CN104597697A - Novel laser projector color wheel and color temperature matching method - Google Patents
Novel laser projector color wheel and color temperature matching method Download PDFInfo
- Publication number
- CN104597697A CN104597697A CN201410188105.4A CN201410188105A CN104597697A CN 104597697 A CN104597697 A CN 104597697A CN 201410188105 A CN201410188105 A CN 201410188105A CN 104597697 A CN104597697 A CN 104597697A
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- color
- wheel
- wave band
- colour temperature
- band
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3161—Modulator illumination systems using laser light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Radiation Pyrometers (AREA)
- Projection Apparatus (AREA)
Abstract
The invention relates to a novel laser projector color wheel and color temperature matching method. The method comprises the following steps of determining the corresponding angle and the corresponding output luminance of the fluorescent wheel of a laser light source; selecting green wave bands and red wave bands; selecting the angles of red pieces from yellow pieces, and ensuring R/W>=14%; according to CIE1931 (Commission Internationale Ed I'eclairage) chromaticity coordinates and the tristimulus-value X.Y.Z conversion formula, computing white coordinates; according to the CIE1931 chromaticity coordinates and the color temperature conversion formula, computing color temperature and enabling the color temperature to meet 6000-7000 K. The novel laser projector color wheel and color temperature matching method achieves high color wheel efficiency and good color display effects.
Description
Technical field
The present invention relates to a kind of color wheel of projecting camera and colour temperature concocting method, be specifically related to laser projection colour wheel and colour temperature concocting method.
Background technology
At present, the light source of most of projector is all adopt mercury lamp light source, and the output of mercury lamp is continuous print, carry out color separation with colour wheel, sometime, only can pass through by the spectral coverage corresponding with colour wheel, the energy of all the other wave bands all lost, and efficiency can be very low, is all about 40% substantially.The light source of fraction projector adopts LASER Light Source, for LASER Light Source, its output is through fluorescent wheel segmentation, discontinuous light, a color is only had to export sometime, corresponding colour wheel also needs to be same color coupling, or can isolate other colors from this section of color, but there is the problems such as display effect is undesirable.
Summary of the invention
Goal of the invention: the object of the invention is to overcome deficiency of the prior art, provides one to make colour wheel efficiency high, the new pattern laser color wheel of projecting camera making color rendering effect good and colour temperature matching process.
Technical scheme: in order to solve the problems of the technologies described above, a kind of new pattern laser color wheel of projecting camera of the present invention and colour temperature matching process, it comprises the following steps,
(1) angle that LASER Light Source fluorescent wheel is corresponding and the brightness exporting correspondence is first determined, G-angle 114/ brightness 2240, Y-angle 190/ brightness 3763, B-angle 56/ brightness 97;
(2) from the wave band of 400-800nm, choose the wave band of wavelength between 490-574nm, its optical efficiency is 73.97%;
(3) from the wave band of 400-800nm, choose the wave band of wavelength between 590-700nm, its optical efficiency is 32.89%;
(4) from erotic film, choose the angle of red tab, ensure R/W >=14%;
(5) white chromaticity coordinates is calculated according to the conversion formula of CIE1931 chromaticity coordinates and tristimulus values X.Y.Z;
(6) calculate colour temperature according to the conversion formula of CIE1931 chromaticity coordinates and colour temperature, meet 6500 ± 500K.
Wave band in described step (2) between 490-574nm is green band.
Wave band in described step (3) between 590-700nm is red band.
Wave band in described step (3) between 590-700nm is the red band chosen from yellow band.
The design specification of colour wheel will reach following requirement
For a kind of LASER Light Source, basic parameter is as follows:
Fluorescent wheel angle parameter is Y190 degree G114 degree B56 degree,
Output characteristics is as follows
| Color | Brightness (lumen) | x | y |
| In vain | 6100 | 0.31 | 0.38 |
| Green | 2240 | 0.335 | 0.592 |
| Blue | 97 | 0.158 | 0.018 |
| Yellow | 3763 | 0.425 | 0.548 |
First separated from gold-tinted by ruddiness, end for ruddiness backward, count can draw from LASER Light Source spectrogram from 590nm, the later energy of 590nm accounts for the ratio Rratio=32.2% of whole gold-tinted energy,
Green spectral needs to choose 490-574, then the ratio of green spectral shared by it is Gratio=74%,
After increasing by second colour wheel, colour wheel parameter becomes R112G114B56Y78,
Now light source output characteristics parameter after colour wheel is
| Color | Segment Size | x | y | L |
| R | 93 | 0.64 | 0.35 | 606 |
| G | 114 | 0.3 | 0.63 | 1660 |
| B | 56 | 0.158 | 0.018 | 97 |
| Y | 97 | 0.425 | 0.548 | 1921 |
| C2 | 0 | 0 | 0 | 0 |
| W | 360 | 0.319731051 | 0.323059563 | 4284 |
R/w=14.15%, G/w=38.7%, B/w=2.27%, color temperature value is substantially close.
Now the parameter specification of colour wheel is
| Color | Segment Size | T50％(nm) |
| R | 93 | 590 |
| G | 114 | 490,574 |
| B | 56 | 490 |
| Y | 97 | 420 |
Beneficial effect: compared with prior art, its remarkable advantage is in the present invention: the present invention, by the allotment of colour wheel and colour temperature, makes colour wheel efficiency high, makes color rendering effect good.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
A kind of new pattern laser color wheel of projecting camera of the present invention and colour temperature matching process, it comprises the following steps,
(1) angle that LASER Light Source fluorescent wheel is corresponding and the brightness exporting correspondence is first determined, G-angle 114/ brightness 2240, Y-angle 190/ brightness 3763, B-angle 56/ brightness 97;
(2) from the wave band of 400-800nm, choose the wave band of wavelength between 490-574nm, its optical efficiency is 73.97%;
(3) from the wave band of 400-800nm, choose the wave band of wavelength between 590-700nm, its optical efficiency is 32.89%;
(4) from erotic film, choose the angle of red tab, ensure R/W >=14%;
(5) white chromaticity coordinates is calculated according to the conversion formula of CIE1931 chromaticity coordinates and tristimulus values X.Y.Z;
(6) calculate colour temperature according to the conversion formula of CIE1931 chromaticity coordinates and colour temperature, meet 6500 ± 500K.
Wave band in described step (2) between 490-574nm is green band.
Wave band in described step (3) between 590-700nm is red band.
Wave band in described step (3) between 590-700nm is the red band chosen from yellow band.
The present invention, by the allotment of colour wheel and colour temperature, makes colour wheel efficiency high, makes color rendering effect good.
The invention provides a kind of invention thinking and Manufacturing Method of Products; the method and access of this technical scheme of specific implementation is a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art, under the premise without departing from the principles of the invention, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection scope of the present invention, and all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (4)
1. new pattern laser color wheel of projecting camera and a colour temperature matching process, is characterized in that: it comprises the following steps,
(1) angle that LASER Light Source fluorescent wheel is corresponding and the brightness exporting correspondence is first determined, G-angle 114/ brightness 2240, Y-angle 190/ brightness 3763, B-angle 56/ brightness 97;
(2) from the wave band of 400-800nm, choose the wave band of wavelength between 490-574nm, its optical efficiency is 73.97%;
(3) from the wave band of 400-800nm, choose the wave band of wavelength between 590-700nm, its optical efficiency is 32.89%;
(4) from erotic film, choose the angle of red tab, ensure R/W >=14%;
(5) white chromaticity coordinates is calculated according to the conversion formula of CIE1931 chromaticity coordinates and tristimulus values X.Y.Z;
(6) calculate colour temperature according to the conversion formula of CIE1931 chromaticity coordinates and colour temperature, meet 6500 ± 500K.
2. new pattern laser color wheel of projecting camera according to claim 1 and colour temperature matching process, is characterized in that: the wave band in described step (2) between 490-574nm is green band.
3. new pattern laser color wheel of projecting camera according to claim 1 and colour temperature matching process, is characterized in that: the wave band in described step (3) between 590-700nm is red band.
4. new pattern laser color wheel of projecting camera according to claim 1 and colour temperature matching process, is characterized in that: the wave band in described step (3) between 590-700nm is the red band chosen from yellow band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188105.4A CN104597697B (en) | 2014-05-06 | 2014-05-06 | Novel laser projector color wheel and color temperature matching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188105.4A CN104597697B (en) | 2014-05-06 | 2014-05-06 | Novel laser projector color wheel and color temperature matching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104597697A true CN104597697A (en) | 2015-05-06 |
| CN104597697B CN104597697B (en) | 2017-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911807A (en) * | 2016-06-03 | 2016-08-31 | 青岛海信电器股份有限公司 | Laser projection method and laser projector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668572A (en) * | 1995-05-26 | 1997-09-16 | Texas Instruments Incorporated | Color temperature compensation for digital display system with color wheel |
| CN1987634A (en) * | 2005-12-23 | 2007-06-27 | 明基电通股份有限公司 | Light source structure of projector |
| CN101231451A (en) * | 2007-01-25 | 2008-07-30 | 明基电通股份有限公司 | Six-segment color wheel |
| CN102650813A (en) * | 2011-11-28 | 2012-08-29 | 深圳市光峰光电技术有限公司 | Light source system, projector and color balance adjusting method of projector |
| CN103018864A (en) * | 2011-09-22 | 2013-04-03 | 台达电子工业股份有限公司 | Phosphor device and illumination system and projection apparatus with the same |
-
2014
- 2014-05-06 CN CN201410188105.4A patent/CN104597697B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668572A (en) * | 1995-05-26 | 1997-09-16 | Texas Instruments Incorporated | Color temperature compensation for digital display system with color wheel |
| CN1987634A (en) * | 2005-12-23 | 2007-06-27 | 明基电通股份有限公司 | Light source structure of projector |
| CN101231451A (en) * | 2007-01-25 | 2008-07-30 | 明基电通股份有限公司 | Six-segment color wheel |
| CN103018864A (en) * | 2011-09-22 | 2013-04-03 | 台达电子工业股份有限公司 | Phosphor device and illumination system and projection apparatus with the same |
| CN102650813A (en) * | 2011-11-28 | 2012-08-29 | 深圳市光峰光电技术有限公司 | Light source system, projector and color balance adjusting method of projector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911807A (en) * | 2016-06-03 | 2016-08-31 | 青岛海信电器股份有限公司 | Laser projection method and laser projector |
| CN105911807B (en) * | 2016-06-03 | 2019-03-22 | 青岛海信电器股份有限公司 | Laser projection method and laser projection |
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| Publication number | Publication date |
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| CN104597697B (en) | 2017-02-08 |
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Address after: 214213 Yongan Road, Yixing Economic Development Zone, Jiangsu, Wuxi Applicant after: JIANGSU INOVEL DISPLAY TECHNOLOGY CO., LTD. Address before: 214213 Yongan Road, Yixing Economic Development Zone, Jiangsu, Wuxi Applicant before: Jiangsu Inovel Photoelectric Technology Co., Ltd. |
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Effective date of registration: 20200727 Address after: 239000 building 19, Zhaoyang Industrial Park, 801 Century Avenue, Chuzhou, Anhui. Patentee after: CHUZHOU AILUOWEI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 214213 Yongan Road, Yixing Economic Development Zone, Jiangsu, Wuxi Patentee before: JIANGSU INOVEL DISPLAY TECHNOLOGY Co.,Ltd. |
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