident light on the side surface (reflecting surface), and reflects the incident light and the reflected light on the opposite side. The light is emitted from the opening (emission port).
The end of the reflecting surface 207 on the light emitting element 201 side is close to the substrate 202 and the light emitting element 201 so as not to contact each other.

The apparatus main body 210 includes a cover presser claw 206 that holds the cover 204, and a transparent cover 204 that covers the emission port of the reflection section 203 and protects the light emitting device 200 is attached to the apparatus main body 210.
The cover presser claw portion 206 is a convex portion that protrudes toward the center side in the short direction of the apparatus main body 210 and prevents the cover 204 from falling off.

The light emitting device 200 includes a lever 208 and a sheet-like (plate-like) color conversion member 205 connected to the lever 208.
The color conversion member 205 is disposed between the cover 204 and the reflection unit 203.

The color conversion member 205 is formed of a plastic resin, and a color conversion material that changes the wavelength of light is mixed in the plastic resin. The color conversion member 205 transmits light and changes the light wavelength to a specific color by changing the wavelength of the light. Light emitted from the light emitting element 201 is emitted from the light emitting device 200 while changing the color by the color conversion member 205.
The color conversion member 205 has flexibility (or elasticity) that curves (or bends) in an arc shape.

The storage frame 212 is a member having an L-shaped cross section, and is coupled to the mounting frame 211a at one end of the L shape, and a storage space for storing the color conversion member 205 is provided between the mounting frame 211a.
Guide ribs 214 having an arcuate cross section are attached to the storage frame 212 to assist the movement of the color conversion member 205 to the storage space.

The mounting frame 211a has slit-like openings (thin gaps) at two locations, a portion that is coupled to the reflecting portion 203 and a portion that is in contact with the substrate 202.
The two openings of the attachment frame 211a are entrances and exits for the color conversion member 205 to enter and exit the storage frame 212.

When the lever 208 is slid toward the storage frame 212 as shown in FIG. 7A, the color conversion member 205 enters the storage space formed by the storage frame 212 and the mounting frame 211a from the opening on the reflection portion 203 side. . Then, the color conversion member 205 is bent in an arc shape along the guide rib 214 and stored in the storage space in the storage frame 212 (second arrangement position). However, the tip portion of the color conversion member 205 that does not fit in the guide rib 214 enters the storage space formed by the reflective surface 207 and the mounting frame 211a from the opening on the substrate 202 side.
Since the color conversion member 205 does not cover the reflective surface 207, the light emitted from the light emitting element 201 is not color converted.

When the lever 208 is slid toward the auxiliary frame 213 as shown in FIG. 7 (2), the color conversion member 205 is retracted from the opening on the substrate 202 side and the opening on the reflection unit 203 side, and covers the reflection surface 207. (First arrangement position).
As a result, the color of light emitted from the light emitting element 201 changes to a color corresponding to the characteristics of the color conversion member 205.

According to the present invention, the color conversion member 205 can be attached to and detached from the light emitting element 201 and the reflecting surface 207 (covering / not covering the reflecting surface 207) by a simple lever operation. That is, it is not necessary to ask a trader to attach / detach the color conversion member 205, and the color conversion member 205 can be attached / detached without cost and time.
In addition, since the color conversion member 205 is built in the empty space generated between the outer frame (storage frame 212) and the inner frame (mounting frame 211a) of the apparatus main body 210, the light emitting device 200 and the lighting fixture 100 are reduced in size. Can do.

Embodiment 2. FIG.
An application example of the first embodiment will be described below. The application example described below has the same effect as that of the first embodiment. Hereinafter, items different from the first embodiment will be mainly described.

<Application example 1>
FIG. 8 is a perspective view showing an end portion of light-emitting device 200 in Embodiment 2 (Application Example 1).
FIG. 9 is a cross-sectional view showing an end portion of light-emitting device 200 in Embodiment 2 (Application Example 1).
As shown in FIG. 8, the lever 208 may be slid in the longitudinal direction of the apparatus main body 210 (the direction of the arrow in FIG. 8). The lever 208 is connected to the color conversion member 205, and the color conversion member 205 is interlocked with the movement (sliding) of the lever 208.

In FIG. 9, a base plate 215 constituting the bottom of the light emitting device 200 and a holding plate 216 holding the substrate 202 are attached to the apparatus main body 210, and a color conversion member 205 is accommodated between the bottom plate 215 and the holding plate 216. A gap is provided for this purpose. Further, a guide rib 214 for guiding the color conversion member 205 to the gap between the bottom plate 215 and the holding plate 216 is provided at the end of the light emitting device 200.
The color conversion member 205 moves along the guide rib 214 by a lever operation (see FIG. 8) and fits in the gap between the bottom plate 215 and the holding plate 216.

<Application example 2>
FIG. 10 is a front view of light-emitting device 200 according to Embodiment 2 (Application Example 2).
FIG. 11 is a cross-sectional view in the short-side direction of light-emitting device 200 according to Embodiment 2 (Application Example 2).
As shown in FIG. 11, two color conversion members 205 may be provided.

In FIG. 10, the light emitting device 200 includes levers 208a and 208b at both ends in the longitudinal direction.
In FIG. 11, a color conversion member 205a having a first color conversion characteristic (for example, a characteristic for changing the color of light to red) is attached to the lever 208a, and a second color conversion characteristic (for example, a light color) is attached to the lever 208b. The color conversion member 205b having the characteristic of changing the color of the color to green is attached.
In the apparatus main body 210, a storage space for the color conversion member 205a is provided on one side in the short side direction, a storage space for the color conversion member 205b is provided on the other side in the short side direction, and a guide rib 214 is provided in each storage space.
Further, a step is provided in the reflection portion 203 so that the color conversion member 205a and the color conversion member 205b do not collide when the color conversion member 205a (or the color conversion member 205b) covers the exit of the reflection surface 207. . In FIG. 11, the reflection part 203 is lower on the storage frame 212b side than on the storage frame 212a side.

When the lever 208a is slid toward the storage frame 212a, the color conversion member 205a can be stored within the storage frame 212a. When the lever 208b is slid toward the storage frame 212b, the color conversion member 205b is within the storage frame 212b. Can be stored.
When the levers 208a and b are slid to the opposite side, the color conversion members 205a and b can cover the exit of the reflecting surface 207. Either one of the color conversion members 205a and 205b may cover the emission port of the reflection surface 207, or the color conversion members 205a and 205b may be overlapped to cover the emission port of the reflection surface 207.

  Accordingly, (1) a state where color conversion is not performed, (2) a state where color conversion is performed by the color conversion member 205a, (3) a state where color conversion is performed by the color conversion member 205b, and (4) It is possible to realize a state in which the color conversion member 205a and the color conversion member 205b are overlapped to perform color conversion.

<Application example 3>
FIG. 12 is a cross-sectional view in the short-side direction of light-emitting device 200 according to Embodiment 2 (Application Example 3).
As shown in FIG. 12, the color conversion member 205 may be disposed between the entrance of the reflecting surface 207 and the substrate 202, and the color conversion member 205 may be brought close to the light emitting element 201.

  An insertion groove 217 for inserting the color conversion member 205 is provided between the incident port side of the reflection surface 207 and the substrate 202.

A holding plate 216 that holds the substrate 202 is attached to the attachment frame 211, and a bottom plate 215 that constitutes the bottom of the light emitting device 200 is attached to the storage frame 212.
A gap for storing the color conversion member 205 is provided between the holding plate 216 and the bottom plate 215.

  When the lever 208 is slid, the color conversion member 205 moves along the guide rib 214 in the storage frame 212 and fits in the gap between the holding plate 216 and the bottom plate 215.

  By bringing the color conversion member 205 close to the light emitting element 201, the light emitted from the light emitting element 201 is transmitted through the color conversion member 205 before being reflected by the reflecting surface 207 and attenuated. Color conversion can be performed.

  DESCRIPTION OF SYMBOLS 100 Lighting fixture, 110 Appliance main body, 120 Main body cover, 130 Fixture, 200 Light emitting device, 201 Light emitting element, 202 Substrate, 203 Reflection part, 204 Cover, 205, 205a, 205b Color conversion member, 206 Cover presser claw part, 207 Reflective surface, 208, 208a, 208b Lever, 209 Slide groove, 210 Device body, 211, 211a, 211b Mounting frame, 212, 212a, 212b Storage frame, 213 Auxiliary frame, 214 Guide rib, 215 Bottom plate, 216 Holding plate, 217 Insert groove.

Claims (6)

An element substrate on which the light emitting element is attached to the front surface;
A cylindrical reflecting portion provided on the front surface side of the element substrate, an incident port for receiving light emitted from a light emitting element, a reflecting surface for reflecting light incident from the incident port, and the reflecting surface A reflection part having an emission port for emitting the light reflected by
A plate-like color conversion member that moves between a first arrangement position that covers the emission port of the reflection unit and a second arrangement position that is off the emission port of the reflection unit, the first arrangement position. A color conversion member that transmits the emitted light emitted from the emission port of the reflecting portion and changes the color of the emitted light when moved to
A light emitting device, comprising: a storage portion that is provided at the second arrangement position and that stores the color conversion member when the color conversion member moves to the second arrangement position. An element substrate on which the light emitting element is attached to the front surface;
A cylindrical reflecting portion provided on the front surface side of the element substrate, an incident port for receiving light emitted from a light emitting element, a reflecting surface for reflecting light incident from the incident port, and the reflecting surface A reflection part having an emission port for emitting the light reflected by
A plate-like color conversion member that moves between a first arrangement position that covers the incident port of the reflecting portion and a second arrangement position that is off the incident port of the reflecting portion, the first arrangement position. A color conversion member that changes the color of incident light by transmitting incident light that has entered from the incident port of the reflective portion when moving to
A light emitting device, comprising: a storage portion that is provided at the second arrangement position and that stores the color conversion member when the color conversion member moves to the second arrangement position. The storage unit has an entrance / exit where the color conversion member enters and exits, and an arcuate guide part that assists the movement of the color conversion member entering / exiting the entrance / exit,
When the color conversion member moves to the second arrangement position, the color conversion member enters the guide portion from the entrance / exit of the storage portion, bends in an arc shape along the guide portion, and is stored in the storage portion. The light-emitting device according to claim 1 or 2. The light emitting device further includes a lever connected to the color conversion member and used for an operation of moving the color conversion member,
The light emitting device according to claim 1, wherein the color conversion member moves in conjunction with an operation of the lever. The light emitting device
The color conversion member includes a first color conversion member, the storage portion includes a first storage portion, the lever includes a first lever,
The light emitting device further includes:
A second color conversion member that moves between the first arrangement position and a third arrangement position opposite to the second arrangement position across the reflecting portion;
A second storage portion that is provided at the third arrangement position and that stores the second color conversion member when the second color conversion member moves to the third arrangement position;
The light-emitting device according to claim 4, further comprising a second lever connected to the second color conversion member. A light emitting device according to any one of claims 1 to 5,
A lighting fixture comprising: a fixture main body to which the light emitting device is attached.

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