CN107422583A - A kind of digital light processing devices and projector - Google Patents
A kind of digital light processing devices and projector Download PDFInfo
- Publication number
- CN107422583A CN107422583A CN201710703894.4A CN201710703894A CN107422583A CN 107422583 A CN107422583 A CN 107422583A CN 201710703894 A CN201710703894 A CN 201710703894A CN 107422583 A CN107422583 A CN 107422583A
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- CN
- China
- Prior art keywords
- acceptor
- energy
- ray machine
- machine housing
- processing devices
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- 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.)
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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
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The embodiment provides a kind of digital light processing devices and projector, it is related to display technology field, when solving the emergent ray for handling DMD off states in the prior art, emergent ray is reflexed to outside projection optical system (on ray machine housing), temperature on ray machine housing can rise rapidly, and ray machine housing is connected to the core components such as DMD, TIR lens, temperature rise causes the radiating pressure of ray machine upper case part to increase, the problem of influenceing to influence the performance of core component.The device includes：Opening is provided with ray machine housing, emergent ray is projected by opening when micro mirror array is in off states；Digital processing unit also includes：The acceptor of energy being fixed on ray machine housing, acceptor of energy include：Cavity；Cavity face opening, heat insulating washer is provided between acceptor of energy and opening；Acceptor of energy, for absorbing the emergent ray projected by opening.The embodiment of the present invention is used for the manufacture of projector.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of digital light processing devices and projector.
Background technology
DMD (English full name：Digital Micro mirror Device, referred to as：DMD it is) at digital light
Manage (English full name：Digital Light Procession, referred to as：DLP) the core of optical projection system.The device is a kind of bistable
State space optical modulator, it presses function mounting in complementary metal oxide semiconductor (English full name by one：
Complementary Metal Oxide Semiconductor, referred to as：CMOS) the micro mirror array composition in memory cell.It is logical
Cross the memory cell that data are loaded below micro mirror array and carry out independent control micro mirror array, to guide reflected light simultaneously one
Individual video pixel space reflection is to a pixel on display.
Data carry out Electrostatic Control in a manner of binary to the deflection state of micro mirror array, as shown in Figure 1 now micro mirror
The deflection angle of array includes：(state that micro mirror array is generally in+X degree is referred to as+X degree：On states) and-X degree (generally general
The state that micro mirror array is in-X degree is referred to as：Off states)；For current device, deflection angle X is usually 12 degree (nominal
Value).
The light that micro mirror array on states is reflected is transferred on screen through projecting lens.Light will production after being reflected
A raw details in a play not acted out on stage, but told through dialogues, and define that black level substrate (is generally referred to as by the black level substrate of the image：Black Level
Floor).Image is to modulate GTG, the speed of this gray modulation by controlling the length of space proportion shared by and off states
Rate be enough to allow soon observer complete image fusion.
When micro mirror array is not powered on, micro mirror array as shown in Figure 1 is in the deflection angle of resting position now micro mirror array
Spend and (micro mirror array is generally in 0 degree of state to be referred to as 0 degree：Flat states)；Because micro mirror array does not work, i.e. Flat
When state micro-mirrors exist only in device and are turned off and do not form image, therefore Flat states are not one kind of micro mirror array
Running status.
When micro mirror array is on states, the emergent ray that now light source is irradiated on micro mirror reflexes to projector lens
In, through ovennodulation, expected picture is finally projected on screen；Therefore the light of on states is effective sunlight, is to form throwing
The light of projection picture.
Similarly, when micro mirror array is in off states, the emergent ray that now light source is irradiated on micro mirror reflexes to projection
Outside optical system (on ray machine housing), the light of this part off states belongs to invalid light, appoints to forming projection image and not rising
What act on, and this some light be DMD frameworks itself caused by invalid energy, can not technically be eliminated.
When handling the emergent ray of DMD off states in the prior art, emergent ray light source being irradiated on micro mirror is anti-
It is mapped to outside projection optical system (on ray machine housing), because the energy of emergent ray is very high, on the ray machine housing of irradiation area
Temperature can rise rapidly, and ray machine housing be connected to DMD, it is complete in transflector (English full name：Total Internal
Reflection, referred to as：TIR) the core component such as lens, temperature rise cause the radiating pressure of ray machine upper case part to increase
Greatly, the performance of core component is influenceed.
From the foregoing, when handling the emergent ray of DMD off states in the prior art, emergent ray is reflexed into projection
Outside optical system (on ray machine housing), the temperature on ray machine housing can rise rapidly, and to be connected to DMD, TIR saturating for ray machine housing
The core components such as mirror, temperature rise cause the radiating pressure of ray machine upper case part to increase, and influence to influence core component
Performance.
The content of the invention
Embodiments of the invention provide a kind of digital light processing devices and projector, solve and handle DMD in the prior art
During the emergent ray of off states, emergent ray is reflexed to outside projection optical system (on ray machine housing), on ray machine housing
Temperature can rise rapidly, and ray machine housing is connected to the core components such as DMD, TIR lens, and temperature rise causes on ray machine housing
The radiating pressure increase of part, the problem of influenceing to influence the performance of core component.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
First aspect, embodiments of the invention provide a kind of digital light processing devices, including：Ray machine housing, with ray machine shell
The DMD components of body connection；Wherein DMD components include：Micro mirror array；Opening is provided with ray machine housing, when micro mirror array is in
Emergent ray is projected by opening during off states；Digital processing unit also includes：The energy absorption being fixed on ray machine housing
Device；Acceptor of energy includes：Cavity；Cavity face opening, heat insulating washer is provided between acceptor of energy and opening；Energy is inhaled
Device is received, for absorbing the emergent ray projected by opening.
Optionally, acceptor of energy also includes：Fin；Fin is arranged at the side away from opening outside acceptor of energy.
Optionally, acceptor of energy be fixed on by screw on ray machine housing or acceptor of energy it is fixed by snap in
On ray machine housing.
Optionally, acceptor of energy includes：At least two protrude structure；Prominent structure setting is in the outer of acceptor of energy
Wall, and the position of at least two protrusion structures is relative, is provided with fixing hole in prominent structure, fixing hole is corresponded on ray machine housing
Position be provided with nut bore, acceptor of energy, which passes through the screw through fixing hole and coordinated with nut bore, to be fixed.
Optionally, digital light processing devices also include fan；The air outlet face acceptor of energy of fan, when fan is opened
When to acceptor of energy cool.
Optionally, digital light processing devices also include lens assembly, and fan is fixed on lens assembly.
Optionally, the material for preparing of acceptor of energy is metal or metal alloy material.
Optionally, the material for preparing of heat insulating washer is：High temperature resistant plastic cement or fluorubber.
Optionally, the internal coat of cavity has delustring paint.
Second aspect, embodiments of the invention provide a kind of projector, including any item of digital such as first aspect offer
Light processor.
Digital light processing devices provided in an embodiment of the present invention and projector, the ray machine housing of the digital light processing devices exist
The side that emergent ray irradiates when micro mirror array is in off states sets opening, and the aperture area being open is more than or equal to
The irradiated area of light；Therefore, when micro mirror array is in off states, emergent ray will not be shone directly on ray machine housing,
But the light projected by opening is absorbed by acceptor of energy, in order to which the heat for preventing acceptor of energy from absorbing is transferred to light
On casing body, heat insulating washer is provided between acceptor of energy and opening, therefore even if can be very good acceptor of energy
The heat of absorption is isolated with ray machine housing, ensure that ray machine housing temperature will not change it is too big；Therefore, solves prior art
During the emergent ray of middle processing DMD off states, emergent ray is reflexed to outside projection optical system (on ray machine housing), light
Temperature on casing body can rise rapidly, and ray machine housing is connected to the core components such as DMD, TIR lens, and temperature rise causes
The radiating pressure increase of ray machine upper case part, the problem of influenceing to influence the performance of core component.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the operation principle schematic diagram of DLP laser projections；
Fig. 2 for embodiments of the invention provide a kind of digital light processing devices it is unassembled when structural representation；
Fig. 3 provides a kind of structural representation of the acceptor of energy of digital light processing devices for embodiments of the invention；
Fig. 4 provides the structural representation after a kind of digital light processing devices assembling for embodiments of the invention；
Fig. 5 provides a kind of part-structure schematic diagram of digital light processing devices for embodiments of the invention.
Reference：
Digital light processing devices -10；
Ray machine housing -101；Opening 1010；
DMD components -102；Micro mirror array -1020；
Acceptor of energy -103；Cavity -1030；Fin -1031；Prominent structure -1032；
Heat insulating washer -104；
Fan -105；
Lens assembly -106；
Projector -20.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment one, embodiments of the invention provide a kind of digital light processing devices 10, include as shown in Figure 2：Ray machine shell
Body 101, the DMD components 102 being connected with ray machine housing 101；Wherein DMD components 102 include：Micro mirror array 1020；Ray machine housing
Opening 1010 is provided with 101, emergent ray is projected by opening 1010 when micro mirror array 1020 is in off states；Numeral
Processing unit 10 also includes：The acceptor of energy 103 being fixed on ray machine housing 101；Acceptor of energy 103 includes：Cavity
1030；The face opening 1010 of cavity 1030, heat insulating washer 104 is provided between acceptor of energy 103 and opening 1010；Energy is inhaled
Device 103 is received, for absorbing the emergent ray projected by opening 1010.
It should be noted that the purpose of heat insulating washer is to isolate the heat that acceptor of energy absorbs with ray machine housing, protect
Card heat is not delivered on ray machine housing that (wherein, the aperture area of heat insulating washer is big so as to realize the stabilization of ray machine case temperature
In or equal to opening aperture area)；As shown in figure 5, ray machine enclosure interior is mounted with lighting apparatus component in the application of reality, it is micro-
When lens array 1020 is in off states, emergent ray can be reflexed to ray machine by emergent ray by the TIR lens in lighting apparatus component
On housing, because ray machine housing at the position that emergent ray irradiates is provided with opening, (wherein, the aperture area of opening is more than or waited
In the irradiated area of emergent ray), therefore emergent ray can irradiate ray machine housing completely, will not cause emergent ray in light
Spuious optical issue caused by the reflection of machine enclosure interior；And the inner surface area of the cavity of acceptor of energy is bigger, outgoing is absorbed
The effect of light is better.
Optionally, acceptor of energy 103 as shown in Figure 3 also includes：Fin 1031；Fin 1031 is arranged at acceptor of energy
103 side of the outsides away from opening 1010.
It should be noted that by setting fin, can be with the radiating of the side away from opening outside energization absorber
Area, it is easy to that heat sheds in time；It is exemplary, fin can be arranged to the side of face opening.
Optionally, acceptor of energy 103 is fixed on ray machine housing 101 by screw or acceptor of energy 103 passes through
Buckle is fixed on ray machine housing 101.
It should be noted that adopt the mode that is screwed can preferably fixed energies absorber and ray machine housing, and
It is easily installed by the way of buckle fixation；Exemplary, acceptor of energy is consolidated by way of screw fixation as shown in Figure 4
It is scheduled on ray machine housing；Due to being merely given as the fixed form of acceptor of energy and ray machine housing preferably fixation side herein
Formula, wherein here is omitted for other fixed forms.
Optionally, acceptor of energy 103 includes：At least two protrude structure 1032；Prominent structure 1032 is arranged at energy
The outer wall of absorber 103, and the position of at least two protrusion structures 1032 is relative, and fixation is provided with prominent structure 1032
Hole, the position that fixing hole is corresponded on ray machine housing 101 are provided with nut bore, and acceptor of energy 103 passes through the spiral shell through fixing hole
Nail coordinates with nut bore to be fixed.
Optionally, digital light processing devices 10 also include fan 105；The air outlet face acceptor of energy of fan 105
103, acceptor of energy 103 is cooled when fan 105 is opened.
It should be noted that individually fan radiates to acceptor of energy, it is easy to increase acceptor of energy surface
Exchange rate, so as to reach the effect to acceptor of energy cooling.
Optionally, digital light processing devices 10 also include lens assembly 106, and fan 105 is fixed on lens assembly 106.
Optionally, the material for preparing of acceptor of energy 103 is metal or metal alloy material.
Optionally, the material for preparing of heat insulating washer 104 is：High temperature resistant plastic cement or fluorubber.
Optionally, the internal coat of cavity 1030 has delustring paint.
It should be noted that spraying delustring paint in ray machine enclosure interior, it is easy to absorb emergent ray.
The ray machine housing of digital light processing devices provided in an embodiment of the present invention is emitted when micro mirror array is in off states
The side of light irradiation sets opening, and the aperture area being open is more than or equal to the irradiated area of light；Therefore, micro mirror is worked as
Emergent ray will not be shone directly on ray machine housing when array is in off states, but is absorbed and passed through by acceptor of energy
Be open the light projected, in order to which the heat for preventing acceptor of energy from absorbing is transferred on ray machine housing, in acceptor of energy with opening
Heat insulating washer is provided between mouthful, therefore even if can be very good to isolate the heat that acceptor of energy absorbs with ray machine housing,
Ensure that ray machine housing temperature will not change it is too big；Therefore, solves the emergent light for handling DMD off states in the prior art
During line, emergent ray is reflexed to outside projection optical system (on ray machine housing), the temperature on ray machine housing can rise rapidly,
And ray machine housing is connected to the core components such as DMD, TIR lens, temperature raises the radiating pressure for causing ray machine upper case part
Increase, the problem of influenceing to influence the performance of core component.
Embodiment two, embodiments of the invention provide a kind of projector 20, including any item number such as the offer of embodiment one
Word light processor 10.
Projector provided in an embodiment of the present invention, ray machine housing emergent ray when micro mirror array is in off states irradiate
Side set opening, and be open aperture area be more than or equal to light irradiated area；Therefore, when micro mirror array is in
Emergent ray will not be shone directly on ray machine housing during off states, but is absorbed by acceptor of energy and projected by opening
Light, in order to prevent acceptor of energy absorb heat be transferred on ray machine housing, set between acceptor of energy and opening
Heat insulating washer is equipped with, therefore even if can be very good to isolate the heat that acceptor of energy absorbs with ray machine housing, ensure that light
The temperature of casing body will not change too big；Therefore, will when solving the emergent ray for handling DMD off states in the prior art
Emergent ray is reflexed to outside projection optical system (on ray machine housing), and the temperature on ray machine housing can rise rapidly, and ray machine
Housing is connected to the core components such as DMD, TIR lens, and temperature rise causes the radiating pressure of ray machine upper case part to increase, shadow
The problem of ringing the performance for influenceing core component.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of digital light processing devices, including：Ray machine housing, the DMD components being connected with the ray machine housing；
Wherein, the DMD components include：Micro mirror array；Characterized in that, opening is provided with the ray machine housing, when described
Emergent ray is projected by the opening when micro mirror array is in off states；
The digital processing unit also includes：The acceptor of energy being fixed on the ray machine housing；
The acceptor of energy includes：Cavity；Opening described in the cavity face, between the acceptor of energy and the opening
It is provided with heat insulating washer；The acceptor of energy, for absorbing the emergent ray projected by the opening.
2. digital light processing devices according to claim 1, it is characterised in that the acceptor of energy also includes：Fin；
The fin is arranged at the side away from the opening outside the acceptor of energy.
3. digital light processing devices according to claim 1, it is characterised in that the acceptor of energy is fixed by screw
In on the ray machine housing or the acceptor of energy is fixed by snap on the ray machine housing.
4. digital light processing devices according to claim 3, it is characterised in that the acceptor of energy includes：At least two
Individual prominent structure；The prominent structure setting is in the outer wall of the acceptor of energy, and described at least two protrude structure
Position is relative, and fixing hole is provided with the prominent structure, and the position that the fixing hole is corresponded on the ray machine housing is provided with
Nut bore, the acceptor of energy is coordinated by the screw through the fixing hole and the nut bore to be fixed.
5. digital light processing devices according to claim 1, it is characterised in that the digital light processing devices also include wind
Fan；
Acceptor of energy described in the air outlet face of the fan, the acceptor of energy is cooled when fan is opened.
6. digital light processing devices according to claim 5, it is characterised in that the digital light processing devices also include mirror
Head assembly, the fan are fixed on the lens assembly.
7. digital light processing devices according to claim 1, it is characterised in that the material for preparing of the acceptor of energy is
Metal or metal alloy material.
8. digital light processing devices according to claim 1, it is characterised in that the material for preparing of the heat insulating washer is：
High temperature resistant plastic cement or fluorubber.
9. digital light processing devices according to claim 1, it is characterised in that the internal coat of the cavity has delustring
Paint.
10. a kind of projector, it is characterised in that including the digital light processing devices as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703894.4A CN107422583A (en) | 2017-08-16 | 2017-08-16 | A kind of digital light processing devices and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703894.4A CN107422583A (en) | 2017-08-16 | 2017-08-16 | A kind of digital light processing devices and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107422583A true CN107422583A (en) | 2017-12-01 |
Family
ID=60438272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710703894.4A Withdrawn CN107422583A (en) | 2017-08-16 | 2017-08-16 | A kind of digital light processing devices and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107422583A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490719A (en) * | 2018-03-22 | 2018-09-04 | 青岛海信电器股份有限公司 | A kind of optical module and projection arrangement applied in projection arrangement |
| CN108628072A (en) * | 2017-03-21 | 2018-10-09 | 卡西欧计算机株式会社 | Light supply apparatus and projection arrangement |
| CN111856845A (en) * | 2019-04-28 | 2020-10-30 | 青岛海信激光显示股份有限公司 | Optical machine assembly of projection equipment and projection equipment |
| CN114415456A (en) * | 2021-12-22 | 2022-04-29 | 歌尔光学科技有限公司 | Projection optical machine and design method |
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| CN106918985A (en) * | 2017-04-17 | 2017-07-04 | 苏州佳世达光电有限公司 | Projection arrangement |
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| CN108628072A (en) * | 2017-03-21 | 2018-10-09 | 卡西欧计算机株式会社 | Light supply apparatus and projection arrangement |
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| CN114415456A (en) * | 2021-12-22 | 2022-04-29 | 歌尔光学科技有限公司 | Projection optical machine and design method |
| CN114415456B (en) * | 2021-12-22 | 2024-05-14 | 歌尔光学科技有限公司 | Projection optical machine and design method |
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Application publication date: 20171201 |