CN109669313A - Projector - Google Patents
Projector Download PDFInfo
- Publication number
- CN109669313A CN109669313A CN201811264810.2A CN201811264810A CN109669313A CN 109669313 A CN109669313 A CN 109669313A CN 201811264810 A CN201811264810 A CN 201811264810A CN 109669313 A CN109669313 A CN 109669313A
- Authority
- CN
- China
- Prior art keywords
- heat
- projector
- sink unit
- radiating fin
- heating element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 230000017525 heat dissipation Effects 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010010 raising Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention provides a kind of projector, comprising: first heating element；It is distinguished and admirable to radiate to the first heating element to form first for first heat-sink unit；And second heat-sink unit, to absorb the heat of the first heating element；Wherein, this first it is distinguished and admirable can via the first heating element to second heat-sink unit with to second heat-sink unit radiate.Projector of the invention simultaneously radiates to heater element using the first heat-sink unit and the second heat-sink unit, improves heat dissipation effect, while simplifying the structure of projector, reduces the volume of projector.
Description
Technical field
The present invention relates to projection field more particularly to a kind of projectors.
Background technique
Projector is a kind of common projection device, is widely used in classroom, cinema, office meeting room etc..
Existing projector generally has the heater elements such as laser source (i.e. laser apparatus), fluorescence colour wheel, the list that laser source issues
The light beam of one color is transformed into the light beam of different colours by iridescent wheel.However, due to the laser energy of laser source sending
(i.e. luminous energy) is higher, and luminous energy is easily converted into thermal energy, causes the temperature of the heater elements such as laser source, fluorescence colour wheel higher, and warm
The high service life that will affect projector is spent, in order to solve this problem, existing projector typically directly sets in ray machine
Multiple fan coolings are set, the air-flow that fan generates directly blows to heater element, and heat dissipation effect is poor, therefore, it is necessary to propose one
New projector is planted to solve the above problems.
Summary of the invention
In view of the problems of the prior art, the purpose of the present invention is to provide a kind of projector, good heat dissipation effects.
In order to achieve the above object, the present invention proposes a kind of projector, which includes:
First heating element；
It is distinguished and admirable to radiate to the first heating element to form first for first heat-sink unit；And
Second heat-sink unit, to absorb the heat of the first heating element；
Wherein, this first it is distinguished and admirable can be via the first heating element to second heat-sink unit with single to second heat dissipation
Member heat dissipation.
Alternatively, which is fluorescence colour wheel or laser apparatus.
Alternatively, which further includes optical engine case, be arranged inside the optical engine case fluorescence colour wheel or
The laser apparatus.
The present invention also proposes a kind of projector, comprising:
First heating element；
Second heatiing element；
It is distinguished and admirable to radiate to the first heating element to form first for first heat-sink unit；And
Second heat-sink unit, to absorb the heat of the second heatiing element；
Wherein, this first it is distinguished and admirable can be via the first heating element to second heat-sink unit with single to second heat dissipation
Member heat dissipation.
Alternatively, which is one of laser apparatus and fluorescence colour wheel, second hair
Thermal element is the wherein another of the laser apparatus and the fluorescence colour wheel.
Alternatively, which further includes optical engine case, and the fluorescence colour wheel is arranged inside the optical engine case,
The laser apparatus is set outside the optical engine case, and the laser apparatus is close to the optical engine case.
Alternatively, air duct or first heat-sink unit are formed with inside the optical engine case includes air duct, should
The optical engine case is run through in air duct, which has air inlet and air outlet, which is equipped with and forms the first distinguished and admirable fan
Or the air inlet connects to form the first distinguished and admirable air compressor, which is arranged towards second heat-sink unit.
Alternatively, on the optical engine case have first through hole and the second through-hole, the air inlet close to this first
Through-hole setting, the air outlet are arranged close to second through-hole.
Alternatively, which further includes the first radiating fin, which is set to
On the air duct；Second heat-sink unit further includes the second radiating fin, which is set on the laser apparatus,
The air outlet face second radiating fin；Wherein, which absorbs the fluorescence colour wheel in the optical engine case
Heat, second radiating fin absorb the heat of the laser apparatus, first distinguished and admirable absorption first heat radiating fin in the air duct
The heat of piece is radiated with realizing to the fluorescence colour wheel, keeps second radiating fin all after the first distinguished and admirable outflow from the air outlet
The air velocity on side increases, and increases the radiating rate of second radiating fin to realize and radiate to the laser apparatus.
Alternatively, which has multiple, and all first radiating fins are laterally arranged side by side
Column, the distance between each adjacent two first radiating fin are equal；Second radiating fin have it is multiple, it is all this second
Radiating fin transverse direction arranged in parallel, the distance between each adjacent two second radiating fin are equal.
Alternatively, which includes air hose, which is linear type tubular body or flexure type tubular body；
The air hose is made of metal material, which includes copper.
Compared with prior art, projector of the invention utilizes the first heat-sink unit and the second heat-sink unit to hair simultaneously
Thermal element radiates, and improves heat dissipation effect.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 100 first embodiment of projector of the invention；
Fig. 2 is the structural schematic diagram of 101 second embodiment of projector of the invention.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment detailed
It is described as follows.
As shown in FIG. 1, FIG. 1 is the structural schematic diagram of 100 first embodiment of projector of the invention, projections of the invention
Machine 100 includes first heating element 1, the first heat-sink unit 2 and the second heat-sink unit 3, and the first heat-sink unit 2 is used to form the
One is distinguished and admirable to radiate to first heating element 1, and the second heat-sink unit 3 is used to absorb the heat of first heating element 1, wherein the
One it is distinguished and admirable can via 1 to the second heat-sink unit 3 of first heating element with to the second heat-sink unit 3 radiate.
In the present invention, first heating element 1 is fluorescence colour wheel or laser apparatus, in practical application, throwing of the invention
Shadow machine 100 further includes optical engine case 4 and air duct 5, and first heating element 1 is arranged inside optical engine case 4, has on optical engine case 4
First through hole and the second through-hole；Air duct 5 passes through first through hole and the second through-hole, and air duct 5 can be by 4 internal arrangement of optical engine case
Component structure between gap formed, air hose can also be directlyed adopt.Air duct 5 has air inlet 51 and air outlet 52, wherein
Air inlet 51 is close to first through hole, and air outlet 52 is close to the second through-hole, and air outlet 52 is arranged towards the second heat-sink unit 3, into
Air port 51 can choose setting fan 6, also can choose connection air compressor, fan 6 can make air from air inlet 51 into
Formed in air inlet duct 5 it is first distinguished and admirable, air compressor pressure-air can be injected in air duct 5 formed it is first distinguished and admirable, in this implementation
In example, fan 6 is arranged to reduce cost in air inlet 51.
When air duct 5 is using air hose, air hose absorbs the using the preferable metal material production of heat conductivity, convenient for air hose
The heat of one heater element 1.In the present embodiment, air hose using copper make, in practical application, air hose can also using aluminium,
The production such as iron, is not limited thereto.
In addition, the shape of air hose can be designed to linear type tubular body or flexure type tubular body according to actual needs.?
In the case where the given volume of optical engine case 4, when the shape of air hose is linear type tubular body, air hose is located in optical engine case 4
Volume it is relatively small, and path is shorter, can save the space inside optical engine case 4, in order to have foot in optical engine case 4
Place other components in enough spaces；When the shape of air hose is flexure type tubular body, air hose is located at the body in optical engine case 4
Product is relatively large, and path is longer, and air hose is larger in the surface area in optical engine case 4, can increase the heat-conducting effect of air hose.
When formation first is distinguished and admirable in air duct 5, the heat in the first distinguished and admirable absorbable air duct 5, air duct 5 absorbs optical engine case 4
Interior heat, i.e., the first distinguished and admirable heat that can be inhaled in optical engine case 4 by air duct 5 dissipate to realize to first heating element 1
Heat can be such that the air velocity on 3 periphery of the second heat-sink unit accelerates, accelerate the second heat dissipation after the first distinguished and admirable outflow from air outlet 52
The heat-conducting effect of unit 3, to further radiate to first heating element 1.It can be seen that projector 100 of the invention is simultaneously
It is radiated using the first heat-sink unit 2 and the second heat-sink unit 3 to first heating element 1, and 6 He of fan is only set
The first heat-sink unit 2 and the second heat-sink unit 3 can be improved to the heat dissipation effect of first heating element 1 in one air duct 5, is protecting
The structure of projector 100 is also simplified under the premise of card heat dissipation effect, therefore reduces the volume of projector 100 simultaneously.
In the present invention, the first heat-sink unit 2 includes the first radiating fin 21, and the first radiating fin 21 is set to air duct 5
On；Second heat-sink unit 3 includes the second radiating fin 31, and the second radiating fin 31 is set on the outer wall of optical engine case 4, out
52 the second radiating fin of face 31 of air port；In first radiating fin 21 and the absorbable optical engine case 4 of the second radiating fin 31
Heat (i.e. absorption first heating element 1 is distributed to the heat in optical engine case 4), first is distinguished and admirable scattered by the absorption of air duct 5 first
The heat of hot fin 21 is radiated with realizing to first heating element 1, makes the second heat radiating fin after the first distinguished and admirable outflow from air outlet 52
The air velocity on 31 periphery of piece increases, and increases the heat-transfer rate of the second radiating fin 31 to realize further to the first fever member
Part 1 radiates.
In addition, the first radiating fin 21 has multiple, the lateral arranged in parallel of all first radiating fins 21, per adjacent two
The distance between a first radiating fin 21 is equal；Second radiating fin 31 has multiple, all second radiating fins, 31 transverse directions
Arranged in parallel, the distance between second radiating fin of each adjacent two 31 are equal.This structure design can be in a limited space
Under keep the surface area of the second radiating fin 31 and the first radiating fin 21 bigger, thus promoted the second radiating fin 31 and first
The effect of the conduction heat of radiating fin 21.
As shown in Fig. 2, Fig. 2 is the structural schematic diagram of 101 second embodiment of projector of the invention, projection of the invention
Machine 101 includes first heating element 1 ', second heatiing element 6 ', the first heat-sink unit 2 ' and the second heat-sink unit 3 ', wherein
It is distinguished and admirable with to the heat dissipation of first heating element 1 ', the second heat-sink unit 3 ' is for absorbing that first heat-sink unit 2 ' is used to form first
The heat of second heatiing element 6 ', first it is distinguished and admirable can via first heating element 1 ' to the second heat-sink unit 3 ' with to second dissipate
Hot cell 3 ' radiates.
The difference of second embodiment and first embodiment is only that: first heating element 1 ' is laser apparatus and iridescent
One of wheel, second heatiing element 6 ' are the wherein another of laser apparatus and fluorescence colour wheel, are with first heating element 1 '
Fluorescence colour wheel, second heatiing element 6 ' is for laser apparatus, the internal setting fluorescence colour wheel 11 ' of optical engine case 4 ' are with raisings pair
The dust-proof effect of fluorescence colour wheel 11 ', the external setting laser apparatus 61 ' of optical engine case 4 ' is to improve the heat dissipation to laser apparatus 61 '
Effect, laser apparatus 61 ' is close to optical engine case 4 '.
When formation first is distinguished and admirable in air duct 5 ', the first distinguished and admirable heat for absorbing air duct 5 ', air duct 5 ' absorbs the first heat dissipation
The heat of fin 21 ', the first radiating fin 21 ' absorbs the heat in optical engine case 4 ', and the heat of fluorescence colour wheel 11 ' distributes
To in optical engine case 4 ', i.e., first distinguished and admirable can give the heat dissipation of fluorescence colour wheel 11 ' by air duct 5 ' and the first radiating fin 21 '；First
The second radiating fin 31 ' is directly blowed to after the distinguished and admirable outflow from air outlet 52 ', the air stream on 31 ' periphery of the second radiating fin can be made
Speed is accelerated, thus make the second radiating fin 31 ' by heat Quick diffusing into air, 31 ' rapid cooling of the second radiating fin
It can accelerate to absorb heat to laser apparatus 61 ' simultaneously, and then realize and give laser apparatus 61 ' rapid cooling.
In conclusion projector 101 of the invention first heating element 1 ' is carried out using the first heat-sink unit 2 ' it is scattered
Heat radiates to second heatiing element 6 ' using the second heat-sink unit 3 ', and a fan 6 ' and an air duct 5 ' is only arranged
3 ' heat dissipation effect of the first heat-sink unit 2 ' and the second heat-sink unit can be improved, also simplify under the premise of guaranteeing heat dissipation effect
The structure of projector 101 reduces the volume of projector 101.
By the above detailed description of preferred embodiments, it is intended to more clearly describe feature and spirit of the invention,
And not protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its purpose
It is intended to cover various changes and has being arranged in the scope of protection of the claims of the invention to be applied of equality.
Therefore, scope of protection of the claims of the invention should illustrate the most wide explanation of work according to above-mentioned, to cause it to cover
All possible change and the arrangement of tool equality.
Claims (11)
1. a kind of projector characterized by comprising
First heating element；
It is distinguished and admirable to radiate to the first heating element to form first for first heat-sink unit；And
Second heat-sink unit, to absorb the heat of the first heating element；
Wherein, this first it is distinguished and admirable can via the first heating element to second heat-sink unit with to second heat-sink unit dissipate
Heat.
2. projector as described in claim 1, which is characterized in that the first heating element is fluorescence colour wheel or laser apparatus.
3. projector as claimed in claim 2, which is characterized in that the projector further includes optical engine case, in the optical engine case
The fluorescence colour wheel or the laser apparatus is arranged in portion.
4. a kind of projector characterized by comprising
First heating element；
Second heatiing element；
It is distinguished and admirable to radiate to the first heating element to form first for first heat-sink unit；And
Second heat-sink unit, to absorb the heat of the second heatiing element；
Wherein, this first it is distinguished and admirable can via the first heating element to second heat-sink unit with to second heat-sink unit dissipate
Heat.
5. projector as claimed in claim 4, which is characterized in that the first heating element is laser apparatus and fluorescence colour wheel
One of them, which is the wherein another of the laser apparatus and the fluorescence colour wheel.
6. projector as claimed in claim 5, which is characterized in that the projector further includes optical engine case, in the optical engine case
Portion is arranged the fluorescence colour wheel, is arranged the laser apparatus outside the optical engine case, and the laser apparatus is close to the optical engine case.
7. the projector as described in claim 3 or 6, which is characterized in that be formed with inside the optical engine case air duct or this
One heat-sink unit includes air duct, which runs through the optical engine case, which has air inlet and air outlet, which is equipped with
It forms the first distinguished and admirable fan or the air inlet to connect to form the first distinguished and admirable air compressor, air outlet direction should
The setting of second heat-sink unit.
8. projector as claimed in claim 7, which is characterized in that there is first through hole and the second through-hole on the optical engine case,
The air inlet is arranged close to the first through hole, which is arranged close to second through-hole.
9. projector as claimed in claim 7, which is characterized in that first heat-sink unit further includes the first radiating fin, should
First radiating fin is set on the air duct；Second heat-sink unit further includes the second radiating fin, which sets
It is placed on the laser apparatus, the air outlet face second radiating fin；
Wherein, which absorbs the heat of the fluorescence colour wheel in the optical engine case, which absorbs
The heat of the laser apparatus, the first distinguished and admirable heat for absorbing first radiating fin in the air duct give the iridescent to realize
Wheel heat dissipation increases the air velocity on the second radiating fin periphery after the first distinguished and admirable outflow from the air outlet, increase this
The radiating rate of two radiating fins is radiated with realizing to the laser apparatus.
10. projector as claimed in claim 7, which is characterized in that first radiating fin have it is multiple, it is all this first dissipate
Hot fin transverse direction arranged in parallel, the distance between each adjacent two first radiating fin are equal；Second radiating fin has
Multiple, all second radiating fin transverse direction arranged in parallel, the distance between each adjacent two second radiating fin is equal.
11. projector as claimed in claim 7, which is characterized in that the air duct includes air hose, which is linear type tubular body
Or flexure type tubular body；The air hose is made of metal material, which includes copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264810.2A CN109669313B (en) | 2018-10-29 | 2018-10-29 | Projector with a light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264810.2A CN109669313B (en) | 2018-10-29 | 2018-10-29 | Projector with a light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109669313A true CN109669313A (en) | 2019-04-23 |
| CN109669313B CN109669313B (en) | 2021-08-20 |
Family
ID=66142433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811264810.2A Expired - Fee Related CN109669313B (en) | 2018-10-29 | 2018-10-29 | Projector with a light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109669313B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2542554A1 (en) * | 1983-03-12 | 1984-09-14 | Loh Rittal Werk Gmbh Co | HEATING APPARATUS, IN PARTICULAR FOR SWITCH CABINETS |
| JP2003241315A (en) * | 2002-02-21 | 2003-08-27 | Sony Corp | Projection type display device |
| JP2005062376A (en) * | 2003-08-11 | 2005-03-10 | Plus Vision Corp | Light source unit and projector employing same |
| CN101135837A (en) * | 2006-08-31 | 2008-03-05 | 精工爱普生株式会社 | Projector |
| CN101373315A (en) * | 2007-08-21 | 2009-02-25 | 佳世达科技股份有限公司 | Projector and method for cooling light source module discharging part |
| CN101377613A (en) * | 2007-08-31 | 2009-03-04 | 佳世达科技股份有限公司 | Projection device and heat radiation method |
| CN101620368A (en) * | 2008-07-04 | 2010-01-06 | 富准精密工业(深圳)有限公司 | Projector with cooling system |
| CN101963743A (en) * | 2009-07-24 | 2011-02-02 | 鸿富锦精密工业（深圳）有限公司 | Projector |
| JP2012212067A (en) * | 2011-03-31 | 2012-11-01 | Sanyo Electric Co Ltd | Projection image display device |
| CN203365896U (en) * | 2013-07-24 | 2013-12-25 | 台达电子工业股份有限公司 | Optical assembly applied to laser projector |
| CN203587951U (en) * | 2013-11-07 | 2014-05-07 | 芜湖安曼特微显示科技有限公司 | Heat dissipation device of digital micromirror device |
| CN204014394U (en) * | 2014-08-12 | 2014-12-10 | 广州爱莱灯光设备有限公司 | Novel air duct formula heat-exchanger rig |
| US20150043226A1 (en) * | 2012-05-03 | 2015-02-12 | Sunonwealth Electric Machine Industry Co., Ltd. | Lamp |
| CN107678233A (en) * | 2016-08-01 | 2018-02-09 | 深圳市光峰光电技术有限公司 | A kind of colour wheel module, light-source system and optical projection system |
| CN207249336U (en) * | 2017-09-06 | 2018-04-17 | 深圳市信方达科技发展股份有限公司 | Projecting apparatus with radiator structure |
| CN207281449U (en) * | 2017-09-30 | 2018-04-27 | 深圳市八达威科技有限公司 | A kind of micro projector radiator structure |
-
2018
- 2018-10-29 CN CN201811264810.2A patent/CN109669313B/en not_active Expired - Fee Related
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2542554A1 (en) * | 1983-03-12 | 1984-09-14 | Loh Rittal Werk Gmbh Co | HEATING APPARATUS, IN PARTICULAR FOR SWITCH CABINETS |
| JP2003241315A (en) * | 2002-02-21 | 2003-08-27 | Sony Corp | Projection type display device |
| JP2005062376A (en) * | 2003-08-11 | 2005-03-10 | Plus Vision Corp | Light source unit and projector employing same |
| CN101135837A (en) * | 2006-08-31 | 2008-03-05 | 精工爱普生株式会社 | Projector |
| CN101373315A (en) * | 2007-08-21 | 2009-02-25 | 佳世达科技股份有限公司 | Projector and method for cooling light source module discharging part |
| CN101377613A (en) * | 2007-08-31 | 2009-03-04 | 佳世达科技股份有限公司 | Projection device and heat radiation method |
| CN101620368A (en) * | 2008-07-04 | 2010-01-06 | 富准精密工业(深圳)有限公司 | Projector with cooling system |
| CN101963743A (en) * | 2009-07-24 | 2011-02-02 | 鸿富锦精密工业（深圳）有限公司 | Projector |
| JP2012212067A (en) * | 2011-03-31 | 2012-11-01 | Sanyo Electric Co Ltd | Projection image display device |
| US20150043226A1 (en) * | 2012-05-03 | 2015-02-12 | Sunonwealth Electric Machine Industry Co., Ltd. | Lamp |
| CN203365896U (en) * | 2013-07-24 | 2013-12-25 | 台达电子工业股份有限公司 | Optical assembly applied to laser projector |
| CN203587951U (en) * | 2013-11-07 | 2014-05-07 | 芜湖安曼特微显示科技有限公司 | Heat dissipation device of digital micromirror device |
| CN204014394U (en) * | 2014-08-12 | 2014-12-10 | 广州爱莱灯光设备有限公司 | Novel air duct formula heat-exchanger rig |
| CN107678233A (en) * | 2016-08-01 | 2018-02-09 | 深圳市光峰光电技术有限公司 | A kind of colour wheel module, light-source system and optical projection system |
| CN207249336U (en) * | 2017-09-06 | 2018-04-17 | 深圳市信方达科技发展股份有限公司 | Projecting apparatus with radiator structure |
| CN207281449U (en) * | 2017-09-30 | 2018-04-27 | 深圳市八达威科技有限公司 | A kind of micro projector radiator structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109669313B (en) | 2021-08-20 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210820 |