CN108445566A - A kind of optical integration prism and light integrator device - Google Patents
A kind of optical integration prism and light integrator device Download PDFInfo
- Publication number
- CN108445566A CN108445566A CN201810492555.0A CN201810492555A CN108445566A CN 108445566 A CN108445566 A CN 108445566A CN 201810492555 A CN201810492555 A CN 201810492555A CN 108445566 A CN108445566 A CN 108445566A
- Authority
- CN
- China
- Prior art keywords
- optical integration
- plane
- prism
- exit facet
- incidence
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/04—Catoptric systems, e.g. image erecting and reversing system using prisms only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
Abstract
The invention discloses a kind of optical integration prisms, prism ontology includes the plane of incidence being oppositely arranged and exit facet and the fully reflecting surface between the plane of incidence and exit facet, the plane of incidence is set to the bottom end of prism ontology, and exit facet is set to the top of prism ontology, and fully reflecting surface is set to the side of prism ontology；The profile of the plane of incidence and exit facet is in polygon, fully reflecting surface includes several fully-reflected plane units, fully-reflected plane unit includes planar delta unit triangular in shape, one vertex of planar delta unit is the vertex of exit facet, and the another two vertex of planar delta unit is the vertex of the plane of incidence；The invention also discloses a kind of light integrator devices, it includes optical integration prism group, is set in the holder of optical integration prism group periphery and the bracket base for placing optical integration prism group and holder, and bracket base is provided with optical integration face with the opposite face of optical integration prism group；Optical integration prism group includes several optical integration prism splicing；It can realize better light mixing effect and realize the smaller light of shooting angle.
Description
Technical field
The present invention relates to a kind of optical integration prism and a kind of light integrator devices.
Background technology
Currently, traditional light integrator institute is generally provided with light integrator using Optical devices, light source is by entering
The face of penetrating is refracted into inside light integrator, and so that light is reflected from exit facet by multiple total reflection and be emitted.And traditional light
Integrator is learned to have the following disadvantages：1, traditional light integrator is mostly cylindrical or rectangular output face, and traditional optical is caused to accumulate
It is mostly irregular abnormity to divide the combination of device, causes outgoing efficiency not high；And it cannot splicing the shape combined when use
A complete shape is formed, causes exit facet utilization rate relatively low；2, the light integrator of the prior art is set due to light-emitting angle
Meter is limited, can not accomplish sufficiently small angle；3, after existing light integrator lower planes connection, 4 reflectings surface are commonly,
The mixing number of light is less, cannot achieve the uniform mixed light to light source.
Invention content
The object of the present invention is to provide a kind of optical integration prism and light integrator devices, can realize better mixed light
Effect and the realization smaller light of shooting angle.
To achieve the above object, a kind of optical integration prism provided by the present invention comprising prism ontology, the prism
Ontology includes the plane of incidence being oppositely arranged and exit facet and the fully reflecting surface between the plane of incidence and exit facet, described
The plane of incidence is set to the bottom end of the prism ontology, and the exit facet is set to the top of the prism ontology, and the fully reflecting surface is set
In the side of the prism ontology；The profile of the plane of incidence and exit facet is in polygon, and the fully reflecting surface includes several
Fully-reflected plane unit, the fully-reflected plane unit include planar delta unit triangular in shape, the planar delta unit
A vertex be the exit facet vertex, the another two vertex of the planar delta unit is the vertex of the plane of incidence.
In above-mentioned optical integration prism, the fully-reflected plane unit further includes the inverted triangle plane list in up-side down triangle
Member, a vertex of the inverted triangle flat unit are the vertex of the plane of incidence, the another two of the inverted triangle flat unit
Vertex is the vertex of the exit facet.
In above-mentioned optical integration prism, the fully-reflected plane unit further includes the quadrangle flat unit in quadrangle, institute
Two vertex for stating quadrangle flat unit are the vertex of the plane of incidence, and the another two vertex of the quadrangle flat unit is described
The vertex of exit facet.
In above-mentioned optical integration prism, the profile parallelogram of the exit facet.
In above-mentioned optical integration prism, the profile of the exit facet is hexagonal or triangle.
In above-mentioned optical integration prism, the quantity of the fully-reflected plane unit is at least six.
In above-mentioned optical integration prism, the area ratio of the exit facet and the plane of incidence is more than 1.6.
In above-mentioned optical integration prism, the exit facet and the plane of incidence are flat unit, the exit facet with it is described
The plane of incidence is mutually parallel, and the distance between the plane of incidence and the exit facet are the length of the longest edge of the plane of incidence
10-15 times.
A kind of light integrator device provided by the present invention comprising optical integration prism is set in the optics product
Divide the holder of prism periphery and positioned at the plane of incidence side of the optical integration prism for placing the optical integration rib
The bracket base of mirror and the holder, the bracket base are provided with optical integration with the opposite face of the optical integration prism
Face；The optical integration prism includes the optical integration prism splicing described in several, several optical integration prisms
The close split of exit facet forms the exit facet of the optical integration prism；The material in the optical integration face is optical integration material
Material.
In above-mentioned light integrator device, the profile of the exit facet of the optical integration prism is in regular hexagon.
A kind of optical integration prism and a kind of light integrator device that above-mentioned technical proposal is provided, with the prior art
It compares, advantageous effects include：1, by the way that at least six reflectings surface are arranged, increase the light of light source in optical integration prism
Internal total reflection number improves light mixing effect of the optical integration prism to light source incidence light；Since general LED light emitting sources are
The plane of incidence of rectangle is arranged in rectangle, and more light is enable to be incident to optical integration prism；And the outgoing by the way that polygon is arranged
Face is capable of the splicing of better implementation rule when multiple optical integration prisms splice and coordinate, increases the utilization rate of exit facet；It is logical
The vertex for crossing vertex two exit facets adjacent with the vertex both sides of the plane of incidence is combined into three vertex of positive triangle side, with
And three tops of inverted triangle side are combined by the vertex of exit facet and the vertex of two adjacent two planes of incidence in the vertex
Point realizes more sides setting of optical integration prism, increases the total reflection number of incident light, improve the uniformity of light outgoing.2、
It is spliced into optical integration prism group by multiple optical integration prisms, keeps the plane of incidence of single optical integration prism corresponding each respectively
A LED chip, and by the way that the exit facet of several optical integration prisms is spliced into an entirety, utilize to greatest extent each
Exit facet makes the light of the emergent ray of light integrator device mix more uniform；And make light integrator device big
Under the arrangement form of power combination, minimum lighting area is realized.
Description of the drawings
Fig. 1 is one of the elevational schematic view of the optical integration prism of the present invention；
Fig. 2 is the two of the elevational schematic view of the optical integration prism of the present invention；
Fig. 3 is the three of the elevational schematic view of the optical integration prism of the present invention；
Fig. 4 is the four of the elevational schematic view of the optical integration prism of the present invention；
Fig. 5 is one of the structural schematic diagram of the optical integration prism of the present invention；
Fig. 6 is the second structural representation of the optical integration prism of the present invention；
Fig. 7 is the third structural representation of the optical integration prism of the present invention；
Fig. 8 is the four of the structural schematic diagram of the optical integration prism of the present invention；
Fig. 9 is the structural schematic diagram of the light integrator device of the present invention；
Figure 10 is one of the structural schematic diagram of the optical integration prism group exit facet of the present invention；
Figure 11 is the second structural representation of the optical integration prism group exit facet of the present invention；
Figure 12 is the third structural representation of the optical integration prism group exit facet of the present invention；
Figure 13 is the four of the structural schematic diagram of the optical integration prism group exit facet of the present invention；
Figure 14 is the five of the structural schematic diagram of the optical integration prism group exit facet of the present invention；
Figure 15 is the six of the structural schematic diagram of the optical integration prism group exit facet of the present invention；
Figure 16 is the seven of the structural schematic diagram of the optical integration prism group exit facet of the present invention.
Wherein, the 1- planes of incidence, 2- exit facets, 3- planar delta units, 4- inverted triangle flat units, tetra- angle plane lists of 5-
Member, 6-LED chips, 7- bracket bases, 8- optical integration prism groups, 9- holders.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
Please refer to attached drawing 1-2, a kind of optical integration prism provided by the present invention comprising prism ontology, the prism
Ontology includes the plane of incidence 1 being oppositely arranged and exit facet 2 and the fully reflecting surface between the plane of incidence 1 and exit facet 2,
The plane of incidence 1 is set to the bottom end of the prism ontology, and the exit facet 2 is set to the top of the prism ontology, described to be all-trans
Penetrate the side that face is set to the prism ontology；The profile of the plane of incidence 1 and exit facet 2 is in polygon, the total reflection bread
Include several fully-reflected plane units, the fully-reflected plane unit includes planar delta unit 3 triangular in shape, the triangle
One vertex of flat unit 3 is the vertex of the exit facet 2, and the another two vertex of the planar delta unit 3 enters for described in
Penetrate the vertex in face 1.
Based on above-mentioned technical characteristic, light is incident to the prism ontology by the plane of incidence 1, in the fully reflecting surface
It is totally reflected, and is emitted to the exit facet 2；By setting in the plane of incidence 1 of polygon, make the plane of incidence 1 can
Setting of different shapes is carried out according to the different shape of light source, light as much as possible is enable to be incident to the optical integration rib
Mirror, and provided with the exit facet 2 in polygon, when multiple optical integration prisms being made to be spliced and combined, Duo Gesuo
A complete exit facet can be spliced by stating exit facet 2, increase the utilization rate of the exit facet 2；And by setting in triangle
The planar delta unit 3 of shape increases order of reflection of the light in the fully reflecting surface, improves uniformity when beam projecting.
In the present embodiment, the plane of incidence 1 is rectangle, enables the most of rectangular light source chip of the cooperation of the plane of incidence 1.
The fully-reflected plane unit further includes the inverted triangle flat unit 4 in up-side down triangle, the inverted triangle plane list
One vertex of member 4 is the vertex of the plane of incidence 1, and the another two vertex of the inverted triangle flat unit 4 is the exit facet 2
Vertex；By the way that the inverted triangle flat unit 4 is arranged, coordinates with the planar delta unit 3, be combined into multi-sided
The prism ontology increases light in the refraction number of the prism body interior, improves mixed light degree and the outgoing of light
Uniformity.
The fully-reflected plane unit further includes the quadrangle flat unit 5 in quadrangle, and the two of the quadrangle flat unit 5
A vertex is the vertex of the plane of incidence 1, and the another two vertex of the quadrangle flat unit 5 is the vertex of the exit facet 2；It is logical
It crosses and the quadrangle flat unit 5 is set, coordinate the inverted triangle flat unit 4 and the planar delta unit 3, be combined into more
The optical integration prism of side, improves the light mixing effect of the optical integration prism.
The profile parallelogram of the exit facet 2 makes the periphery of the prism ontology by the planar delta unit 3
And inverted triangle flat unit 4 sequentially surrounds composition, increases the total reflection number of light；It is wherein preferred, parallel four side
Shape is diamond shape or rectangle, preferably realizes the splicing assembly of multiple optical integration prisms, improves the use of the exit facet 2
Rate.
The profile of the exit facet 2 is hexagonal or triangle；Make the periphery of the prism ontology by quadrangle flat unit
5, the planar delta unit 3 and inverted triangle flat unit 4 form, and increase institute when total reflection number and the splicing of light
The systematicness of exit facet 2 is stated, preferably.The hexagon is regular hexagon, and the triangle is equilateral triangle.
The quantity of the fully-reflected plane unit is at least six；Preferably make incident ray in the prism ontology into
Row total reflection, realizes the better light mixing effect of emergent ray.
The area ratio of the exit facet 2 and the plane of incidence 1 is more than 1.6, and the exit facet is plane with the plane of incidence
Unit, the exit facet 2 are mutually parallel with the plane of incidence 1, and the distance between the plane of incidence and the exit facet are described
10-15 times of the length of the longest edge of the plane of incidence；By actual conditions select suitable area the plane of incidence 1 and it is described go out
It penetrates face 2 and selects the length of the corresponding optical integration prism according to the length computation of the longest length of side of the plane of incidence,
Total reflection no less than three times can be carried out in the optical integration prism by ensuring light, the light mixing effect realized and be subtracted
The light source shooting angle of the small optical integration prism.Wherein, due to the plane of incidence, the exit facet of the optical integration prism
And reflecting surface is flat unit, is conducive to the cold working of production.
Wherein, different from 1 inflection point of the plane of incidence by being arranged to the exit facet 2 refering to attached drawing 1 or 2
Rectangle or diamond shape make each vertex of the rectangular plane of incidence 1 can be with the exit facet 2 on adjacent vertical direction
Two vertex connect to form an independent fully reflecting surface, and by the connection between face and face, generating has eight
The prism ontology of fully reflecting surface, the fully reflecting surface include the planar delta unit and the inverted triangle plane list
Member.Preferably, rectangular or diamond shape the exit facet 2 is overlapped with rectangular 1 diagonal line of the plane of incidence.
Make the rectangular plane of incidence 1 each by the way that the exit facet 2 is arranged to hexagon refering to attached drawing 3
Vertex can connect to form an independent total reflection with two vertex of the exit facet 2 on adjacent vertical direction
Face, and by the connection between face and face, the prism ontology with eight fully reflecting surfaces is generated, the fully reflecting surface includes
The planar delta unit, the inverted triangle flat unit and quadrangle flat unit.
Make the two of the rectangular plane of incidence 1 by the way that the exit facet 2 is arranged to equilateral triangle refering to attached drawing 4
A adjacent a vertex can be connect with two vertex of the exit facet 2 on adjacent vertical direction to be formed one it is independent described complete
Reflecting surface, other two adjacent vertex of the plane of incidence 1 with it is described be that vertically opposite two vertex of exit facet 2 form one solely
Vertical fully reflecting surface, and by the connection between face and face, generating tool, there are six the prism ontologies of fully reflecting surface, described complete
Reflecting surface includes the planar delta unit, the inverted triangle flat unit and quadrangle flat unit.
Refering to attached drawing 9, the present invention also provides a kind of light integrator devices comprising optical integration prism group 8 is set in
The holder 9 of 8 periphery of optical integration prism group and positioned at the plane of incidence side of the optical integration prism group 8 for putting
Set the bracket base 7 of the optical integration prism group 8 and the holder 9, the bracket base 7 with the optical integration prism
The opposite face of group 8 is provided with optical integration face；The optical integration prism group 8 includes that the optical integration prism described in several is spelled
It connects, the close split of exit facet of several optical integration prisms forms the exit facet of the optical integration prism group 8；It is described
The material in optical integration face is optical material；The optical integration prism group 8 is by optical integration prism splicing group described in several
It closes；It is spliced into the optical integration prism group 8 by multiple optical integration prisms, makes the single optical integration rib
The plane of incidence 1 of mirror corresponds to each LED chip 6 respectively, and incident light enters the optical integration prism group 8 by the incidence surface
The plane of incidence；By the way that the exit facet of several optical integration prisms is spliced into an entirety, utilize to greatest extent each
The exit facet 2 makes the light of the emergent ray of the light integrator device mix more uniform；And make the optics product
Divide device device under the arrangement form of high power combination, realizes minimum lighting area.
The exit facet of the optical integration prism group 8 is regular hexagon, by being in equilateral three by several described exit facets 2
The optical integration prism that the angular optical integration prism and/or several described exit facets 2 assumes diamond in shape is spliced into out
The optical integration prism group 8 that face is in regular hexagon is penetrated, the exit facet of the optical integration prism group 8 can be preferably improved
Utilization rate；Wherein, 8 exit facet of optical integration prism group splicing is not limited only to regular hexagon, can be by refering to attached drawing 10-16
The optical integration prism several different is spliced into other geometric figures.
In the present embodiment, the material of the optical integration prism is optical glass or silica gel or PMMA, PC or quartz, can root
Different materials is taken to make the optical integration prism according to the demand of different scenes.
It the above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvement and replacement can also be made, these improve and replace and also answer
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of optical integration prism, which is characterized in that it includes prism ontology, and the prism ontology includes entering of being oppositely arranged
Face and exit facet and the fully reflecting surface between the plane of incidence and exit facet are penetrated, the plane of incidence is set to the prism sheet
The bottom end of body, the exit facet are set to the top of the prism ontology, and the fully reflecting surface is set to the side of the prism ontology；
The profile of the plane of incidence and exit facet is in polygon, and the fully reflecting surface includes several fully-reflected plane units, institute
The planar delta unit that fully-reflected plane unit includes triangular in shape is stated, a vertex of the planar delta unit goes out for described in
The vertex in face is penetrated, the another two vertex of the planar delta unit is the vertex of the plane of incidence.
2. optical integration prism as described in claim 1, which is characterized in that the fully-reflected plane unit further includes in three
Angular inverted triangle flat unit, a vertex of the inverted triangle flat unit are the vertex of the plane of incidence, it is described fall three
The another two vertex of angle plane unit is the vertex of the exit facet.
3. optical integration prism as claimed in claim 2, which is characterized in that the fully-reflected plane unit further includes in four sides
The quadrangle flat unit of shape, two vertex of the quadrangle flat unit are the vertex of the plane of incidence, the four angle planes list
The another two vertex of member is the vertex of the exit facet.
4. optical integration prism as claimed in claim 2, which is characterized in that the profile parallelogram of the exit facet.
5. optical integration prism as claimed in claim 3, which is characterized in that the profile of the exit facet is hexagonal or triangle
Shape.
6. optical integration prism as described in any one in claim 1-5, which is characterized in that the number of the fully-reflected plane unit
Amount is at least six.
7. optical integration prism as described in any one in claim 1-5, which is characterized in that the exit facet and the plane of incidence
Area ratio be more than 1.6.
8. optical integration prism as claimed in claim 7, which is characterized in that the exit facet is plane list with the plane of incidence
Member, the exit facet are mutually parallel with the plane of incidence, and the distance between the plane of incidence and the exit facet are the incidence
10-15 times of the length of the longest edge in face.
9. a kind of light integrator device, which is characterized in that it includes optical integration prism group, is set in the optical integration rib
The holder of microscope group periphery and positioned at the plane of incidence side of the optical integration prism group for placing the optical integration rib
The bracket base of microscope group and the holder, the bracket base are provided with optics with the opposite face of the optical integration prism group
Integral face；The optical integration prism group includes several as claim 1-8 any one of them optical integration prisms splice,
The close split of exit facet of several optical integration prisms forms the exit facet of the optical integration prism group；The optics
The material in integral face is optical material.
10. light integrator device as claimed in claim 9, which is characterized in that the exit facet of the optical integration prism group
Profile be in regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810492555.0A CN108445566A (en) | 2018-05-22 | 2018-05-22 | A kind of optical integration prism and light integrator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810492555.0A CN108445566A (en) | 2018-05-22 | 2018-05-22 | A kind of optical integration prism and light integrator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108445566A true CN108445566A (en) | 2018-08-24 |
Family
ID=63205229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810492555.0A Pending CN108445566A (en) | 2018-05-22 | 2018-05-22 | A kind of optical integration prism and light integrator device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108445566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032755A (en) * | 2022-08-10 | 2022-09-09 | 徐州市广科新技术发展有限公司 | Optical integrator support and optical instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050046807A1 (en) * | 2003-08-25 | 2005-03-03 | Olympus Corporation | Optical device, Illumination apparatus using the device, and projector using the illumination apparatus |
| US20100091250A1 (en) * | 2008-10-15 | 2010-04-15 | Delta Electronics, Inc. | Light uniform device and dlp projection system comprising the same |
| CN105179962A (en) * | 2015-08-10 | 2015-12-23 | 广州市多普光电科技有限公司 | Columnar polyhedral matrix LED light source |
| CN208283588U (en) * | 2018-05-22 | 2018-12-25 | 广州市焦汇光电科技有限公司 | A kind of optical integration prism and light integrator device |
-
2018
- 2018-05-22 CN CN201810492555.0A patent/CN108445566A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050046807A1 (en) * | 2003-08-25 | 2005-03-03 | Olympus Corporation | Optical device, Illumination apparatus using the device, and projector using the illumination apparatus |
| US20100091250A1 (en) * | 2008-10-15 | 2010-04-15 | Delta Electronics, Inc. | Light uniform device and dlp projection system comprising the same |
| CN105179962A (en) * | 2015-08-10 | 2015-12-23 | 广州市多普光电科技有限公司 | Columnar polyhedral matrix LED light source |
| CN208283588U (en) * | 2018-05-22 | 2018-12-25 | 广州市焦汇光电科技有限公司 | A kind of optical integration prism and light integrator device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032755A (en) * | 2022-08-10 | 2022-09-09 | 徐州市广科新技术发展有限公司 | Optical integrator support and optical instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8449150B2 (en) | Tir lens for light emitting diodes | |
| CN103163576B (en) | Light-emitting diode lens and light-emitting device thereof | |
| CN103062707B (en) | Light-emitting diode lens and light source device thereof | |
| US8960960B2 (en) | Illumination beam shaping system | |
| CN101228391A (en) | Etendue-conserving illumination-optics device for backlights and frontlights | |
| TW201344307A (en) | Light guide plate and backlight module using the same | |
| US20090213585A1 (en) | Light emitting diode display device | |
| CN206479663U (en) | Backlight module and display device | |
| CN104819433B (en) | Ellipse light spot realization device, light spot adjusting device and operating lamp | |
| CN101025518A (en) | Optical sheet | |
| CN101886763A (en) | LED area light source device | |
| CN208283588U (en) | A kind of optical integration prism and light integrator device | |
| CN108445566A (en) | A kind of optical integration prism and light integrator device | |
| CN103994396A (en) | LED secondary refraction and reflection lens for direct lighting type backlight source | |
| CN102027397A (en) | A directional light source using refractive and reflective optics | |
| US20060087838A1 (en) | Light diffusion bar | |
| CN104075237A (en) | Optical system and illuminating device with same | |
| CN102705723A (en) | Surface light source device | |
| CN104090423A (en) | Transparent display device | |
| CN204328880U (en) | A kind of Novel flower flap wide-angle luminous lens | |
| CN110966525B (en) | Lens and light-emitting device | |
| CN201680205U (en) | Light source for generating dot array light | |
| CN204005733U (en) | Bis-refraction-reflection lens of LED for downward back radiant | |
| CN103868015B (en) | A kind of scute Polyhedral LED lamp optical mask | |
| CN202581126U (en) | Led light source module and lens thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |