CN107153319B - Combination device for projector by adopting laser light source - Google Patents
Combination device for projector by adopting laser light source Download PDFInfo
- Publication number
- CN107153319B CN107153319B CN201710573914.0A CN201710573914A CN107153319B CN 107153319 B CN107153319 B CN 107153319B CN 201710573914 A CN201710573914 A CN 201710573914A CN 107153319 B CN107153319 B CN 107153319B
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- China
- Prior art keywords
- reflecting mirror
- light source
- fluorescent wheel
- laser array
- blue
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
Abstract
A combination device using laser light source for projector comprises a first blue laser array, a focusing lens, a first reflector and a fluorescent wheel; and a plurality of blue lasers emitted by the first blue laser array sequentially pass through the focusing lens and the reflecting mirror and then reach the fluorescent wheel, and the required yellow light is excited by the fluorescent wheel. The invention can more reasonably and efficiently utilize the output brightness of the laser light source, and can be directly led into various projection systems to replace the traditional light source combination device.
Description
Technical Field
The invention belongs to the technical field of light source combination devices for projectors, and particularly relates to a combination device for a projector, which adopts a laser light source.
Background
With the continuous development and innovation of projector technology, more environment-friendly solid light sources have gradually replaced ultrahigh-pressure mercury lamps or halogen lamp light sources commonly used in projectors at present. Laser projectors are therefore also non-scalable product types in the engineering market and the market future development potential is very large.
The projector using the laser light source not only can provide ultra-long service life, but also can have better color and improve the picture expressive force. Therefore, the combined device adopting the laser light source, which has reasonable design, high brightness and high performance, reasonably utilizes the existing laser light source, and is one of the important problems which are urgently needed to be solved by scientific researchers in the field.
Disclosure of Invention
The invention aims to solve the technical problem of providing a combination device adopting a laser light source for a projector, which can more reasonably and efficiently utilize the output brightness of the laser light source, can be directly led into various projection systems, and can be used for replacing the traditional light source combination device.
The invention is realized in the following way:
a combination device using laser light source for projector comprises a first blue laser array, a focusing lens, a first reflector and a fluorescent wheel;
and a plurality of blue lasers emitted by the first blue laser array sequentially pass through the focusing lens and the reflecting mirror and then reach the fluorescent wheel, and the required yellow light is excited by the fluorescent wheel.
Further, the laser device also comprises a second blue laser array, a second reflecting mirror and a half-transmitting half-reflecting mirror; the second blue laser array is arranged opposite to the first blue laser array and is staggered in phase;
the multiple blue lasers emitted by the first blue laser array sequentially pass through the semi-transparent semi-reflecting mirror and the second reflecting mirror, and the multiple blue lasers emitted by the second blue laser array sequentially pass through the second reflecting mirror and the semi-transparent semi-reflecting mirror, are then led into the focusing lens together, reach the fluorescent wheel after the first reflecting mirror, and excite to emit required yellow light through the fluorescent wheel.
Further, the fluorescent wheel is replaced by a phosphor.
The invention has the advantages that: the output brightness of the laser light source is more reasonably and efficiently utilized, and the output brightness can be directly led into a DLP projection system, and projection imaging can be efficiently realized after passing through a transmission illumination system, a color wheel, a DMD chip and a projection lens. The blue laser can excite yellow light and combine the yellow light and the blue light into white light after passing through the fluorescent body, and then projection imaging can be efficiently realized after passing through a multi-lens combination, a PBS, a beam splitting unit, a polarizing plate and liquid crystal plate combination, a prism assembly and a projection lens.
Drawings
The invention will be further described with reference to the accompanying drawings, in conjunction with examples.
FIG. 1 is a schematic view of a single laser source assembly according to the present invention.
FIG. 2 is a schematic diagram of a dual laser source combining device according to the present invention.
FIG. 3 is a schematic diagram of the dual laser light source assembly of the present invention applied to a DLP projection system.
Fig. 4 is a schematic diagram of the dual laser light source assembly of the present invention applied to a 3LCD projection system.
Detailed Description
As shown in fig. 1, a combination device 100 for a projector using a laser light source includes a first blue laser array 1, a focusing lens 2, a first reflecting mirror 3, and a fluorescent wheel 4.
The multiple blue lasers emitted by the first blue laser array 1 sequentially pass through the focusing lens 2 and the reflecting mirror 3 and then reach the fluorescent wheel 4, and the required yellow light is excited by the fluorescent wheel 4.
Further, in order to achieve higher brightness, a combination of dual laser light sources may be employed. As shown in fig. 2, a combination device 200 for a projector using a laser light source includes a first blue laser array 1, a focusing lens 2, a first reflecting mirror 3, a fluorescent wheel 4, a second blue laser array 5, a second reflecting mirror 6, and a half-transmitting half-reflecting mirror 7.
The second blue laser array 5 is arranged opposite to the first blue laser array 1 and is staggered in phase; the multiple blue lasers emitted by the first blue laser array 1 sequentially pass through the semi-transparent semi-reflecting mirror 7 and the second reflecting mirror 6, and the multiple blue lasers emitted by the second blue laser array 5 sequentially pass through the second reflecting mirror 6 and the semi-transparent reflecting mirror 7, then are guided into the focusing lens 2 and the first reflecting mirror 3 together and reach the fluorescent wheel 4, and the required yellow light is excited by the fluorescent wheel 4. Thereby obtaining laser with higher energy and realizing higher brightness.
In addition, the invention can directly replace the traditional projector light source combination device, and is suitable for DLP projection systems and 3LCD projection systems.
As shown in fig. 3, the present invention can be directly introduced into a DLP projection system 300, and can efficiently implement projection imaging after passing through an illumination system, a color wheel, a DMD chip, and a projection lens.
As shown in fig. 4, the present invention can also be directly introduced into a 3LCD projection system 400, and only the fluorescent wheel 4 needs to be replaced by a fluorescent body 8 with a similar principle, and the fluorescent body 8 can excite yellow light and combine the yellow light and the blue light into white light after passing through the fluorescent body, and then projection imaging can be efficiently realized after passing through a multi-lens combination, a PBS, a light splitting unit, a polarizing plate and liquid crystal plate combination, a prism assembly and a projection lens.
The above examples and drawings are not intended to limit the form or form of the present invention, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present invention.
Claims (2)
1. A combination device for a projector using a laser light source, characterized in that: comprises a first blue laser array, a focusing lens, a first reflecting mirror and a fluorescent wheel;
a plurality of blue lasers emitted by the first blue laser array sequentially pass through the focusing lens and the reflecting mirror and then reach the fluorescent wheel, and the required yellow light is excited by the fluorescent wheel; the device also comprises a second blue laser array, a second reflecting mirror and a half-transmitting half-reflecting mirror;
the second blue laser array is arranged opposite to the first blue laser array and is staggered in phase;
the multiple blue lasers emitted by the first blue laser array sequentially pass through the semi-transparent semi-reflecting mirror and the second reflecting mirror, and the multiple blue lasers emitted by the second blue laser array sequentially pass through the second reflecting mirror and the semi-transparent semi-reflecting mirror, are then led into the focusing lens together, reach the fluorescent wheel after the first reflecting mirror, and excite to emit required yellow light through the fluorescent wheel.
2. A combination of laser light sources for a projector as defined in claim 1, wherein: the fluorescent wheel is replaced by a fluorescent body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710573914.0A CN107153319B (en) | 2017-07-14 | 2017-07-14 | Combination device for projector by adopting laser light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710573914.0A CN107153319B (en) | 2017-07-14 | 2017-07-14 | Combination device for projector by adopting laser light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107153319A CN107153319A (en) | 2017-09-12 |
| CN107153319B true CN107153319B (en) | 2023-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710573914.0A Active CN107153319B (en) | 2017-07-14 | 2017-07-14 | Combination device for projector by adopting laser light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107153319B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201886268U (en) * | 2010-12-29 | 2011-06-29 | 杭州中科新松光电有限公司 | Laser light supply apparatus used for projection display |
| JP2015052788A (en) * | 2014-10-01 | 2015-03-19 | カシオ計算機株式会社 | Rotating body and projection device |
| CN104614927A (en) * | 2013-11-05 | 2015-05-13 | 欧司朗股份有限公司 | Lighting device and method for generating light by means of a wavelength conversion arrangement and a band-stop filter, and method for providing a band-stop filter |
| CN104820334A (en) * | 2014-02-05 | 2015-08-05 | 欧司朗有限公司 | Lighting device comprising a wavelength conversion arrangement |
| CN105116675A (en) * | 2015-06-03 | 2015-12-02 | 海信集团有限公司 | Laser source and projection display device |
| CN106125482A (en) * | 2016-09-12 | 2016-11-16 | 海信集团有限公司 | Laser light source and laser projection device |
| CN106291965A (en) * | 2016-08-26 | 2017-01-04 | 湖北久之洋红外系统股份有限公司 | A kind of without speckle tricolor laser light source and laser projection system |
| CN207198540U (en) * | 2017-07-14 | 2018-04-06 | 日立数字映像(中国)有限公司 | A kind of combination unit using LASER Light Source of projecting apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012141411A (en) * | 2010-12-28 | 2012-07-26 | Jvc Kenwood Corp | Light source device |
-
2017
- 2017-07-14 CN CN201710573914.0A patent/CN107153319B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201886268U (en) * | 2010-12-29 | 2011-06-29 | 杭州中科新松光电有限公司 | Laser light supply apparatus used for projection display |
| CN104614927A (en) * | 2013-11-05 | 2015-05-13 | 欧司朗股份有限公司 | Lighting device and method for generating light by means of a wavelength conversion arrangement and a band-stop filter, and method for providing a band-stop filter |
| CN104820334A (en) * | 2014-02-05 | 2015-08-05 | 欧司朗有限公司 | Lighting device comprising a wavelength conversion arrangement |
| JP2015052788A (en) * | 2014-10-01 | 2015-03-19 | カシオ計算機株式会社 | Rotating body and projection device |
| CN105116675A (en) * | 2015-06-03 | 2015-12-02 | 海信集团有限公司 | Laser source and projection display device |
| CN106291965A (en) * | 2016-08-26 | 2017-01-04 | 湖北久之洋红外系统股份有限公司 | A kind of without speckle tricolor laser light source and laser projection system |
| CN106125482A (en) * | 2016-09-12 | 2016-11-16 | 海信集团有限公司 | Laser light source and laser projection device |
| CN207198540U (en) * | 2017-07-14 | 2018-04-06 | 日立数字映像(中国)有限公司 | A kind of combination unit using LASER Light Source of projecting apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107153319A (en) | 2017-09-12 |
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