CN103412457A - Laser light source projection device - Google Patents
Laser light source projection device Download PDFInfo
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- CN103412457A CN103412457A CN2013103839358A CN201310383935A CN103412457A CN 103412457 A CN103412457 A CN 103412457A CN 2013103839358 A CN2013103839358 A CN 2013103839358A CN 201310383935 A CN201310383935 A CN 201310383935A CN 103412457 A CN103412457 A CN 103412457A
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Abstract
The invention relates to the field of projectors, in particular to a laser light source projection device. The laser light source projection device comprises a micro-display panel, a lens and a screen and further comprises three primary color laser light sources which are always in a light-emitting state when the laser light source projection device works. The number of the micro-display panel is one, light emitted by the three primary color laser light sources is output to the micro-display panel respectively, control switches are arranged between the three primary color laser light sources and the micro-display panel, and the light emitted by the three primary color laser light sources is controlled by the control switches directly to pass through the control switches sequentially at different times and then enter the micro-display panel. According to the laser light source projection device, the control switches are added at the front ends of the laser light sources to control the light emitted by the three primary color laser light sources to be output sequentially at the different times to the same micro-display panel, so that only one micro-display panel needs to be applied in the laser light source projection device, and compared with an existing device which enables three laser light sources to correspond to three micro-display panels, the laser light source projection device reduces cost greatly.
Description
Technical field
The present invention relates to field of projector, more specifically, relate to a kind of LASER Light Source projector equipment.
Background technology
At present based on micro-display panel such as DMD (digital mirror device), LCOS(liquid crystal on silicon), the projection display technique of LCD is widely applied to various places, as outdoor advertisement screen, indoor dispatch control display screen, welcome display screen, meeting display screen etc.Wherein the shadow casting technique based on dmd chip is called as DLP (Digital Light Procession) technology.In these projection display apparatus, light source is an important subsystem, and the initial value of the system brightness of its decision, uniformity coefficient, contrast, have significant impact to projection products, not only the image of optical projection system played a decisive role, affect simultaneously the design of whole optical projection system.The light source used in optical projection system at present roughly has four kinds, be respectively UHP(Ultra High Power, ultra high power), LED (Light-Emitting Diode) light source, LASER (Light Amplification by Stimulated Emission of Radiation, laser) light source and hybrid light source.The mean lifetime of the laser generator that LASER Light Source is used can reach tens thousand of hours, and can export and reach the brightness that 2000lm is even higher, make LASER Light Source because brightness is high, the life-span grows and is widely used.Use at present in the DLP optical projection system that adopts LASER Light Source, adopt sent blue laser by laser generator more, pass through again fluorescent powder color wheel, blue laser is changed into to red, green, blue three looks, 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 respectively corresponding micro-display panel of each LASER Light Source (as dmd chip), need to adopt three micro-display panels, corresponding signal is processed with control circuit and is also needed three covers, has costly problem.The scheme also had adopts pulse modulated mode directly control the unlatching of LASER Light Source or close to LASER Light Source, but this can have a strong impact on the life-span of LASER Light Source.Therefore, it is necessary proposing a kind of LASER Light Source projector equipment addressed the above problem real.
Summary of the invention
The present invention is for overcoming the described at least a defect of above-mentioned prior art (deficiency), and a kind of LASER Light Source projector equipment of with low cost, LASER Light Source long service life is provided.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of LASER Light Source projector equipment, comprise micro-display panel, camera lens and screen, three primary colours LASER Light Source that always keep luminance while also comprising the work of LASER Light Source projector equipment, described micro-display panel comprises one, the light that three primary colours LASER Light Source are sent exports respectively micro-display panel to, between three primary colours LASER Light Source and micro-display panel, be provided with gauge tap, the light that three primary colours LASER Light Source are sent under gauge tap is directly controlled successively timesharing pass gauge tap and then enter micro-display panel.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
(1) the present invention only adds gauge tap at the front end of LASER Light Source, control three primary colours LASER Light Source successively timesharing export in same micro-display panel, make the present invention only need adopt a micro-display panel, corresponding signal is processed also only to be needed a set of with control circuit, with respect to the existing pattern that adopts three LASER Light Source to carry out corresponding three micro-display panels, cost greatly reduces.
(2) because the present invention only need add gauge tap at the front end of LASER Light Source, whether gauge tap is directly controlled each corresponding LASER Light Source and is passed through in LASER Light Source the place ahead, wherein, the work of gauge tap and LASER Light Source are fully independently, it is without the working method that changes LASER Light Source, with respect to adopting pulse modulated mode directly to control the unlatching of LASER Light Source or the pattern of closing, 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 colours LASER Light Source, produces three primary colours, and the color rendition degree is good, brightness is high, and has broken through shorter bottleneck of fluorescent powder color wheel life-span, has greatly extended the life-span of whole projector equipment.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of LASER Light Source projector equipment of the present invention specific embodiment 1.
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;
For better explanation the present embodiment, 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 configurations and explanation thereof may to omit be understandable.
In description of the invention, it will be appreciated that, term " first ", " second " be only be used to describing purpose, and can not be interpreted as the quantity of indication or hint relative importance or implicit indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature of " first " of restriction, " second ".
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, can be also indirectly to connect by intermediary, can say the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term 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 projector equipment of the present invention specific embodiment.Referring to Fig. 1, a kind of LASER Light Source projector equipment of this specific embodiment, wherein micro-display panel adopts dmd chip, equipment forms and comprises dmd chip 104, camera lens 112 and screen 113, three primary colours LASER Light Source that always keep luminance while also comprising the work of LASER Light Source projector equipment, dmd chip 104 comprises one, the light sent of three primary colours LASER Light Source exports respectively dmd chip 104 to, between three primary colours LASER Light Source and dmd chip, be provided with gauge tap, the light that three primary colours LASER Light Source are sent under gauge tap is directly controlled successively timesharing pass gauge tap and then enter dmd chip 104, wherein, during three primary colours LASER Light Source work, be that continous-stable is lighted, rather than adopt pulse mode to light.
Wherein, micro-display panel can also adopt LCOS chip or LCD panel to replace dmd chip.
Wherein, gauge tap comprises three, as shown in Figure 1,106,107,108 be gauge tap, three primary colours LASER Light Source are corresponding one by one with three gauge tap 106,107,108,106,107,108 timesharing of three gauge tap open make light that three primary colours LASER Light Source send successively timesharing pass corresponding gauge tap and then enter in dmd chip 104.
Preferably, gauge tap 106,107,108 can adopt mechanical optical switch, as MEMS light, open the light, its principle be by static or other controls make can be movable micro mirror generation mechanical motion, to change the direction of propagation of input light, reach the purpose that the light reflection of LASER Light Source emission is entered or leaves 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 generally is divided into blade shutter and curtain shutter, and the blade shutter switching speed can reach 1/1000 second, and curtain shutter even can, up to 1/2000 second, can meet the requirement as Projection Display fully.Optical crystal, by voltage-controlled mode, changes refractive index, reaches the purpose that the light reflection of LASER Light Source emission is entered or leaves the dmd chip 104 in the present invention.
During work, start the LASER Light Source projector equipment, three primary colours LASER Light Source keep luminance, and three three gauge tap 106,107,108 corresponding to primary colours LASER Light Source are opened on timesharing ground successively, and each LASER Light Source of control correspondence timesharing successively exports in dmd chip 104; Single dmd chip 104 emission Output of lasers, invest screen 113 video pictures through camera lens 112.Wherein, dmd chip 104 is controlled its work by image process controller 105.
Preferably, three primary colours LASER Light Source are red laser light source 101, green laser light source 102 and blue laser light source 103.
Advantageously, the mode of three primary colours LASER Light Source aligning dmd chips 104 can realize in the following way:
The light that three primary colours LASER Light Source are sent is incident to dmd chip 104 by optical module.Preferably, optical module comprises the first catoptron 109, the second catoptron 110 and shaping lens 111, the first catoptron 109, the second catoptron 110 and shaping lens 111 are located between three primary colours LASER Light Source and dmd chip 104, three primary colours LASER Light Source are after gauge tap is passed in timesharing successively, wherein the light that sends of two primary colours LASER Light Source reflexes to shaping lens 111 by the first catoptron 109, the second catoptron 110 respectively, is incident to dmd chip 104 by shaping lens 111; Another primary colours LASER Light Source directly is 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 three primary colours LASER Light Source of optical cable transmission, particularly; Optical module comprises optical fiber and shaping lens or comprises optical cable and shaping lens, be located between three primary colours LASER Light Source and dmd chip 104, the light that three primary colours LASER Light Source are sent timesharing successively passes after gauge tap by optical fiber or optical cable transmission to shaping lens again, is incident to dmd chip 104 by shaping lens.
Based on the described a kind of LASER Light Source projector equipment of Fig. 1, the independent corresponding gauge tap of each LASER Light Source, the gauge tap that wherein red, green, blue three looks corresponding is opened on timesharing ground successively.Shown in Figure 2 is the work schedule of duty and the corresponding gauge tap of red, green, blue three look LASER Light Source 101,102,103.Red, green, blue three look LASER Light Source are in illuminating state always, and when the gauge tap 106 of red LASER Light Source 101 correspondences was in opening, the gauge tap 108 of the gauge tap 107 of green laser light source 102 correspondences and blue laser light source 103 correspondences was in closed condition; When the gauge tap 107 of green laser light source 102 correspondences was in opening, the gauge tap 108 of the gauge tap 106 of red laser light source 101 correspondences and blue laser light source 103 correspondences was in closed condition; When the gauge tap 108 of blue laser light source 103 correspondences was in opening, the gauge tap 107 of the gauge tap 106 of red laser light source 101 correspondences and green laser light source 102 correspondences was in closed condition.So, the mode of opening by timesharing makes red, green, blue three look LASER Light Source timesharing be incident in same dmd chip 104, make three primary colours LASER Light Source can share a dmd chip 104, saved the cost of two dmd chips, and directly by three primary colours LASER Light Source, producing three primary colours, the color rendition degree is good, brightness is high, and does not need to adopt fluorescent powder color wheel, break through shorter bottleneck of fluorescent powder color wheel life-span, greatly extended the life-span of whole projector equipment.
As different from Example 1, the gauge tap in the present embodiment 2 is provided with the runner of perforate, the rotation by runner make light that three primary colours LASER Light Source send successively timesharing by the perforate on runner, enter in dmd chip.In this embodiment, after the LASER Light Source projector equipment started, three primary colours LASER Light Source kept luminances, runner by rotation make three primary colours LASER Light Source successively timesharing aim at the perforate on runner, then pass runner and enter on dmd chip.Gauge tap in the present embodiment can arrange one or two or three, makes each corresponding gauge tap of three primary colours LASER Light Source or two primary colours LASER Light Source share gauge tap or three primary colours LASER Light Source share gauge tap.As shown in Figure 3, rotaring wheel structure schematic diagram while being the shared gauge tap of three primary colours LASER Light Source, this runner is provided with primary colours LASER Light Source corresponding to different perforates, at any one time, only have the light that a primary colours LASER Light Source is sent can aim at perforate corresponding on runner, making at any one time three primary colours LASER Light Source only have the light sent can pass runner enters in dmd chip, like this, three primary colours LASER Light Source timesharing are successively passed runner and are entered in dmd chip, thereby make three primary colours LASER Light Source share a dmd chip.
The corresponding same or analogous parts of same or analogous label;
In accompanying drawing, describe position relationship for only for exemplary illustration, can not be interpreted as the restriction to this patent;
Obviously, the above embodiment of the present invention is only for example of the present invention clearly is 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 also giving all embodiments.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.
Claims (10)
1. LASER Light Source projector equipment, comprise micro-display panel, camera lens and screen, it is characterized in that, three primary colours LASER Light Source that always keep luminance while also comprising the work of LASER Light Source projector equipment, described micro-display panel comprises one, the light that three primary colours LASER Light Source are sent exports respectively micro-display panel to, between three primary colours LASER Light Source and micro-display panel, be provided with gauge tap, the light that three primary colours LASER Light Source are sent under gauge tap is directly controlled successively timesharing pass gauge tap and then enter micro-display panel.
2. LASER Light Source projector equipment according to claim 1, is characterized in that, three primary colours LASER Light Source are ruddiness, green glow and blue light;
Micro-display panel is dmd chip or LCOS chip or LCD panel.
3. LASER Light Source projector equipment according to claim 1, is characterized in that, the light that three primary colours LASER Light Source are sent is incident to micro-display panel by optical module.
4. LASER Light Source projector equipment according to claim 1, it is characterized in that, described optical module comprises the first catoptron, the second catoptron and shaping lens, the light that two primary colours LASER Light Source are sent respectively by the first catoptron, the second mirror reflects to shaping lens, by shaping lens, be incident to micro-display panel; Another primary colours LASER Light Source directly is incident to micro-display panel by shaping lens.
5. LASER Light Source projector equipment according to claim 1, 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 colours LASER Light Source are sent to shaping lens, is incident to micro-display panel by shaping lens by light or optical cable transmission.
6. according to the described LASER Light Source projector equipment of claim 1 to 5 any one, it is characterized in that, described gauge tap comprises three, three primary colours LASER Light Source are corresponding one by one with three gauge tap, three gauge tap timesharing open make light that three primary colours LASER Light Source send successively timesharing enter in micro-display panel.
7. LASER Light Source projector equipment according to claim 6, is characterized in that, described gauge tap is mechanical optical switch.
8. LASER Light Source projector equipment according to claim 6, is characterized in that, described gauge tap is automatically controlled shutter.
9. LASER Light Source projector equipment according to claim 6, is characterized in that, described gauge tap is optical crystal.
10. according to the described LASER Light Source projector equipment of claim 1 to 5 any one, it is characterized in that, described gauge tap is the runner that is provided with perforate, the rotation by runner make light that three primary colours LASER Light Source send successively timesharing by the perforate on runner, enter in micro-display panel.
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 |
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| 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 |
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| CN103412457A true CN103412457A (en) | 2013-11-27 |
| CN103412457B CN103412457B (en) | 2016-04-27 |
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| CN201310383935.8A Expired - Fee Related CN103412457B (en) | 2013-08-29 | 2013-08-29 | A kind of laser light source projection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670074A (en) * | 2013-12-02 | 2015-06-03 | 现代自动车株式会社 | 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 |
| CN111240144A (en) * | 2018-11-29 | 2020-06-05 | 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 |
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| 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 |
| 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 |
| JP2008180839A (en) * | 2007-01-24 | 2008-08-07 | Mitsubishi Electric Corp | Projector |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
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| JP2008180839A (en) * | 2007-01-24 | 2008-08-07 | Mitsubishi Electric Corp | Projector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670074A (en) * | 2013-12-02 | 2015-06-03 | 现代自动车株式会社 | Curved display apparatus for providing rear combination lamp function |
| CN104670074B (en) * | 2013-12-02 | 2019-01-11 | 现代自动车株式会社 | For providing the curved-surface display device of 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 |
| US11815698B2 (en) | 2018-01-25 | 2023-11-14 | Appotronics Corporation Limited | Laser combining apparatus and display device |
| CN111240144A (en) * | 2018-11-29 | 2020-06-05 | 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 |
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| CN103412457B (en) | 2016-04-27 |
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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. |
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Granted publication date: 20160427 Termination date: 20210829 |