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WO2022143331A1 - 光学模组及灯具 - Google Patents

光学模组及灯具 Download PDF

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Publication number
WO2022143331A1
WO2022143331A1 PCT/CN2021/140425 CN2021140425W WO2022143331A1 WO 2022143331 A1 WO2022143331 A1 WO 2022143331A1 CN 2021140425 W CN2021140425 W CN 2021140425W WO 2022143331 A1 WO2022143331 A1 WO 2022143331A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
reflector
guide element
optical module
light guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/140425
Other languages
English (en)
French (fr)
Inventor
许燚赟
尹松
邓诗涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Original Assignee
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202023299580.9U external-priority patent/CN214038023U/zh
Priority claimed from CN202011615797.8A external-priority patent/CN112682728B/zh
Priority claimed from CN202023299516.0U external-priority patent/CN214249270U/zh
Application filed by Opple Lighting Co Ltd, Suzhou Op Lighting Co Ltd filed Critical Opple Lighting Co Ltd
Publication of WO2022143331A1 publication Critical patent/WO2022143331A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings

Definitions

  • the present application relates to the field of lighting technology, in particular to an optical module and a lamp.
  • Spotlights are typical non-main lights and modern genre lighting equipment with no fixed scale. They can create an indoor lighting atmosphere. If a row of small spotlights are combined, the light can change into wonderful patterns. Because the small spotlight can freely change the angle, the effect of combined lighting is also ever-changing. The spotlight is soft and elegant, and it can also be partially illuminated to enhance the atmosphere. Spotlights are used like flashlights and are generally used outdoors. There are also indoor ones, because the varieties are different, so the uses are also different. The advantages of spotlights are prominent in specific environments. Spotlights have a very strong and unique feeling for space, color, and virtual reality.
  • the mainstream spotlights on the market generally use a deeper cavity depth, which causes the overall structure of the spotlight to be too large. It seriously affects the effect of indoor home decoration, and most of the light spots have poor cut-off.
  • the brightness of the light beam emitted by the spotlight is often uneven, and the brightness in the middle of the lamp surface is generally stronger than that at the edge.
  • the purpose of the present application is to provide an optical module for collimating light beams and simultaneously realizing ultra-thinning of lamps.
  • an optical module comprising a light guide element, including a first light incident surface, a first light exit surface and a second light exit surface; and a reflector connected to the light guide element;
  • the The reflector includes: a reflector body; a concave part, which is recessed on a surface of the reflector body; the light guide element is located in the concave part; and a reflecting surface, which is the bottom surface and the side surface of the concave part, and The second light emitting surfaces are oppositely arranged.
  • the optical module further includes a lens, the edge of which is connected to the edge of the reflector.
  • the lens includes: a second light incident surface arranged opposite to the first light exit surface; and a third light exit surface arranged opposite to the second light incident surface.
  • the second light incident surface and the reflection surface enclose an optical space, and the light guide element is located in the optical space.
  • the second light incident surface is a Fresnel sawtooth structure
  • the third light exit surface is a bead surface structure.
  • the maximum width of the light guide element is smaller than the width of the lens; and/or the maximum width of the reflector is smaller than or equal to the width of the lens.
  • the light guide element is a circular truncated body; the first light incident surface is the upper bottom surface of the circular truncated body; the first light emitting surface is the lower bottom surface of the circular truncated body; the second light emitting surface is the side of the circular truncated body wall.
  • a groove is provided at the center of the first light emitting surface, and the longitudinal section of the side wall of the groove is arc-shaped.
  • the longitudinal section of the light guide element is a wedge shape with two shortest sides connected to each other.
  • the maximum height of the light guide element is smaller than the maximum depth of the concave portion; the maximum width of the light guide element is smaller than the maximum width of the reflection surface.
  • the depth of the recess decreases from its center to its edge.
  • the reflector also includes
  • the through hole of the reflector penetrates through the center of the reflector body and is opposite to the first light incident surface.
  • the reflective surface is an inclined surface or an arc-shaped curved surface.
  • the optical module further includes a ring-shaped connector connecting the light guide element and the reflector.
  • the present application provides a lamp including the aforementioned optical module.
  • the lamp further includes a light source module, which includes: a lamp board, connected to the reflector and tangent to the surface of the reflector; and a lamp bead, which is arranged on one side of the lamp board surface, and is located in the through hole of the reflector.
  • a light source module which includes: a lamp board, connected to the reflector and tangent to the surface of the reflector; and a lamp bead, which is arranged on one side of the lamp board surface, and is located in the through hole of the reflector.
  • the lamp further comprises: a casing, the bottom plate and the side plate of the casing enclose a cavity; the reflector and the light source module are located in the cavity and are detachably connected to the bottom plate.
  • the lamp further comprises: a casing, the top of the side plate of the casing encloses the opening of the casing; the lens of the optical module is detachably connected to the opening of the casing.
  • annular gap exists between the side plate of the casing and the reflector; a protruding annular boss is provided at the edge of the lens of the optical module, which is clamped to the annular gap.
  • the lamp further includes an annular gasket located in the annular gap.
  • the reflector is provided with more than two bayonet openings, which penetrate through the reflector body and the lamp board; the edge of the light guide element is provided with more than two buckles, and each buckle is a detachable card. into one of the bayonets.
  • the present application provides an optical module and a lamp, wherein the light guide element is arranged in the concave portion of the reflector, the light source module is arranged in the through hole of the reflector, and the lamp board is attached to the reflector.
  • the surface of the component can be thinned, and the thickness of the optical module can be reduced, and then an ultra-thin lamp can be obtained after assembly.
  • the light is emitted from the light source module of the lamp to the light guide element, and the incident light entering the light guide element from the first light incident surface is totally reflected in the middle of the first light exit surface and the second light exit surface; part of the incident light is After total reflection, it irradiates the second light incident surface of the lens through the edge of the first light emitting surface; after total reflection, part of the incident light passes through the edge of the second light emitting surface and irradiates to the reflecting surface , after being reflected by the reflective surface, it is irradiated to the edge of the second light incident surface of the lens, and finally the light is transmitted through the lens and then collimated and emitted from the third light exit surface.
  • the present application controls the light to be emitted through the edge of the lens rather than from the edge region of the lens, so that the irradiated light spot is soft and not dazzling, and the large-angle light has strong cut-off and no glare.
  • the light emitted from the edge of the lens can be converged in a predetermined area in the middle, which can meet the needs of conventional spotlights.
  • FIG. 1 is a first perspective view of an optical module in an embodiment of the application
  • FIG. 2 is a second perspective view of the optical module in the embodiment of the application.
  • Fig. 3 is the sectional structure schematic diagram of Fig. 1 along A-A' place;
  • FIG. 4 is a schematic cross-sectional structure diagram of a light guide element in an embodiment of the present application.
  • FIG. 5 is a first perspective view of the light guide element in the embodiment of the application.
  • FIG. 6 is a second perspective view of the light guide element in the embodiment of the application.
  • FIG. 7 is a schematic cross-sectional structure diagram of a reflector in an embodiment of the present application.
  • FIG. 8 is a first perspective view of a reflector in an embodiment of the application.
  • FIG. 10 is a first perspective view of a lens in an embodiment of the application.
  • FIG. 11 is a second perspective view of the lens in the embodiment of the application.
  • FIG. 12 is a schematic diagram of an optical path of an optical module in an embodiment of the application.
  • FIG. 13 is a schematic cross-sectional structure diagram of a lamp according to an embodiment of the application.
  • light guide element 110 reflector 120; lens 130; recess 121;
  • Reflecting surface 1211 first reflecting surface 1212; second reflecting surface 1213.
  • an optical module 100 includes a light guide element 110 , a reflector 120 and a lens 130 .
  • the reflector 120 is connected to the light guide element 110 .
  • the edge of the lens 130 is connected to the edge of the reflector 120 .
  • the reflector 120 and the lens 130 form an optical space (not shown), and the light guide element 110 is located in the optical space.
  • the light guide element 110 includes a first light incident surface 111 , a first light exit surface 112 and a second light exit surface 113 .
  • the first light incident surface 111 cannot be damaged, and the inclined surface (the second light exit surface 113 ) can be partially damaged near the edge.
  • the longitudinal section of the light guide element 110 is a wedge shape with two shortest sides connected to each other. That is, the light guide element 110 is designed according to the wedge-shaped plate.
  • the wedge-shaped plate also known as the inclined plate, is thick on one side and thin in the shape of a wedge (triangle) on the other side from the point of view of the incident light.
  • the three-dimensional structure of the light guide element 110 is a circular truncated body; preferably a perfect circular truncated body.
  • the first light incident surface 111 is the upper bottom surface of the circular truncated body; as shown in FIG. 6 , the first light emitting surface 112 is the lower bottom surface of the circular truncated body; and the second light emitting surface 113 is the side wall of the circular truncated body.
  • the bottom surface with the shorter diameter is called the upper bottom surface, and the longer diameter is the lower bottom surface, regardless of the orientation.
  • the light guide element 110 uses optical grade acrylic/PC sheet, and then uses high-tech materials with extremely high refractive index and no light absorption, and uses laser engraving, V-shaped cross grid engraving, UV screen printing on the bottom surface of the optical grade acrylic sheet Printing technology prints light guide points (not shown).
  • a groove 1101 is disposed at the center of the first light emitting surface 112 , the side wall 1102 of the groove is an arc-shaped curved surface protruding inward, and the longitudinal section of the side wall 1102 of the groove is arc-shaped.
  • the reflector 120 is a flat cylindrical body, which includes a reflector body (not shown), a concave portion 121 , a reflector through hole 122 and a reflector surface 1211 .
  • the first light incident surface 111 of the light guide element 110 is installed in the concave portion 121 downward.
  • the inner surface of the light guide element 110 has a reflective structure, so that light can be totally reflected in the middle of the first light emitting surface 112 and the second light emitting surface 113 .
  • the incident angle is smaller than the total reflection angle, which directly breaks the total reflection and directly exits. and the edge of the second light emitting surface 113 emits light.
  • the recessed portion 121 is recessed on a surface of the reflector body; the light guide element 110 is located in the recessed portion 121 .
  • the reflecting surface 1211 is the bottom surface and the side surface of the recessed portion 121 , and is disposed opposite to the second light-emitting surface 113 ;
  • the reflector 120 has a cylindrical structure, and the reflector 1211 includes a first reflector 1212 and a second reflector 1213 .
  • the first reflection surface 1212 is the bottom surface of the recessed portion 121
  • the second reflection surface 1213 is the side surface of the recessed portion 121 .
  • the first reflective surface 1212 and the second reflective surface 1213 are integrally formed during fabrication.
  • the depth of the concave portion 121 of the reflector 120 first increases and then decreases from the center to the edge. On the reflective surface 1213, the depth of the recessed portion 121 decreases further from the edge portion thereof.
  • the depth of the concave portion 121 of the reflector 120 decreases from its center to its edge. Therefore, the shape of the recessed portion 121 is an inclined surface or an arc-shaped curved surface when viewed from a cross section thereof. That is, the cross-sectional shape of the reflection surface 1211 is an inclined surface or an arc-shaped curved surface.
  • the maximum height of the light guide element 110 is less than the maximum depth of the recessed portion 121; and the light guide element 110 can be arranged in the recessed portion 121 to prevent interference when the light guide element 110 and the lens 130 are installed.
  • the light emitted from the second light emitting surface 113 of the light guide element 110 is reflected to the lens 130 by the second reflecting surface 1213 , and the inclination angle of the cross section of the second reflecting surface 1213 requires certain requirements.
  • the depth of the recessed portion 121 is gradually reduced, so that the inclination angle of the cross-section of the second reflecting surface 1213 needs certain requirements when the second reflecting surface 1213 is made, so that the light can be reflected to the lens 130 through the second reflecting surface 1213. edge area.
  • the optical module 100 further includes a ring-shaped connector, and the ring-shaped connector 230 connects the light guide element 110 and the reflector 120 .
  • the lens 130 includes a second light incident surface 131 and a third light exit surface 132 disposed opposite to each other, and the second light incident surface 131 and the first light exit surface 112 are disposed opposite to each other.
  • the lens 130 homogenizes the light emitted from the light guide element, so that after the light is collimated and emitted from the third light emitting surface 132, the incident angle of the light reaching the preset target surface is within a predetermined range.
  • the second light incident surface 131 and the reflection surface 1211 enclose an optical space (not shown), and the light guide element 110 is located in the optical space.
  • the second light incident surface 131 has a Fresnel sawtooth structure, which is made of polyolefin material by injection molding, and the sawtooth shape is a Bezier curve.
  • the second light incident surface 131 is a zigzag structure composed of a plurality of concentric circular protrusions, and the concentric circular structure includes a plurality of annular grooves.
  • the diameters of the annular grooves are arranged in order from small to large.
  • the longitudinal section of the annular grooves Being triangular, the sawtooth structure can better gather the light and transmit it to the third light emitting surface 132 evenly.
  • the third light emitting surface 132 is a bead surface structure, and the bead surface structure is a honeycomb structure formed by a plurality of hexagonal protrusions.
  • the bead surface structure can better concentrate and emit the light from the second light incident surface 131 , and the bead surface structure makes the light distribution meet the requirements of the exit angle of the required lighting scene, so it can achieve the effect of spotlight illumination.
  • the light guide element 110 and the reflector 120 are assembled by assembling, specifically, the light guide element 110 is arranged in the concave portion 121 of the reflector 120, the light source module is arranged in the through hole of the reflector, and the light board is attached On the surface of the reflector, the thickness of the optical module 100 can be reduced, and an ultra-thin optical module 100 can be obtained.
  • the maximum width of the light guide element 110 is smaller than the width of the lens 130, and the width of the lens 130 is greater than or equal to the maximum width of the reflector 110; when the lens 130 covers the reflector 120, the second light incident surface 131 of the lens 130 An optical space (not marked) is formed with the recessed portion 121 , and the reflector 120 is disposed in the optical space to achieve the technical effect of thinning the optical module 100 .
  • the lamp includes the optical module 100 , the light source module 140 and the housing 210 described above.
  • the light source module 140 includes a lamp board 1401 and a lamp bead 1402 .
  • the light plate 1401 is tangent to the surface of the reflector 120 .
  • the lamp beads 1402 are disposed on the surface of one side of the lamp board 1401 and are located in the through holes 122 of the reflector. This can further reduce the thickness of an embodiment of the present application to achieve ultra-thinning.
  • the light source module 140 is disposed opposite to the through hole 122 of the reflector.
  • the light source module 140 is located on the central axis 150 of the light guide element 110 , so as to better emit light, which is then received by the light guide element 110 .
  • the bottom plate 201 and the side plate 202 of the casing 210 form a cavity (not shown).
  • the reflector 120 and the light source module 140 are located in the cavity, and are detachably connected to the bottom plate 201 through the connector 230 .
  • the light emitted by the light source module 140 of the present application passes through the first light incident surface 111 , the first light exit surface 112 , the second light entrance surface 131 and the third light exit surface in sequence. 132 out to achieve light collimation.
  • the specific light path diagram of the optical module 100 of the present application (as shown in FIG. 4 ), the light rays (a, b, e and f) are emitted from the light source module 140 to the light guide element 110 , and enter the light guide from the first light incident surface 111
  • the incident light of the element 110 is totally reflected in the middle of the first light emitting surface 112 and the second light emitting surface 113 ; part of the incident light (c and d) passes through the edge of the first light emitting surface 112 after total reflection and irradiates the lens 130.
  • the second light incident surface 131 part of the incident light passes through the edge of the second light exit surface 113 after total reflection and irradiates the reflective surface 1211, and is reflected by the reflective surface 1211 and then irradiates to the edge of the second light incident surface 131 of the lens 130 , and finally the light is transmitted through the lens 130 and then collimated and emitted from the third light emitting surface 132 .
  • the light is controlled to be emitted through the edge of the lens 130 and not emitted from the edge area of the lens 130 , so that the irradiated light spot is soft and not dazzling, and the large-angle light has strong cut-off and no glare.
  • the light rays emitted from the edge of the lens 130 can be converged in a predetermined area, thereby meeting the requirements of conventional spotlights.
  • the maximum width of the light guide element 110 is smaller than the maximum width of the lens 130 , and the maximum width of the light guide element 110 is smaller than the maximum width of the reflection surface 1211 . Further, the portion of the reflection surface 1211 that exceeds the width of the light guide element 110 receives the light emitted from the second light exit surface 113 and reflects it to the second light incident surface 131 of the lens 130 .
  • the optical module 100 is assembled by assembling the light guide element 110 and the reflector 120 , and specifically, the light guide element 110 is arranged in the recess 121 of the reflector 120 , so that the thickness of the optical module 100 can be reduced, and the light source module
  • the ultra-thin optical module 100 can be obtained by disposing the light plate in the through hole of the reflector and attaching the lamp board to the surface of the reflector.
  • the light rays (a, b, e and f) are emitted from the light source module 140 to the light guide element 110 , and the incident light entering the light guide element 110 from the first light incident surface 111 is at the first light exit surface 112 and the second light exit surface 113 .
  • Total reflection occurs in the middle; part of the incident light rays (c and d) pass through the edge of the first light exit surface 112 after total reflection and irradiate to the second light entrance surface 131 of the lens 130; part of the incident light rays pass through the second light entrance surface 131 after total reflection
  • the edge of the light-emitting surface 113 illuminates the reflective surface 1211 , is reflected by the reflective surface 1211 and then illuminates the edge of the second light-incident surface 113 of the lens, and finally the light is transmitted through the lens and collimated from the third light-emitting surface 132 .
  • the light emitted from the edge of the lens 130 can converge in a predetermined area facing the middle of the third light emitting surface 132 , so that the third light emitting surface 321 emits light uniformly as a whole, thereby meeting the needs of conventional spotlights.
  • FIG. 3 and FIG. 13 another embodiment of the present application provides a lamp 200 , which further includes a housing 210 and an annular gasket 205 :
  • the top of the side plate 202 of the casing 210 encloses the opening of the casing 210 .
  • the lens 130 of the optical module 100 is detachably connected to the opening of the housing 210.
  • the lens 130 can be snapped or screwed to the opening of the housing 210 .
  • An annular gap 206 exists between the side plate 202 of the housing 210 and the reflector 120 .
  • a protruding annular boss 207 is provided at the edge of the lens 130 of the optical module 100 and is clamped to the annular gap 206 .
  • the annular gasket 205 is located in the annular gap 206, and can fix the optical module 100 or play a role of sealing and buffering.
  • the reflector 120 is provided with more than two bayonet openings 204 , which penetrate through the reflector body and the lamp board 1401 . More than two buckles 203 are disposed at the edge of the light guide element 110 , and each buckle 203 is detachably engaged with a bayonet 204 .
  • the lamps provided by the embodiments of the present application are simple in assembly and convenient in processing, and can not only ensure that the thickness of the lamp body is thin, but also ensure stable connections between adjacent components.

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  • General Engineering & Computer Science (AREA)
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Abstract

本申请提供一种光学模组及灯具，光学模组，包括：导光元件、反射件以及透镜，通过将导光元件与反射件进行组装，具体地将导光元件设置在反射件的凹陷部中，进而可以减薄光学模组的厚度，可以得到超薄的光学模组。本申请控制光线经透镜透边缘射后准直射出，在满足射灯性能要求的同时使照射光斑柔和不刺眼，大角度光截止性强无眩光。

Description

光学模组及灯具
本申请要求了申请日为2020年12月31日，申请号为202011615797.8、202023299516.0和202023299580.9，发明名称为“光学模组及灯具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及照明技术领域，特别是一种光学模组及灯具。
背景技术
射灯是典型的无主灯、无定规模的现代流派照明设备，能营造室内照明气氛，若将一排小射灯组合起来，光线能变幻奇妙的图案。由于小射灯可自由变换角度，组合照明的效果也千变万化。射灯光线柔和，雍容华贵，其也可局部采光，烘托气氛。射灯的用途就像手电筒，一般是室外用的。室内用的也有，因为品种不同，所以用途也不同。射灯在特定环境下优势凸显，射灯对空间，色彩，虚实感受都十分强烈而独特。
目前市场上的主流射灯为了使初设光线准直和拥有较好的光效，一般都会采用较深的腔深，造成射灯整体结构过大，搭配导轨等其他配件，占据较大空间，严重影响室内家居装修效果，并且大多光斑截止性较差。此外，射灯照射出光束的亮度往往是不均衡的，灯面中部的亮度一般比其边缘处更强。
因此，有必要提供新的光学模组结构及灯具，用以解决传统射灯较厚的问题。
发明内容
本申请目的在于提供一种光学模组，用以将光束准直射出，同时实现灯具的超薄化。
为了达到上述目的，本申请提供一种光学模组，包括导光元件，包括第一入光面、第一出光面及第二出光面；以及反射件，连接至所述导光元件；所述反射件包括：反射件本体；凹陷部，下凹于所述反射件本体的一表面；所述导光元件位于所述凹陷部内：以及反射面，其为所述凹陷部的底面及侧面，与所述第二出光面相对设置。
进一步地，所述的光学模组还包括透镜，其边缘处连接至所述反射件的边缘处。
进一步地，所述透镜包括：第二入光面，与所述第一出光面相对设置；以及第三出光面，与所述第二入光面相对设置。
进一步地，所述第二入光面与所述反射面围成一光学空间，所述导光元件位于该光学空间内。
进一步地，所述第二入光面为菲涅尔锯齿结构；所述第三出光面为珠面结构。
进一步地，所述导光元件的最大宽度小于所述透镜的宽度；和/或，所述反射件的最大宽度小于或等于所述透镜的宽度。
进一步地，所述导光元件为圆台体；所述第一入光面为圆台体的上底面；所述第一出光面为圆台体的下底面；所述第二出光面为圆台体的侧壁。
进一步地，所述第一出光面的中心处设有一凹槽，该凹槽侧壁的纵向剖面为弧线形。
进一步地，所述导光元件的纵向截面为两个最短边彼此连接的楔形。
进一步地，所述导光元件的最大高度小于所述凹陷部的最大深度；所述导光元件的最大宽度小于所述反射面的最大宽度。
进一步地，所述凹陷部的深度从其中心处向其边缘处递减。
进一步地，所述反射件还包括
反射件通孔，贯穿于所述反射件本体的中心处，且与所述第一入光面相对设置。
进一步地，所述反射面为斜面或弧形曲面。
进一步地，所述的光学模组还包括环形连接件，连接所述导光元件与所述反射件。
本申请提供一种灯具，包括前文所述的光学模组。
进一步地，所述的灯具还包括光源模组，其包括：灯板，连接至所述反射件，且与所述反射件的表面相切；以及灯珠，设于所述灯板一侧的表面，且位于所述反射件通孔内。
进一步地，所述的灯具还包括：壳体，所述壳体的底板及侧板围成一空腔；所述反射件及所述光源模组位于所述空腔内，且可拆卸式连接至所述底板。
进一步地，所述的灯具还包括：壳体，所述壳体的侧板顶部围成所述壳体的开口；所述光学模组的透镜可拆卸式连接至所述壳体的开口处。
进一步地，所述壳体的侧板与所述反射件之间存在一环形间隙；所述光学模组的透镜边缘处设有突出的环形凸台，卡合至所述环形间隙。
进一步地，所述的灯具还包括环形垫圈，位于所述环形间隙内。
进一步地，所述反射件设有两个以上卡口，贯穿所述反射件本体及所述灯板；所述导光元件边缘处设有两个以上卡扣，每一卡扣可拆卸式卡合至一个所述卡口。
本申请的有益效果是：本申请提供一种光学模组及灯具，将导光元件设置在反射件的凹陷部中，将光源模组设置在反射件通孔内，将灯板贴附于反射件表面，可以减薄光学模组的厚度，进而可以组装后得到超薄灯具。
光线自灯具的光源模组射出至导光元件，从所述第一入光面进入导光元件的入射光线在第一出光面、第二出光面的中部发生全反射；部分所述入射光线在全反射后穿过第一出光面的边缘部照射到所述透镜的第二入光面；部分所述入射光线在全反射后穿过所述第二出光面的边缘部照射到所述反射面，经反射面反射后照射到所述透镜的第二入光面的边缘部，最后光线经透镜透射后从第三出光面准直射出。
此外，本申请控制光线经透镜边缘射出，并未从透镜边缘区域射出，使照射光斑柔和不刺眼，大角度光截止性强无眩光。而且，经透镜边缘射出的光线可以在中部的预设区域汇合，进而可以满足常规射灯的需要。
附图说明
下面结合附图和实施例对本申请作进一步的描述。
图1为本申请实施例中光学模组的第一立体图；
图2为本申请实施例中光学模组的第二立体图；
图3为图1沿A-A’处的剖面结构示意图；
图4为本申请实施例中导光元件的剖面结构示意图；
图5为本申请实施例中导光元件的第一立体图；
图6为本申请实施例中导光元件的第二立体图；
图7为本申请实施例中反射件的剖面结构示意图；
图8为本申请实施例中反射件的第一立体图；
图9为本申请实施例中反射件的第二立体图；
图10为本申请实施例中透镜的第一立体图；
图11为本申请实施例中透镜的第二立体图；
图12为本申请实施例中光学模组的光路示意图；
图13为本申请实施例灯具的剖面结构示意图
本申请的附图标记：
光学模组100；
导光元件110；反射件120；透镜130；凹陷部121；
光源模组140；第一入光面111；第一出光面112；
第二出光面113；第二入光面131；第三出光面132；
灯板1401；灯珠1402；凹槽1101；反射件通孔122；
反射面1211；第一反射面1212；第二反射面1213。
具体实施方式
为了更好地理解本申请的内容，下面通过具体的实施例对本申请作进一步说明，但本申请的实施和保护范围不限于此。
以下实施例的说明是参考附加的图式，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「顶」、「底」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。
实施例1
如图1～3所示，一种光学模组100，包括导光元件110、反射件120以及透镜130。
所述反射件120连接至所述导光元件110。所述透镜130的边缘处连接至所述反射件120的边缘处。
所述反射件120与所述透镜130形成一光学空间(未标出)，所述导光元件110位于该光学空间内。
如图3～6所示，导光元件110包括第一入光面111、第一出光面112及第二出光面113。 第一入光面111不可破坏，斜面(第二出光面113)靠近边缘可做部分破坏。
如图4所示，从导光元件110的剖面图看，导光元件110的纵向截面为两个最短边彼此连接的楔形。即导光元件110是根据楔形板进行设计的。楔形板又称斜板，从入光处来看为一边为厚，另一边为薄成楔形(三角形)状。
导光元件110的立体结构为圆台体；优选正圆台体。如图5所示，第一入光面111为圆台体的上底面；如图6所示，第一出光面112为圆台体的下底面；第二出光面113为圆台体的侧壁。在几何学上，称圆台直径较短的那个底面为上底面，直径较长的为下底面，与方位无关。
导光元件110是利用光学级的亚克力/PC板材，然后用具有极高折射率且不吸光的高科技材料，在光学级的亚克力板材底面用激光雕刻、V型十字网格雕刻、UV网版印刷技术印上导光点(未图示)。
如图6所示，第一出光面112的中心处设有一凹槽1101，该凹槽侧壁1102为向内突出的弧形曲面，该凹槽侧壁1102的纵向剖面为弧线形。
如图7～9所示，反射件120为一扁平的圆柱体，其包括：反射件本体(未标出)、凹陷部121、反射件通孔122以及反射面1211。
导光元件110的第一入光面111朝下安装至凹陷部121内。
在制备该导光元件110的时候，在导光元件110的内表面为反射结构，进而光线可以在第一出光面112、第二出光面113的中部发生全反射。而在第一出光面112、第二出光面113的边缘部，光束传播至导光元件110边缘时，入射角小于全反射角，直接打破全反射直接出射，进而可以实现在第一出光面112、第二出光面113的边缘部将光线射出。
如图8所示，凹陷部121下凹于反射件本体的一表面；导光元件110位于所述凹陷部121内。
反射面1211为凹陷部121的的底面及侧面，与第二出光面113相对设置；反射件通孔122贯穿于反射件本体的中心处，且与第一入光面111相对设置。
反射件120为圆柱体结构，反射面1211包括第一反射面1212以及第二反射面1213。第一反射面1212为凹陷部121的底面，第二反射面1213为凹陷部121的侧面。第一反射面1212以及第二反射面1213在制备的时候是一体制备形成。
反射件120的凹陷部121的深度从其中心处向其边先递增再递减，具体地，在第一反射面1212，凹陷部121的深度从其中心处向其边缘部先递增；在第二反射面1213，凹陷部121的深度从向其边缘部再递减。
在其它实施例中，反射件120的凹陷部121的深度从其中心处向其边缘处递减。因此，从凹陷部121的截面处观测其形状为斜面或弧形曲面。即反射面1211的截面形状为斜面或弧形曲面。
导光元件110的最大高度小于凹陷部121的最大深度；进而可以将导光元件110设置在 凹陷部121中，防止导光元件110与透镜130安装的时候相干扰。
一般从导光元件110的第二出光面113射出的光线经第二反射面1213反射至透镜130，进而第二反射面1213截面的倾斜角度需要一定的要求，因此需要在第一反射面1212的时候将凹陷部121的深度逐渐降低，进而可以在制作第二反射面1213的时候使第二反射面1213截面的倾斜角度需要一定的要求，可以使光线经第二反射面1213反射至透镜130的边缘区域。
在一实施例中，光学模组100还包括环形连接件，环形连接件230连接导光元件110与反射件120。
如图3以及图10所示，透镜130包括相对设置的第二入光面131以及第三出光面132，第二入光面131与第一出光面112相对设置。透镜130对从导光元件出射的光线进行均匀化，使得光线从第三出光面132准直出射后，到达预设的目标面的入射角所在预定范围内。
第二入光面131与反射面1211围成一光学空间(未标出)，导光元件110位于该光学空间内。
第二入光面131为菲涅尔锯齿结构，由聚烯烃材料注压而成，锯齿形状为贝塞尔曲线。第二入光面131为多个同心圆形凸起组成的锯齿状结构，并且该同心圆结构包括多个环形凹槽，环形凹槽的直径由小到大依次排列，环形凹槽的纵向剖面为三角形，锯齿状结构可以更好将光线聚集，均匀传递至第三出光面132。
如图3以及图11所示，第三出光面132为珠面结构，珠面结构为多个六边形凸起组成蜂窝状结构。珠面结构可以更好的将来自第二入光面131的光线聚集射出，并且该珠面结构使配光满足所需照明场景出射角度的需求，因此可以达到射灯照射效果的。
本申请通过将导光元件110与反射件120进行组装，具体地将导光元件110设置在反射件120的凹陷部121中，将光源模组设置在反射件通孔内，将灯板贴附于反射件表面，进而可以减薄光学模组100的厚度，可以得到超薄的光学模组100。
导光元件110的最大宽度小于所述透镜130的宽度，并且透镜130的宽度大于等于述反射件110的最大宽度；当透镜130覆盖所述反射件120，进而透镜130的第二入光面131与凹陷部121形成一光学空间(未标识)，将反射件120设置于光学空间中，达到减薄光学模组100的技术效果。
本申请一实施例提供一种灯具，如图3以及13所示，所述灯具包括前文所述的光学模组100、光源模组140以及壳体210。
光源模组140包括灯板1401以及灯珠1402。灯板1401与反射件120的表面相切。灯珠1402设于灯板1401一侧的表面，且位于反射件通孔122内。这可以更进一步的减轻本申请一实施例的厚度，实现超薄化。
光源模组140与反射件通孔122相对设置。光源模组140位于导光元件110的中心轴线150上，进而可以更好将光线射出，光线射出后被导光元件110所接收。
壳体210的底板201及侧板202围成一空腔(未标出)。反射件120及光源模组140位于空腔内，通过连接件230且可拆卸式连接至底板201。
如图12所示，本申请经光源模组140射出的光线(图中标记c和d)依次经第一入光面111、第一出光面112、第二入光面131以及第三出光面132射出，实现光线准直。
本申请光学模组100的具体光路图(如图4所示)，光线(a，b，e以及f)自光源模组140射出至导光元件110，从第一入光面111进入导光元件110的入射光线在第一出光面112、第二出光面113的中部发生全反射；部分入射光线(c以及d)在全反射后穿过第一出光面112的边缘部照射到透镜130的第二入光面131；部分入射光线在全反射后穿过第二出光面113的边缘部照射到反射面1211，经反射面1211反射后照射到透镜130的第二入光面131的边缘部，最后光线经透镜130透射后从第三出光面132准直射出。
本申请控制光线经透镜130边缘射出，并未从透镜130边缘区域射出，使照射光斑柔和不刺眼，大角度光截止性强无眩光。经透镜130边缘射出的光线可以在一预设区域汇合，进而可以满足常规射灯的需要。
为了能够实现部分入射光线在全反射后穿过第二出光面113的边缘部照射到反射面1211，经反射面1211反射至透镜130的边缘。需要导光元件110的最大宽度小于透镜130的最大宽度，导光元件110的最大宽度小于反射面1211的最大宽度。进而反射面1211宽度超出导光元件110的部分接收第二出光面113的出射光线并反射至透镜130的第二入光面131。
光学模组100通过将导光元件110与反射件120进行组装，具体地将导光元件110设置在反射件120的凹陷部121中，进而可以减薄光学模组100的厚度，将光源模组设置在反射件通孔内，将灯板贴附于反射件表面，可以得到超薄的光学模组100。光线(a，b，e以及f)自光源模组140射出至导光元件110，从第一入光面111进入导光元件110的入射光线在第一出光面112、第二出光面113的中部发生全反射；部分入射光线(c以及d)在全反射后穿过第一出光面112的边缘部照射到透镜130的第二入光面131；部分入射光线在全反射后穿过第二出光面113的边缘部照射到反射面1211，经反射面1211反射后照射到透镜的第二入光面113的边缘部，最后光线经透镜透射后从第三出光面132准直射出。
本申请使得大部分光线经透镜130边缘射出，而不是从透镜130边缘区域射出，使照射光斑柔和不刺眼，大角度光截止性强无眩光。而且，经透镜130边缘射出的光线可以在正对第三出光面132中部的一预设区域汇合，使得第三出光面321整体出光均匀，进而可以满足常规射灯的需要。
实施例2
参照图3以及图13所示，本申请的另一实施例提供一种灯具200，其还包括壳体210以及环形垫圈205：
壳体210的侧板202顶部围成壳体210的开口。光学模组100的透镜130可拆卸式连接 至壳体210的开口处。优选地，透镜130可卡合至或螺纹连接至壳体210的开口处。
壳体210的侧板202与反射件120之间存在一环形间隙206。光学模组100的透镜130边缘处设有突出的环形凸台207，卡合至环形间隙206。
环形垫圈205位于环形间隙206内，可以固定光学模组100或起到密封和缓冲作用。
反射件120设有两个以上卡口204，贯穿所述反射件本体及灯板1401。导光元件110边缘处设有两个以上卡扣203，每一卡扣203可拆卸式卡合至一个卡口204。
本申请实施例提供的灯具，组装简单，加工方便，除了可以保证灯体厚度较薄，还可以保证相邻部件之间的连接稳定。
应当指出，对于经充分说明的本申请来说，还可具有多种变换及改型的实施方案，并不局限于上述实施方式的具体实施例。上述实施仅仅作为本申请的说明，而不是对本申请的限制。总之，本申请的保护范围应包括那些对于本领域普通技术人员来说显而易见的变换或替代以及改型。

Claims (15)

  1. 一种光学模组，其中，包括
    导光元件，包括第一入光面、第一出光面及第二出光面；以及
    反射件，连接至所述导光元件；
    所述反射件包括：
    反射件本体；
    凹陷部，下凹于所述反射件本体的一表面；所述导光元件位于所述凹陷部内：以及
    反射面，其为所述凹陷部的底面及侧面，与所述第二出光面相对设置。
  2. 根据权利要求1所述的光学模组，其中，还包括
    透镜，其边缘处连接至所述反射件的边缘处，所述透镜包括
    第二入光面，与所述第一出光面相对设置，所述第二入光面为菲涅尔锯齿结构，所述第二入光面与所述反射面围成一光学空间，所述导光元件位于该光学空间内；
    以及第三出光面，与所述第二入光面相对设置，所述第三出光面为珠面结构。
  3. 根据权利要求2所述的光学模组，其中，
    所述导光元件的最大宽度小于所述透镜的宽度；和/或，
    所述反射件的最大宽度小于或等于所述透镜的宽度。
  4. 根据权利要求1所述的光学模组，其中，
    所述导光元件为圆台体；
    所述第一入光面为圆台体的上底面；
    所述第一出光面为圆台体的下底面；
    所述第二出光面为圆台体的侧壁。
  5. 根据权利要求1所述的光学模组，其中，
    所述第一出光面的中心处设有一凹槽，该凹槽侧壁的纵向剖面为弧线形。
  6. 根据权利要求1所述的光学模组，其中，
    所述导光元件的纵向截面为两个最短边彼此连接的楔形，所述导光元件的最大高度小于所述凹陷部的最大深度；
    所述导光元件的最大宽度小于所述反射面的最大宽度。
  7. 根据权利要求1所述的光学模组，其中，
    所述凹陷部的深度从其中心处向其边缘处递减。
  8. 根据权利要求1所述的光学模组，其中，所述反射件还包括
    反射件通孔，贯穿于所述反射件本体的中心处，且与所述第一入光面相对设置。
  9. 根据权利要求1所述的光学模组，其中，
    所述反射面为斜面或弧形曲面。
  10. 根据权利要求1所述的光学模组，其中，还包括
    环形连接件，连接所述导光元件与所述反射件。
  11. 一种灯具，其中，包括权利要求1-10中任一项所述的光学模组以及光源模组，所述光源模组包括：
    灯板，连接至所述反射件，且与所述反射件的表面相切；以及
    灯珠，设于所述灯板一侧的表面，且位于所述反射件通孔内。
  12. 根据权利要求11所述的灯具，其中，还包括：
    壳体，所述壳体的底板及侧板围成一空腔；
    所述反射件及所述光源模组位于所述空腔内，且可拆卸式连接至所述底板。
  13. 根据权利要求11所述的灯具，其中，还包括：
    壳体，所述壳体的侧板顶部围成所述壳体的开口；
    所述光学模组的透镜可拆卸式连接至所述壳体的开口处；
    以及环形垫圈，位于所述环形间隙内。
  14. 根据权利要求11所述的灯具，其中，
    所述壳体的侧板与所述反射件之间存在一环形间隙；
    所述光学模组的透镜边缘处设有突出的环形凸台，卡合至所述环形间隙。
  15. 根据权利要求11所述的灯具，其中，
    所述反射件设有两个以上卡口，贯穿所述反射件本体及所述灯板；
    所述导光元件边缘处设有两个以上卡扣，每一卡扣可拆卸式卡合至一个所述卡口。
PCT/CN2021/140425 2020-12-31 2021-12-22 光学模组及灯具 Ceased WO2022143331A1 (zh)

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CN202011615797.8A CN112682728B (zh) 2020-12-31 2020-12-31 光学模组及灯具
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