CN203893071U - Lens for lighting equipment and lighting equipment - Google Patents
Lens for lighting equipment and lighting equipment Download PDFInfo
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- CN203893071U CN203893071U CN201420202284.8U CN201420202284U CN203893071U CN 203893071 U CN203893071 U CN 203893071U CN 201420202284 U CN201420202284 U CN 201420202284U CN 203893071 U CN203893071 U CN 203893071U
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- light
- lens
- total internal
- internal reflection
- lighting apparatus
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Abstract
The utility model relates to a lens for lighting equipment and lighting equipment. The lighting equipment comprises a light-incidence surface, at least one transmitting surface, at least one total internal reflection surface and a light emitting surface, wherein the at least one transmitting surface is arranged to be applicable to directly transmitting light rays income by the light-incidence surface to the lens; the at least one total internal reflection surface is arranged to be applicable to emerging light rays totally reflected to the lens through the total internal reflection surface, wherein the at least one transmitting surface and the total internal reflection surface are alternately arranged on one side of the lens relative to the light-incidence surface. The light of the lighting equipment can be more uniformly distributed by the lens provided by the utility model.
Description
Technical field
Embodiment of the present disclosure relates to lens and lighting apparatus, more specifically, relates to for the lens of lighting apparatus and uses the lighting apparatus of these lens.
Background technology
Light emitting diode (LED) is becoming more and more welcome as the energy-conservation substitute of incandescent lamp in numerous application.Different due to the shape of LED and incandescent lamp and luminosity, are therefore used LED conventionally to adopt the arrangement different from incandescent lamp as the lighting apparatus of light source.
Fig. 1 shows the schematic diagram of a kind of existing use LED as the lighting apparatus of light source.In Fig. 1, lighting apparatus 1 comprises base for being connected to power supply, is arranged on printed circuit board (PCB) (PCB) 11, the drive circuit (not shown) on base and is arranged in two relative lip-deep multiple LED9 of PCB11.
Fig. 2 shows the luminous distribution schematic plan view of the lighting apparatus 1 of Fig. 1.Can find out, in the horizontal plane vertical with PCB11, the luminous distribution of lighting apparatus 1 is mainly gathered in the both sides that are furnished with LED9 of PCB11, and the both sides of not arranging LED9 of PCB11 do not have light to distribute substantially, cause like this light to distribute also inhomogeneous, and this is unsatisfactory for room lighting.Therefore, need the more uniform lighting apparatus of a kind of luminous distribution.
Utility model content
In view of foregoing, embodiment of the present disclosure aims to provide and a kind ofly makes the more uniform lens of luminous distribution and use the lighting apparatus of these lens.
According to an aspect of the present disclosure, a kind of lens for lighting apparatus are provided, it is characterized in that, comprising: light incident surface; At least one light transmitting surface, is set to be suitable for making the light via described light incident surface incident directly to transmit described lens; At least one total internal reflection surface, is set to be suitable for to make the light total reflection via described light incident surface incident return lens; And light exit surface, be configured to be suitable for to make to return through described total internal reflection surface total reflection the beam projecting of lens, wherein said at least one light transmitting surface is staggered with described total internal reflection surface a side relative with described light incident surface that is arranged in described lens.
Alternatively, described lens are shaped as strip and have inner chamber, and described inner chamber is suitable for placing at least one light source, and the inner surface in the face of described at least one light source of wherein said lens forms described light incident surface.
Alternatively, described inner chamber is in rectangular-shaped, cubic, cone-shaped, cylindrical shape, Elliptic Cylinder shape and polyhedral.
Alternatively, described light transmitting surface and described at least one total internal reflection surface are plane or column face or compound eye structural.
Alternatively, described lens also comprise the light transmitting surface that at least one is other, be set to be suitable for to make be reflected back lens and make the direct outgoing of another part of described light via a part for the light of described light incident surface incident, wherein said at least one light transmitting surface, described at least one total internal reflection surface and described at least one other light transmitting surface are alternately arranged in a side relative with described light incident surface of described lens.
According to another aspect of the present disclosure, a kind of lighting apparatus is provided, comprising: at least one light source; And lens, being configured to the light that described at least one light source of guiding sends, described lens comprise: light incident surface, face mutually with described at least one light source; At least one light transmitting surface, is set to be suitable for making the light via described light incident surface incident directly to transmit described lens; At least one total internal reflection surface, is set to be suitable for making the light total reflection via described light incident surface incident to return lens; And light exit surface, be configured to be suitable for making to return through described at least one total internal reflection surface total reflection the beam projecting of lens, wherein said at least one light transmitting surface is staggered with described at least one total internal reflection surface a side relative with described light incident surface that is arranged in described lens.
Alternatively, described lens are shaped as strip and have inner chamber, and described inner chamber is suitable for placing described at least one light source, and wherein said lens face forms described light incident surface to the inner surface of described at least one light source.
Alternatively, described at least one light source is the LED being arranged on printed circuit board, and the inner surface in the face of described LED of described lens forms described light incident surface.
Alternatively, described at least one light source comprises multiple LED, and described multiple LED are arranged on described printed circuit board two surfaces respect to one another.
Alternatively, described lens also comprise the light transmitting surface that at least one is other, be set up and be suitable for making being reflected back lens and making the direct outgoing of another part of described light via a part for the light of described light incident surface incident, wherein said at least one light transmitting surface, described at least one total internal reflection surface and described at least one other light transmitting surface are alternately arranged in a side relative with described light incident surface of described lens.
By using according to the lens of embodiment of the present disclosure or lighting apparatus, make to distinguish outgoing and reflection from the light of light source via light transmitting surface and the total internal reflection surface of interlaced arrangement, wherein through the light of total internal reflection via light exit surface outgoing, thereby make the light of lighting apparatus distribute more even.
Brief description of the drawings
Can understand better the disclosure with reference to following accompanying drawing and description.Parts in figure must in proportion, on the contrary, not focus in diagram principle of the present disclosure.In addition, in the drawings, identical reference number refers to corresponding part.In the accompanying drawings:
Fig. 1 shows and uses the schematic diagram of LED as an embodiment of the lighting apparatus of light source;
Fig. 2 shows the schematic diagram of the distribution of the light of the lighting apparatus that uses Fig. 1;
Fig. 3 shows according to the schematic diagram of the lighting apparatus of an embodiment of the present disclosure;
Fig. 4 shows the schematic diagram in a cross section of the lighting apparatus of Fig. 3;
Fig. 5 shows and uses according to the schematic diagram of the distribution of the light of the lighting apparatus of an embodiment of the present disclosure;
Fig. 6 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section;
Fig. 7 shows according to the schematic diagram of a part for the lens surface of another embodiment of the present disclosure;
Fig. 8 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section;
Fig. 9 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section;
Figure 10 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section; And
Figure 11 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section.
Detailed description of the invention
Set forth in the following description some detail to the thorough understanding of the various aspects to subject content of the present disclosure is provided.But under the situation without these details, still can realize subject content of the present disclosure.In some instances, not yet specifically describe the known features and the method that form the structure associated with surface mounting technology, in order to avoid the description of the fuzzy other side to present disclosure.
Unless context separately has requirement, otherwise in description and appended claims full text, word " comprises " will be construed to the open meaning that comprises, and that is to say, be interpreted as " including but not limited to ".
Quote in this specification " embodiment " or " embodiment " and mean that special characteristic, structure or the characteristic described in conjunction with this embodiment are contained at least one embodiment.Therefore, occur that in this specification expressing " in one embodiment " or " in an embodiment " may not all refer to identical aspect everywhere.In addition, in can be aspect one or more of present disclosure, combine in any appropriate manner special characteristic, structure or characteristic.
In conjunction with Fig. 3-Fig. 5, an embodiment of the present disclosure is described now.In Fig. 3, lighting apparatus 2 has and the essentially identical layout shown in Fig. 1, and difference is that the equipment 2 in the embodiment of Fig. 3 has lens 3.Lens 3 can be formed as resin lens by Shooting Technique.Those skilled in the art are further appreciated that also can be by using other optical clear or trnaslucent materials such as glass to form lens 3.PCB and be arranged at least one light source (for example at least one LED) on PCB and be arranged in the inner chamber of lens 3, wherein multiple LED can launch the light of identical color, for example white light.Those skilled in the art are also appreciated that multiple LED also can send the light of different colours, for example green light, red light or blue light, and can be by using drive circuit to control respectively enabling and forbidding of each LED, to obtain different illuminating effects.It will be understood by those skilled in the art that in other embodiment more of the present disclosure, also can there is no inner chamber, but directly wrap up PCB and LED by lens 3, for example, by Shooting Technique, lens 3 are formed as contacting with LED with PCB.In the embodiments of figure 3, lens 3 have the configuration of basic strip, on two of strip relative surfaces, have micro-structural.The lip-deep micro-structural of lens 3 and lens 3 is described below in conjunction with Fig. 4.
Fig. 4 shows the sectional view of a position on the lens 3 of the lighting apparatus 2 in Fig. 3.In Fig. 4, PCB11 and be arranged in LED9 on two opposite flanks of PCB11 and be positioned at the inner chamber 8 of lens 3.As mentioned above, lens 3 can not have inner chamber 8 yet, but the light incident surface 4 of lens 3 directly contacts with multiple LED9 with PCB11.In addition,, in some other embodiment, inner chamber 8 can be presented as through hole.In the embodiment of Fig. 4, lens 3 also have light incident surface 4, at least one light transmitting surface 5, at least one total internal reflection surface 6 and light exit surface 7.Micro-structural in Fig. 4 is included in light transmitting surface 5 and the total internal reflection surface 6 of interlaced arrangement on two relative sides of lens 3.Should be noted that interlaced arrangement described here comprises the situation only with a light transmitting surface 5 and a total internal reflection surface 6, the micro-structural of for example upside only has a light transmitting surface 5 and a total internal reflection surface 6.In this case, light transmitting surface 5 and the total internal reflection surface 6 of interlaced arrangement are arranged side by side, wherein, via the light of light incident surface 4 incidents via light transmitting surface 5 outgoing or via total internal reflection surface 6 total internal reflections to light exit surface 7.For example, have about the vertical axle in the cross section with shown in Fig. 4 at PCB11 place in micro-structural under the situation of axial symmetry layout, only total internal reflection surface 6 in the micro-structural of upside is the light exit surface 7 to right side by the light total internal reflection via light incident surface 4 incidents, and the only total internal reflection surface in the micro-structural of downside is the light exit surface to left side by the light total internal reflection via light incident surface 4 incidents.In this case, the light transmitting surface and the total internal reflection surface that have an interlaced arrangement still can obtain more uniform luminous distribution.In conjunction with Fig. 3 and Fig. 4, can find out that each light transmitting surface 5 and each total internal reflection surface 5 reality are the basic plane for strip.
In the time that lighting apparatus 2 energisings are enabled, luminous as multiple LED9 of light source.The light incident surface 4 of rays pass through lens 3 enters lens 3, wherein entering after lens 3 with the light-emitting area of LED9 and the substantially vertical light of light incident surface 4, a part is via the direct transmission of light transmitting surface 5, and another part light is entering the rear arrival total internal reflection surface 6 of lens 3 via light incident surface 4, light because of the optically denser medium known to those skilled in the art (, lens 3) and the former thereby experiences total internal reflection of the incidence angle of optically thinner medium (for example air) interface, this a part of light is the another side to lens 3 by total internal reflection, for example, with perpendicular surface, the surface at micro-structural place, in the example of Fig. 4, this another side is light exit surface 7.Light is arriving after light exit surface 7, the outgoing because incidence angle is less than the critical angle of experiences total internal reflection.
In the embodiment of Fig. 4, only show the light path of the multiple LED9 in a side of PCB11.It will be understood by those skilled in the art that the multiple LED9 on the opposite side of PCB11 can have essentially identical light path.
Those skilled in the art are further appreciated that in some other embodiment on the other both sides of lens 3, to have substantially similar micro-structural, now, need to have the LED corresponding with it to arrange.
Structure shown in Fig. 3 and Fig. 4 is only for explanation, and is not intended to restriction.It will be understood by those skilled in the art that can have other arrange, for example, PCB11 only has at least one LED9 in one side, for example 1 LED, lens 3 only with LED opposite side on there is above-mentioned micro-structural.
Fig. 5 shows and uses according to the schematic diagram of the distribution of the light of the lighting apparatus of the embodiment of Fig. 3 of the present disclosure.As shown in Figure 5, use the lighting apparatus of embodiment of Fig. 3, can obtain than the more uniform light distribution of the lighting apparatus of the embodiment of Fig. 1.
Below in conjunction with Fig. 6, another embodiment of the present disclosure is described.
Fig. 6 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section, structure shown in Fig. 6 has and the essentially identical layout of the structure shown in Fig. 4, difference is that at least one light transmitting surface 5 in Fig. 6 and the cross section of at least one total internal reflection surface 6 have slight curving arc, is column faces thereby make each light transmitting surface 5 and each total internal reflection surface 6 | [ZW1].Particularly, the cross section of column face is arc, and the cross section vertical with described cross section of column face is rendered as substantially straight line segment.In the time that the light via light incident surface 4 incidents arrives light transmitting surface 5, due to the cross section of its arc, therefore via direction of light the heterogeneity of light transmitting surface 5 transmissions, and in the time that the light via light incident surface 4 incidents arrives total internal reflection surface 6, due to the cross section of its arc, therefore the direction of light reflecting via total internal reflection surface 5 heterogeneity, sentence different directions outgoing at the diverse location of light exit surface 7 then.Lighting apparatus 2 obtains good mixed light performance thus, the light time that this feature is sent different colours at multiple LED9 is particularly favourable, the for example LED9 in Fig. 4 comprises 3 LED subelements that are arranged side by side, for example red LED subelement, green LED subelement and blue led subelement.In addition,, when the column face of light transmitting surface 5 and total internal reflection surface 6 is coarse when surperficial, due to the light via light transmitting surface 5 transmissions with via the ambiguity of the direction of the light of total internal reflection surface 6 total internal reflections, can obtain further mixed light performance.Be appreciated that in the time that the cross section of column face is arc or rough surface, via the light of light transmitting surface 5 transmissions with may not be to be transmitted completely or total internal reflection via the light of total internal reflection surface 6 total internal reflections.For example, as long as the major part (, 50%, 75%, 80% or 90%) in the light of arrival light transmitting surface 5 and total internal reflection surface 6 is transmitted and total internal reflection, still can obtains good uniform light according to the lighting apparatus 2 of this embodiment and distribute.
Fig. 7 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section, structure shown in Fig. 7 has and the essentially identical layout of the structure shown in Fig. 6, and difference is that the cross section of at least one light transmitting surface 5 in Fig. 7 and at least one total internal reflection surface 6 has the structure of compound eye.The lens unit that compound eye structural shown in Fig. 7 is dimpling due to its each minor structure, thereby can obtain than the better mixed light performance of the column face structure shown in Fig. 6, the light time that this feature is sent different colours at multiple LED9 is particularly favourable.
In the embodiment describing for Fig. 3-Fig. 7 above, PCB11, LED9 and lens 3 have essentially identical overall structure, and difference is the variation of surface micro-structure.Describe according to the lighting apparatus of some other embodiment below in conjunction with Fig. 8-Figure 10, in lighting apparatus in these embodiments, PCB11, multiple LED9 and lens 3 have different layouts.
Fig. 8 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section.Lens arrangement entirety in Fig. 8 is triangular prism, and in lens 3, has optional inner chamber as above, and wherein each cross section of triangular prism has basic identical triangular cross-sectional configuration.As shown in Figure 8, the cross section of lens 3, PCB11 has the layout being generally triangular, wherein on each surface of lens 3, have with the surface of Fig. 4 on essentially identical micro-structural.Use the layout of the lighting apparatus of Fig. 8, can obtain than the more uniform light distribution of the lighting apparatus of Fig. 4.It will be understood by those skilled in the art that the surface micro-structure shown in Fig. 6 and Fig. 7 also can be with the textural association shown in Fig. 8 to obtain more good mixed light performance.
Fig. 9 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section.Lens arrangement entirety in Fig. 9 is cuboid, and in lens 3, has optional inner chamber as above, and wherein each cross section of cuboid has essentially identical rectangular cross sectional shape.As shown in Figure 9, the cross section of lens 3, PCB11 has the basic layout for rectangle, wherein on each surface of lens 3, have with the surface of Fig. 4 on essentially identical micro-structural.Use the layout of the lighting apparatus of Fig. 9, can obtain than the more uniform light distribution of the lighting apparatus of Fig. 8.It will be understood by those skilled in the art that the surface micro-structure shown in Fig. 6 and Fig. 7 also can be with the textural association shown in Fig. 9 to obtain more good mixed light performance.
Figure 10 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section.Lens arrangement entirety in Figure 10 is triangular prism, different from the embodiment shown in Fig. 8, and the inner chamber in the embodiment of Figure 10 is circular.As shown in figure 10, the cross section of lens 3, PCB11 has the layout being generally triangular, wherein on each surface of lens 3, have with the surface of Fig. 4 on essentially identical micro-structural.Use the layout of the lighting apparatus of Figure 10, can obtain than the more uniform light distribution of the lighting apparatus of Fig. 4.It will be understood by those skilled in the art that the surface micro-structure shown in Fig. 6 and Fig. 7 also can be with the textural association shown in Figure 10 to obtain more good mixed light performance.
It will be appreciated by those skilled in the art that, structure shown in Fig. 8-Figure 10 is only signal but not is intended to restriction, can improve according to actual needs the layout of lens, PCB and multiple LED, the profile in the cross section of for example lens can be substantially the polygon such as pentagon, hexagon, or irregular shape.In addition,, under the situation that has inner chamber, inner chamber can have and the essentially identical shape in lens cross section, or different shapes, such as triangle, circle, ellipse etc.In addition, lens 3 also can adopt the structure that is different from strip, and that for example lens 3 can use is rectangular-shaped, the layout of cubic, cone-shaped, cylindrical shape, Elliptic Cylinder shape and polyhedral and so on.It will be understood by those skilled in the art that the above-mentioned arbitrary concrete layout that is not limited to of the present disclosure.
Figure 11 shows according to the schematic diagram in the lighting apparatus of another embodiment of the present disclosure cross section.Structure shown in Figure 11 has and the essentially identical layout of the structure shown in Fig. 4, difference is that the lighting apparatus in Figure 11 also has at least one other light transmitting surface 10, it makes to be reflected back toward lens 3 via a part for the light of described light incident surface 4 incidents, makes the direct outgoing of another part of described light simultaneously.As shown in figure 11, at least one other light transmitting surface 10 is alternately arranged with at least one light transmitting surface 5 and at least one total internal reflection surface 6.Use the lens 3 of this configuration, can change according to actual needs luminous distribution.It will be understood by those skilled in the art that the interlaced arrangement shown in Figure 11 is only example, can use other interlaced arrangement, for example, lens have successively light transmitting surface 5, total internal reflection surface 6, light transmitting surface 5, other light transmitting surface 10 repeat arrange.
It will be understood by those skilled in the art that the surface micro-structure shown in Fig. 6 and Fig. 7 also can be with the textural association shown in Figure 11 to obtain more good mixed light performance.Those skilled in the art are further appreciated that the structure of Fig. 8-Figure 10 also can combine to obtain with the structure shown in Figure 11 the light distribution of expectation according to actual needs.
It will be understood by those skilled in the art that above and can freely be selected to be according to actual needs used in combination by those skilled in the art for the layout described in Fig. 2-Figure 11 or the described content of architectural feature, but not only limit to independent use.
Although described the disclosure with reference to some detailed description of the invention, should be appreciated that, the disclosure is not limited to disclosed detailed description of the invention.The disclosure is intended to contain interior included various amendments and the equivalent arrangements of spirit and scope of claims.The scope of claims meets the most wide in range explanation, thereby comprises all such amendments and equivalent structure and function.
Claims (10)
1. the lens for lighting apparatus (2) (3), is characterized in that, comprising:
Light incident surface (4);
At least one light transmitting surface (5), is set to be suitable for making the light via described light incident surface (4) incident directly to transmit described lens (3);
At least one total internal reflection surface (6), is set to be suitable for making the light total reflection via described light incident surface (4) incident to return lens (3); And
Light exit surface (7), is configured to be suitable for making to return through described total internal reflection surface (6) total reflection the beam projecting of lens,
Wherein said at least one light transmitting surface (5) is staggered with described total internal reflection surface (6) side relative with described light incident surface (4) that is arranged in described lens (3).
2. lens according to claim 1 (3), it is characterized in that, described lens (3) are shaped as strip and have inner chamber (8), described inner chamber (8) is suitable for placing at least one light source (9), and the inner surface in the face of described at least one light source (9) of wherein said lens (3) forms described light incident surface (4).
3. lens according to claim 2 (3), is characterized in that, described inner chamber (8) is in rectangular-shaped, cubic, cone-shaped, cylindrical shape, Elliptic Cylinder shape and polyhedral.
4. according to the lens (3) described in any one in claim 1 to 3, it is characterized in that, described light transmitting surface (5) and described at least one total internal reflection surface (6) are plane or column face or compound eye structural.
5. according to the lens (3) described in any one in claim 1 to 3, it is characterized in that, described lens (3) also comprise at least one other light transmitting surface (10), be set to be suitable for to make be reflected back lens (3) and make the direct outgoing of another part of described light via a part for the light of described light incident surface (4) incident, wherein said at least one light transmitting surface (5), described at least one total internal reflection surface (6), and described at least one other light transmitting surface (10) is alternately arranged in a side relative with described light incident surface (4) of described lens (3).
6. a lighting apparatus (2), is characterized in that, comprising:
At least one light source (9); And
Lens (3), are configured to the light that described at least one light source (9) of guiding sends, and described lens (3) comprising:
Light incident surface (4), faces mutually with described at least one light source (9);
At least one light transmitting surface (5), is set to be suitable for making the light via described light incident surface (4) incident directly to transmit described lens (3);
At least one total internal reflection surface (6), is set to be suitable for making the light total reflection via described light incident surface (4) incident to return lens (3); And
Light exit surface (7), is configured to be suitable for making to return through described at least one total internal reflection surface (6) total reflection the beam projecting of lens,
Wherein said at least one light transmitting surface (5) is staggered with described at least one total internal reflection surface (6) side relative with described light incident surface (4) that is arranged in described lens (3).
7. lighting apparatus according to claim 6 (2), it is characterized in that, described lens (3) are shaped as strip and have inner chamber (8), described inner chamber (8) is suitable for placing described at least one light source (9), and the inner surface that wherein said lens (3) are faced described at least one light source (9) forms described light incident surface (4).
8. according to the lighting apparatus described in claim 6 or 7 (2), it is characterized in that, described at least one light source (9) is the LED being arranged on printed circuit board (11), and the inner surface in the face of described LED of described lens forms described light incident surface.
9. lighting apparatus according to claim 8 (2), is characterized in that, described at least one light source comprises multiple LED, and described multiple LED are arranged on described printed circuit board (11) two surfaces respect to one another.
10. according to the lighting apparatus described in claim 6 or 7 (2), it is characterized in that, described lens (3) also comprise at least one other light transmitting surface (10), be set up and be suitable for making being reflected back lens (3) and making the direct outgoing of another part of described light via a part for the light of described light incident surface (4) incident, wherein said at least one light transmitting surface (5), described at least one total internal reflection surface (6), and described at least one other light transmitting surface (10) is alternately arranged in a side relative with described light incident surface (4) of described lens (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202284.8U CN203893071U (en) | 2014-04-18 | 2014-04-18 | Lens for lighting equipment and lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202284.8U CN203893071U (en) | 2014-04-18 | 2014-04-18 | Lens for lighting equipment and lighting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893071U true CN203893071U (en) | 2014-10-22 |
Family
ID=51719473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202284.8U Expired - Fee Related CN203893071U (en) | 2014-04-18 | 2014-04-18 | Lens for lighting equipment and lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893071U (en) |
-
2014
- 2014-04-18 CN CN201420202284.8U patent/CN203893071U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |