CN104102078A - Digital light procession type projector having function of light energy recovery - Google Patents
Digital light procession type projector having function of light energy recovery Download PDFInfo
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- CN104102078A CN104102078A CN201410270230.XA CN201410270230A CN104102078A CN 104102078 A CN104102078 A CN 104102078A CN 201410270230 A CN201410270230 A CN 201410270230A CN 104102078 A CN104102078 A CN 104102078A
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Abstract
The invention relates to a digital light processing type projector having function of light energy recovery. The digital light processing type projector comprises a projector light source, a DMD (Digital Micromirror Device) and a projection lens and also comprises an optical system and a photoelectric conversion device, wherein the optical system comprises an incident end and an emergent end, the incident end is opposite to the projector light source and receives a light ray emitted from the projector light source; the photoelectric conversion device is arranged between the emergent end of the optical system and the DMD and comprises a photoelectric conversion part and a transmitting window, the light ray emitted from the emergent end is irradiated on the DMD through the transmitting window; when a micro lens of the DMD is at an "on" state, the light ray is reflected, passes through the transmitting window and is emitted out through the projection lens, and when the micro lens of the DMD is at an "off" state, the light ray is reflected and irradiated on the photoelectric conversion part; and the photoelectric conversion part is used for converting light irradiated on the photoelectric conversion part into electric energy. By the digital light processing type projector, the light energy reflected when the micro lens of the DMD is at the "off" state is converted into the electric energy for recycling so as to achieve effects of energy saving and environment friendliness.
Description
Technical field
The present invention relates to projector, the digital light processing type projector that particularly relates to a kind of tool luminous energy and reclaim again function.
Background technology
Digital light processing (Digital Light Procession, DLP), is a kind of first the digital processing of signal of video signal process, and then the shadow casting technique that light is projected.
Digital Micromirror Device (Digital Micromirror Device, DMD) be the basis of DLP, a DMD can be simply described as being a semiconductor optical switch, millions of micromirror is gathered on dmd chip, a slice micromirror represents a pixel, and switch change-over speed can reach thousand times/second or faster.The rotation of every micromirror is controlled by digital drive signals, " opens " signal once receive expression, a micromirror angle of inclination (such as+12 °); As receive the signal of expression " pass ", and tilt to another angle (for example-12 °), represent that micromirror is in non-projection state.
The energy consumption of projector is higher at present, how to effectively utilize the light source of projecting camera light bulb, just becomes the important topic in projector's design.
Summary of the invention
Based on this, be necessary the digital light processing type projector that provides a kind of tool luminous energy to reclaim again function.
A kind of tool luminous energy reclaims the digital light processing type projector of function again, comprise light source of projector, digital micro-mirror chip and projection lens, also comprise: optical system, comprise light inputting end and bright dipping end, described light inputting end correspondence also receives the light that described light source of projector sends; Photoelectric conversion device, be located between the bright dipping end and described digital micro-mirror chip of described optical system, described photoelectric conversion device comprises photoelectric conversion part and optical transmission window, is brought out the light of penetrating be irradiated on described digital micro-mirror chip by described optical transmission window by described bright dipping; When the position of described optical transmission window and size make micromirror on described digital micro-mirror chip for " opening " state by light reflection and through described optical transmission window, see through described projection lens outgoing again, the micromirror on described digital micro-mirror chip during for " pass " state by light reflection and get on described photoelectric conversion part; Described photoelectric conversion part is for being converted to electric energy by the light of getting on described photoelectric conversion part.
Therein in an embodiment, described optical system comprises and setting gradually along light path from light inputting end to bright dipping end: ultraviolet filter, the ultraviolet ray of the light sending for filtering light source of projector; Colour wheel, for light splitting; Optical wand, for even light; Collimation lens set, for processing that light is collimated; Catoptron, for changing the direction of propagation of light; Relay lens, for making light pass described optical transmission window after the light of catoptron reflection is converged and being fixing angle and converging to the surface of described digital micro-mirror chip.
In an embodiment, described collimation lens set comprises the first collimation lens and the second collimation lens therein.
In an embodiment, described photoelectric conversion part is the opto-electronic conversion panel of a circle therein.
In an embodiment, described optical transmission window is the rectangular opening of being located at described opto-electronic conversion panel middle part therein.
In an embodiment, also comprise therein: electric power management device, is electrically connected with described photoelectric conversion device, for the electric energy of photoelectric conversion device conversion is carried out to rectifying and wave-filtering; Electrical energy storage device, is electrically connected with described electric power management device, for storing the electric energy after filter rectification.
In an embodiment, also comprise with described electrical energy storage device and be electrically connected electric energy control device, for the electric energy of described electrical energy storage device storage being converted to the required power supply of described projector therein.
In an embodiment, also comprise the apparatus for protecting power supply being electrically connected with described electric energy control device, for over-current over-voltage protection is provided therein.
In an embodiment, described projector lens is integrated therein.
Above-mentioned tool luminous energy reclaims the digital light processing type projector of function again, after the transform light energy reflecting in the micromirror of "Off" state (can not project on screen) on digital micro-mirror chip can being become to electric energy, recycle (for example, again to projector's power supply), reached the effect of energy-conserving and environment-protective.
Brief description of the drawings
By the more specifically explanation of the preferred embodiments of the present invention shown in accompanying drawing, above-mentioned and other object of the present invention, that Characteristics and advantages will become will be more clear.In whole accompanying drawings, identical Reference numeral is indicated identical part, and deliberately draws accompanying drawing by physical size equal proportion convergent-divergent, focuses on illustrating purport of the present invention.
Fig. 1 is the structural representation that in an embodiment, tool luminous energy reclaims the digital light processing type projector of function again;
Fig. 2 is the structural representation that in another embodiment, tool luminous energy reclaims the digital light processing type projector of function again;
Fig. 3 is the structural representation of photoelectric conversion device in an embodiment;
Fig. 4 be tool luminous energy reclaim again function digital light processing type projector inside by the structural representation of the Circuits System of luminous energy recycling.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing, provide first-selected embodiment of the present invention.But the present invention can realize in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiment is to make to disclosure of the present invention more thoroughly comprehensively.
It should be noted that, when element is called as " being fixed on " another element, it can be directly on another element or also can have an element placed in the middle.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology that use are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in instructions of the present invention herein, just in order to describe the object of specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Fig. 1 is the structural representation that in an embodiment, tool luminous energy reclaims the digital light processing type projector of function again, comprises light source of projector 10, optical system 20, photoelectric conversion device 30, digital micro-mirror chip 40 and projection lens 50.Optical system 20 comprises light inputting end 21 and bright dipping end 29, and wherein light inputting end 21 is corresponding and receive the light that light source of projector 10 sends.
Photoelectric conversion device 30 is located between bright dipping end 29 and digital micro-mirror chip 40, and photoelectric conversion device 30 comprises photoelectric conversion part 32 and optical transmission window 31, is irradiated on digital micro-mirror chip 40 by optical transmission window 31 by the light of bright dipping end 29 outgoing.It should be noted that, for optical transmission window 31 is shown, the photoelectric conversion part 32 in Fig. 1 has carried out analysing and observe processing.When the position of optical transmission window 31 and size can make micromirror on digital micro-mirror chip 40 for " opening " state by light reflection and through optical transmission window 31, see through projection lens 50 outgoing again, thereby can project on screen; Micromirror on digital micro-mirror chip 40 when " pass " state by light reflection and get on photoelectric conversion part 32.It is to be noted, in practical application, be difficult to ensure every a slice micromirror on digital micro-mirror chip 40 all can be in the time of " opening " state just in time by light reflection through optical transmission window 31, and in the time of " pass " state just in time by light reflection to photoelectric conversion part 32, can only time strive for that correlation parameter is adjusted to micromirror as much as possible can meet the demands in design.Photoelectric conversion part 32 is for being converted to electric energy by the light of getting on photoelectric conversion part 32.
Above-mentioned tool luminous energy reclaims the digital light processing type projector of function again, after the transform light energy reflecting in the micromirror of "Off" state (can not project on screen) on digital micro-mirror chip 40 can being become to electric energy, recycle (such as again to projector's power supply), thereby reach the effect of energy-conserving and environment-protective.
Fig. 2 is the structural representation that in another embodiment, tool luminous energy reclaims the digital light processing type projector of function again, in this embodiment, optical system 20 comprises the ultraviolet filter 22 (being a UV-CUT eyeglass in the present embodiment), colour wheel 23, optical wand 24, collimation lens set 25, catoptron 26 and the relay lens 27 that set gradually along light path from light inputting end to bright dipping end.The ultraviolet ray of the light that wherein ultraviolet filter 22 sends for filtering light source of projector 10, colour wheel 23 is for light splitting, optical wand 24 is for even light, collimation lens set 25 is for processing that light is collimated, thereby thereby catoptron 26 can make the position arrangement of the each parts of projector in subsequent optical path obtain the more rationally size of controlling projection machine for changing the direction of propagation of light, relay lens 27 makes light pass optical transmission window 31 after converging for the light that catoptron 26 is reflected and is fixing angle and converges to the surface of digital micro-mirror chip 40.In embodiment illustrated in fig. 2, collimation lens set 25 comprises the first collimation lens and the second collimation lens.The circuit board and the digital micro-mirror chip 40 that comprise control circuit are integrated into parts by digital micro-mirror chip 40 in embodiment illustrated in fig. 2, and the eyeglass of the projection lens that in conventional art, polylith separation arranges has been modified to the projection lens 50 of above-mentioned integral structure.
Fig. 3 is the structural representation of photoelectric conversion device 30 in an embodiment, and wherein photoelectric conversion part 32 is the opto-electronic conversion panel of a circle, and optical transmission window 31 is for being located at the rectangular opening in the middle part of opto-electronic conversion panel.
Please in the lump referring to Fig. 2 and Fig. 3, the light that light source of projector 10 sends arrives colour wheel 23 after ultraviolet filter 22 filtering ultraviolet light, arrive optical wand 24 through the light splitting effect of colour wheel 23 again, dodging through optical wand 24 arrives collimation lens set 25, again after collimation is processed, by catoptron 26, light path is changed, then arrive on digital micro-mirror chip 40 by relay lens 27.If the micromirror on digital micro-mirror chip 40 is "open" state, the light being reflected by micromirror is just got on projection lens 50 through optical transmission window 31, finally projects on screen.If the micromirror on digital micro-mirror chip 40 is "off" state, light is got on photoelectric conversion part 32 with regard to the reflex through micromirror, is electric energy by photoelectric conversion part 32 by transform light energy.
Fig. 4 be tool luminous energy reclaim again function digital light processing type projector inside by the structural representation of the Circuits System of luminous energy recycling, comprise successively the photoelectric conversion device 30, electric power management device 33, electrical energy storage device 34, electric energy control device 35 and the apparatus for protecting power supply 36 that are electrically connected.Electric power management device 33 carries out filter rectification for the electric energy that photoelectric conversion device 30 is changed; electrical energy storage device 34 is for storing the electric energy after filter rectification; electric energy control device 35 is converted to the required voltage of projector, the specific power supply of electric current for the electric energy that electrical energy storage device 34 is stored, and apparatus for protecting power supply 36 is for providing the defencive functions such as over-current over-voltage protection.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. tool luminous energy reclaims a digital light processing type projector for function again, comprises light source of projector, digital micro-mirror chip and projection lens, it is characterized in that, also comprises:
Optical system, comprises light inputting end and bright dipping end, and described light inputting end correspondence also receives the light that described light source of projector sends;
Photoelectric conversion device, be located between the bright dipping end and described digital micro-mirror chip of described optical system, described photoelectric conversion device comprises photoelectric conversion part and optical transmission window, is brought out the light of penetrating be irradiated on described digital micro-mirror chip by described optical transmission window by described bright dipping; When the position of described optical transmission window and size make micromirror on described digital micro-mirror chip for " opening " state by light reflection and through described optical transmission window, see through described projection lens outgoing again, the micromirror on described digital micro-mirror chip during for " pass " state by light reflection and get on described photoelectric conversion part; Described photoelectric conversion part is for being converted to electric energy by the light of getting on described photoelectric conversion part.
2. tool luminous energy according to claim 1 reclaims the digital light processing type projector of function again, it is characterized in that, described optical system comprises and setting gradually along light path from light inputting end to bright dipping end:
Ultraviolet filter, the ultraviolet ray of the light sending for filtering light source of projector;
Colour wheel, for light splitting;
Optical wand, for even light;
Collimation lens set, for processing that light is collimated;
Catoptron, for changing the direction of propagation of light;
Relay lens, for making light pass described optical transmission window after the light of catoptron reflection is converged and being fixing angle and converging to the surface of described digital micro-mirror chip.
3. tool luminous energy according to claim 2 reclaims the digital light processing type projector of function again, it is characterized in that, described collimation lens set comprises the first collimation lens and the second collimation lens.
4. tool luminous energy according to claim 1 reclaims the digital light processing type projector of function again, it is characterized in that, described photoelectric conversion part is the opto-electronic conversion panel of a circle.
5. tool luminous energy according to claim 4 reclaims the digital light processing type projector of function again, it is characterized in that, described optical transmission window is the rectangular opening of being located at described opto-electronic conversion panel middle part.
6. tool luminous energy according to claim 1 reclaims the digital light processing type projector of function again, it is characterized in that, also comprises:
Electric power management device, is electrically connected with described photoelectric conversion device, for the electric energy of photoelectric conversion device conversion is carried out to rectifying and wave-filtering;
Electrical energy storage device, is electrically connected with described electric power management device, for storing the electric energy after filter rectification.
7. tool luminous energy according to claim 6 reclaims the digital light processing type projector of function again, it is characterized in that, also comprise with described electrical energy storage device and be electrically connected electric energy control device,, for the electric energy of described electrical energy storage device storage being converted to the required power supply of described projector.
8. tool luminous energy according to claim 7 reclaims the digital light processing type projector of function again, it is characterized in that, also comprises the apparatus for protecting power supply being electrically connected with described electric energy control device, for over-current over-voltage protection is provided.
9. tool luminous energy according to claim 1 reclaims the digital light processing type projector of function again, it is characterized in that, described projector lens is integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270230.XA CN104102078B (en) | 2014-06-16 | 2014-06-16 | Tool luminous energy reclaims the digital light processing-type projector of function again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270230.XA CN104102078B (en) | 2014-06-16 | 2014-06-16 | Tool luminous energy reclaims the digital light processing-type projector of function again |
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| Publication Number | Publication Date |
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| CN104102078A true CN104102078A (en) | 2014-10-15 |
| CN104102078B CN104102078B (en) | 2016-04-13 |
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| CN201410270230.XA Expired - Fee Related CN104102078B (en) | 2014-06-16 | 2014-06-16 | Tool luminous energy reclaims the digital light processing-type projector of function again |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110106A (en) * | 2015-09-07 | 2015-12-02 | 武汉百景互动科技有限责任公司 | Projector used in elevator and control method of same |
| CN107589624A (en) * | 2017-09-29 | 2018-01-16 | 深圳晗竣雅科技有限公司 | The secondary solidifying and molding device of secondary light path based on increasing material manufacturing system |
| CN107599403A (en) * | 2017-09-29 | 2018-01-19 | 深圳晗竣雅科技有限公司 | The secondary solidifying and molding device of main optical path based on increasing material manufacturing system |
| WO2018170987A1 (en) * | 2017-03-22 | 2018-09-27 | 深圳市光峰光电技术有限公司 | Projection system |
| WO2019061855A1 (en) * | 2017-09-27 | 2019-04-04 | 惠科股份有限公司 | Optical architecture of liquid crystal optical projection device and beam processing method therefor |
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| JPH10145554A (en) * | 1996-11-11 | 1998-05-29 | Ricoh Co Ltd | Projecting device of image reading device |
| US20020008856A1 (en) * | 1998-10-21 | 2002-01-24 | Mitsubishi Denki Kabushiki Kaisha | Optical device as well as projector unit and rear projector system using the same |
| CN101126888A (en) * | 2006-08-16 | 2008-02-20 | 普立尔科技股份有限公司 | Optical projection system possessing stray light recovery and reutilization function |
| US20120133899A1 (en) * | 2007-04-10 | 2012-05-31 | Kuo-Ching Chiang | Filter-Free Projector |
| US20130335710A1 (en) * | 2012-06-15 | 2013-12-19 | Ushio Denki Kabushiki Kaisha | Light source apparatus and projector |
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2014
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Patent Citations (5)
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| JPH10145554A (en) * | 1996-11-11 | 1998-05-29 | Ricoh Co Ltd | Projecting device of image reading device |
| US20020008856A1 (en) * | 1998-10-21 | 2002-01-24 | Mitsubishi Denki Kabushiki Kaisha | Optical device as well as projector unit and rear projector system using the same |
| CN101126888A (en) * | 2006-08-16 | 2008-02-20 | 普立尔科技股份有限公司 | Optical projection system possessing stray light recovery and reutilization function |
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| US20130335710A1 (en) * | 2012-06-15 | 2013-12-19 | Ushio Denki Kabushiki Kaisha | Light source apparatus and projector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105110106A (en) * | 2015-09-07 | 2015-12-02 | 武汉百景互动科技有限责任公司 | Projector used in elevator and control method of same |
| WO2018170987A1 (en) * | 2017-03-22 | 2018-09-27 | 深圳市光峰光电技术有限公司 | Projection system |
| WO2019061855A1 (en) * | 2017-09-27 | 2019-04-04 | 惠科股份有限公司 | Optical architecture of liquid crystal optical projection device and beam processing method therefor |
| CN107589624A (en) * | 2017-09-29 | 2018-01-16 | 深圳晗竣雅科技有限公司 | The secondary solidifying and molding device of secondary light path based on increasing material manufacturing system |
| CN107599403A (en) * | 2017-09-29 | 2018-01-19 | 深圳晗竣雅科技有限公司 | The secondary solidifying and molding device of main optical path based on increasing material manufacturing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104102078B (en) | 2016-04-13 |
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