CN103424961A - Digital optical processing projector - Google Patents
Digital optical processing projector Download PDFInfo
- Publication number
- CN103424961A CN103424961A CN201210161348XA CN201210161348A CN103424961A CN 103424961 A CN103424961 A CN 103424961A CN 201210161348X A CN201210161348X A CN 201210161348XA CN 201210161348 A CN201210161348 A CN 201210161348A CN 103424961 A CN103424961 A CN 103424961A
- Authority
- CN
- China
- Prior art keywords
- light
- monochromatic
- monochromatic light
- digital
- rotating element
- 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.)
- Pending
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The invention relates to a digital optical processing projector which comprises a first light source, a second light source, a rotating element, a reflection mirror, a first optical filter, a second optical filter, a digital micro mirror device and a projection lens. The first light source emits first monochromatic light, and the second light source emits second monochromatic light. The rotating element is located on an emergent light path of the second monochromatic light and used for transmission of a first part of the second monochromatic light, and converts a second part of the second monochromatic light into third monochromatic light. The reflection mirror reflects the third monochromatic light. The first optical filter is used for transmission of the first monochromatic light and evenly reflects the first part of the second monochromatic light to the second optical filter. The second optical filter is used for transmission of the first monochromatic light and the first part of the second monochromatic light and reflects the third monochromatic light. The digital micro mirror device modulates the first monochromatic light, the first part of the second monochromatic light and the third monochromatic light to be an image light beam. The projection lens projects the image light beam on a screen to form a projected image.
Description
Technical field
The present invention relates to a kind of projector, relate in particular to a kind of digital light and process (Digital Light Procession, DLP) projector.
Background technology
In current digital light processing projector, some uses three laser monochromatic sources as light source.Because the collimation of LASER Light Source is very high, shooting angle is smaller, makes the projected image on screen inhomogeneous, is easy to occur hot spot, causes the poor quality of this projected image.
Summary of the invention
In view of this, be necessary to provide a kind of digital light processing projector that can effectively improve the quality of projected image.
A kind of digital light processing projector, it comprises first light source, a secondary light source, a rotating element, a catoptron, first optical filter, second optical filter, a digital micro-mirror device and a projection lens.This first light source is for launching the first monochromatic light.This secondary light source is for launching the second monochromatic light that is different from this first monochromatic light color.This rotating element is positioned on this second monochromatic emitting light path and can be rotated around the turning axle of this rotating element self, this rotating element is for this second monochromatic first of transmission, and converts this second monochromatic second portion to all be different from this first monochromatic light color and this second monochromatic light color the 3rd monochromatic light and launch.This catoptron is for reflecting the 3rd monochromatic light.This first optical filter is for this first monochromatic light of transmission and reflect this second monochromatic this first all to this second optical filter.This second optical filter is for this first monochromatic light of transmission and this second monochromatic this first and reflect the 3rd monochromatic light all to this digital micro-mirror device.This digital micro-mirror device is for being modulated into image beam by this first monochromatic light, this second monochromatic this first and the 3rd monochromatic light.This projection lens, for projecting from this image beam of this digital micro-mirror device outgoing a screen, forms projected image.
Compared with prior art, digital light processing projector of the present invention, by the rotation of this rotating element, to increase the 3rd monochromatic shooting angle, thereby reduce the hot spot on this projected image, improves the quality of the projected image of this digital light processing projector.
The accompanying drawing explanation
Fig. 1 is the structural representation of the digital light processing projector of better embodiment of the present invention.
The main element symbol description
| Digital |
100 |
| The |
10 |
| |
20 |
| |
30 |
| |
40 |
| The half-reflection and half- |
41 |
| |
42 |
| |
43 |
| Catoptron | 50 |
| The first |
60 |
| The second |
70 |
| Digital |
80 |
| |
81 |
| |
90 |
| |
200 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, for a kind of digital light processing projector 100 that embodiment of the present invention provides, it comprises first light source 10, secondary light source 20, collector lens 30, rotating element 40, catoptron 50, first optical filter 60, second optical filter 70, digital micro-mirror device 80 and a projection lens 90.
This first light source 10 is for launching the first monochromatic light.This secondary light source 20 is for launching the second monochromatic light that is different from this first monochromatic light color.This first monochromatic exit direction is mutually vertical with this second monochromatic exit direction.In the present embodiment, this first monochromatic light is ruddiness, and this second monochromatic light is blue light, and this first light source 10 is red light emitting diodes, and this secondary light source 20 is blue laser light source.
This collector lens 30 arranges on the emitting light path of this secondary light source 20, for this second monochromatic light is assembled.
This rotating element 40 is arranged on the monochromatic emitting light path of this collector lens 30 outgoing second, for this second monochromatic first of transmission, and convert this second monochromatic second portion to all be different from this first monochromatic light color and this second monochromatic light color the 3rd reflection of monochromatic light and go out.This rotating element 40 comprises a half-reflection and half-transmission substrate 41 and is coated in the fluorescent powder 42 on this half-reflection and half-transmission substrate 41.This fluorescent powder 42 is towards this collector lens 30, for converting this second monochromatic this second portion to the 3rd monochromatic light.This half-reflection and half-transmission substrate 41 can reflect the 3rd monochromatic light.This rotating element 40 can also be rotated around the rotating shaft 43 of himself, constantly to change the 3rd monochromatic exit direction.In the present embodiment, the 3rd monochromatic light is green glow.
This catoptron 50 is positioned on the 3rd monochromatic emitting light path of these rotating element 40 outgoing, for reflecting the 3rd monochromatic light.
This first optical filter 60 is positioned on this first monochromatic light and this second monochromatic emitting light path, for this first monochromatic light of transmission, and reflects this second monochromatic this first all to this second optical filter.
This second optical filter 70 is positioned on this first monochromatic light, this second monochromatic light and the 3rd monochromatic emitting light path, for this first monochromatic light of transmission and this second monochromatic this first, and reflects the 3rd monochromatic light all to this digital micro-mirror device 80.
This digital micro-mirror device 80 is for being modulated into image beam by this first monochromatic light, this second monochromatic this first and the 3rd monochromatic light.This digital micro-mirror device 80 comprises a plurality of micro mirrors 81 that are in array-like arrangement.The independent rotation of the plurality of micro mirror 81, respectively in opening or closing state, form an image source, and the micro mirror 81 of wherein opening state enters this first monochromatic light, this second monochromatic light and the 3rd reflection of monochromatic light in this projection lens 90.The speed of each micro mirror 81 rotations is lower than the rotational speed of this rotating element 40, and the micro mirror 81 that makes the 3rd monochromatic light of these rotating element 40 outgoing can be opened state reflects away.
This projection lens 90, for projecting from this image beam of these digital micro-mirror device 80 outgoing a screen 200, forms projected image.
The bang path of the light of this digital light processing projector 100 is as follows: this first monochromatic light that this first light source 10 is launched through this first optical filter 60 and this second optical filter 70, arrives this digital micro-mirror device 80 successively.After the second monochromatic light that this secondary light source 20 is launched is assembled by this collector lens 30, arrive this rotating element 40, this second monochromatic this first arrives this first optical filter 60 through this rotating element 40, and by these the first optical filter 60 reflections, then through this second optical filter 70, arrive this digital micro-mirror device 80.This second monochromatic this second portion is converted to the 3rd monochromatic light by this fluorescent powder 42, the 3rd monochromatic light is reflexed on this catoptron 50 by this rotating element 40, then reflexed to this second optical filter 70 by this catoptron 50, and reflexed in this digital micro-mirror device 80 by this second optical filter 70; This digital micro-mirror device 80 is for being modulated into image beam by this first monochromatic light, this second monochromatic this first and the 3rd monochromatic light, and this image beam is reflexed in this projection lens 90, this projection lens 90 is projected in this image beam on this screen 200.
Compared with prior art, digital light processing projector of the present invention, by the rotation of this rotating element 40, to increase the 3rd monochromatic shooting angle, thereby reduce the hot spot on this projection image, improve the quality of the projected image of this digital light processing projector 100.
In other embodiments, this secondary light source 20 also can be blue LED.
In other embodiments, this first monochromatic light also can be blue light, and this second monochromatic light also can be ruddiness, and the 3rd monochromatic light also can be green glow.
In other embodiments, this collector lens 30 also can save.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of the claims in the present invention.
Claims (8)
1. a digital light processing projector, it comprises first light source, a secondary light source, a rotating element, a catoptron, first optical filter, second optical filter, a digital micro-mirror device and a projection lens; This first light source is for launching the first monochromatic light; This secondary light source is for launching the second monochromatic light that is different from this first monochromatic light color; This rotating element is positioned on this second monochromatic emitting light path and can be rotated around the turning axle of this rotating element self, this rotating element is for this second monochromatic first of transmission, and converts this second monochromatic second portion to all be different from this first monochromatic light color and this second monochromatic light color the 3rd monochromatic light and launch; This catoptron is for reflecting the 3rd monochromatic light; This first optical filter is for this first monochromatic light of transmission and reflect this second monochromatic this first all to this second optical filter; This second optical filter is for this first monochromatic light of transmission and this second monochromatic this first and reflect the 3rd monochromatic light all to this digital micro-mirror device; This digital micro-mirror device is for being modulated into image beam by this first monochromatic light, this second monochromatic this first and the 3rd monochromatic light; This projection lens, for projecting from this image beam of this digital micro-mirror device outgoing a screen, forms projected image.
2. digital light processing projector as claimed in claim 1, it is characterized in that, this rotating element comprises a half-reflection and half-transmission substrate and is coated in the fluorescent powder on this half-reflection and half-transmission substrate, and this fluorescent powder is towards this secondary light source and for converting this second monochromatic this second portion to the 3rd monochromatic light.
3. digital light processing projector as claimed in claim 1, is characterized in that, this digital micro-mirror device comprises a plurality of micro mirrors that can independently rotate, and the speed of each micro mirror rotation is lower than the rotational speed of this rotating element.
4. digital light processing projector as claimed in claim 1, is characterized in that, this projector also comprises a collector lens, this collector lens between this secondary light source and this rotating element for this second monochromatic light is assembled to this rotating element.
5. digital light processing projector as claimed in claim 1, is characterized in that, this first monochromatic exit direction is mutually vertical with this second monochromatic exit direction.
6. digital light processing projector as claimed in claim 1, is characterized in that, this first light source is light emitting diode, and this secondary light source is LASER Light Source.
7. digital light processing projector as claimed in claim 1, is characterized in that, this first monochromatic light is ruddiness, and this second monochromatic light is blue light, and the 3rd monochromatic light is green glow.
8. digital light processing projector as claimed in claim 1, is characterized in that, this first monochromatic light is blue light, and this second monochromatic light is ruddiness, and the 3rd monochromatic light is green glow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161348XA CN103424961A (en) | 2012-05-23 | 2012-05-23 | Digital optical processing projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161348XA CN103424961A (en) | 2012-05-23 | 2012-05-23 | Digital optical processing projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103424961A true CN103424961A (en) | 2013-12-04 |
Family
ID=49649918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210161348XA Pending CN103424961A (en) | 2012-05-23 | 2012-05-23 | Digital optical processing projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103424961A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149700A1 (en) * | 2014-04-02 | 2015-10-08 | 深圳市绎立锐光科技开发有限公司 | Light source system and projection system |
| WO2022000767A1 (en) * | 2020-06-30 | 2022-01-06 | 北京闻亭泰科技术发展有限公司 | 3d printing laser processing module based on digital light processing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771530A (en) * | 2004-01-28 | 2006-05-10 | 松下电器产业株式会社 | Light emitting method, light emitting device, projection type display device |
| US20080079904A1 (en) * | 2006-09-30 | 2008-04-03 | Texas Instruments Incorporated | Display systems with spatial light modulators |
| TWM352055U (en) * | 2008-10-02 | 2009-03-01 | Young Optics Inc | Image projection and capture apparatus |
| US20090141188A1 (en) * | 2007-12-04 | 2009-06-04 | Akira Shirai | Video Image display apparatus and timing control method |
| US20100328616A1 (en) * | 2009-06-25 | 2010-12-30 | Silverstein Barry D | Hierarchical light intensity control in light projector |
| CN101937162A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Light supply apparatus, projection arrangement and projecting method |
| US20110043765A1 (en) * | 2009-08-21 | 2011-02-24 | Casio Computer Co., Ltd. | Light source device, projection apparatus, and projection method |
| CN102033397A (en) * | 2009-09-28 | 2011-04-27 | 卡西欧计算机株式会社 | Light source unit, projection apparatus, and projection method |
| US20130070205A1 (en) * | 2011-09-15 | 2013-03-21 | Young Optics Inc. | Illumination system and projection apparatus |
-
2012
- 2012-05-23 CN CN201210161348XA patent/CN103424961A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771530A (en) * | 2004-01-28 | 2006-05-10 | 松下电器产业株式会社 | Light emitting method, light emitting device, projection type display device |
| US20080079904A1 (en) * | 2006-09-30 | 2008-04-03 | Texas Instruments Incorporated | Display systems with spatial light modulators |
| US20090141188A1 (en) * | 2007-12-04 | 2009-06-04 | Akira Shirai | Video Image display apparatus and timing control method |
| TWM352055U (en) * | 2008-10-02 | 2009-03-01 | Young Optics Inc | Image projection and capture apparatus |
| US20100328616A1 (en) * | 2009-06-25 | 2010-12-30 | Silverstein Barry D | Hierarchical light intensity control in light projector |
| CN101937162A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Light supply apparatus, projection arrangement and projecting method |
| US20110043765A1 (en) * | 2009-08-21 | 2011-02-24 | Casio Computer Co., Ltd. | Light source device, projection apparatus, and projection method |
| CN102033397A (en) * | 2009-09-28 | 2011-04-27 | 卡西欧计算机株式会社 | Light source unit, projection apparatus, and projection method |
| US20130070205A1 (en) * | 2011-09-15 | 2013-03-21 | Young Optics Inc. | Illumination system and projection apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149700A1 (en) * | 2014-04-02 | 2015-10-08 | 深圳市绎立锐光科技开发有限公司 | Light source system and projection system |
| US10110861B2 (en) | 2014-04-02 | 2018-10-23 | Appotronics Corporation Limited | Light source system and projection system |
| WO2022000767A1 (en) * | 2020-06-30 | 2022-01-06 | 北京闻亭泰科技术发展有限公司 | 3d printing laser processing module based on digital light processing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8960917B2 (en) | Digital light processing projector using laser and light emitting diode | |
| US10031405B2 (en) | Light source device and projector with reducing optical system having adjustable position for positive power lens | |
| CN104122742A (en) | Laser hybrid light source projector and light source device thereof | |
| KR102595295B1 (en) | Projector | |
| US20100045938A1 (en) | Optical system for projection device | |
| JP2016540264A (en) | DLP ultra-compact projector | |
| US7532259B2 (en) | Dynamic aperture for a light processing system | |
| US20160313633A1 (en) | Light source device and projection-type display device | |
| CN105607400A (en) | Laser light source apparatus and laser projection equipment | |
| US20160295181A1 (en) | Dlp pico-projector | |
| JPWO2011108077A1 (en) | Projection display | |
| JP6364916B2 (en) | Light source device and image display device | |
| TW201317701A (en) | Optical mechanical of projector | |
| CN202049326U (en) | DLP (digital light processing) projection optical system based on planar LED light source | |
| JP2002214563A (en) | Lamp, polarization converting optical system, condensing optical system and picture display device | |
| CN103424961A (en) | Digital optical processing projector | |
| US8861078B2 (en) | Light source adjusting device and projection system comprising the same | |
| US8613517B2 (en) | Illumination system and projection device comprising the same | |
| CN105301879A (en) | Light source apparatus and optical imaging and displaying device including light source apparatus | |
| US8066388B2 (en) | Light source device and projector having same | |
| WO2015019724A1 (en) | Projector | |
| CN102768459A (en) | Double-lamp illumination device and projection equipment | |
| CN102331656A (en) | Digital light processing projector | |
| JP6913844B2 (en) | Phosphor wheel device and projection type image display device | |
| KR20140002950A (en) | Lighting apparatus of projector module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |