CN208703854U - It is totally reflected collimation lens - Google Patents
It is totally reflected collimation lens Download PDFInfo
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- CN208703854U CN208703854U CN201820050255.2U CN201820050255U CN208703854U CN 208703854 U CN208703854 U CN 208703854U CN 201820050255 U CN201820050255 U CN 201820050255U CN 208703854 U CN208703854 U CN 208703854U
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- total reflection
- light
- collimation lens
- reflection collimation
- light source
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Abstract
The utility model mainly provides a total reflection collimation lens, light for issuing for a light source carries out total reflection collimation, the total reflection collimation lens is rotary body, including an at least center collimating curve, a series of refractive side inclined-planes and a series of total reflection curved surfaces, wherein the center collimating curve is arranged at the centre of the total reflection collimation lens, the refractive side inclined-plane is set to the surrounding of the center collimating curve by ladder, and the total reflection curved surface is arranged by ladder for connecting the stair-stepping refractive side inclined-plane, the light that wherein light source issues is assigned direct irradiation to affiliated center collimating curve and affiliated refractive side inclined-plane.
Description
Technical field
The utility model belongs to field of vehicles, and in particular to a kind of structure is simple and hair can be to light source sending
The optical component that light is effectively collimated.
Background technique
As shown in Figure 1, TIR total reflection lens 10 ' in the prior art be transparent optical material, when light source (usually
LED light) light in the solid angle that issues reflect by TIR total reflection lens 10 ' and parallel by changing into after total reflection
Light.But the material of TIR total reflection lens 10 ' in the prior art is usually all thicker, the light that light source projects is in material
The energy of consume on path is just relatively more, and TIR total reflection lens 10 ' in the prior art are easy contraction distortion, thus
Light plane out-of-flatness caused by causing.After those skilled in the art are in order to make light source pass through the TIR total reflection lens 10 '
Light-emitting surface coplanar flat needs not only to mention in this way using feeding at a slow speed during manufacturing TIR total reflection lens 10 '
The high manufacturing time cost of the manufacture TIR total reflection lens 10 ', and injection pressure is big in injection moulding process, material weight,
The manufacturing cost of injection-moulding device can be improved.
In addition, as shown in Fig. 2, for another Fresnel Lenses 10 " in the prior art, the Fresnel Lenses 10 " is
Transparent optical material is made, and in the light that light source projects, the light in the cornerite solid angle of part passes through the Fresnel Lenses 10 "
Refraction after change into directional light, thickness is uniformly in the production process and integral thickness is partially thin, therefore light source for the Fresnel Lenses 10 "
Loss of the energy on the path of the material of the Fresnel Lenses 10 " compares less.But this Fresnel Lenses 10 " is only
The light of α 1 in the part cornerite solid angle of light source sending can be subjected to refraction utilization, and the light of rest part is then wasted, or
Person increases other optical components and is collected, therefore is also unfavorable for the effective use to light source.
Therefore, those skilled in the art's urgent need utility model one kind can be to the light effective use and structure that light source issues
Simply, easily fabricated collimation lens, so that the light issued to light source is effectively collimated.
Utility model content
One of the utility model is designed to provide a kind of total reflection collimation lens, the light for being issued for a light source into
Row collimation, the total reflection collimation lens is that class Fresnel is totally reflected collimation lens, to carry out for the light that the light source issues
Effectively collimation.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Structure is simple, easily fabricated, to be reduced to the manufacturing cost of the light source collimation.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
The point light source that the light source issues all is collimated into parallel area source by way of being totally reflected reflecting.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Any kind of LED light issued can be collimated, to improve the scope of application of the total reflection collimation lens.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the focus of the light source and institute
The focus for stating total reflection collimation lens is overlapped, to improve the effective of the light that the total reflection collimation lens issues the light source
Utilization rate.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Diameter and height between odds ratio TIR lens in the prior art it is bigger, that is to say, that when described in the utility model complete
When the height of reflection collimation lens is identical as the height of general T IR lens, total reflection collimation lens described in the utility model
Diameter is bigger than common TIR lens, and when the diameter and general T IR lens of total reflection collimation lens described in the utility model
Diameter it is identical when, the height of total reflection collimation lens described in the utility model is lower than general T IR lens, therefore this is practical
The novel total reflection collimation lens can also be correspondingly improved the collimation efficiency for the light that light source issues.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Diameter and height between ratio be 2.2 times of general T IR lens.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Focus f it is smaller, to keep the high H of entirety of the total reflection collimation lens smaller, therefore optical texture is thinner, to make light source
Loss of the light of sending in the total reflection collimation lens reduces.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Diameter it is bigger than the diameter of general T IR lens, therefore under same area and level situation, less LED light can be placed
Source quantity, therefore product is more economical when in use for total reflection collimation lens described in the utility model.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
In refraction prism L1 to L4 and be totally reflected curved surface T1 to T4 by different height four circle total reflection structure compositions, to make institute
State the optical texture thickness of total reflection collimation lens more evenly, the light that the light source issues passes through the total reflection collimation lens
The path of optical material is shorter, therefore luminescent material loss is lower.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Description of materials, color and transparency it is unrestricted, to improve the total reflection collimation lens in process for material
The range of choice of material.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
It is made using PMMA material, PC material, glass material, transparent material, trnaslucent materials or coloured transparent material etc..
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein if the light that light source issues is led to
The total reflection collimation lens of multiple dense arrangements is crossed, then loss of the light that light source issues in the total reflection collimation lens
It is smaller, and the light of light-emitting surface more evenly, no dark space.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Thickness uniformly, product shrink few, without pressure maintaining injection molding machine is fed at a slow speed, Shooting Technique is simple, product weight is lower, material
Material is less more economical.
One of the utility model is designed to provide a kind of total reflection collimation lens, wherein the total reflection collimation lens
Thinner signal lamp can be designed, lamps and lanterns directly mount surface of vehicle, the slot of mounted lamp are specially designed without car body, to make
The structure of vehicle is more simplified, and manufacture efficiency is higher, and cost is lower.
In order to achieve the above object, the utility model mainly provides a total reflection collimation lens, the light for being issued for a light source
Total reflection collimation is carried out, the total reflection collimation lens is rotary body, including an a series of at least center collimating curve, refractive sides
Inclined-plane and a series of total reflection curved surfaces, wherein the center collimating curve is arranged at the center of the total reflection collimation lens
Position, the refractive side inclined-plane is set to the surrounding of the center collimating curve by ladder, and the total reflection curved surface is by ladder
Setting is for connecting the stair-stepping refractive side inclined-plane, wherein the light that the light source issues is assigned direct irradiation to institute
State center collimating curve and the refractive side inclined-plane.
In wherein some embodiments, wherein the light beam that the light source issues includes first part's light and a second part
Light, wherein first part's light is located at the center of the light beam, the second part light is located at first part's light
Surrounding, wherein first part's light be collimated by the center collimating curve after light source injection it is parallel
Light, the second part light is after light source injection again to the total reflection curved surface after the refraction on the refractive side inclined-plane
It is totally reflected into directional light.
In wherein some embodiments, wherein the light that the light source issues passes through the part of the center collimating curve by institute
Center collimating curve birefringent collimator is stated into directional light or diffusion light, the angular range of light is ± 30 °.
In wherein some embodiments, wherein the light source is LED, the LED is white light, yellow light, feux rouges, blue light, gold
Yellow light, infrared LEDs, ultraviolet light LED or multi-chip LED.
In wherein some embodiments, wherein the focus of the light source is overlapped with the focus of the total reflection collimation lens.
In wherein some embodiments, wherein it is described total reflection collimation lens focus f range be 1mm≤f≤
10mm。
In wherein some embodiments, wherein the refractive side inclined-plane and the total reflection curved surface are enclosed by the n of different height
It is totally reflected structure composition, wherein the range of n is 2-10.
In wherein some embodiments, wherein the three-dimensional wrap angle sigma that the total reflection collimation lens is collected is 172 °.
In wherein some embodiments, wherein the range of the draw taper on the refractive side inclined-plane is 0 ° -10 °.
In wherein some embodiments, wherein it is described total reflection collimation lens diameter and height between ratio η=
3.45。
In wherein some embodiments, wherein the total reflection collimation lens has PMMA material to be made.
In wherein some embodiments, wherein the section on the refractive side inclined-plane is straight line or curve.
Detailed description of the invention
Fig. 1 is TIR total reflection lens optical texture schematic diagram in the prior art.
Fig. 2 is Fresnel Lenses optical texture schematic diagram in the prior art.
Fig. 3 is the structural schematic diagram of the first embodiment of total reflection collimation lens described in the utility model.
Fig. 4 is the first embodiment of total reflection collimation lens described in the utility model compared with common TIR lens
Structural schematic diagram.
Fig. 5 is the cross section structure schematic diagram that collimation lens is totally reflected described in multiple Fig. 3.
Fig. 6 is the horizontal display stereoscopic schematic diagram of total reflection collimation lens described in multiple Fig. 3.
Schematic perspective view when Fig. 7 is the display of total reflection collimation lens 3*3 described in multiple Fig. 3.
Fig. 8 is the light path schematic diagram of the first embodiment of total reflection collimation lens described in the utility model.
Fig. 9 is the optical simulation hot spot figure of total reflection collimation lens described in the utility model.
Specific embodiment
It is described below for disclosing the utility model so that those skilled in the art can be realized the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It is retouched following
The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, etc. Tongfangs
The other technologies scheme of case and the spirit and scope without departing from the utility model.
It will be understood by those skilled in the art that in the exposure of the utility model, term " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore on
Stating term should not be understood as limiting the present invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
As shown in figs. 3 to 9, the utility model mainly provides a kind of total reflection collimation lens 10, for sending out for a light source
Light out carries out total reflection collimation, and in the first embodiment of the utility model, the total reflection collimation lens is class phenanthrene alunite
That lens, the class Fresnel total reflection collimation lens 10 are rotary body, and parameter includes focus F1, focal length f, center collimation song
Face C1, refractive side inclined-plane L1 to L4, the ratio η of total reflection curved surface T1 to T4, diameter phi D and height H, wherein the center is quasi-
Straight curved surface C1 is arranged at the centre of the class Fresnel total reflection collimation lens, and the refractive side inclined-plane L1 to L4 is by rank
Ladder is set to the surrounding of the center collimating curve C1, and the total reflection curved surface T1 to T4 is arranged by ladder for being connected to rank
The refractive side inclined-plane L1 to L4 of scalariform, wherein the light that the light source issues, which is assigned direct irradiation to the center, collimates song
The face C1 and refractive side inclined-plane L1 to L4.
Assuming that having light sending, a portion light warp at the focus F1 of the class Fresnel total reflection collimation lens 10
The collimating curve C1 for crossing the class Fresnel total reflection collimation lens 10 carries out birefringent collimator, and another part light passes through institute
It states after the refraction of the refractive side inclined-plane L1 to L4 of class Fresnel total reflection collimation lens 10 again to the total reflection curved surface T1
Total reflection collimation is carried out to T4, all light sources dissipated in solid angle α are finally converted into parallel area source by point light source.
Specifically, the light source 20 is LED21, it is preferable that the LED21 is white light.
Alternatively, those skilled in the art can also set the LED21 to other colors, for example, yellow light, feux rouges,
Blue light, golden yellow light, infrared LEDs, ultraviolet light LED or multi-chip LED etc., and the utility model is not by the LED21's
The limitation such as type, wavelength, colour temperature and color, that is to say, that as long as those skilled in the art are in the above-mentioned exposure of the utility model
On the basis of, technical solution identical or approximate with the utility model is used, is solved identical or approximate as the utility model
The technical issues of, and reached technical effect identical or approximate with the utility model, belong to the protection of the utility model
Within the scope of, specific embodiment of the present utility model is not limited thereto.
As shown in Figure 8 and Figure 9, for the LED21 issue light by the class Fresnel total reflection collimation lens 10 into
Optical path diagram when row optical effect.
Specifically, when class Fresnel total reflection collimation lens 10 is used to be all-trans for the light that a light source 20 issues
When penetrating collimation, the focus F1 of the class Fresnel total reflection collimation lens 10 is overlapped with the focus of the light source 20.Work as institute
The focus for stating LED21 is overlapped with the focus F1 of class Fresnel total reflection collimation lens 10, the light beam that the LED21 is issued
210 include first part's light 2101 and a second part light 2102, wherein first part's light 2101 is positioned at the light
The center of beam 210, the second part light 2102 are located at around first part's light.Wherein first part's light
2101 form directional light 2101 after the collimation of the center collimating curve C1, and the second part light 2102 passes through the folding
The extremely total reflection curved surface T1 to T4 after the refraction of skew back face L1 to L4 is penetrated, then is all-trans by the total reflection curved surface T1 to T4
The injection of directional light 2102 is penetrated into, therefore, the light source 20 can be issued by being totally reflected collimation lens 10 by the class Fresnel
Light beam 210 be all collimated into directional light.
As a kind of deformation of the present embodiment, the light beam page 210 that the light source 20 issues can pass through the utility model institute
The class Fresnel stated is totally reflected collimation lens 10 and forms diffusion light, and the angular range for spreading light is ± 30 °.
More specifically, in the first embodiment of the utility model, the institute of the class Fresnel total reflection collimation lens 10
The range for stating focus f is 1mm≤f≤10mm, preferably f=2.7mm, and the class Fresnel is totally reflected what collimation lens 10 was collected
Three-dimensional wrap angle sigma range is 0 ° -180 °, preferably α=172 °, the refractive side of the class Fresnel total reflection collimation lens 10
The range of the draw taper β of inclined-plane L1 to L4 is 0 ° -10 °, preferably β=2 °, and the class Fresnel is totally reflected collimation lens 10
The diameter phi D=20.7mm and the height H=6mm ratio η=3.45.
The ratio of the diameter phi D and the height H of class Fresnel total reflection collimation lens 10 described in the utility model
Common TIR lens are bigger than in the prior art by value η.In other words, when the class Fresnel described in the utility model is all-trans
Penetrate collimation lens 10 height H it is identical as common TIR lens height when, then class Fresnel total reflection collimation lens 10
Diameter phi D is bigger than the diameter of general T IR lens, as the diameter phi D of class Fresnel total reflection collimation lens 10 and common
When the diameter of TIR lens is identical, then the class Fresnel is totally reflected height of the height H than general T IR lens of collimation lens 10
Want low, therefore, the collimating effect of class Fresnel total reflection collimation lens 10 described in the utility model is higher.
Preferably, class Fresnel described in the utility model is totally reflected the diameter phi D and the height H of collimation lens 10
Ratio η is 2.2 times of general T IR lens, that is to say, that when the class Fresnel total reflection collimation described in the utility model is saturating
When the height H of mirror 10 is identical as common TIR lens height, then the class Fresnel is totally reflected the diameter phi D of collimation lens 10
It is 2.2 times of the diameter of general T IR lens, when the diameter phi D and general T IR of class Fresnel total reflection collimation lens 10 are saturating
When the diameter of mirror is identical, then the height H of the general T IR lens is the 2.2 of the height of class Fresnel total reflection collimation lens 10
Times.
In addition, in the first embodiment of the utility model, the focus f of the class Fresnel total reflection collimation lens 10 compared with
It is small, to keep the whole height H of the class Fresnel total reflection collimation lens 10 also smaller, therefore the class Fresnel is totally reflected
The optical texture of collimation lens 10 is thinner.Simultaneously because the diameter phi D of the class Fresnel total reflection collimation lens 10 is larger, because
This area can only place lesser amount of LED light source when identical, to make the class Fresnel total reflection collimation lens 10
Product it is more economical.
Further, in the first embodiment of the utility model, the class Fresnel total reflection collimation lens 10
The refractive side inclined-plane L1 to the L4 and total reflection curved surface T1 to T4 is totally reflected structure compositions by four circles of different height.Such as figure
Shown in 5, in the first embodiment of the utility model, the section of the refractive side inclined-plane L1 to L4 is straight line.As
A kind of deformation of the utility model, those skilled in the art also can choose class Fresnel total reflection collimation lens 10
The refractive side inclined-plane L1 to the L4 and total reflection curved surface T1 to T4 is by the total reflection structure composition of other quantity, preferably circle number
Range is 2-10 circle, can also set the section of the refractive side inclined-plane L1 to L4 to the other shapes such as curved surface, this is practical new
The specific protection scope of type is not limited thereto.
Preferably, in the first embodiment of the utility model, the class Fresnel total reflection collimation lens 10 is PMMA
Material is made, refractive index 1.49, transmitance 92%, the LED be white light 2835SMT LED, parameter be lumen=
45Lm, optical simulation central light strength 4280cd, 2 θ=5 °.
Alternatively, the class Fresnel total reflection collimation lens 10 can also be by PC material, glass material, transparent material
Material, trnaslucent materials or coloured transparent material etc. are made, that is to say, that class Fresnel total reflection described in the utility model
Collimation lens 10 is not limited by factors such as the kind of material, transparency and colors, and those skilled in the art can be according to practical need
It asks and is specifically chosen, belonged within the protection scope of the utility model.
As a kind of change of the utility model, those skilled in the art can be according to the actual situation to the light source 20
Type, all parameters of class Fresnel total reflection collimation lens 10 and the class Fresnel are totally reflected collimation lens 10
Material is changed accordingly, if on the basis of the utility model above-mentioned exposure, use with the utility model it is identical or
Approximate technical solution solves the technical problem identical or approximate with the utility model, and has reached and the utility model
Identical or approximate technical effect, belongs within the protection scope of the utility model, specific embodiment of the present utility model
It is not limited thereto.
As a kind of further improvement of the utility model, as shown in fig. 7, by multiple class Fresnel ATR Opticals
Lens 10 carry out dense arrangement, and the light beam 210 that light source 20 issues passes through multiple class Fresnel total reflection lights of dense arrangement
Lens 10 are learned, then light loss of the light beam 210 that the light source 20 issues in the class Fresnel ATR Optical lens 10 is more
It is small, and the light source light of light-emitting surface more evenly, no dark space.
It is emphasized that class Fresnel ATR Optical lens 10 described in the utility model are not necessarily in the fabrication process
It is produced by the way of slow-motion material pressure maintaining injection molding machine, uniform feeding, therefore the class Fresnel ATR Optical is saturating
The manufacturing method and Shooting Technique of mirror 10 are simple, and product weight is lower, therefore the material used is less, to keep this practical
The cost of the novel class Fresnel ATR Optical lens 10 is lower more economical.
When class Fresnel ATR Optical lens 10 described in the utility model are used to provide entirely for the signal lamp in vehicle
When reflection light collimates, thinner signal lamp can be designed, so that lamps and lanterns to be directly mounted on to the surface of vehicle without vehicle
It is specially designed for the lamps and lanterns slot of mounted lamp, therefore the structure of vehicle can be made more simplified, manufacture efficiency is higher, and cost is more
It is low.
It should be understood by those skilled in the art that foregoing description and the embodiments of the present invention shown in the drawings are only used as
It illustrates and is not intended to limit the utility model.The purpose of this utility model completely and effectively realizes.The function of the utility model
Can and structural principle in embodiment show and illustrate, under without departing from the principle, the embodiments of the present invention can
To have any deformation or modification.
Claims (12)
1. a kind of total reflection collimation lens, the light for issuing for a light source carries out total reflection collimation, which is characterized in that described complete
Reflection collimation lens is rotary body, including an at least center collimating curve, a series of refractive side inclined-planes and a series of total reflections
Curved surface, wherein the center collimating curve is arranged at the centre of the total reflection collimation lens, the refractive side inclined-plane
The surrounding of the center collimating curve is set to by ladder, and the total reflection curved surface is stair-stepping for connecting by ladder setting
The refractive side inclined-plane, wherein the light that the light source issues is assigned direct irradiation to the center collimating curve and the refraction
Skew back face.
2. total reflection collimation lens according to claim 1, wherein the light beam that the light source issues includes a first part
Light and a second part light, wherein first part's light is located at the center of the light beam, the second part light is located at
The surrounding of first part's light, wherein first part's light from the light source injection after by the center collimating curve into
Row is collimated into directional light, and the second part light is after light source injection again to institute after the refraction on the refractive side inclined-plane
It states total reflection curved surface and is totally reflected into directional light.
3. total reflection collimation lens according to claim 1, wherein the light that the light source issues is collimated by the center
By the center collimating curve birefringent collimator at directional light or diffusion light, the angular range of light is ± 30 ° for the part of curved surface.
4. total reflection collimation lens according to claim 2, wherein the light source is LED, the LED be white light, yellow light,
Feux rouges, blue light, golden yellow light, infrared LEDs, ultraviolet light LED or multi-chip LED.
5. total reflection collimation lens according to claim 4, wherein the focus of the light source and total reflection collimation are saturating
The focus of mirror is overlapped.
6. total reflection collimation lens according to claim 5, wherein the range of the focus f of the total reflection collimation lens is
1mm≤f≤10mm。
7. total reflection collimation lens according to claim 6, wherein the refractive side inclined-plane and the total reflection curved surface by
The n circle total reflection structure composition of different height, wherein the range of n is 2-10.
8. total reflection collimation lens according to claim 7, wherein the three-dimensional wrap angle sigma that the total reflection collimation lens is collected
It is 172 °.
9. total reflection collimation lens according to claim 8, wherein the range of the draw taper on the refractive side inclined-plane is
0°-10°。
10. total reflection collimation lens according to claim 9, wherein the diameter and height of the total reflection collimation lens
Between ratio η >=2.
11. total reflection collimation lens according to claim 10, wherein the total reflection collimation lens be PMMA material or
PC transparent material.
12. total reflection collimation lens according to claim 11, wherein the section on the refractive side inclined-plane is straight line or song
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820050255.2U CN208703854U (en) | 2018-01-12 | 2018-01-12 | It is totally reflected collimation lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820050255.2U CN208703854U (en) | 2018-01-12 | 2018-01-12 | It is totally reflected collimation lens |
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| CN208703854U true CN208703854U (en) | 2019-04-05 |
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ID=65912267
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023041A (en) * | 2019-11-29 | 2020-04-17 | 东莞市万德光电科技有限公司 | Light filling lamp lens, light filling module and digital equipment |
-
2018
- 2018-01-12 CN CN201820050255.2U patent/CN208703854U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023041A (en) * | 2019-11-29 | 2020-04-17 | 东莞市万德光电科技有限公司 | Light filling lamp lens, light filling module and digital equipment |
| CN111023041B (en) * | 2019-11-29 | 2021-07-16 | 东莞市万德光电科技有限公司 | Light filling lamp lens, light filling module and digital equipment |
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Address after: 201314 room 108-24, No. 725, Nanliu highway, Xuanqiao Town, Pudong New Area, Shanghai Patentee after: Shanghai Kaiteng Signal Equipment Co.,Ltd. Address before: 201314 room 108-24, No. 725, Nanliu highway, Xuanqiao Town, Pudong New Area, Shanghai Patentee before: Shanghai Cata Signal Co.,Ltd. |