CN204176562U - Light-emitting device and there is its projection arrangement - Google Patents
Light-emitting device and there is its projection arrangement Download PDFInfo
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- CN204176562U CN204176562U CN201420567889.7U CN201420567889U CN204176562U CN 204176562 U CN204176562 U CN 204176562U CN 201420567889 U CN201420567889 U CN 201420567889U CN 204176562 U CN204176562 U CN 204176562U
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Abstract
The utility model provides a kind of light-emitting device with excellent heat dispersion performance, comprises optical conversion element and drive motors; Described optical conversion element moves under the driving of drive motors, optical conversion element described in predetermined time in the period of motion has at least part to be in predeterminated position, described optical conversion element comprises integrating rod and material for transformation of wave length, and described material for transformation of wave length is located on described integrating rod.Light-emitting device of the present utility model, each optical conversion element is discrete setting each other, is connected with motor each via connecting rod.So in the process of rotating, each luminescent conversion unit fully contacts with heat eliminating medium, and its heat produced can distribute in time.
Description
Technical field
The utility model relates to optical technical field, particularly relates to a kind of light-emitting device and uses its projection arrangement.
Background technology
At present, the application widely that fluorescent material obtains in light-emitting device as material for transformation of wave length, but fluorescent material is by the restriction of temperature characterisitic, when temperature is higher, luminous efficiency can sharply decline, prior art is in order to solve the heat dissipation problem of fluorescent material, usual employing is as the luminous device structure in Fig. 1, fluorescent material 102 is placed on substrate 101, substrate 101 rotates and fluorescent material is excited in turn under the drive of motor 103, excite the stimulated luminescence of rear generation, enter the even light of integrating rod 104 after being collected by reverberation bowl 105, laggard enter in ray machine.
This luminous device structure is complicated, between reverberation bowl 105 and integrating rod 104 and fluorescent material 102, position accuracy demand is high, and substrate 101 produces noise when rotated, along with the vibrations of the increase motor of service time increase, reverberation bowl 105 is caused to offset with the position of fluorescent material 102, cause luminous light path to change, easily cause product bug.In addition on the one hand, the heat that integrating rod 104 accumulates at work can not distribute in time, affects the temperature characterisitic of fluorescent material further, causes luminous efficiency to decline.
Therefore a kind of structure is developed simple, the technical problem that the good light-emitting device that dispels the heat becomes urgently to be resolved hurrily.
Utility model content
It is simple that the technical problem that the utility model mainly solves is to provide a kind of structure, is convenient to the light-emitting device dispelled the heat.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of light-emitting device, comprises light converting system and drive motors; Described smooth converting system is moved under the driving of drive motors, light converting system described in predetermined time in the period of motion has at least part to be in predeterminated position, described optical conversion element comprises integrating rod and material for transformation of wave length, and described material for transformation of wave length is located on described integrating rod.
Wherein, light-emitting device at least has two independently described optical conversion elements, and each described optical conversion element is connected with drive motors each via connecting rod.
Wherein, within the described period of motion, described at least one, optical conversion element is in predeterminated position, or in described motion light period, optical conversion element described at least one has part to be in predeterminated position, or within the described period of motion, the space between optical conversion element is in predeterminated position.
Wherein, described integrating rod comprises side, incident end face and outgoing end face, and the incident end face of described integrating rod is provided with material for transformation of wave length, and the Stimulated Light after described integrating rod collects material for transformation of wave length conversion also carries out dodging.
Wherein, the side at least partially of described integrating rod is provided with the first radiator or/and described material for transformation of wave length is provided with the second radiator away from the one side of incident end face.
Wherein, reflecting layer is provided with between described first radiator and the side of described integrating rod.
Wherein, described reflecting layer is plate the metallic reflector that is located on described integrating rod side or reflecting medium film, or for being clamped in the metallic reflector between integrating rod and the first radiator, or light is cutd open on the surface that the first radiator contacts with integrating rod is used as reflecting layer.
Wherein, described metallic reflector is silverskin or aluminium film, is fixed on integrating rod side after described first radiator welds with silverskin; Or arrange welding adjuvant and form pad on described aluminium film, described first radiator is fixed on integrating rod side after being welded with aluminium film by the pad that this welding adjuvant is formed.
Wherein, the deielectric-coating of the anti-Stimulated Light of exciting light is provided with at described material for transformation of wave length away from the surface of incident end face; Or be provided with total reflection medium film between described material for transformation of wave length and described second radiator.
Wherein, between described material for transformation of wave length and the deielectric-coating of the saturating anti-Stimulated Light of exciting light, air gap is provided with; Or air gap is provided with between described material for transformation of wave length and described total reflection medium film.
Wherein, the outer peripheral face of described material for transformation of wave length is parallel with the respective side of described integrating rod, and at least part of side of described integrating rod is provided with reflecting layer, and described reflecting layer extends and covers the outer peripheral face of material for transformation of wave length.
Wherein, described optical conversion element also comprises preposition integrating rod, and described preposition integrating rod carries out pretreatment to exciting light, and described material for transformation of wave length is clamped between described preposition integrating rod and integrating rod Stimulated Light being carried out to dodging.
Of the present utility modelly another aspect provides a kind of projection arrangement, this projection adopts light-emitting device as above.
Compared with prior art, light-emitting device of the present utility model, each optical conversion element is discrete setting each other, is connected with motor each via connecting rod.So in the process of rotating, each luminescent conversion unit fully contacts with heat eliminating medium, and its heat produced can distribute in time.Meanwhile, the projection arrangement provided of the present utility model, under the driving of servomotor, each optical conversion element can rest on predeterminated position accurately, can ensure high-efficiency bight-dipping.
Accompanying drawing explanation
Fig. 1 is the structural representation of light-emitting device in prior art;
Fig. 2 is the concrete structure schematic diagram of integrating rod in the utility model light-emitting device;
Fig. 3 is the distressed structure schematic diagram of integrating rod in the utility model light-emitting device;
Fig. 4 is integrating rod different light inlet mode structural representation in the utility model light-emitting device;
Fig. 5 is optical conversion element fluorescent material modified node method schematic diagram in the utility model light-emitting device;
Fig. 6 is the utility model light-emitting device concrete structure schematic diagram;
Fig. 7 is the structural representation that the utility model light-emitting device has 2 optical conversion elements; And
Fig. 8 is the structural representation that in the utility model light-emitting device, integrating rod arranges pretreatment element
Detailed description of the invention
The technical solution of the utility model is illustrated below in conjunction with accompanying drawing, it should be noted that, the utility model, if the light mainly Stimulated Light that integrating rod is collected, then described integrating rod incident end face refers to the end face that Stimulated Light first time enters integrating rod, if the light being through filter that integrating rod is collected, then the light after incident end face is through filter enters the end face of integrating rod for the first time.
Embodiment 1
Refer to Fig. 6, in order to make optical conversion element fully dispel the heat, will preferably select four optical conversion elements 10 for citing in the present embodiment, the angle between each optical conversion element 10 is 90 ° of layouts.Be connected with drive motors 30 respectively each via connecting rod 20, the number of certain optical conversion element is not limited to four.Such as can be 2, as Fig. 7, the angle between optical conversion element can be that other are arbitrarily angled.By optical conversion element 10, the light converting system that connecting rod 20 and drive motors 30 are formed accepts the light beam that light source (not shown) sends, and integrating rod 104 collects the light beam through light converting system.Light beam through integrating rod 104 can enter ray machine by relay system 100.Light source of the present invention preferably selects solid state light emitter.Optical conversion element 10 moves under the driving of drive motors 30, and in motion sometime, optical conversion element has at least a part to be in predeterminated position, and this predeterminated position refers on the optical axis path of light source, accepts the light beam that light source sends.The light beam that in present embodiment, light source sends as required also directly by the space between each optical conversion element 10, can be collected by light collecting system.
According to the needs of subsequent optical path, the light period of light source is controlled, during the light beam sent only needing light source, the light source luminescent when space of light source between optical conversion element 10 is on optical axis can be controlled, when subsequent optical path needs the light beam after optical conversion element 10 is changed, control light source and be in light source luminescent on optical axis at optical conversion element 10.When needing the light beam of light beam of light source and the mixing of the light beam after optical conversion element 10 is changed, light source can be controlled luminous when optical conversion element 10 part is in light source optical axis.So, different light beams can be obtained by the light period controlling light source from the motion process of optical conversion element 10, meet various application occasions.Greatly widen the scope of application of this light-emitting device.
In present embodiment, drive motors 30 preferably uses servomotor, because servomotor has accurate positioning function, optical conversion element 10 can be controlled when the different light beam of needs and be in precalculated position accurately, to obtain the higher light beam of purity, to the less demanding occasion of purity, stepper motor can be selected to replace driven by servomotor light converting system.
The integrating rod 104 of present embodiment has side, incident end face and outgoing end face, and the incident end face of described integrating rod 40 is provided with material for transformation of wave length, and the Stimulated Light after described integrating rod 104 collects material for transformation of wave length 102 conversion also carries out dodging.Refer to Fig. 2, specifically the integrating rod 104 in the present embodiment is described in detail.In order to further optimize the heat radiation of light light-emitting device, present embodiment also takes cooling measure to integrating rod 104, and the side of the integrating rod 104 in the present embodiment is provided with the first radiator 103.The impact of material on heat radiation of integrating rod 104 is most important, and in the present embodiment, integrating rod 104 preferably uses high heat conduction, high permeability, high temperature resistant material solid bar, the integrating rod of such as sapphire material.Select solid bar for citing present embodiment, certain hollow bar is suitable for this programme equally, and this programme does not limit integrating rod 104 shape.
Collect light as optics integrating rod 104 and dodging is carried out to the light collected, in order to improve light harvesting and even light efficiency rate, between the side of integrating rod 104 and the first radiator 103, reflecting layer is set, this reflecting layer can be clamped in the metallic reflector between integrating rod 104 and the first radiator 103, also can be the reflecting medium film being plated on integrating rod 104 side, light can also be cutd open in the surface that the first radiator 103 contacts with integrating rod 104 and be used as reflecting layer.
The fixed form of the first radiator 103 and integrating rod 104 is below described: the optical property taking into account integrating rod 104 in conjunction with such scheme on the basis of dispelling the heat, the preferred silverskin above-mentioned metallic reflector being selected high reverse--bias, also other reflectivity can be selected high, thermal conductivity is good and be easy to the metallic reflector that welds or the reflecting layer of various metals, and this programme is not limited in silverskin.Silverskin is plated on integrating rod 104 side, the first radiator 103 is weldingly fixed on silverskin.The heat of integrating rod 104 can be transmitted on the first radiator 103 by the heat conductivility efficiently good due to silverskin, is dissipated by the first radiator 103; Meanwhile, the first radiator 103 covered on silverskin by welding can protect silverskin to avoid oxidizing blackening.Aluminium film has higher reflectivity, usually can as the alternate material of silverskin, but aluminium film needs other auxiliary material when welding, and selects nickel to assist and weld the first radiator 103 in present embodiment on aluminium film.First radiator 103 also can be fixed on integrating rod 104 by other location structures, such as can establish the location structures such as the first holding section on the side of integrating rod 104 or two end faces, first radiator 103 extends the second holding section coordinated with the first holding section of integrating rod 104, and the first radiator is fixed on integrating rod with coordinating of the second holding section by holding section, location first.The snap-in structure cooperatively interacted can be located at integrating rod 104 and the dovetail falcon of the first radiator 103 and the fit structure of dovetail groove or arrange concave-convex fit structure on integrating rod 104 end face and the first radiator 103, can be even that the first radiator 103 is fixed on integrating rod 104 by shell ring.Reflecting layer can be set between radiator and integrating rod in such scheme, reflecting layer described above both can be plated on the silverskin of integrating rod side, also can be clamped in other middle metallic reflectors, or with the surface that the first radiator 103 cuing open light contacts with integrating rod 104, or the silverskin be plated on the first radiator or other metallic reflective coatings are as aluminium film, as long as the reflecting layer that can contribute to integrating rod 104 light harvesting and even light can be arranged between integrating rod 104 and the first radiator.
As the material for transformation of wave length (usually selecting fluorescent material) 102 of the critical material of optical conversion element 10, be arranged on the incident end face (definition about incident end face refers to this part first paragraph) of integrating rod 104, hereinafter with fluorescent material statement, in this case, preferably through sintering, fluorescent material 102 is installed in incident end face.The exciting light of this light-emitting device irradiates fluorescent material 102 and produces stimulated luminescence, and the stimulated luminescence that integrating rod 104 pairs of fluorescent material 102 produce collects even light, can directly use from the light of the final outgoing of this integrating rod 104.In order to further meet the needs of different application occasion, dichroic deielectric-coating 101 can be established at fluorescent material 102 away from the surface of incident end face, the anti-Stimulated Light of the saturating exciting light of this deielectric-coating.As described in Figure 2, dichroic deielectric-coating 101 is selected be saturating blue instead other deielectric-coating for citing, this deielectric-coating 101 reflectivity can accomplish more than 99%, the light part that LASER Excited Fluorescence powder 102 produces directly enters integrating rod 104, and another part enters in integrating rod 104 after dichroic deielectric-coating 101 reflects.By the effect of the anti-stimulated luminescence of saturating blue light of deielectric-coating 104, stimulated luminescence more enters integrating rod 104, improves light source utilization rate more greatly.The present inventor is by the discovery that studies for a long period of time, air gap is set between deielectric-coating 101 and fluorescent material 102 and further can improves reflectivity, this programme is provided with air gap to improve the reflectivity at deielectric-coating place at dichroic deielectric-coating and fluorescent material 102, further improves light source utilization rate.
Fig. 5 please be participate in, in such scheme, reflecting layer is set in integrating rod 104 side or air gap is set between deielectric-coating 101 and fluorescent material 102 that integrating rod 104 is as much as possible collects the light beam needed to make, but fluorescent material 102 has certain thickness, the light having part to need may be escaped from the outer peripheral face of fluorescent material 102, cause light loss, the profile of fluorescent material 102 is set as close with integrating rod 104 profile by present embodiment for this reason, usually by the fluorescent material 102 of polishing glass sintering, its profile and integrating rod 104 are adapted, then the reflecting layer of integrating rod 104 side is extended the outer peripheral face covering fluorescent material, the light that so, escape in fluorescent material 102 periphery is also entered integrating rod 104 by reflection, and then effectively utilize, further improve light source utilization rate.This light-emitting device can be applied in the display unit such as projection.
Embodiment 2
The light-emitting device concrete structure of the present embodiment is identical with embodiment 1, and difference is the integrating rod radiator structure in optical conversion element 10, below illustrates.
As everyone knows, fluorescent material 102 produces a large amount of heat when producing exciting light, and at high temperature the luminous efficiency of fluorescent material 102 can sharply decline, and present embodiment arranges the second radiator 203 on the basis of such scheme, the fluorescent material heat dissipation problem further solved.
Fig. 3 please be participate in, integrating rod in the present embodiment is identical with integrating rod in embodiment 1, difference is, being arranged on fluorescent material away from the Stimulated Light reflecting layer on the surface of incident end face side is that total reflection medium film or saturating exciting light reflect the deielectric-coating be stimulated.
As shown in Figure 3, in the present embodiment, integrating rod is the 104, first radiator is 103, and fluorescent material is the 102, second radiator is 203, and the deielectric-coating being arranged on total reflection medium film or the saturating anti-Stimulated Light of exciting light between the second radiator 203 and fluorescent material 102 is 101.With embodiment 1, fluorescent material 102 preferably sinters at incident end face.The deielectric-coating 101 of total reflection medium film or the thoroughly anti-Stimulated Light of exciting light is arranged between the fluorescent material 102 on the second radiator 203 and integrating rod 104.As preferred embodiment, total reflection medium film selects silverskin, and other metallic reflective coatings also can be adopted as aluminium film, and this silverskin is located at fluorescent material 102 surface by plating, and the second heat exchanger 203 is fixed by welding on silverskin 101.Exciting light is entered by the outgoing end face of integrating rod 104, beat on fluorescent material 102, producing a stimulated luminescence part after excitated fluorescent powder 102 directly enters in integrating rod 104, and another part enters in integrating rod 104 after silverskin 101 reflects, and integrating rod 104 is collected Stimulated Light and can directly be used after even light.In the present embodiment, the first radiator 103 is set in integrating rod 104 side, the second radiator 203 is established at fluorescent material 102 lower surface, dispel the heat in the side that integrating rod 104 incident end face is close to by first 103 pairs, radiator integrating rod 104 and fluorescent material 102, second radiator 203 dispels the heat in the side of fluorescent material away from incident end face, radiator directly or indirectly dispels the heat from both direction to fluorescent material 102, heat radiation is better, improves the reliability of system preferably.The light-emitting device of this programme can be applicable to the devices such as projection.
Embodiment 3
Refer to Fig. 4, the difference of the light-emitting device in the present embodiment and embodiment 2 is, integrating rod side does not arrange the first radiator and plating total reflection medium film.In Fig. 4, integrating rod is the 104, second radiator is 203, and fluorescent material is 102, and reflection silverskin is 101, and total reflection medium film is 105.In this programme, the reflectivity of reflecting medium film 105 can accomplish more than 99%, and same reflective deielectric-coating 105 also can be silverskin.Compared with embodiment 2, can improve system effectiveness, the heat of fluorescent material 102 is primarily of the second radiator heat-dissipation welded with silverskin.
Embodiment 4
The luminous device structure of the present embodiment is identical with embodiment 1, difference is that the integrating rod 104 in optical conversion element 10 is also provided with pretreatment portion 5 in light path upstream, should process the light beam be radiated on fluorescent material 102 with handling part 5, can be such as filter, also can be collect even light, the present embodiment is to collect even light, see accompanying drawing 8, pretreatment portion 5 is the integrating rod 501 identical with structure in embodiment 1, fluorescent material 102 is hold between this integrating rod 501 and integrating rod 104, excitation beam after integrating rod 501 excitation beam by even densification, when the light beam irradiation of this even densification is on fluorescent material 102, there is higher conversion efficiency.In order to dispel the heat to the integrating rod 501 serving as pretreatment portion, the periphery of integrating rod is provided with radiator structure, radiator structure on the setting of this radiator structure and integrating rod 104 is similar, equally, can processing mode to integrating rod in reference example 1, the structure of the similar optimizations such as reflecting layer can be set on integrating rod 501.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (13)
1. a light-emitting device, is characterized in that: comprise optical conversion element and drive motors; Described optical conversion element moves under the driving of drive motors, optical conversion element described in predetermined time in the period of motion has at least part to be in predeterminated position, described optical conversion element comprises integrating rod and material for transformation of wave length, and described material for transformation of wave length is located on described integrating rod.
2. light-emitting device according to claim 1, is characterized in that: at least have two independently described optical conversion elements, each described optical conversion element is connected with drive motors each via connecting rod.
3. light-emitting device according to claim 1, it is characterized in that: within the described period of motion, described at least one, optical conversion element is in predeterminated position, or in described motion light period, optical conversion element described at least one has part to be in predeterminated position, or within the described period of motion, the space between optical conversion element is in predeterminated position.
4. the light-emitting device according to any one of claims 1 to 3, it is characterized in that: described integrating rod has side, incident end face and outgoing end face, described material for transformation of wave length is located on the incident end face of integrating rod, and the Stimulated Light after described integrating rod collects material for transformation of wave length conversion also carries out dodging.
5. light-emitting device according to claim 4, is characterized in that: the side at least partially of described integrating rod is provided with the first radiator or/and the one side of described material for transformation of wave length away from described incident end face is provided with the second radiator.
6. light-emitting device according to claim 5, is characterized in that: be provided with reflecting layer between described first radiator and the side of described integrating rod.
7. light-emitting device according to claim 6, it is characterized in that: described reflecting layer is plate the metallic reflector or reflecting medium film that are located on described integrating rod side, or for being clamped in the metallic reflector between integrating rod and the first radiator, or light is cutd open on the surface that the first radiator contacts with integrating rod being used as reflecting layer.
8. light-emitting device according to claim 7, is characterized in that: described metallic reflector is silverskin or aluminium film, is fixed on integrating rod side after described first radiator welds with silverskin; Or arrange welding adjuvant and form pad on described aluminium film, described first radiator is fixed on integrating rod side after being welded with aluminium film by the pad that this welding adjuvant is formed.
9. light-emitting device according to claim 5, is characterized in that: be provided with the deielectric-coating of the anti-Stimulated Light of exciting light at described material for transformation of wave length away from the surface of incident end face; Or be provided with total reflection medium film between described material for transformation of wave length and described second radiator.
10. light-emitting device according to claim 9, is characterized in that: between described material for transformation of wave length and the deielectric-coating of the saturating anti-Stimulated Light of exciting light, be provided with air gap; Or air gap is provided with between described material for transformation of wave length and described total reflection medium film.
11. light-emitting devices according to claim 4, it is characterized in that: the outer peripheral face of described material for transformation of wave length is parallel with the respective side of described integrating rod, at least part of side of described integrating rod is provided with reflecting layer, and described reflecting layer extends and covers the outer peripheral face of material for transformation of wave length.
12. light-emitting devices according to claim 4, it is characterized in that: described optical conversion element also comprises pretreatment portion, described pretreatment portion carries out pretreatment to exciting light, and described material for transformation of wave length is clamped between described pretreatment portion and integrating rod Stimulated Light being carried out to dodging.
13. 1 kinds of projection arrangements, is characterized in that: comprise the light-emitting device described in any one of claim 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567889.7U CN204176562U (en) | 2014-09-29 | 2014-09-29 | Light-emitting device and there is its projection arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420567889.7U CN204176562U (en) | 2014-09-29 | 2014-09-29 | Light-emitting device and there is its projection arrangement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792949A (en) * | 2018-08-01 | 2020-02-14 | 深圳市绎立锐光科技开发有限公司 | Light source system and light emitting device |
| WO2021120716A1 (en) * | 2019-12-16 | 2021-06-24 | 无锡视美乐激光显示科技有限公司 | Wavelength conversion apparatus, light-shadow processing device and light processing method |
| CN115248527A (en) * | 2021-04-26 | 2022-10-28 | 成都极米科技股份有限公司 | Light source device and projection equipment |
-
2014
- 2014-09-29 CN CN201420567889.7U patent/CN204176562U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792949A (en) * | 2018-08-01 | 2020-02-14 | 深圳市绎立锐光科技开发有限公司 | Light source system and light emitting device |
| CN110792949B (en) * | 2018-08-01 | 2022-05-03 | 深圳市绎立锐光科技开发有限公司 | Light source system and light emitting device |
| WO2021120716A1 (en) * | 2019-12-16 | 2021-06-24 | 无锡视美乐激光显示科技有限公司 | Wavelength conversion apparatus, light-shadow processing device and light processing method |
| CN115248527A (en) * | 2021-04-26 | 2022-10-28 | 成都极米科技股份有限公司 | Light source device and projection equipment |
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Effective date of registration: 20171107 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili town tea light road Shenzhen city integrated circuit design and application of Industrial Park 401 Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili town tea light road Shenzhen Industrial Park 401 integrated circuit design and Application Patentee before: YLX Inc. |
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Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Patentee before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address after: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Patentee after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Guangdong province Shenzhen Nanshan District Xili town Cha Guang road Shenzhen integrated circuit design application Industrial Park 401 Patentee before: APPOTRONICS Corp.,Ltd. |
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