CN106287330A

CN106287330A - Light emitting module

Info

Publication number: CN106287330A
Application number: CN201510304083.8A
Authority: CN
Inventors: 谢锦坤; 简俊杰
Original assignee: Epoch Chemtronics Corp
Current assignee: Epoch Chemtronics Corp
Priority date: 2015-06-04
Filing date: 2015-06-04
Publication date: 2017-01-04

Abstract

The present invention is related to a kind of light emitting module, it comprises light source, optical plate and reflecting element, optical plate has incidence surface, exiting surface and bottom surface, the dual-side of incidence surface connects exiting surface and bottom surface respectively, exiting surface is relative to bottom surface, light source is arranged at the side of incidence surface, and multiple optical texture is arranged at exiting surface, and these optical textures are in leaning on the distribution density into light source to be less than the distribution density away from light source, a part of light is utilized to scatter light outside exiting surface through these optical textures, another part light is scattered light by this reflecting element diffuse-reflectance outside this exiting surface, multiple reflections is utilized to be scattered by light, the area source making exiting surface uniformly goes out light, so without arranging diffuser plate or atomization light-emitting area again.

Description

Light emitting module

Technical field

The invention relates to a kind of light emitting module, the exiting surface being espespecially directed to optical plate arranges multiple The light emitting module of optical texture.

Background technology

The modern life is more and more progressive, and high-tech industry is flourish, is related to the industry in terms of light fixture Scale and the world big inter-plant keen competition expanding day, in the middle of this one trend, is directed to light emitting diode (LED) competition that light fixture also seems suitable, and it is related to the research and development side of the light guide structure of light emitting diode Face, also seems relative important.

But, in recent years along with the lifting of LED lamp manufacturing technology, in large scale and low price Trend under, the many external forms by traditional lighting light fixture of existing LED lamp are limited, and cause light fixture Outward appearance thick and heavy, and unsightly, to modify on LED lamp further, then can increase lamp The overall weight of tool,

Also, the LED lamp of known techniques all must be further added by arranging in internal illumination module Brightness enhancement film or diffusion sheet, to increase brightness and the uniformity of LED lamp, consequently, it is possible to luminous two Pole spot lamps structure is required for increasing certain thickness, and more causes in LED lamp design in this Difficulty, further, since LED lamp is the most thick and heavy, so being designed to be supported in light emitting diode The structure of light fixture also will relatively big, and also cannot be applicable to all of mounting means (such as: enter, inhale Top or suspention), so known LED lamp cannot make the utilization of multiplex fashion, so for this portion Divide the research and development of technical shortcoming, be that everybody needs direction and the important topic of joint efforts, and current Light fixture is mostly considering lightweight, slimming, low power consumption, high brightness and is reducing the market demands of cost, and For being maintained at the competitiveness in following light fixture market, it should be directed to reduce cost and set about carrying out with lightweight aspect Design lamps.

In view of this, the shortcoming being directed in known techniques, inventor develops a kind of luminous mould further Block, in addition to there is known advantage, and the structure designed can effectively promote light emitting module brightness and The uniformity, and the use of brightness enhancement film or diffusion sheet can be saved, except reducing light fixture cost, it is also possible to there is light weight The effect changed exists, and can be easy to light fixture and do diversified utilization and design.

Summary of the invention

The purpose of the present invention, is to provide a kind of light emitting module, and it can be not required to go out light in optical plate Any structure of additional (such as: diffusion sheet or brightness enhancement film etc.) on face, it becomes possible to make the exiting surface by optical plate Light can be luminous adequately and uniformly.

The purpose of the present invention, is to provide a kind of light emitting module, its can with lightweight light emitting module structure, And reduce the cost of light emitting module.

The purpose of the present invention, is to provide a kind of light emitting module, its utilize ink printing optical texture in The exiting surface of optical plate, to strengthen the protection of the exiting surface for optical plate.

By reaching above-mentioned censured purpose and effect, the present invention is a kind of light emitting module, and it comprises a light Source, an optical plate and a reflecting element, this optical plate has an incidence surface, an exiting surface and a bottom surface, and this enters The dual-side of bright finish connects this exiting surface and this bottom surface respectively, and this exiting surface is relative to this bottom surface, and this light source sets Be placed in the side of this incidence surface, and multiple optical texture be arranged at this exiting surface, and these a few optical textures in Distribution density near this light source is less than the distribution density away from this light source, and this reflecting element is arranged at this optical plate This bottom surface under, wherein, this light source sends a light, and this light is incident in this optical plate from this incidence surface, A part this light outwards scatter light through these a few optical textures of this exiting surface, this light of another part by This reflecting element that this light is reflected towards under this bottom surface by this optical texture, and this reflecting element is by this light diffuse-reflectance Return optical plate, and gone out light by this exiting surface.

One embodiment of the invention, is that disclosing this bottom surface is smooth mirror surface structure.

One embodiment of the invention, is that disclosing this optical texture each is site or micro structure.

One embodiment of the invention, is that disclosing these a few optical textures utilizes ink printing to go out light in this On face.

One embodiment of the invention, is that disclosing this reflecting element further is arranged at the outside of this light source.

One embodiment of the invention, is to disclose this reflecting element further extended in this incidence surface phase Side bright finish for this optical plate.

One embodiment of the invention, is that exposure has a secondary light source, and this secondary light source is arranged at this The side bright finish that incidence surface is relative.

One embodiment of the invention, is to disclose these a few optical textures dividing near this secondary light source Cloth density is less than the distribution density away from this secondary light source.

One embodiment of the invention, is that disclosing this reflecting element is more arranged at this secondary light source and this light source Outside.

Accompanying drawing explanation

Fig. 1: it is the axonometric chart of light emitting module of the first embodiment of the present invention；

Fig. 2: it is the side view of light emitting module of the first embodiment of the present invention；

Fig. 3: it is the light path schematic diagram of light emitting module of the first embodiment of the present invention；

Fig. 4: it is the axonometric chart of light emitting module of the second embodiment of the present invention；

Fig. 5: it is the side view of light emitting module of the second embodiment of the present invention；

Fig. 6: it is the light path schematic diagram of light emitting module of the second embodiment of the present invention；And

Fig. 7: it is the reflecting element schematic diagram of light emitting module of the third embodiment of the present invention.

[figure number is to as directed]

1 light emitting module

11 optical plates

100 light

111 incidence surfaces

112 exiting surfaces

113 bottom surfaces

114 optical textures

115 sidelight faces

12 light sources

13 reflecting elements

21 secondary light sources

Detailed description of the invention

In order to the architectural feature making the present invention and effect of being reached have a better understanding and awareness, Spy's preferred embodiment and cooperation detailed description, be described as follows:

The present invention is directed to known light emitting module technology improve, traditional light emitting module all must be in optics Brightness enhancement film or diffusion sheet etc. refraction or diffusing structure are set on plate, to increase the uniform light degree of light emitting module, If the design of optical plate can effectively promote brightness and the uniformity of light emitting module, brightness enhancement film or diffusion just can be saved Sheet etc. refraction or the use of diffusing structure, except reducing module cost, it is also possible to there is light-weighted effect to deposit , so inventor is for the research and development of this portion of techniques, and provide a kind of light emitting module can reduce mould Block cost and reduce volume and weight.

Referring to Fig. 1 and Fig. 2, it is axonometric chart and the side view of the first embodiment of the present invention；Such as figure Shown in, the present embodiment relates to a kind of light emitting module 1, and this light emitting module 1 comprises optical plate 11, light Source 12 and a reflecting element 13, this optical plate 11 has incidence surface 111, exiting surface 112 and a bottom surface 113, The dual-side of this incidence surface 111 connects this exiting surface 112 and this bottom surface 113 respectively, this exiting surface 112 relative to This bottom surface 113, this light source 12 is arranged at the side of this incidence surface 111, and multiple optical texture 114 is arranged at this Exiting surface 112, and these a few optical textures 114 in the distribution density near this light source 12 less than away from this light source The distribution density of 12, this reflecting element 13 is arranged at this bottom surface 113 times of this optical plate 11, further by this reflection Part 13 extended in this incidence surface 111 relative to the side bright finish 115 of this optical plate 11.

In the present embodiment, these a few optical textures 114 with ink printing on this exiting surface 112, often One this optical texture 114 is site or micro structure etc., and available this optical texture 114 each carries out light Scattering and reflection, and this light source 12 is LED source, and this of this optical plate 11 of this light emitting module 1 Bottom surface 113 is smooth mirror surface structure, it addition, this reflecting element 13 is non-specular surface structure.

See also Fig. 3, its be the first embodiment of the present invention light emitting module light path signal Figure；As it can be seen, this light source 12 of the present embodiment sends a light 100, this light 100 is from this incidence surface 111 Being incident in this optical plate 11, this light 100 (first path light) is emitted directly toward this exiting surface 112, and warp Crossing this few optical textures 114, this light 100 is because of these a few destroyed total reflections of optical texture 114, and causes This light 100 of a part penetrates this exiting surface 112 and scatters light, also has this light 100 of another part to be reflected Go back to this bottom surface 113 of this optical plate 11, and be irradiated in this reflecting element 13 through this bottom surface 113, and this reflection Part 13 is non-specular surface structure, and this light 100 can be made to produce diffuse-reflectance, i.e. this light 100 is radiated at rough surface, And this light 100 without conforming to pollodic phenomenon, this light 100 is scattered light echo by this reflecting element 13 Learn plate 11, and gone out light by this exiting surface 112.

Furthermore, another part this light 100 (the second path light) then this bottom surface 113 of directive, this light 100 directives have this bottom surface 113 of smooth mirror surface structure, and this light 100 is reflected directly toward this exiting surface 112, Until after this light 100 is destroyed total reflection by these a few optical textures 114 of this exiting surface 112, continuing identical Light mode and result is gone out in first path light, therefore, repeat no more.

It addition, this light 100 (the 3rd path light) of another part directly penetrates this sidelight face 115, And by this reflecting element 13 this light 100 is reflected back this optical plate 11, and this light 100 also directive this go out light Face 112, and it is same as illumination mode and the result of aforementioned first path light, therefore, repeat no more.

The shortcoming of the present embodiment improvement known techniques, is related in the known techniques of light emitting module, generally Being arranged at by optical texture bottom optical plate, a part of light need to be through optical texture reflection and scattering to going out light Face is penetrated, and another part light is not required to directly penetrate to exiting surface through optical texture, and does not have light Line dispersion effect, still it can be seen that significantly clear zone is distributed with dark space at exiting surface, this is non-uniform light As a result, so needing to be arranged at the exiting surface of optical plate by diffusion sheet (or atomization light-emitting area) further, make Through being more uniformly distributed of light diffusion of diffusion sheet (or atomization light-emitting area), and covering optical plate, to go out light uneven Flaw, meanwhile, also has the exiting surface effect utilizing diffusion sheet (or atomization light-emitting area) protection optical plate, but, This mode can increase outside volume and the weight of light emitting module, also can improve manufacturing cost, and the present embodiment carries For a kind of light emitting module 1, these a few optical textures 114 are arranged at this exiting surface 112, and these a few light by it Learn structure 114 in the distribution density near this incidence surface 111 less than the distribution density away from this incidence surface 111, its Advantage is, this light 100 being emitted directly toward this exiting surface 112 need to be through these a few optics of this exiting surface 112 Structure 114, makes this light 100 of part be affected by this optical texture 114, and scatters light, and another part should Light 100 is affected by optical texture 114, and causes this reflection that this light 100 is reflected towards outside this bottom surface 113 Part 13, this light 100 is affected by the diffuse-reflectance of the non-specular surface structure of this reflecting element 13, and light scattering is pointed into This exiting surface 112, utilizes multiple reflections that this light 100 is scattered mode, makes the face light of this exiting surface 112 Source uniformly goes out light, and then makes this exiting surface 112 be not required to additional diffusion sheet or atomization light-emitting area etc. uniform light The assembly of line, and these a few optical textures 114 with ink printing in this exiting surface 112 of this optical plate 11, make The hardness of this exiting surface 112 of this optical plate 11 is higher than this exiting surface of this optical plate 11 of non-printing-ink The hardness of 112, effect of this exiting surface 112 of this few optical textures 114 this optical plate 11 the most protected.

Referring to Fig. 4 to Fig. 6, it is the axonometric chart of the second embodiment of the present invention, side view and light path Footpath figure；As it can be seen, the present embodiment is compared to the difference of first embodiment, the present embodiment is further Arranging a secondary light source 21, this secondary light source 21 is arranged at this sidelight face 115 of this optical plate 11, and this goes out The distribution density of these a few optical textures 114 on bright finish 112 is further away from this secondary light source 21 and this light source 12 Distribution density is the closeest, in other words, those optical textures 114 concentrate branch in the mid portion of this optical plate 11, The most sparse with the distribution density of this light source 12 near this secondary light source 21, and the light of this secondary light source 21 Radiation modality is also same as the light radiation modality of this light source 12, and above-mentioned this secondary light source 21 of setting up can strengthen The light intensity of this light emitting module 1, and other function and structure are all same as first embodiment, therefore repeat no more.

Furthermore, seeing also Fig. 7, it is the reflecting element of light emitting module of the third embodiment of the present invention Schematic diagram；As it can be seen, the difference of the present embodiment and the second embodiment is, the present embodiment further should Reflecting element 13 is arranged at the outside of this light source 12 and this secondary light source 21, makes this light source 12 and this secondary light source 21 Light can concentrate and irradiate to this optical plate 11, promote the service efficiency of light, the present embodiment also apply be applicable to First embodiment.

In sum, the invention relates to a kind of light emitting module, it comprises an optical plate and a light source, Multiple optical textures are arranged at this exiting surface of this optical plate, and the distribution density of these a few optical textures is more The most sparse near the distribution density of light source (this light source or this secondary light source) place then these a few optical textures, anti- Then the distribution density of these a few optical textures is the closeest, makes this light these a few optical textures by this exiting surface And produce and scatter light, and then the area source of this exiting surface uniformly goes out light, this exiting surface is not required to additional and expands The assembly of discrete piece or atomization light-emitting area etc. uniform light, to reduce volume and weight, and reduces cost etc., It addition, utilize these a few chemical constitutions of ink printing on this exiting surface, the exiting surface of the most protected optical plate Effect.

Above is only presently preferred embodiments of the present invention, be not used for limiting the scope that the present invention implements, All equalizations done according to the shape described in scope of the invention as claimed, structure, feature and spirit change and repair Decorations, all should be included in scope of the presently claimed invention.

Claims

1. a light emitting module, it is characterised in that it comprises:

One light source；

One optical plate, it has an incidence surface, an exiting surface and a bottom surface, the dual-side of this incidence surface connects this exiting surface and this bottom surface respectively, this exiting surface is relative to this bottom surface, this light source is arranged at the side of this incidence surface, and multiple optical texture is arranged at this exiting surface, and these a few optical textures in the distribution density near this light source less than the distribution density away from this light source；And

One reflecting element, it is arranged under this bottom surface of this optical plate；

Wherein, this light source sends a light, this light is incident in this optical plate from this incidence surface, this light of a part outwards scatters light through these a few optical textures of this exiting surface, this reflecting element that this light is reflected towards under this bottom surface by this light of another part by this optical texture, and optical plate is returned in this light diffuse-reflectance by this reflecting element, and gone out light by this exiting surface.

2. light emitting module as claimed in claim 1, it is characterised in that wherein this bottom surface is smooth mirror surface structure.

3. light emitting module as claimed in claim 1, it is characterised in that this optical texture of each of which is site or micro structure.

4. light emitting module as claimed in claim 1, it is characterised in that wherein these a few optical textures utilize ink printing on this exiting surface.

5. light emitting module as claimed in claim 1, it is characterised in that this reflecting element is arranged at the outside of this light source further.

6. light emitting module as claimed in claim 1, it is characterised in that further this reflecting element extended in this incidence surface relative to the side bright finish of this optical plate.

7. light emitting module as claimed in claim 1, it is characterised in that having a secondary light source further, this secondary light source is arranged at the side bright finish that this incidence surface is relative.

8. light emitting module as claimed in claim 7, it is characterised in that wherein these a few optical textures are less than the distribution density away from this secondary light source in the distribution density near this secondary light source.

9. light emitting module as claimed in claim 7, it is characterised in that wherein this reflecting element is more arranged at the outside of this secondary light source and this light source.