CN103412457B - A kind of laser light source projection device - Google Patents
A kind of laser light source projection device Download PDFInfo
- Publication number
- CN103412457B CN103412457B CN201310383935.8A CN201310383935A CN103412457B CN 103412457 B CN103412457 B CN 103412457B CN 201310383935 A CN201310383935 A CN 201310383935A CN 103412457 B CN103412457 B CN 103412457B
- Authority
- CN
- China
- Prior art keywords
- laser light
- light source
- primary color
- micro
- display panel
- 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.)
- Expired - Fee Related
Links
Landscapes
- Projection Apparatus (AREA)
Abstract
The present invention relates to field of projector, more specifically, relate to a kind of laser light source projection device.It comprises micro-display panel, camera lens and screen, keep three primary color laser light sources of luminance when also comprising laser light source projection device work always, described micro-display panel comprises one, the light that three primary color laser light sources send exports micro-display panel respectively to, be provided with gauge tap between three primary color laser light sources and micro-display panel, the light that three primary color laser light sources send under gauge tap directly controls successively timesharing then enter micro-display panel through gauge tap.The present invention only adds gauge tap in the front end of LASER Light Source, control three primary color laser light sources successively timesharing export in same micro-display panel, make the present invention only need adopt a micro-display panel, carry out the pattern of corresponding three micro-display panels relative to existing employing three LASER Light Source, cost greatly reduces.
Description
Technical field
The present invention relates to field of projector, more specifically, relate to a kind of laser light source projection device.
Background technology
At present based on micro-display panel as DMD (digitalmirrordevice), LCOS(liquidcrystalonsilicon), the projection display technique of LCD is widely applied to various place, as outdoor advertisement screen, indoor dispatch control display screen, welcome display screen, meeting display screen etc.Shadow casting technique wherein based on dmd chip is called as DLP (DigitalLightProcession) technology.In these projection display apparatus, light source is an important subsystem, and the initial value of its system brightness determined, uniformity coefficient, contrast, has significant impact to projection products, not only the image of optical projection system is played a decisive role, affect the design of whole optical projection system simultaneously.The light source used in current optical projection system roughly has four kinds, be respectively UHP(UltraHighPower, ultra high power), LED (Light-EmittingDiode) light source, LASER (LightAmplificationbyStimulatedEmissionofRadiation, laser) light source and hybrid light source.The mean lifetime of laser generator that LASER Light Source uses can reach tens thousand of hours, and can export and reach the even higher brightness of 2000lm, makes LASER Light Source because brightness is high, the life-span grows and be widely used.Current use adopts in the DLP optical projection system of LASER Light Source, many employings send blue laser by laser generator, pass through fluorescent powder color wheel again, blue laser is changed into red, green, blue three look, such drawback is that the life-span of fluorescent powder color wheel is usually relatively short, affects indirectly the life-span of whole optical projection system.And directly adopt the LASER Light Source of three three primary colours, the projection form of the corresponding micro-display panel (as dmd chip) of each LASER Light Source difference, then need employing three micro-display panels, corresponding signal transacting and control circuit also need three covers, there is costly problem.The scheme also had adopts pulse modulated mode directly to control unlatching or the closedown of LASER Light Source to LASER Light Source, but this can have a strong impact on the life-span of LASER Light Source.Therefore, a kind of laser light source projection device solved the problem is proposed real in necessary.
Summary of the invention
The present invention, for overcoming at least one defect (deficiency) described in above-mentioned prior art, provides a kind of laser light source projection device of with low cost, LASER Light Source long service life.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of laser light source projection device, comprise micro-display panel, camera lens and screen, keep three primary color laser light sources of luminance when also comprising laser light source projection device work always, described micro-display panel comprises one, the light that three primary color laser light sources send exports micro-display panel respectively to, be provided with gauge tap between three primary color laser light sources and micro-display panel, the light that three primary color laser light sources send under gauge tap directly controls successively timesharing then enter micro-display panel through gauge tap.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
(1) the present invention only adds gauge tap in the front end of LASER Light Source, control three primary color laser light sources successively timesharing export in same micro-display panel, make the present invention only need adopt a micro-display panel, corresponding signal transacting and control circuit also only need a set of, carry out the pattern of corresponding three micro-display panels relative to existing employing three LASER Light Source, cost greatly reduces.
(2) because the present invention only need add gauge tap in the front end of LASER Light Source, whether gauge tap directly controls corresponding each LASER Light Source and passes through in LASER Light Source front, wherein, the work of gauge tap and LASER Light Source are completely independently, it is without the need to changing the working method of LASER Light Source, directly control the unlatching of LASER Light Source or the pattern of closedown relative to the pulse modulated mode of employing, the present invention can extend the life-span of LASER Light Source greatly.
(3) the present invention does not need to adopt fluorescent powder color wheel, but directly by three primary color laser light sources generation three primary colours, color rendition degree is good, brightness is high, and breaches fluorescent powder color wheel life-span shorter bottleneck, substantially prolongs the life-span of whole projector equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of laser light source projection device specific embodiment 1 of the present invention.
Fig. 2 be in the embodiment of the present invention 1 three LASER Light Source timesharing by the sequential chart of corresponding gauge tap.
Fig. 3 is the structural representation of runner in the embodiment of the present invention 2.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
In describing the invention, it is to be appreciated that term " first ", " second " only for describing object, and can not be interpreted as the quantity of instruction or hint relative importance or implicit indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature of " first ", " second " of restriction.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly connected by intermediary, the connection of two element internals can be said.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present invention.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
As shown in Figure 1, be the structural representation of a kind of laser light source projection device specific embodiment of the present invention.See Fig. 1, a kind of laser light source projection device of this specific embodiment, wherein micro-display panel adopts dmd chip, equipment composition comprises dmd chip 104, camera lens 112 and screen 113, keep three primary color laser light sources of luminance when also comprising laser light source projection device work always, dmd chip 104 comprises one, the light sent of three primary color laser light sources exports dmd chip 104 respectively to, gauge tap is provided with between three primary color laser light sources and dmd chip, the light that three primary color laser light sources send under gauge tap directly controls successively timesharing then enter dmd chip 104 through gauge tap, wherein, be that continous-stable is lighted during three primary color laser light source works, instead of adopt pulse mode to light.
Wherein, micro-display panel can also adopt LCOS chip or LCD to replace dmd chip.
Wherein, gauge tap comprises three, as shown in Figure 1,106,107,108 gauge tap is, three primary color laser light sources and three gauge tap 106,107,108 one_to_one corresponding, three gauge tap 106,107,108 timesharing open three primary color laser light sources are sent light successively timesharing then enter in dmd chip 104 through corresponding gauge tap.
Preferably, gauge tap 106,107,108 can adopt mechanical optical switch, as MEMS light opens the light, its principle be by electrostatic or other controls make can be movable micro mirror generation mechanical motion, to change the direction of propagation of input light, reach the object light reflection that LASER Light Source is launched being entered or left the dmd chip 104 in the present invention.
Preferably, gauge tap 106,107,108 can also adopt automatically controlled shutter or optical crystal.Automatically controlled shutter is generally divided into blade shutter and curtain shutter, and blade shutter switching speed can reach 1/1000 second, and curtain shutter even up to 1/2000 second, can meet the requirement as Projection Display completely.Optical crystal, by voltage-controlled mode, changes refractive index, reaches the object light reflection that LASER Light Source is launched being entered or left the dmd chip 104 in the present invention.
During work, start laser light source projection device, three primary color laser light sources keep luminances, and three gauge tap 106,107,108 that three primary color laser light sources are corresponding are opened on timesharing ground successively, control corresponding each LASER Light Source successively timesharing export in dmd chip 104; Single dmd chip 104 launches Output of laser, invests screen 113 video picture through camera lens 112.Wherein, dmd chip 104 controls its work by image process controller 105.
Preferably, three primary color laser light sources are red laser light source 101, green laser light source 102 and blue laser light source 103.
Advantageously, the mode of three primary color laser source alignment dmd chips 104 can realize in the following way:
The light that three primary color laser light sources send is incident to dmd chip 104 by optical module.Preferably, optical module comprises the first catoptron 109, second catoptron 110 and shaping lens 111, first catoptron 109, second catoptron 110 and shaping lens 111 are located between three primary color laser light sources and dmd chip 104, three primary color laser light sources successively timesharing through after gauge tap, the light that wherein two primary color laser light sources send reflexes to shaping lens 111 respectively by the first catoptron 109, second catoptron 110, is incident to dmd chip 104 by shaping lens 111; Another primary color laser light source is directly incident to dmd chip 104 by shaping lens 111.
The another kind of implementation of optical module is the light sent by optical fiber or optical cable transmission three primary color laser light sources, particularly; Optical module comprises optical fiber and shaping lens or comprises optical cable and shaping lens, be located between three primary color laser light sources and dmd chip 104, the light that three primary color laser light sources send successively timesharing through after gauge tap again by optical fiber or optical cable transmission to shaping lens, be incident to dmd chip 104 by shaping lens.
Based on a kind of laser light source projection device described in Fig. 1, the independent corresponding gauge tap of each LASER Light Source, the gauge tap that wherein red, green, blue three look corresponding is opened on timesharing ground successively.Shown in Figure 2 is the work schedule of the duty of red, green, blue three look LASER Light Source 101,102,103 and the gauge tap of correspondence.Red, green, blue three look LASER Light Source is in illuminating state always, and when the gauge tap 106 of red laser light source 101 correspondence is in opening, the gauge tap 107 of green laser light source 102 correspondence and the gauge tap 108 of blue laser light source 103 correspondence are in closed condition; When the gauge tap 107 of green laser light source 102 correspondence is in opening, the gauge tap 106 of red laser light source 101 correspondence and the gauge tap 108 of blue laser light source 103 correspondence are in closed condition; When the gauge tap 108 of blue laser light source 103 correspondence is in opening, the gauge tap 106 of red laser light source 101 correspondence and the gauge tap 107 of green laser light source 102 correspondence are in closed condition.So, the mode of being opened by timesharing makes the timesharing of red, green, blue three look LASER Light Source be incident in same dmd chip 104, make three primary color laser light sources can share a dmd chip 104, save the cost of two dmd chips, and directly producing three primary colours with three primary color laser light sources, color rendition degree is good, brightness is high, and does not need to adopt fluorescent powder color wheel, breach fluorescent powder color wheel life-span shorter bottleneck, substantially prolongs the life-span of whole projector equipment.
Embodiment 2
As different from Example 1, the gauge tap in the present embodiment 2 is provided with the runner of perforate, and the light three primary color laser light sources being sent by the rotation of runner successively timesharing is entered in dmd chip by the perforate on runner.In this embodiment, after laser light source projection device starts, three primary color laser light sources keep luminances, runner by rotate make three primary color laser light sources successively timesharing aim at the perforate on runner, then enter on dmd chip through runner.Gauge tap in the present embodiment can arrange one or two or three, makes three each corresponding gauge tap of primary color laser light source or two primary color laser light sources share a gauge tap or three shared gauge tap of primary color laser light sources.As shown in Figure 3, be the rotaring wheel structure schematic diagram of three primary color laser light sources when sharing a gauge tap, this runner is provided with primary color laser light source corresponding to different perforates, at any one time, the light only having a primary color laser light source to send can aim at perforate corresponding on runner, three primary color laser light sources are at any one time made to only have the light sent can enter in dmd chip through runner, like this, three primary color laser light sources can enter in dmd chip through runner successively in timesharing, thus make three primary color laser light sources share a dmd chip.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (10)
1. a laser light source projection device, comprise micro-display panel, camera lens and screen, it is characterized in that, keep three primary color laser light sources of luminance when also comprising laser light source projection device work always, described micro-display panel comprises one, the light that three primary color laser light sources send exports micro-display panel respectively to, be provided with gauge tap between three primary color laser light sources and micro-display panel, the light that three primary color laser light sources send under gauge tap directly controls successively timesharing then enter micro-display panel through gauge tap;
That continous-stable is lighted during three primary color laser light source works.
2. laser light source projection device according to claim 1, is characterized in that, three primary color laser light sources are ruddiness, green glow and blue light;
Micro-display panel is dmd chip or LCOS chip or LCD.
3. laser light source projection device according to claim 1, is characterized in that, the light that three primary color laser light sources send is incident to micro-display panel by optical module.
4. laser light source projection device according to claim 3, it is characterized in that, described optical module comprises the first catoptron, the second catoptron and shaping lens, the light that two primary color laser light sources send reflexes to shaping lens respectively by the first catoptron, the second catoptron, is incident to micro-display panel by shaping lens; Another primary color laser light source is directly incident to micro-display panel by shaping lens.
5. laser light source projection device according to claim 3, it is characterized in that, described optical module comprises optical fiber and shaping lens or comprises optical cable and shaping lens, the light that three primary color laser light sources send to shaping lens, is incident to micro-display panel by shaping lens by optical fiber or optical cable transmission.
6. the laser light source projection device according to any one of claim 1 to 5, it is characterized in that, described gauge tap comprises three, three primary color laser light sources and three gauge tap one_to_one corresponding, three gauge tap timesharing open three primary color laser light sources are sent light successively timesharing enter in micro-display panel.
7. laser light source projection device according to claim 6, is characterized in that, described gauge tap is mechanical optical switch.
8. laser light source projection device according to claim 6, is characterized in that, described gauge tap is automatically controlled shutter.
9. laser light source projection device according to claim 6, is characterized in that, described gauge tap is optical crystal.
10. the laser light source projection device according to any one of claim 1 to 5, it is characterized in that, described gauge tap is the runner being provided with perforate, and the light three primary color laser light sources being sent by the rotation of runner successively timesharing is entered in micro-display panel by the perforate on runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383935.8A CN103412457B (en) | 2013-08-29 | 2013-08-29 | A kind of laser light source projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383935.8A CN103412457B (en) | 2013-08-29 | 2013-08-29 | A kind of laser light source projection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103412457A CN103412457A (en) | 2013-11-27 |
| CN103412457B true CN103412457B (en) | 2016-04-27 |
Family
ID=49605484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310383935.8A Expired - Fee Related CN103412457B (en) | 2013-08-29 | 2013-08-29 | A kind of laser light source projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103412457B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101500399B1 (en) * | 2013-12-02 | 2015-03-09 | 현대자동차 주식회사 | Curved display apparatus for providing rear combination lamp function |
| CN107643645A (en) * | 2017-10-30 | 2018-01-30 | 四川长虹电器股份有限公司 | A kind of color LASER Light Source optical projection systems of RGB tri- |
| CN110082998A (en) | 2018-01-25 | 2019-08-02 | 深圳光峰科技股份有限公司 | Laser Multiplexing apparatus and display equipment |
| CN111240144B (en) * | 2018-11-29 | 2022-08-05 | 青岛海信激光显示股份有限公司 | Method for realizing digital micro-reflector driving control in projection imaging |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2809679Y (en) * | 2004-11-02 | 2006-08-23 | 陈友余 | Digital micromirror - laser projector |
| CN1971340A (en) * | 2005-11-21 | 2007-05-30 | 耿征 | Real 3D high definition display method and device |
| CN2935208Y (en) * | 2006-06-29 | 2007-08-15 | 西北大学 | Fiber laser-based laser projection display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000194067A (en) * | 1998-12-24 | 2000-07-14 | Matsushita Electric Ind Co Ltd | Projection type display device, control method, display panel, video display device, view finder, control method for projection type display device and video camera |
| JP2008180839A (en) * | 2007-01-24 | 2008-08-07 | Mitsubishi Electric Corp | Projector |
-
2013
- 2013-08-29 CN CN201310383935.8A patent/CN103412457B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2809679Y (en) * | 2004-11-02 | 2006-08-23 | 陈友余 | Digital micromirror - laser projector |
| CN1971340A (en) * | 2005-11-21 | 2007-05-30 | 耿征 | Real 3D high definition display method and device |
| CN2935208Y (en) * | 2006-06-29 | 2007-08-15 | 西北大学 | Fiber laser-based laser projection display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103412457A (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101685245B (en) | Projection apparatus and projection method | |
| CN103412457B (en) | A kind of laser light source projection device | |
| CN201576164U (en) | Micro projector used for 3D display | |
| CN105527789A (en) | Projection display method and system | |
| CN102053468A (en) | Light source unit and projector | |
| CN102057327A (en) | Image display unit and method for displaying image | |
| RU2675047C2 (en) | Backlight unit, method for controlling backlight unit and liquid crystal display | |
| CN102645828B (en) | Projecting device, light source system for displaying and control methods thereof | |
| CN101825832A (en) | Laser optical engine | |
| CN103259994B (en) | Projection image display apparatus | |
| CN103037605B (en) | Lighting apparatus for discharge lamp and projector | |
| CN101194517B (en) | System and method for projecting a video image with a temporal LED combiner | |
| CN105892213A (en) | Driving control circuit of two-color laser light source | |
| CN111247795B (en) | Enhanced white light for projection illumination | |
| CN203037933U (en) | Laser light source combination system | |
| CN102480624A (en) | Image display apparatus, image display system, and image display method | |
| CN201440192U (en) | Three-dimensional monitor | |
| CN102063001A (en) | Solid light source single-system time-division color projector and projecting method | |
| CN203386052U (en) | Remote projector controller and projector capable of being maintained remotely | |
| CN201408315Y (en) | Laser optical engine | |
| CN203554559U (en) | High-definition network camera | |
| CN202649662U (en) | Color separation and combination device for high-resolution and high-brightness digital movie projectors | |
| CN101976011B (en) | MD short focus projection display device | |
| CN113949858A (en) | Method for representing left-eye image and right-eye image in different colors at specific positions of 3D video | |
| CN105227883A (en) | A kind of Transparence Display system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: VTRON GROUP Co.,Ltd. Address before: 510663 No. 6, color road, hi tech Industrial Development Zone, Guangdong, Guangzhou, China Patentee before: VTRON TECHNOLOGIES Ltd. |
|
| 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: 20160427 Termination date: 20210829 |