CN106125474B - A kind of LED light engine for rear projection concatenation unit - Google Patents
A kind of LED light engine for rear projection concatenation unit Download PDFInfo
- Publication number
- CN106125474B CN106125474B CN201610789212.1A CN201610789212A CN106125474B CN 106125474 B CN106125474 B CN 106125474B CN 201610789212 A CN201610789212 A CN 201610789212A CN 106125474 B CN106125474 B CN 106125474B
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- CN
- China
- Prior art keywords
- light source
- dmd
- group
- source module
- lens
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Classifications
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- 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
-
- 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
- G03B21/142—Adjusting of projection optics
-
- 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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
Abstract
Include shell the invention discloses a kind of LED light engine for rear projection concatenation unit, the shell is equipped with camera lens module, the enclosure is equipped with DMD driving plates, dmd chip, optical channel and light source module group, the dmd chip is connected with DMD driving plates and camera lens module respectively, the light source module group is connect by optical channel with dmd chip, radiator is installed in the light source module group, DMD radiators are installed on the dmd chip.The present invention has also installed radiator additional by installing DMD radiators additional to dmd chip to light source module group, so as to effectively meet cooling requirements, greatly improves the reliability of cooling system, effectively extends the service life of light engine.And the present invention to camera lens module by, using structure of turning back, so as to reduce projection distance, increasing camera lens and being emitted subtended angle, to effectively reduce the framework thickness of complete machine, reduce the volume of complete machine.It the composite can be widely applied in concatenation unit product.
Description
Technical field
The present invention relates to light engine technical field more particularly to a kind of LED lights for rear projection concatenation unit
Learn engine.
Background technology
The light engine that universal DLP concatenation units use at present is direct-injection type camera lens and projection ratio is 0.6:1 or more, make
The thickness of 60 inch of back projection splicing unit also needs to the maintenance space of reserved 500mm to 700mm or more in 700mm or more,
The whole space for occupying 1200mm or more.
But generally there are following disadvantages for existing DLP concatenation units：One, it is that tank thickness is big, erecting bed environment is wanted
It asks high, therefore under the environment such as many space-constrained meeting rooms and small-sized command post, DLP rear-projections cannot be selected, restrict city
The promotion of field occupation rate.Second is that heat dissipation effect is too poor.Third, physical resolution is low, general resolution ratio all only have 1024*768 or
1400*1050, but also only 4:3 image scaled, but command scheduling, safety monitoring, video conference now etc., all
It is the resolution ratio of high definition 1920*1080, originally 4：3 projector cannot meet the development of signal source.
Invention content
In order to solve the above-mentioned technical problem, volume can be reduced the object of the present invention is to provide a kind of, and heat dissipation effect is preferable
A kind of LED light engine for rear projection concatenation unit.
The technical solution used in the present invention is：
A kind of LED light engine for rear projection concatenation unit, including shell, the shell are equipped with camera lens mould
Group, the enclosure are equipped with DMD driving plates, dmd chip, optical channel and light source module group, and the dmd chip drives with DMD respectively
Movable plate is connected with camera lens module, and the light source module group is connect by optical channel with dmd chip, is equipped in the light source module group
Radiator is equipped with DMD radiators on the dmd chip, and the shell is being equipped with air inlet close to the side of dmd chip,
The shell is being equipped with air outlet close to the side of light source module group.
As a further improvement on the present invention, the camera lens module is using structure of turning back, specifically by being used for from dmd chip
The focusing group, reflection group and the front group for being emitted projection for accessing incident light are constituted, described to reflect the light for being mounted on focusing group
The point of intersection of axis and the optical axis of front group.
As a further improvement on the present invention, the focusing group along optical axis from incident direction successively by balsaming lens, just thoroughly
Mirror, balsaming lens, balsaming lens, positive lens and balsaming lens composition, the reflection group are speculum, and the front group is along optical axis
It is made of successively positive lens, negative lens and aspherical mirror from exit direction.
As a further improvement on the present invention, the air outlet is equipped with radiator fan.
As a further improvement on the present invention, the light source module group includes blue-light source module, red light source module and green
Coloured light source module.
As a further improvement on the present invention, the radiator includes heat conducting pipe and radiating fin.
The beneficial effects of the invention are as follows：
A kind of LED light engine for rear projection concatenation unit of the invention to dmd chip by installing DMD heat dissipations additional
Device, and radiator has also been installed additional to light source module group, so as to effectively meet cooling requirements, greatly improve the reliable of cooling system
Property, effectively extend the service life of light engine.And the present invention by camera lens module using turning back structure, so as to reduce
Projection distance increases camera lens and is emitted subtended angle, to effectively reduce the framework thickness of complete machine, reduces the volume of complete machine.
Description of the drawings
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural schematic diagram of LED light engine for rear projection concatenation unit of the invention；
Fig. 2 is a kind of internal structure schematic diagram of LED light engine for rear projection concatenation unit of the invention；
Fig. 3 is a kind of appearance diagram of LED light engine for rear projection concatenation unit of the invention；
Fig. 4 is that the structure of optics module in a kind of LED light engine for rear projection concatenation unit of the invention is shown
It is intended to.
Specific implementation mode
With reference to 1~Fig. 4 of figure, a kind of LED light engine for rear projection concatenation unit of the invention, including shell 1,
The shell 1 is equipped with camera lens module 2, and the shell 1 is internally provided with DMD driving plates 3, dmd chip 4, optical channel 5 and light source die
Group 6, the dmd chip 4 is connected with DMD driving plates 3 and camera lens module 2 respectively, the light source module group 6 by optical channel 5 with
Dmd chip 4 connects, and is equipped with radiator 7 in the light source module group 6, DMD radiators 8, institute are equipped on the dmd chip 4
It states shell 1 and is being equipped with air inlet 11 close to the side of dmd chip 4, the shell 1 is equipped with out close to the side of light source module group 6
Air port 12.
It is further used as preferred embodiment, the camera lens module 2 is using structure of turning back, specifically by being used for from DMD
The focusing group 21, reflection group 22 and the front group 23 for being emitted projection that chip 4 accesses incident light are constituted, and the reflection group 22 is set
In the point of intersection of the optical axis of the optical axis and front group 23 of focusing group 21.
It is further used as preferred embodiment, the focusing group 21 is along optical axis from incident direction successively by balsaming lens
201, positive lens 202, balsaming lens 203, balsaming lens 204, positive lens 205 and balsaming lens 206 form, the reflection group 22
For speculum 207, the front group 23 is along optical axis from exit direction successively by positive lens 208, negative lens 209 and aspherical mirror
210 compositions.
It is further used as preferred embodiment, the air outlet 12 is equipped with radiator fan 13.
Be further used as preferred embodiment, the light source module group 6 include blue-light source module, red light source module and
Green light source module.
It is further used as preferred embodiment, the radiator 7 includes heat conducting pipe and radiating fin, passes through radiation air
Radiating fin volume, the shape of 13 pairs of light source module groups 6 of fan calculate, and ensure light source module group 6（R G B) the specification that meets want
It asks, 150 DEG C of 125 DEG C of R <, G <, 150 DEG C of B <.Also ensure the temperature requirement of dmd chip 4 simultaneously.
In the embodiment of the present invention, optical parameter that the camera lens module 2 uses for：F#:1.9, focal length：7.4mm, rear coke
According to：30.7093mm, field of view edge loss < 30%, projection ratio：0.428:1.Therefore the performance of camera lens determines the thickness of concatenation unit
Degree size can be controlled in 460mm or less.
Camera lens module 2 forms as follows in the present embodiment：
201 centers radius R1=85.73mm, R2=32.36mm, R3=51.6mm thickness D=6.5mm airspace d of balsaming lens
=0.7mm；
Positive lens 202 radius R1=66.25mm, R2=54.44mm, the center airspaces thickness D=8.3mm d=1mm；
203 centers radius R1=41.7mm, R2=50mm, R3=46.6mm thickness D=6mm airspace d of balsaming lens=
4.1mm；
204 centers radius R1=97.1mm, R2=28.7mm, R3=46.87mm thickness D=10.2mm airspace d of balsaming lens
=34.3mm；
Positive lens 205 radius R1=124.19mm, R2=20.6mm, the center airspaces thickness D=7.8mm d=34.3mm；
206 centers radius R1=34.66mm, R2=67.5mm, R3=59mm thickness D=8mm airspace d of balsaming lens=
62mm；
207 125 ° of thickness D=8mm. angles of speculum；
Positive lens 208 radius R1=37mm, R2=25.32mm, the center airspaces thickness D=8.2mm d=17.6mm；
Negative lens 209 radius R1=28.63mm, R2=62.47mm, the center airspaces thickness D=8mm d=16.7mm；
210 R1 of the aspherical mirror=K=- 0.4859 of R2=1/35.934 of ASP C=1/52.149K=1.0015 center thickness D=
6.9mm。
In the present embodiment, light engine collect folk songs it is cold radiate, entered the wind first from air inlet 11, by dmd chip 4, this
Element pastes DMD radiators 8 by the back of the body（68mm*54mm*17mm), make temperature control at 50 ° hereinafter, 8 temperature of DMD radiators controls
At 40 degree hereinafter, meeting the specification requirement that 4 test point of dmd chip is less than 65 degree.The distinguished and admirable arrival light source module group 6 of cooling requirements, it is blue
Tooth light source module and red light source module use the heat conducting pipe of φ 8mm, volume for 82mm*68mm*59mm radiating fins.Green light
Use heat conducting pipe, the volume of φ 8mm for 140mm*66mm*57mm radiating fins at source module, be equipped at air outlet 12 there are two
Axial cooling fan 13 makes the red of light source module group 6, the knot of green, blue-light source to 12 exhausting of air outlet by radiating fin
Temperature control system is at 100 ° hereinafter, meeting 125 DEG C of the cooling requirements R < of light source, 150 DEG C of 150 DEG C of G <, B <.
It is to be illustrated to the preferable implementation of the present invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (4)
1. a kind of LED light engine for rear projection concatenation unit, it is characterised in that：Including shell, on the shell
Equipped with camera lens module, the enclosure is equipped with DMD driving plates, dmd chip, optical channel and light source module group, the dmd chip point
It is not connected with DMD driving plates and camera lens module, the light source module group is connect by optical channel with dmd chip, the light source die
Radiator is installed in group, DMD radiators are installed on the dmd chip, the shell is set in the side close to dmd chip
There are air inlet, the shell being equipped with air outlet close to the side of light source module group；
The camera lens module using structure of turning back, specifically by for accessing incident light from dmd chip focusing group, reflection group and
Front group for being emitted projection is constituted, the point of intersection of the optical axis for reflecting the optical axis and front group that are mounted on focusing group；
The focusing group is along optical axis from incident direction successively by the first balsaming lens, the first positive lens, the second balsaming lens, third
Balsaming lens, the second positive lens and the 4th balsaming lens composition, the reflection group are speculum, and the front group is along optical axis from going out
Direction is penetrated to be made of third positive lens, negative lens and aspherical mirror successively；
The parameter of first balsaming lens is：Radius R1=85.73mm, R2=32.36mm, R3=51.6mm, center thickness D=
6.5mm, airspace d=0.7mm；
The parameter of first positive lens is：Radius R1=66.25mm, R2=54.44mm, center thickness D=8.3mm, airspace d=
1mm；
The parameter of second balsaming lens is：Radius R1=41.7mm, R2=50mm, R3=46.6mm, center thickness D=6mm are empty
Gas interval d=4.1mm；
The parameter of third balsaming lens is：Radius R1=97.1mm, R2=28.7mm, R3=46.87mm, center thickness D=
10.2mm, airspace d=34.3mm；
The parameter of second positive lens is：Radius R1=124.19mm, R2=20.6mm, center thickness D=7.8mm, airspace d
=34.3mm；
The parameter of 4th balsaming lens is：Radius R1=34.66mm, R2=67.5mm, R3=59mm, center thickness D=8mm are empty
Gas interval d=62mm；
The parameter of speculum is：Thickness D=8mm, angle are 125 °；
The parameter of third positive lens is：Radius R1=37mm, R2=25.32mm, center thickness D=8.2mm, airspace d=
17.6mm；
The parameter of negative lens is：Radius R1=28.63mm, R2=62.47mm, center thickness D=8mm, airspace d=
16.7mm；
The parameter of aspherical mirror is：R1=ASP, C=1/52.149, K=1.0015；R2=1/35.934, K=-0.4859, in
Heart thickness D=6.9mm.
2. a kind of LED light engine for rear projection concatenation unit according to claim 1, it is characterised in that：
The air outlet is equipped with radiator fan.
3. a kind of LED light engine for rear projection concatenation unit according to claim 1, it is characterised in that：
The light source module group includes blue-light source module, red light source module and green light source module.
4. a kind of LED light engine for rear projection concatenation unit according to claim 1, it is characterised in that：
The radiator includes heat conducting pipe and radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789212.1A CN106125474B (en) | 2016-08-31 | 2016-08-31 | A kind of LED light engine for rear projection concatenation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789212.1A CN106125474B (en) | 2016-08-31 | 2016-08-31 | A kind of LED light engine for rear projection concatenation unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106125474A CN106125474A (en) | 2016-11-16 |
| CN106125474B true CN106125474B (en) | 2018-10-23 |
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ID=57273522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610789212.1A Active CN106125474B (en) | 2016-08-31 | 2016-08-31 | A kind of LED light engine for rear projection concatenation unit |
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| Country | Link |
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| CN (1) | CN106125474B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811475B (en) * | 2018-09-07 | 2024-04-16 | 埃视森智能科技(上海)有限公司 | Heat dissipation air ducting of grating type 3D vision positioning system |
| CN111856855B (en) * | 2019-04-29 | 2022-02-22 | 中强光电股份有限公司 | Optical machine module and projector |
| CN115639716A (en) * | 2021-07-19 | 2023-01-24 | 中强光电股份有限公司 | Projector and light source module thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003186110A (en) * | 2001-12-21 | 2003-07-03 | Nec Viewtechnology Ltd | Led illumination dmd projector and optical system therefor |
| KR100628726B1 (en) * | 2005-07-26 | 2006-09-28 | 삼성전자주식회사 | Image protecting apparatus |
| CN101131531A (en) * | 2006-08-22 | 2008-02-27 | 普立尔科技股份有限公司 | Projector with laser LED as its light source and light source device thereof |
| JP5130902B2 (en) * | 2007-12-21 | 2013-01-30 | セイコーエプソン株式会社 | projector |
| TWI376561B (en) * | 2008-09-12 | 2012-11-11 | Hon Hai Prec Ind Co Ltd | Projector structure |
| CN101963743B (en) * | 2009-07-24 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Projector |
| CN202995234U (en) * | 2012-10-15 | 2013-06-12 | 芜湖雅图数字视频技术有限公司 | Irradiation position adjustable projector |
| CN103838067A (en) * | 2012-11-26 | 2014-06-04 | 鸿富锦精密工业（深圳）有限公司 | Projector cooling device |
| CN204009207U (en) * | 2014-04-13 | 2014-12-10 | 浙江舜宇光学有限公司 | 3D interactive projection camera lens |
| CN206057779U (en) * | 2016-08-31 | 2017-03-29 | 广州市赛普电子科技有限公司 | A kind of LED light engine for rear projection concatenation unit |
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2016
- 2016-08-31 CN CN201610789212.1A patent/CN106125474B/en active Active
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| CN106125474A (en) | 2016-11-16 |
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