CN104565879A - LED light source module - Google Patents
LED light source module Download PDFInfo
- Publication number
- CN104565879A CN104565879A CN201310467465.3A CN201310467465A CN104565879A CN 104565879 A CN104565879 A CN 104565879A CN 201310467465 A CN201310467465 A CN 201310467465A CN 104565879 A CN104565879 A CN 104565879A
- Authority
- CN
- China
- Prior art keywords
- led
- optical element
- reflecting surface
- light source
- substrate
- 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.)
- Pending
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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
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- 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
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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
- F21Y2101/00—Point-like light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses an LED light source module which comprises a substrate, an LED light source arranged on the substrate, an optical element arranged in the forward light emergence direction of the LED light source, and a diffusion plate arranged above the optical element, wherein the upper surface of the substrate is a reflection surface for light reflection; a light transmitting hole corresponding to the LED light source is formed in the optical element; a reflection body facing to the light transmitting hole is arranged at a part, over against the light transmitting hole of the optical element, of the diffusion plate; a reflection surface over against the light transmitting hole is arranged on the reflection body; light emitted by the LED light source is reflected to the upper surface of the substrate when being emitted to the reflection surface of the reflection body, and then is reflected to the diffusion plate by the upper surface of the substrate.
Description
Technical field
The present invention relates to a kind of light source module, particularly relate to a kind of LED light source module.
Background technology
Compared to traditional light emitting source, light emitting diode (Light Emitting Diode, LED) has the advantages such as lightweight, volume is little, it is low to pollute, the life-span is long, and it is as a kind of novel light emitting source, is applied to more and more in the middle of each field.Optical field distribution due to light emitting diode is lambertian distribution, and the light intensity namely directly over it is the strongest, and light intensity around weakens successively, therefore often needs to add an optical lens and more to disperse and evenly to the light making light emitting diode send.But the light intensity that the setting of this optical lens makes light emitting diode send diffuses to a certain degree, and the light intensity directly over light emitting diode is still greater than the light intensity of peripheral region, thus makes the luminosity of this LED source uneven.
Summary of the invention
Given this, the present invention aims to provide the uniform LED light source module of a kind of luminosity.
A kind of LED light source module, comprise substrate, be arranged at the LED source on this substrate, the diffuser plate being arranged at the optical element on the forward light direction of this LED source and being arranged at above this optical element, the upper surface of this substrate is the reflecting surface of reflection ray, this optical element is provided with to should the light hole of LED source, this diffuser plate is just provided with towards the reflector of this light hole to the light hole place of this optical element, and this reflector has just to the reflecting surface of this light hole, the upper surface of this substrate is reflected onto time on the beam projecting that LED source sends to the reflecting surface of this reflector, diffuser plate is reflexed to again by the upper surface of this substrate.
Due to the setting of the reflecting surface of this substrate and the reflecting surface on this diffuser plate, make the light intensity decreasing directly over this LED source, the light intensity of peripheral region increases, thus balance the light intensity in each region of this LED light source module, make the emitting brightness of this LED light source module more even.
Accompanying drawing explanation
The generalized section of the LED light source module that Fig. 1 provides for one embodiment of the invention.
Main element symbol description
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1, be depicted as the structural representation of the LED light source module 1 of an embodiment provided by the present invention.LED light source module 1 comprises a substrate 10, is arranged at the LED source 20 on substrate 10, and the forward being located at LED source 20 goes out the optical element 30 on light path and is located at the diffuser plate 40 above optical element 30.
Substrate 10 is in lamellar, and it has a upper surface 11.Upper surface 11 is provided with the material with reflectivity properties or direct for having the metal covering of better reflecting properties, thus makes the light be incident on it be reflected onto the top of substrate 10.In the present embodiment, upper surface 11 can be smooth plane, also can be coarse on-plane surface.
LED source 20 is arranged on the upper surface 11 of substrate 10, and is electrically connected with this substrate 10.LED source 20 is a package structure for LED.
Optical element 30 to be arranged on directly over LED source 20 and and LED source 20 interval arrange.Optical element 30 has relative end face 31 and a bottom surface 32, and connects a side 33 of end face 31 and bottom surface 32.End face 31 is towards diffuser plate 40, and bottom surface 32 is just to this LED source 20.Optical element 30 is provided with a light hole 34, and light hole 34 runs through the end face 31 of optical element 30 and the middle part of bottom surface 32.In the present embodiment, end face 31 is an optical surface, and bottom surface 32 is a plane, and side 33 is perpendicular to bottom surface 32.The exiting surface of light hole 34 respective leds light source 20, the size of light hole 34 is greater than the size of LED source 20 exiting surface.
Diffuser plate 40 is in thin type tabular, and it can make the light be incident on it penetrate more equably.Diffuser plate 40 has relative incidence surface 41 and an exiting surface 42.Incidence surface 41 is just provided with a reflector 43 protruded out towards light hole 34 to light hole 34 place of optical element 30.In the present embodiment, reflector 43 is large compared with the internal diameter of light hole 34 along the size of light hole 34 radial direction.The cross section of reflector 43 is triangular in shape, and reflector 43 has one first reflecting surface 431 being positioned at left side and one second reflecting surface 432 being positioned at right side, and the first reflecting surface 431 and the second reflecting surface 432 are towards the light hole 34 of optical element 30.First reflecting surface 431 and the second reflecting surface 432 are provided with the material or direct for having the metal covering of better reflecting properties with reflectivity properties, thus making the light be incident on the first reflecting surface 431 be reflected onto the left side of this LED source 20, the light be incident on the second reflecting surface 432 is reflected onto the right side of this LED source 20.In other embodiment, the first reflecting surface 431 and the second reflecting surface 432 also can be cambered surface or other curved surface.
When LED source 20 is luminous, part light is from the first reflecting surface 431 or the second reflecting surface 432 of the light hole 34 directive diffuser plate 40 of optical element 30, and then be reflected onto the upper surface 11 of substrate 10, because upper surface 11 has the character of reflection ray, therefore this some light is reflected onto the incidence surface 41 of diffuser plate 40 again, finally to exiting surface 42 outgoing to extraneous.Another part light from the inside of the light hole 34 directive optical element 30 of optical element 30, and then is refracted out optical element 30, and be incident to diffuser plate 40 incidence surface 41 and final by exiting surface 42 outgoing to extraneous.
So, make the light intensity decreasing directly over LED source 20, the light intensity of peripheral region increases, thus the light intensity in the balance each region of LED light source module 1, make the emitting brightness of LED light source module 1 more even.
Technology contents of the present invention and technical characterstic disclose as above, but those skilled in the art still may make all replacement and the modification that do not deviate from spirit of the present invention based on teaching of the present invention and announcement.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modification, and is contained by appended claim.
Claims (7)
1. a LED light source module, comprise substrate, be arranged at the LED source on this substrate, the diffuser plate being arranged at the optical element on the forward light direction of this LED source and being arranged at above this optical element, it is characterized in that: the upper surface of this substrate is the reflecting surface of reflection ray, this optical element is provided with to should the light hole of LED source, this diffuser plate is just provided with towards the reflector of this light hole to the light hole place of this optical element, and this reflector has just to the reflecting surface of this light hole, the upper surface of this substrate is reflected onto time on the beam projecting that LED source sends to the reflecting surface of this reflector, diffuser plate is reflexed to again by the upper surface of this substrate.
2. LED light source module as claimed in claim 1, is characterized in that: the size of this light hole is large compared with the size of this LED source.
3. LED light source module as claimed in claim 1, is characterized in that: the size of the reflecting surface of this reflector is large compared with the internal diameter of this light hole.
4. LED light source module as claimed in claim 1, is characterized in that: the longitudinal cross-section of this reflector is triangle, and the reflecting surface on this reflector includes the first reflecting surface and the second reflecting surface.
5. LED light source module as claimed in claim 4, is characterized in that: this first reflecting surface and the second reflecting surface are plane.
6. LED light source module as claimed in claim 4, is characterized in that: this first reflecting surface and the second reflecting surface are curved surface.
7. LED light source module as claimed in claim 1, it is characterized in that: this optical element has a relative end face and a bottom surface, this end face is towards this diffuser plate, and this bottom surface is just to this LED source, and this light hole runs through the end face of this optical element and the middle part of bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467465.3A CN104565879A (en) | 2013-10-10 | 2013-10-10 | LED light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467465.3A CN104565879A (en) | 2013-10-10 | 2013-10-10 | LED light source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565879A true CN104565879A (en) | 2015-04-29 |
Family
ID=53082600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310467465.3A Pending CN104565879A (en) | 2013-10-10 | 2013-10-10 | LED light source module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565879A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0945673A1 (en) * | 1998-03-27 | 1999-09-29 | Citizen Electronics Co., Ltd. | Linear light source unit |
| CN201078582Y (en) * | 2007-04-29 | 2008-06-25 | 王正国 | Light source reflection structure of illuminate warning device |
| CN101275719A (en) * | 2007-03-27 | 2008-10-01 | 鸿富锦精密工业（深圳）有限公司 | LED lighting device |
| CN201237165Y (en) * | 2008-08-08 | 2009-05-13 | 陈敬新 | Lens type reflecting cup |
| CN201277457Y (en) * | 2008-08-26 | 2009-07-22 | 高雪钟 | Reflecting element of illumination unit |
| CN101644415A (en) * | 2008-08-09 | 2010-02-10 | 清华大学 | Light guide plate and backlight module |
| CN102062350A (en) * | 2010-11-18 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Light distribution device of LED (light-emitting diode) light source |
| CN202452202U (en) * | 2012-01-20 | 2012-09-26 | 讯凯国际股份有限公司 | Light-emitting device and lampshade thereof |
-
2013
- 2013-10-10 CN CN201310467465.3A patent/CN104565879A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0945673A1 (en) * | 1998-03-27 | 1999-09-29 | Citizen Electronics Co., Ltd. | Linear light source unit |
| CN101275719A (en) * | 2007-03-27 | 2008-10-01 | 鸿富锦精密工业（深圳）有限公司 | LED lighting device |
| CN201078582Y (en) * | 2007-04-29 | 2008-06-25 | 王正国 | Light source reflection structure of illuminate warning device |
| CN201237165Y (en) * | 2008-08-08 | 2009-05-13 | 陈敬新 | Lens type reflecting cup |
| CN101644415A (en) * | 2008-08-09 | 2010-02-10 | 清华大学 | Light guide plate and backlight module |
| CN201277457Y (en) * | 2008-08-26 | 2009-07-22 | 高雪钟 | Reflecting element of illumination unit |
| CN102062350A (en) * | 2010-11-18 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Light distribution device of LED (light-emitting diode) light source |
| CN202452202U (en) * | 2012-01-20 | 2012-09-26 | 讯凯国际股份有限公司 | Light-emitting device and lampshade thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |