CN202338860U - Optical lens of LED (light-emitting diode) lamp - Google Patents
Optical lens of LED (light-emitting diode) lamp Download PDFInfo
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- CN202338860U CN202338860U CN2011204613548U CN201120461354U CN202338860U CN 202338860 U CN202338860 U CN 202338860U CN 2011204613548 U CN2011204613548 U CN 2011204613548U CN 201120461354 U CN201120461354 U CN 201120461354U CN 202338860 U CN202338860 U CN 202338860U
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- led light
- optical lens
- light fixture
- circular cone
- accommodation chamber
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Abstract
The utility model discloses an optical lens of an LED (light-emitting diode) lamp, which comprises an inverted conical lens body. The inverted conical lens body is arranged in a fixed seat and is then combined with an LED light-emitting source to form the illuminating lamp. The lens body comprises a planar part and a projection cone, wherein the planar part is arranged on the top part of the lens body, and the center of the planar part is provided with a round slot; and the projection cone is arranged at the bottom of the lens body, the center of the projection cone is provided with an accommodating chamber used for accommodating the LED light-emitting source, the accommodating chamber is not communicated with the round slot, and an external curved surface of the projection cone consists of a plurality of curved surface points arranged concentrically. Therefore, the light-emitting angle, luminosity distribution and illuminance distribution of the LED light-emitting source can be adjusted, and the illumination can be more centralized and uniform; and shrinkage in plastic formation can be reduced due to the round slot, and the product quality can be improved.
Description
Technical field
The utility model belongs to the field of lighting, particularly is applied to show the optical lens structure with LED light fixture or indoor LED light fixture about a kind of.。
Background technology
(Light Emitting Diode LED) because of having than low power consumption, high-effect, advantage such as the life-span is grown, and is widely used in the light emitting source (following and abbreviate as LED light emitting source) of illumination to general light emitting diode.In recent years, the LED light emitting source also is widely used in like the backlight module of display, and lighting fields such as indicator lamp light source or general illumination equipment because the LED light emitting source has remarkable especially energy saving advantage, have also improved practicality relatively.Moreover; When the LED lighting apparatus of application of LEDs light emitting source and traditional lighting light fixture compared under the service condition with brightness, the power consumption of LED was merely 1/10 of ordinary incandescent lamp, was 1/2 of electricity-saving lamp; And also significantly extend to use more than 10,000 hours the service life of LED.
Because the divergence of beam angle of LED light emitting source is less; When being applied to the LED lighting apparatus; And use the optical lens collocation LED light emitting source of various different structure designs, in order to lighting angle, photometric distribution and the Illumination Distribution of adjustment LED, light can be concentrated and effectively improve light intensity.But, as use poorly designed optical lens, then cause the brightness of ZhaoMing Center too concentrated easily, and the problem of brightness irregularities is arranged.Therefore, the secondary optics of utilization principle is also arranged and change the optical lens of LED light emitting source projection effect, the phase can provide the illumination condition of the best under different service conditions, and the illumination zone of audience or user's the most comfortable can be provided.
Therefore, how effectively to projection illumination, the lighting angle of this LED lighting apparatus, with and the illumination uniformity improve, be the be correlated with problem of practitioner's utmost point desire improvement of this area.Yet; The optical lens of the various LED of being used in lighting apparatus system processes through ejection formation with thermosetting plastics at present; This kind thermosetting plastics is when in-mold molding; Because of shrink phenomenon when plastic cool, cause this optical lens on dimensional accuracy error and influence its surface curvature, for projection illumination, lighting angle and the illumination uniformity of this LED lighting apparatus great influence is arranged all.
So the inventor is for further being provided with a circular groove on the optical lens of a LED light fixture, and the shrink phenomenon of the structure of utilizing this circular groove to form to steal material during with the minimizing plastic shaping, and then significantly promote end product quality.Moreover; This optical lens also is provided with a projection circular cone; And curved surface system is made up of a plurality of surface points that concentric circles is provided with outside this projection circular cone; Be able to change and adjust lighting angle, photometric distribution and the Illumination Distribution of a LED, it is concentrated more and even that its irradiate light is distributed, and also can meet the environmental requirement of energy-saving and carbon-saving so that more comfortable lighting environment to be provided.
Summary of the invention
The utility model purpose is to provide a kind of optical lens that the LED light fixture of a circular groove is set on the one hand on a plane, according to and shrink phenomenon when reducing plastic shaping, in order to improve the quality of finished product.
Moreover; Another purpose of the utility model is to provide a kind of optical lens of lighting, and it utilizes the set projection circular cone in bottom surface, and combines the secondary optics principle; To change and to adjust lighting angle, photometric distribution and the Illumination Distribution of a LED light emitting source; In order to do making the irradiate light of this LED light emitting source distribute to concentrate more and evenly, so that the user to be provided more comfortable lighting environment, and can meet the environmental requirement of energy-saving and carbon-saving
For achieving the above object; The optical lens of the LED light fixture of the utility model; It has one of inverted cone-shaped lens body and is mounted in the holder, combines with a LED light emitting source to form a lighting again, and this lens body comprises: a planar portions; Be located at the top of this lens body, and the home position cording of this planar portions there is a circular groove; One throws circular cone, is located at the bottom of this lens body, and the center cording of this projection circular cone has an accommodation chamber to place this LED light emitting source; This accommodation chamber and this circular groove are not connected; And curved surface system is made up of a plurality of surface points that concentric circles is provided with outside should projection circular cone, and wherein, heart line forms a datum level among the straight line on the opening surface in the opening center of circle through this accommodation chamber and this lens body; And this straight line is an X axle; This center line is a Y axle, and d is that a unit coordinate is long, and this X axle and this Y axle intersection are the origin of coordinates; These surface points to this X, Y wheelbase from being more than or equal to zero and having a relative error p respectively, and-d/20≤p≤d/20; And a latch closure portion, the position of being located at contiguous this planar portions of this projection circular cone is to be fixedly arranged in this holder.
To sum up, the utility model provides following several embodiment, and makes this projection circular cone have curved surface outside the difference.In first embodiment, these surface points have each point (3.78,0), (5.02,1.61), (6.16,3.19), (7.00,4.43), (7.88,5.79), (8.67,7.10) and (9.53,8.61) on the X-Y coordinate plane.Wherein, the long d of this unit coordinate is 1mm, and this relative error p is-0.05mm≤p≤0.05mm.Moreover, have more a convex lens structures in the bottom surface of this accommodation chamber, in order to increase the angle of light refraction.And periphery has more a ring barricade towards the direction of this projection circular cone outside this latch closure portion, so that button is established is fixed in this holder.In addition, have more a rounding structure in this accommodation chamber and this projection circular cone junction, and can change the ray refraction angle.
In second embodiment, these surface points have each point (3.78,0), (5.09,1.50), (6.30,3.07), (7.27,4.49), (8.07,5.79), (8.78,7.07) and (9.53,8.61) on the X-Y coordinate plane.Wherein, the long d of this unit coordinate is 1mm, and this relative error p is-0.05mm≤p≤0.05mm.Moreover; On this planar portions, have more one first refraction structure; And the bottom surface of this circular groove has more one second refraction structure; This first refraction structure and this second refraction structure are arranged side by side by a plurality of hexagon refraction particles and form, and can change the light refraction angle, and it is concentrated more and even that irradiate light is distributed.Identical with first embodiment, have more a convex lens structures in the bottom surface of this accommodation chamber, equally can be in order to increase the angle of light refraction.And periphery has more a ring barricade towards the direction of this projection circular cone outside this latch closure portion, so that button is established is fixed in this holder.
In the 3rd embodiment, these surface points have each point (3.78,0), (4.52,0.95), (5.40,2.12), (6.33,3.42), (7.27,4.83), (8.11,6.16) and (8.98,7.62) on the X-Y coordinate plane.Wherein, the long d of this unit coordinate is 1mm, and this relative error p is-0.05mm≤p≤0.05mm.This planar portions has more one first refraction structure; And the bottom surface of this circular groove has more one second refraction structure; This first refraction structure and this second refraction structure are arranged side by side by a plurality of hexagon refraction particles and form; Can change the light refraction angle, it is concentrated more and even that irradiate light is distributed.Identical with first and second embodiment, have more a convex lens structures in the bottom surface of this accommodation chamber.And periphery has more a ring barricade towards the direction of this projection circular cone outside this latch closure portion, so that button is established is fixed in this holder.In addition, have more a rounding structure in this accommodation chamber and this projection circular cone junction, and can change the ray refraction angle.
The effect of the utility model is to utilize this circular groove of this optical lens; Reduce quantity of plastics as the structure of stealing material; Because this circular groove system is arranged at the home position of this planar portions; And the shrink phenomenon when making plastic shaping more evenly and reduce the probability that occurs, and then significantly promote end product quality.Moreover the positive camber angle design of this projection circular cone also can be with this LED light emitting source that is arranged in this accommodation chamber; Make light system this optical lens of process of this LED light emitting source and the principle that air dielectric carries out repeatedly light refraction; And change and adjust lighting angle, photometric distribution and the Illumination Distribution of former LED light emitting source, its light is concentrated and evenly more, to produce comfortable lighting environment; So can be applicable to and show or lighting use such as indoor, and can meet the environmental requirement of energy-saving and carbon-saving.
Description of drawings
Fig. 1 is the stereo appearance figure of the utility model first embodiment.
Fig. 2, for the utility model first embodiment in the cutaway view of X-Y plane.
Fig. 3 is for the utility model first embodiment carries the ray tracing sketch map that the LED light emitting source uses.
Fig. 4 is for the utility model first embodiment carries the equiluminous sketch map that the LED light emitting source uses.
Fig. 5 is for the utility model first embodiment carries the distribution curve flux sketch map that the LED light emitting source uses.
Fig. 6 is the stereo appearance figure of the utility model second embodiment.
Fig. 7, for the utility model second embodiment in the cutaway view of X-Y plane.
Fig. 8 is for the utility model second embodiment carries the ray tracing sketch map that the LED light emitting source uses.
Fig. 9 is for the utility model second embodiment carries the equiluminous sketch map that the LED light emitting source uses.
Figure 10 is for the utility model second embodiment carries the distribution curve flux sketch map that the LED light emitting source uses.
Figure 11 is the stereo appearance figure of the utility model the 3rd embodiment.
Figure 12, for the utility model the 3rd embodiment in the cutaway view of X-Y plane.
Figure 13 is for the utility model the 3rd embodiment carries the ray tracing sketch map that the LED light emitting source uses.
Figure 14 is for the utility model the 3rd embodiment carries the equiluminous sketch map that the LED light emitting source uses.
Figure 15 is for the utility model the 3rd embodiment carries the distribution curve flux sketch map that the LED light emitting source uses.
The specific embodiment
See also Fig. 1,2,3,4,5,, and carry ray tracing sketch map, equiluminous sketch map and the distribution curve flux sketch map that the LED light emitting source uses for the stereo appearance figure of the utility model first embodiment, in the cutaway view of X-Y plane.Shown in figure; The optical lens 1 of the present invention's LED light fixture; It has one of inverted cone-shaped lens body and is mounted in the holder 2, combines with a LED light emitting source 3 to form a lighting again, and this lens body comprises: a planar portions 11; Be located at the top of this lens body, and the home position cording of this planar portions 11 there is a circular groove 111; One throws circular cone 12, is located at the bottom of this lens body, and the center cording of this projection circular cone 12 has an accommodation chamber 121 to place this LED light emitting source 3; This accommodation chamber 121 is not connected with this circular groove 111; And curved surface 122 is that 123 of a plurality of surface points that are provided with by concentric circles are formed outside this projection circular cone 12, and wherein, heart line forms a datum level among the straight line on the opening surface in the opening center of circle through this accommodation chamber 121 and this lens body; And this straight line is an X axle; This center line is a Y axle, and d is that a unit coordinate is long, and this X axle and this Y axle intersection are the origin of coordinates; These surface points to this X, Y wheelbase is from also having a relative error p respectively more than or equal to zero, and when the long d of this unit coordinate was 1mm, this relative error p was-0.05mm≤p≤0.05mm.Be with, this first embodiment utilizes geometry principle, constitutes line by point, line constitutes the basic concept of face; With these surface points 123 tabulars on this positive camber 122, these surface points 123 have each point coordinates (3.78 respectively on the X-Y coordinate plane; 0), (5.02,1.61), (6.16,3.19), (7.00; 4.43), (7.88,5.79), (8.67,7.10) and (9.53; 8.61), the therefore further curvature of this positive camber 122 of definition, and also will determine the level and smooth degree of this positive camber 122 by these given surface points 123 numbers.Because the mode of utilizing these surface points 123 to set up this positive camber 122 on the engineering has the multiple practice, does not detail in this.Mainly utilize the notion of smooth connection; Make it to be able to guarantee that
connects curve at given surface points 123 places; Make tangent line
continuous and curvature of curve
continuous, and then framework go out this positive camber 122 again.This lens body has more a latch closure portion 13, and the position of being located at these projection circular cone 12 contiguous these planar portions 11 is to be fixedly arranged in this holder 2.
Moreover, as shown in Figure 2, have more a convex lens structures 1211 in the bottom surface of this accommodation chamber 121, in order to increase the angle of light refraction.And periphery has more a ring barricade 131 towards the direction of this projection circular cone 12 outside this latch closure portion 13, so that button is established is fixed in this holder 2.In addition, have more a rounding structure 124 in this accommodation chamber 121 with these projection circular cone 12 junctions, and can change the ray refraction angle.
See also Fig. 6,7,8,9,10,, and carry ray tracing sketch map, equiluminous sketch map and the distribution curve flux sketch map that the LED light emitting source uses for the stereo appearance figure of second embodiment of the invention, in the cutaway view of X-Y plane.The optical lens 4 of this second embodiment is slightly different with first embodiment; But basic structure is identical, and it has a planar portions 41, equally and throws a circular cone 42 and a latch closure portion 43, and wherein the home position of this planar portions 41 has a circular groove 411; And the center of this projection circular cone 42 has an accommodation chamber 421; Heart line forms a datum level among a straight line on the opening surface in the opening center of circle through this accommodation chamber 421 and this lens body, and this straight line is an X axle, and this center line is a Y axle; D is that a unit coordinate is long, and this X axle and this Y axle intersection are the origin of coordinates.And should throw these surface points 423 tabulars on one of circular cone 42 positive camber 422, these surface points 423 have each point (3.78 on the X-Y coordinate plane; 0), (5.09,1.50), (6.30,3.07), (7.27; 4.49), (8.07,5.79), (8.78,7.07) and (9.53; 8.61), the long d of its unit coordinate is similarly 1mm.Moreover; On this planar portions 41, have more one first refraction structure 412; And the bottom surface of this circular groove 411 has more one second refraction structure 413; This first refraction structure 412 and this second refraction structure 413 are arranged side by side by a plurality of hexagon refraction particles and form, and can change the light refraction angle, and it is concentrated more and even that irradiate light is distributed.Identical with first embodiment, have more a convex lens structures 424 in the bottom surface of this accommodation chamber 421, equally can be in order to increase the angle of light refraction.And periphery has more a ring barricade 431 towards the direction of this projection circular cone 42 outside this latch closure portion 43.
See also Figure 11,12,13,14,15,, and carry ray tracing sketch map, equiluminous sketch map and the distribution curve flux sketch map that the LED light emitting source uses for the stereo appearance figure of the utility model the 3rd embodiment, in the cutaway view of X-Y plane.The optical lens 5 of the 3rd embodiment is slightly different with aforementioned two embodiment again, but basic structure is identical, and it has a planar portions 51, equally and throws a circular cone 52 and a latch closure portion 53; Wherein the home position of this planar portions 51 has a circular groove 511; And the center cording of this projection circular cone 52 has an accommodation chamber 521, and heart line forms a datum level among the straight line on the opening surface in the opening center of circle through this accommodation chamber 521 and this lens body, and this straight line is an X axle; This center line is a Y axle; D is that a unit coordinate is long, and the long d of this unit coordinate is 1mm, and this X axle and this Y axle intersection are the origin of coordinates.And should throw these surface points 523 tabulars on one of circular cone 52 positive camber 522, these surface points 523 have each point (3.78,0), (4.52 on the X-Y coordinate plane; 0.95), (5.40,2.12), (6.33,3.42), (7.27; 4.83), (8.11,6.16) and (8.98,7.62).Moreover; Have more one first refraction structure 512 in this planar portions 51; And the bottom surface of this circular groove 511 has more one second refraction structure 513; This first refraction structure 512 and this second refraction structure 513 are identical with second embodiment and be arranged side by side by a plurality of hexagons refraction particles and form, also can be in order to change the light refraction angle.Identical with first and second embodiment, have more a convex lens structures 524 in the bottom surface of this accommodation chamber 521.And periphery has more a ring barricade 531 towards the direction of this projection circular cone 52 outside this latch closure portion 53, in addition, has more a rounding structure 525 to change the ray refraction angle in this accommodation chamber 521 and these projection circular cone 52 junctions.
To sum up; This circular groove 111,411,511 that this optical lens 1,4,5 of the utility model is set; Not only can reduce the consumption of plastics and reduce manufacturing cost, and the shrink phenomenon can make plastic shaping the time more evenly and reduce and the probability of defective products occurs, and then can promote the quality of finished product.Moreover; Positive camber 122,422,522 angle design of this projection circular cone 12,42,52; Also can this LED light emitting source 3 that be arranged in this accommodation chamber 121,421,521 be made the light of this LED light emitting source 3 carry out repeatedly the principle of light refraction through this optical lens 1,4,5 and air dielectric, and change and adjust lighting angle, photometric distribution and the Illumination Distribution of former LED light emitting source 3; Make its light concentrated more and even; Producing comfortable lighting environment, thus can be applicable to and show or lighting use such as indoor, and can meet the environmental requirement of energy-saving and carbon-saving.
The person is merely the preferred embodiment of the utility model in sum, be not in order to limiting the scope of the present invention's enforcements, and other is like equal proportion amplification of selecting material, size for use of this lens body or the transition regime that dwindles, also all among the category of this case; So, have common knowledge the knowledgeable in technical field under this, or be familiar with this technology and done equivalence or variation person easily, in following equalization variation and the modification of being done of spirit that does not break away from the utility model and scope, all should be covered by in the present invention's the claim.
Claims (14)
1. the optical lens of a LED light fixture, it has one of inverted cone-shaped lens body and is mounted in the holder, combines with a LED light emitting source to form a lighting again, and this lens body system comprises:
One planar portions be located at the top of this lens body, and the home position cording of this planar portions has a circular groove;
One throws circular cone, is located at the bottom of this lens body, and the center cording of this projection circular cone has an accommodation chamber to place this LED light emitting source; This accommodation chamber and this circular groove are not connected; And curved surface system is made up of a plurality of surface points that concentric circles is provided with outside should projection circular cone, and wherein, heart line forms a datum level among the straight line on the opening surface in the opening center of circle through this accommodation chamber and this lens body; And this straight line is an X axle; This center line is a Y axle, and d is that a unit coordinate is long, and this X axle and this Y axle intersection are the origin of coordinates; These surface points to this X, Y wheelbase from being more than or equal to zero and having a relative error p respectively, and-d/20≤p≤d/20; And
One latch closure portion, the position of being located at contiguous this planar portions of this projection circular cone is to be fixedly arranged in this holder.
2. like the optical lens of the 1st said LED light fixture of claim, wherein, these surface points have each point (3.78 on the X-Y coordinate plane; 0), (5.02,1.61), (6.16,3.19), (7.00; 4.43), (7.88,5.79), (8.67,7.10) and (9.53; 8.61), and the long d of this unit coordinate is 1mm, this relative error p is-0.05mm≤p≤0.05mm.
3. like the optical lens of the 2nd said LED light fixture of claim, wherein, the bottom surface of this accommodation chamber has more a convex lens structures.
4. like the optical lens of the 2nd said LED light fixture of claim, wherein, periphery has more a ring barricade towards the direction of this projection circular cone outside this latch closure portion.
5. like the optical lens of the 2nd said LED light fixture of claim, wherein, this accommodation chamber and this projection circular cone junction have more a rounding structure.
6. like the optical lens of the 1st said LED light fixture of claim, wherein, these surface points have each point (3.78 on the X-Y coordinate plane; 0), (5.09,1.50), (6.30,3.07), (7.27; 4.49), (8.07,5.79), (8.78,7.07) and (9.53; 8.61), and the long d of this unit coordinate is 1mm, this relative error p is-0.05mm≤p≤0.05mm.
7. like the optical lens of the 6th said LED light fixture of claim; Wherein, This planar portions has more one first refraction structure; And the bottom surface of this circular groove has more one second refraction structure, and this first refraction structure and this second refraction structure are arranged side by side by a plurality of hexagon refraction particles and form.
8. like the optical lens of the 6th said LED light fixture of claim, wherein, the bottom surface of this accommodation chamber has more a convex lens structures.
9. like the optical lens of the 6th said LED light fixture of claim, wherein, edge is provided with a ring barricade towards the direction of this projection circular cone outside this latch closure portion.
10. like the optical lens of the 1st said LED light fixture of claim, wherein, these surface points have each point (3.78 on the X-Y coordinate plane; 0), (4.52,0.95), (5.40,2.12), (6.33; 3.42), (7.27,4.83), (8.11,6.16) and (8.98; 7.62), and the long d of this unit coordinate is 1mm, this relative error p is-0.05mm≤p≤0.05mm.
11. optical lens like the 10th said LED light fixture of claim; Wherein, This planar portions has more one first refraction structure; And the bottom surface of this circular groove has more one second refraction structure, and this first refraction structure and this second refraction structure are arranged side by side by a plurality of hexagon refraction particles and form.
12. like the optical lens of the 10th said LED light fixture of claim, wherein, the bottom surface of this accommodation chamber has more a convex lens structures.
13. like the optical lens of the 10th said LED light fixture of claim, wherein, edge is provided with a ring barricade outside this latch closure portion towards the direction of this projection circular cone.
14. like the optical lens of the 10th said LED light fixture of claim, wherein, this accommodation chamber and this projection circular cone junction have more a rounding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204613548U CN202338860U (en) | 2011-09-23 | 2011-11-21 | Optical lens of LED (light-emitting diode) lamp |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285496.8 | 2011-09-23 | ||
| CN201110285496 | 2011-09-23 | ||
| CN2011204613548U CN202338860U (en) | 2011-09-23 | 2011-11-21 | Optical lens of LED (light-emitting diode) lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338860U true CN202338860U (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204613548U Expired - Fee Related CN202338860U (en) | 2011-09-23 | 2011-11-21 | Optical lens of LED (light-emitting diode) lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN202338860U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196671A1 (en) * | 2014-06-26 | 2015-12-30 | 欧普照明股份有限公司 | Lighting and optical module thereof |
| CN105953179A (en) * | 2016-06-28 | 2016-09-21 | 欧普照明股份有限公司 | Optical element, light source module and lighting equipment |
| US10794570B2 (en) | 2016-06-28 | 2020-10-06 | Opple Lighting Co., Ltd. | Optical element, light source module and lighting device |
-
2011
- 2011-11-21 CN CN2011204613548U patent/CN202338860U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196671A1 (en) * | 2014-06-26 | 2015-12-30 | 欧普照明股份有限公司 | Lighting and optical module thereof |
| CN105953179A (en) * | 2016-06-28 | 2016-09-21 | 欧普照明股份有限公司 | Optical element, light source module and lighting equipment |
| WO2018000972A1 (en) * | 2016-06-28 | 2018-01-04 | 欧普照明股份有限公司 | Optical component, light source module and lighting apparatus |
| US10794570B2 (en) | 2016-06-28 | 2020-10-06 | Opple Lighting Co., Ltd. | Optical element, light source module and lighting device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Hengli Town Tian Keng Industrial Zone 523478 in Guangdong city of Dongguan province No. 5 Patentee after: Dongguan Ledlink Optics, Inc. Address before: 523000 Guangdong province Dongguan City Hengli Town Xicheng Industrial District building B13 Patentee before: Dongguan Ledlink Optics, Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20141121 |
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| EXPY | Termination of patent right or utility model |