CN208110243U - DLP optical projection apparatus - Google Patents
DLP optical projection apparatus Download PDFInfo
- Publication number
- CN208110243U CN208110243U CN201721857628.9U CN201721857628U CN208110243U CN 208110243 U CN208110243 U CN 208110243U CN 201721857628 U CN201721857628 U CN 201721857628U CN 208110243 U CN208110243 U CN 208110243U
- Authority
- CN
- China
- Prior art keywords
- radiator
- light source
- radiator fan
- projection
- dmd
- 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.)
- Active
Links
Landscapes
- Projection Apparatus (AREA)
Abstract
The utility model discloses a kind of DLP optical projection apparatus, including Projection box, DMD mainboard and light source are provided in the Projection box, the radiator of the promising DMD mainboard of installation and light source heat radiation in the Projection box, the side of the Projection box, which covers, is provided with the first radiator fan, the other side of the Projection box, which covers, is provided with the second radiator fan, and the air of the first radiator fan sucking is discharged after radiator carries out heat exchange by the second radiator fan.The utility model have the advantages that it is compact-sized, can radiate to greatest extent.
Description
Technical field
The utility model relates to projection device, especially a kind of compact-sized, the DLP light that can radiate to greatest extent
Learn projection arrangement.
Background technique
Digitlization optical processing technique (Digital Lighting Processing, DLP) is a kind of novel digital projection
Display technology.Applied chip DMD is researched and developed by American TI Company, main to control light projection with reflecting mirror
Principle projects image, is taken the lead in the eighties when being applied to commercialization by TI company, it is high digital of reliability
Display technology commercially can be in various product (such as large screen DTV, company/family/specialized conference projector sum number
Code camera (DLP Cinema)) in optimized image effect is provided, and industrially, since the High Reflective Surface of DMD can be by disappearing
It is reflected on screen except the obstacle in optical path and by more light, and the light source of projector is maximumlly utilized, thus
The acutance of image is kept, and ensures the lifelike reproduction of original image, to inversely restore projection using this projection image
The 3D model on surface.Even to this day, DMD has many advantages, such as high resolution, and signal is not necessarily to digital-to-analogue conversion, and the sixth of the twelve Earthly Branches through being answered extensively now
For each display field, such as 3D AOI, 3D printer, back projection TV, projector etc..In terms of light source, it is being based on 6500DMD core
Above the high-resolution optical projection apparatus such as piece, DLP since brightness, intensity to light source etc. is more demanding, whether based on
Ultrahigh pressure mercury lamp (UHP) or LED light or laser, the heat of light source is all bigger, projects on dmd chip in addition
Face, chip also have heat, in order to which heat to be distributed to the comparison more preferable, most of producer all designs DLP projection arrangement
Greatly, it is conducive to heat dissipation, and the volume of DLP becomes larger, and is unfavorable for industrial installation application.And part of the manufacturer in order to reduce due to heat dissipation
Caused volume becomes larger, and using the light conduction of optical fiber, light emitting source is placed on to the lower section of machine, but the shortcomings that such measure
It is also obvious that the utilization rate of light can be decayed with the lengthening of fiber lengths, and in motion process due to have passed through optical fiber
In, optical fiber is also easy to fracture, and reliability can reduce.
Utility model content
To solve the above problems, the utility model aim be to provide it is a kind of it is compact-sized, can carry out to greatest extent it is scattered
The DLP optical projection apparatus of heat.
The utility model realized by following technical measures, a kind of DLP optical projection apparatus, including Projection box, institute
It states and is provided with DMD mainboard and light source in Projection box, the heat dissipation of the promising DMD mainboard of installation and light source heat radiation in the Projection box
Device, the side of the Projection box, which covers, is provided with the first radiator fan, and the other side of the Projection box, which covers, is provided with
The air of two radiator fans, the first radiator fan sucking is discharged after radiator carries out heat exchange by the second radiator fan.
The first radiator fan, the projection box are provided in the left cap of the Projection box as a preferred method,
The second radiator fan is provided on the body upper lid vertical with left cap.
The light source is 400nm-410nm purple LED as a preferred method,.
The radiator includes DMD radiator and light source heat sink as a preferred method,.
The spot size that the hot spot of light source is expanded to needs is as a preferred method, provided in front of the light source
Camera lens is collimated, the light for collimating camera lens one fly's-eye lens of directive, fly's-eye lens after the reflection of one first reflecting mirror were penetrated
By hot spot homogenization from the first lens, the second reflecting mirror and the second lens will collimate, expand, homogenize after hot spot transmitting TIR
Prism；Dmd chip on the DMD mainboard is projected away image by TIR prism by camera lens, the effect of TIR prism be by
Illumination and projection two optical paths separation, make the two not generate interference each other.
The utility model installs the radiator of promising DMD mainboard and light source heat radiation in Projection box, and the one of Projection box
The first radiator fan is provided on side cover, the other side of the Projection box, which covers, is provided with the second radiator fan, and described first
Radiator fan sucking air through radiator carry out heat exchange after by the second radiator fan be discharged, by the first radiator fan of side into
Wind, the other side the second radiator fan outlet air, forms an air duct, smoothly heat can be discharged, dissipated to greatest extent
Heat.Such while heat dissipation mode, improves the utilization rate in space, while guaranteeing system normal operation, so that structure is more
It is compact.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the schematic diagram of the utility model embodiment working condition.
Fig. 3 is the exploded view of the utility model embodiment.
Specific embodiment
Below with reference to embodiment and compares attached drawing the utility model is described in further detail.
A kind of DLP optical projection apparatus of the present embodiment please refers to attached drawing 1 to Fig. 3, including Projection box 15, the throwing
DMD mainboard 12 and light source 4 are provided in shadow cabinet 15, the promising DMD mainboard 12 of installation and light source heat radiation 4 in the Projection box 15
Radiator 2,11, the side of the Projection box 15, which covers, is provided with the first radiator fan 1, the Projection box 15 it is another
The second radiator fan 3 is provided on side cover, the air that first radiator fan 1 sucks is after radiator 2,11 carries out heat exchange
It is discharged by the second radiator fan 3.
The present apparatus installs the radiator 2,11 that promising DMD mainboard 12 and light source 4 radiate, Projection box 15 in Projection box
Side cover and be provided with the first radiator fan 1, the other side of the Projection box 15, which covers, is provided with the second radiator fan 3,
The air that first radiator fan 1 sucks is discharged after radiator 2,11 carries out heat exchange by the second radiator fan 3, by side
First radiator fan 1 air inlet, 3 outlet air of the second radiator fan of the other side form an air duct, smoothly heat can be discharged, most
Limits are radiated.Such while heat dissipation mode, improves the utilization rate in space, guarantees the same of system normal operation
When, so that structure is more compact.
In the embodiment of a DLP optical projection apparatus, attached drawing 1 is please referred to Fig. 3, in front on the basis of technical solution
The first radiator fan 1 is provided in the specific left cap for being also possible that Projection box 15, the Projection box 15 hangs down with left cap
The second radiator fan 3 is provided on straight upper lid.The second radiator 11 and first is respectively equipped on DMD mainboard 12 and light source 4 to dissipate
Hot device 2, Projection box 15 surround radiator, and left side is equipped with the first radiator fan 1, and upper capping is equipped with the second radiator fan 3, by a left side
The first radiator fan of side 1 is entered the wind, and 3 outlet air of the second radiator fan of top forms an air duct, smoothly heat can be discharged, most
Limits are radiated.
In the embodiment of a DLP optical projection apparatus, attached drawing 1 is please referred to Fig. 3, in front on the basis of technical solution
Specifically it is also possible that light source 4 is 400nm-410nm purple LED, compared to ultrahigh pressure mercury lamp (UHP), it has that colour gamut is wide, color is flat
Weighing apparatus property it is good, capacity usage ratio is high, the service life is long, small in size, environmentally protective, fast response time, it is low in energy consumption and at low cost the advantages that.Make
For the light emitting source of projection arrangement, heat is concentrated mainly on light source part, in order to obtain clear sharp keen image, in the present embodiment
Using the wavelength 405nm LED light of 30W, this LED is more than that calorific value itself is very big, and the light cast out also has very big
Heat and luminous intensity irradiate DMD for a long time, also DMD can be made to generate high temperature, produce when DMD high-frequency operation in addition
Raw temperature a, it is therefore necessary to radiator be needed to radiate.
In the embodiment of a DLP optical projection apparatus, attached drawing 1 is please referred to Fig. 3, in front on the basis of technical solution
Specifically it is also possible that radiator includes DMD radiator 11 and light source heat sink 2.
In the embodiment of a DLP optical projection apparatus, attached drawing 1 is please referred to Fig. 3, in front on the basis of technical solution
Specifically it is also possible that being provided with the collimation camera lens 5 that the hot spot of light source 4 is expanded to the spot size of needs in front of light source 4, penetrated
The light of the collimation camera lens 5 one fly's-eye lens 7 of directive, fly's-eye lens 7 after the reflection of one first reflecting mirror 6 is uniform by hot spot
Change from the first lens 8, the second reflecting mirror 9 and the second lens 10 will collimate, expand, homogenize after hot spot transmitting TIR prism 13；
Dmd chip on the DMD mainboard 12 is projected away image by TIR prism 13 by camera lens 14, and the effect of TIR prism 13 is
It will illuminate and two optical paths of projection separate, the two is made not generate interference each other.First reflecting mirror 6 and the second reflecting mirror 9 are further
System space distance is had compressed, keeps system structure more compact.Camera lens 14 is this system optical projection system, by the picture signal of DMD
It images at screen.
It is to be expounded to the utility model DLP optical projection apparatus above, is used to help understand the utility model, but
The embodiments of the present invention is simultaneously not restricted to the described embodiments, any to change without departing from made under the utility model principle
Become, modification, substitution, combination, simplify, should be equivalent substitute mode, be included in the interior of the protection scope of the utility model.
Claims (5)
1. a kind of DLP optical projection apparatus, it is characterised in that:Including Projection box, DMD mainboard is provided in the Projection box
And light source, the radiator of the promising DMD mainboard of the interior installation of the Projection box and light source heat radiation, the side of the Projection box covers
It is provided with the first radiator fan, the other side of the Projection box, which covers, is provided with the second radiator fan, first radiation air
The air for fanning sucking is discharged after radiator carries out heat exchange by the second radiator fan.
2. DLP optical projection apparatus according to claim 1, it is characterised in that：It is set in the left cap of the Projection box
It is equipped with the first radiator fan, is provided with the second radiator fan on the Projection box upper lid vertical with left cap.
3. DLP optical projection apparatus according to claim 1, it is characterised in that：The light source is 400nm-410nm purple
LED。
4. DLP optical projection apparatus according to claim 1, it is characterised in that：The radiator include DMD radiator and
Light source heat sink.
5. DLP optical projection apparatus according to claim 1, it is characterised in that：It is provided in front of the light source by light source
Hot spot be expanded to needs spot size collimation camera lens, penetrated it is described collimation camera lens light through one first reflecting mirror reflection after
One fly's-eye lens of directive, the fly's-eye lens, which will homogenize hot spot from the first lens, the second reflecting mirror and the second lens, to be collimated,
Hot spot after expanding, homogenizing transmits TIR prism；Image is passed through camera lens by TIR prism by the dmd chip on the DMD mainboard
Projection is gone out, and the effect of TIR prism is will to illuminate and project the separation of two optical paths, and the two is made not generate interference each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721857628.9U CN208110243U (en) | 2017-12-27 | 2017-12-27 | DLP optical projection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721857628.9U CN208110243U (en) | 2017-12-27 | 2017-12-27 | DLP optical projection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208110243U true CN208110243U (en) | 2018-11-16 |
Family
ID=64130071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721857628.9U Active CN208110243U (en) | 2017-12-27 | 2017-12-27 | DLP optical projection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208110243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045568A (en) * | 2019-05-13 | 2019-07-23 | 深圳市晟峰光电科技有限公司 | A kind of projection light machine of 3D printer |
| CN111541885A (en) * | 2020-05-29 | 2020-08-14 | 华东师范大学 | DLP projection technology application development platform |
-
2017
- 2017-12-27 CN CN201721857628.9U patent/CN208110243U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045568A (en) * | 2019-05-13 | 2019-07-23 | 深圳市晟峰光电科技有限公司 | A kind of projection light machine of 3D printer |
| CN111541885A (en) * | 2020-05-29 | 2020-08-14 | 华东师范大学 | DLP projection technology application development platform |
| CN111541885B (en) * | 2020-05-29 | 2024-05-17 | 华东师范大学 | DLP projection technology application development platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9513539B2 (en) | Light source unit having a microlens array for converting excitation light into plural light ray bundles and projector including the light source unit | |
| US8002413B2 (en) | Light source unit and projector | |
| JP6270045B2 (en) | Light source device and projection device | |
| JP6390922B2 (en) | Light source device and projection device | |
| US9200768B2 (en) | Light source unit and projector | |
| EP2887141B1 (en) | Projector having light source including laser diodes | |
| CN107490928B (en) | Fluorescent light emitting device, light source device, and image projection device | |
| US9678417B2 (en) | Light source unit including laser diodes as light sources and microlens array and projector | |
| US20090268170A1 (en) | Image projection apparatus | |
| JP5804316B2 (en) | projector | |
| US10317783B2 (en) | Light source unit and projector | |
| JP2015166787A (en) | Light source device and projection device | |
| CN208110243U (en) | DLP optical projection apparatus | |
| TW201430477A (en) | Cooling apparatus of projector | |
| JP2017156619A (en) | Light source device and projection device | |
| JP2012181394A (en) | Light source device and projector | |
| US9645478B2 (en) | Cooling device, image projection apparatus, and electronic apparatus | |
| JP2015052791A (en) | Light source device and projector | |
| CN102736382A (en) | Projection optical engine with laser-LED hybrid light source | |
| JP2006251149A (en) | Illumination device and projection type picture display device | |
| US11982929B2 (en) | Electronic unit including a fan, projector including a fan, and cooling control method for the electronic unit including the fan | |
| US8132923B2 (en) | Cooling device and image projection apparatus having the same | |
| CN202975577U (en) | Radiation mechanism of projector | |
| JP6990357B2 (en) | Electronic device, projection device and cooling control method | |
| JP2012141483A (en) | Design method of led light source device and led light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |