CN104597697B - Novel laser projector color wheel and color temperature matching method - Google Patents
Novel laser projector color wheel and color temperature matching method Download PDFInfo
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- CN104597697B CN104597697B CN201410188105.4A CN201410188105A CN104597697B CN 104597697 B CN104597697 B CN 104597697B CN 201410188105 A CN201410188105 A CN 201410188105A CN 104597697 B CN104597697 B CN 104597697B
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- color
- wave band
- wheel
- band
- colour temperature
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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
-
- 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
-
- 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 are and in particular to laser projection colour wheel is adjusted with colour temperature
Method of completing the square.
Background technology
At present, the light source of most of scialyscope is all to adopt mercury lamp light source, and the output of mercury lamp is continuous, is entered with colour wheel
Row color separation, sometime, only can pass through the spectral coverage corresponding with colour wheel, the energy of remaining wave band all lost, efficiency meeting
Very low, it is essentially all 40% about.The light source of fraction scialyscope adopts LASER Light Source, for LASER Light Source, it
Output is through fluorescent wheel segmentation, is discontinuous light, sometime the output of only one of which color, and corresponding colour wheel is also required to
It is same color coupling, or other colors can be isolated from this section of color, but have such problems as that display effect is undesirable.
Content of the invention
Goal of the invention：The invention aims to overcoming deficiency of the prior art, one kind is provided to make colour wheel efficiency high,
Make the good new pattern laser color wheel of projecting camera of color rendering effect and colour temperature matching process.
Technical scheme：In order to solve above-mentioned technical problem, a kind of new pattern laser color wheel of projecting camera of the present invention and color
Warm matching process, it comprises the following steps,
(1) determine the corresponding angle of LASER Light Source fluorescent wheel first and export corresponding brightness, G- angle 114/ brightness
2240, Y- angle 190/ brightness 3763, B- angle 56/ brightness 97；
(2) choose wave band between 490-574nm for the wavelength from the wave band of 400-800nm, its light efficiency is 73.97%；
(3) choose wave band between 590-700nm for the wavelength from the wave band of 400-800nm, its light efficiency is 32.89%；
(4) choose the angle of red tab from erotic film it is ensured that R/W >=14%；
(5) white chromaticity coordinates is calculated according to the conversion formula of CIE1931 chromaticity coordinate and tristimulus values X.Y.Z；
(6) colour temperature is calculated according to the conversion formula of CIE1931 chromaticity coordinate and colour temperature, meet 6500 ± 500K.
In described step (2), the wave band between 490-574nm is green band.
In described step (3), the wave band between 590-700nm is red band.
In described step (3), the wave band between 590-700nm is the red band chosen from yellow band.
The design specification of colour wheel will reach following requirement
, basic parameter is as follows taking a kind of LASER Light Source as a example：
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 HONGGUANG is separated from gold-tinted, end for HONGGUANG from 590nm backward, count from LASER Light Source spectrogram
According to drawing, the later energy of 590nm accounts for 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 G ratio=74%,
After increasing by second colour wheel, colour wheel parameter is changed into 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 substantially close to.
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 the present invention：The present invention passes through the tune of colour wheel and colour temperature
Join, make colour wheel efficiency high, make color rendering effect good.
Specific embodiment
With reference to 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) determine the corresponding angle of LASER Light Source fluorescent wheel first and export corresponding brightness, G- angle 114/ brightness
2240, Y- angle 190/ brightness 3763, B- angle 56/ brightness 97；
(2) choose wave band between 490-574nm for the wavelength from the wave band of 400-800nm, its light efficiency is 73.97%；
(3) choose wave band between 590-700nm for the wavelength from the wave band of 400-800nm, its light efficiency is 32.89%；
(4) choose the angle of red tab from erotic film it is ensured that R/W >=14%；
(5) white chromaticity coordinates is calculated according to the conversion formula of CIE1931 chromaticity coordinate and tristimulus values X.Y.Z；
(6) colour temperature is calculated according to the conversion formula of CIE1931 chromaticity coordinate and colour temperature, meet 6500 ± 500K.
In described step (2), the wave band between 490-574nm is green band.
In described step (3), the wave band between 590-700nm is red band.
In described step (3), the wave band between 590-700nm is the red band chosen from yellow band.
The present invention passes through 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, implement method and the approach of this technical scheme
A lot, the above is only the preferred embodiment of the present invention it is noted that coming for those skilled in the art
Say, 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 regarded as
Protection scope of the present invention, in the present embodiment, all available prior art of clearly not each ingredient is realized.
Claims (4)
1. a kind of new pattern laser color wheel of projecting camera and colour temperature matching process it is characterised in that：It comprises the following steps,
(1) determine the corresponding angle of LASER Light Source fluorescent wheel first and export corresponding brightness, 114 degree/brightness of G- angle 2240
Lumen, 190 degree/brightness of Y- angle 3763 lumen, 56 degree/brightness of B- angle 97 lumen；
(2) choose wave band between 490-574nm for the wavelength from the wave band of 400-800nm, its light efficiency is 73.97%；
(3) choose wave band between 590-700nm for the wavelength from the wave band of 400-800nm, its light efficiency is 32.89%；
(4) choose the angle of red tab from erotic film it is ensured that R/W >=14%；
(5) white chromaticity coordinates is calculated according to the conversion formula of CIE1931 chromaticity coordinate and tristimulus values X.Y.Z；
(6) colour temperature is calculated according to the conversion formula of CIE1931 chromaticity coordinate and colour temperature, meet 6500 ± 500K.
2. new pattern laser color wheel of projecting camera according to claim 1 and colour temperature matching process it is characterised in that：Described step
(2) in, the wave band between 490-574nm is green band.
3. new pattern laser color wheel of projecting camera according to claim 1 and colour temperature matching process it is characterised in that：Described step
(3) in, the wave band between 590-700nm is red band.
4. new pattern laser color wheel of projecting camera according to claim 1 and colour temperature matching process it is characterised in that：Described step
(3) in, the wave band 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 |
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| Publication Number | Publication Date |
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| CN104597697A CN104597697A (en) | 2015-05-06 |
| CN104597697B true CN104597697B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410188105.4A Active CN104597697B (en) | 2014-05-06 | 2014-05-06 | Novel laser projector color wheel and color temperature matching method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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 |
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| CN104597697A (en) | 2015-05-06 |
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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. |