CN104730823B - White balance adjustment device and method suitable for DLP projector - Google Patents
White balance adjustment device and method suitable for DLP projector Download PDFInfo
- Publication number
- CN104730823B CN104730823B CN201510043045.1A CN201510043045A CN104730823B CN 104730823 B CN104730823 B CN 104730823B CN 201510043045 A CN201510043045 A CN 201510043045A CN 104730823 B CN104730823 B CN 104730823B
- Authority
- CN
- China
- Prior art keywords
- dlp projector
- green
- red
- blue
- lamp
- 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.)
- Active
Links
Classifications
-
- 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
- G03B21/208—Homogenising, shaping of the illumination light
Abstract
The invention discloses a white balance adjustment device and method suitable for a DLP projector. A PC is connected with the DLP projector, so that the DLP projector sequentially projects out red, green and blue images. The DLP projector corresponds to an illumination meter, and the illumination meter obtains the red, green and blue images projected out by the projector in real time and measures chromaticity coordinates and illuminations of the red, green and blue images respectively. The PC calculates sequence files of rotation duty ratios of a red lamp, a green lamp and a blue lamp and then leads the sequence files into the DLP projector. The DLP projector sets the rotation duty ratios of the red lamp, the green lamp and the blue lamp according to the sequence files, namely achieves the purpose of changing the light proportion of the red lamp, the green lamp and the blue lamp, and further adjusts colorific white balance. The white balance adjustment device is high in calibration accuracy and low in brightness loss. In addition, the whole operating process is simple and convenient, adjustment time is short, production efficiency is greatly improved, and production cost is reduced.
Description
Technical field
The present invention relates to a kind of projector white balance adjustment device and method, particularly relate to a kind of by adjusting RGB
The round dutycycle of three lamps realizes DLP projector white balance adjustment device and the method for blank level adjustment.
Background technology
DLP projector, i.e. digital light process (Digital Light Procession) projector, are a kind of based on DMD
Chip, as image device, is irradiated on this image device by powerful light source, realizes the throwing of projects images reflecting light
Shadow technology.Dmd chip, i.e. digital micro-mirror wafer (Digital Micromirror Device), be one by micromirror array
The CMOS silicon substrate constituted.Each micromirror represents a pixel, drives micromirror to rotate by the signal of telecommunication, controls each
The gray value of pixel, micromirror imaging under the driving of the signal of telecommunication, afterwards by projecting picture by camera lens after the reflection of light source
Face.
It is to be shone by colored light source (usually red, green, blue is trichroism) that the DLP projector of one chip produces the principle of color
Penetrating dmd chip surface, dmd chip is incident according to the sequential reflection of red (R), green (G), blue (B) three coloured light after forming gray level image
Light, projects picture via after shaping lens by camera lens, forms coloured image.Owing to LED light source has light excitation height, color
Territory is wide, it is possible to achieve the features such as color high speed revolution, is particularly suited for the DLP projector of one chip, the DLP of existing one chip
Projector uses LED light source substantially.Owing to the individual luminous efficiency of LED light source there are differences, under equal current condition, produce
Raw illuminance is different, and then causes produced image color there are differences.The white balance adjustment method of prior art, mainly
Be by adjust LED light source drive circuit current impulse dutycycle change LED light source luminous intensity, to adjust LED light
The illuminance in source, improves image color.This type of method of adjustment process is complex, simultaneously steady to the drive circuit of LED light source
Qualitative requirement is higher.
Summary of the invention
It is an object of the invention to overcome the deficiency of prior art, it is provided that a kind of round by adjusting RGB three lamp accounts for
Empty ratio realizes the DLP projector white balance adjustment device of blank level adjustment, and this device can adjust the white flat of DLP projector effectively
Weighing apparatus, and method is practical, stability is strong.
The technical solution adopted for the present invention to solve the technical problems is: a kind of white balance being applicable to DLP projector is adjusted
Engagement positions, including:
PC, is used for processing the chromaticity coordinate obtained by red, green, blue image three-colo(u)r of input with illumination, and counts
Calculate the sequential file of the round dutycycle obtaining RGB three lamp；
DLP projector, is used for projecting red, green, blue image three-colo(u)r, and adjusts the wheel of RGB three lamp according to sequential file
Turn dutycycle；
Illumination meter, is used for measuring chromaticity coordinate and the illumination of projects images；
Wherein, PC is connected with DLP projector, and PC first controls DLP projector, and to project red, green, blue successively trichroism
Image, controls illumination meter simultaneously and obtains the chromaticity coordinate of corresponding redgreenblue image and illumination and return PC, count afterwards
After the round dutycycle of calculation acquisition RGB three lamp formation sequence file, sequential file is imported DLP projector；DLP projector
Corresponding with illumination meter, illumination meter, when DLP projector projects red, green, blue image three-colo(u)r, measures red, green, blue trichroism respectively
The chromaticity coordinate of image and illumination；Illumination meter is connected with PC, and the chromaticity coordinate of measurement and illumination are passed to PC by illumination meter.
Preferably, described PC is before control DLP projector projects red, green, blue image three-colo(u)r successively, and it is right also to include
The ray machine temperature of described DLP projector is monitored, and controls after the ray machine temperature of DLP projector reaches systemic presupposition temperature
DLP projector projects red, green, blue image three-colo(u)r successively.
Preferably, described PC, after calculating the round dutycycle obtaining RGB three lamp, also includes verifying RGB three
Whether falling in preset range of the round dutycycle of lamp, if the round dutycycle of gained RGB three lamp is beyond preset range, then
Judge to adjust unsuccessfully；After sequential file is imported DLP projector by described PC, also include controlling DLP projector projection white
Image, and control the chromaticity coordinate of illumination meter acquisition white image and return to PC, PC is by white chromaticity coordinate and mesh
Check results is obtained after mark chromaticity coordinate value.
Preferably, also including tool palette, it is used for carrying out between USB interface signal and I2C interface signal or SPI interface signal
Mutual phase transformation；Described PC is connected with described DLP projector by this tool palette；Described tool palette passes through USB interface and institute
Stating PC to be connected, described tool palette is connected with described DLP projector with SPI interface by I2C interface, and described PC passes through
The I2C interface of tool palette sends control signal to described DLP projector, and described PC passes through the SPI interface of tool palette to described
DLP projector writes described sequential file.
Preferably, described RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueJudge that scope is as 18≤DutyRed
≤57、26≤DutyGreen≤68、10≤DutyBlue≤37。
Preferably, it is characterised in that: described RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueMeet following public
Formula:
Ratio_rbc=LuxRed/LuxBlue
Ratio_gbc=LuxGreen/LuxBlue
Wherein, xRed、yRed、LuxRedThe chromaticity coordinate of red image and illumination for DLP projector；xGreen、yGreen、LuxGreenFor DLP
The chromaticity coordinate of the green image of projector and illumination；xBlue、yBlue、LuxBlueFor DLP projector blue image chromaticity coordinate with
Illumination；xTarget、yTargetChromaticity coordinate for ideal white field to be reached；Dr, dg, db are that original acquiescence of DLP projector is red
Turquoise three lamp round dutycycles.
Preferably, described tool palette is also connected with the fan control interface of described DLP projector, to dissipate projector
Hot-air fan is controlled.
Preferably, image chroma coordinate and illumination are measured by described illumination meter is some the central point of image.
A kind of white balance adjustment method being applicable to DLP projector, comprises the following steps:
A) DLP projector projects red, green, blue image three-colo(u)r successively；
B) chromaticity coordinate and the illumination of red, green, blue image three-colo(u)r are obtained successively；
C) chromaticity coordinate and the luminance calculation of the red, green, blue image three-colo(u)r that PC is obtained by illumination meter obtains DLP projection
The round dutycycle of required RGB three lamp set of instrument；
D) PC is according to calculating the round dutycycle formation sequence file of RGB three lamp obtained and being led by sequential file
Enter DLP projector.
Also include before described a) step: the ray machine temperature of DLP projector is monitored by PC, until ray machine temperature
Subsequent step is carried out after reaching preset temperature；
Described c) step and d) also include between step: the round dutycycle of RGB three lamp is judged by PC,
Whether the round dutycycle of verification RGB three lamp falls in preset range, if the round dutycycle of gained RGB three lamp is beyond pre-
If scope, then judge to adjust unsuccessfully；
Described d) also include after step: PC controls DLP projector projection white image, and controls illumination meter and obtain
The chromaticity coordinate of white image also returns to PC, and PC obtains after the chromaticity coordinate of white being compared with target chrominance coordinates value
Check results.
The invention has the beneficial effects as follows:
It is connected with DLP projector by PC, so that it projects red, green, blue image three-colo(u)r successively；DLP projector
Corresponding with illumination meter, illumination meter obtains projector projects in real time and goes out red, green, blue image three-colo(u)r, and measures red, green, blue respectively
The chromaticity coordinate of image three-colo(u)r and illumination；PC calculates the sequential file of the round dutycycle obtaining RGB three lamp, afterwards will
Sequential file imports DLP projector；DLP projector arranges the round sequential of RGB three lamp according to sequential file, i.e. reaches
Change the purpose of redgreenblue light ratio, and then have adjusted the white balance of color.The white balance adjustment device calibration of the present invention
Precision is high, and the chromaticity coordinate precision of test result is up to ± 0.01, and does not reduce the power of LED light source, and intensity loss is little；With
Time, integrated operation process is easy, it is simple to producers operate, and adjusts the time short, drastically increases production efficiency, reduces
Production cost.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the present invention；
Fig. 2 is the theory diagram of the tool palette part of the present invention；
Fig. 3 is the workflow diagram of the present invention.
Detailed description of the invention
Embodiment
Shown in Figure 1, a kind of white balance adjustment device being applicable to DLP projector, including:
PC 1, is used for processing the chromaticity coordinate obtained by red, green, blue image three-colo(u)r of input with illumination, and counts
Calculate the sequential file of the round dutycycle obtaining RGB three lamp；
DLP projector 2, is used for projecting red, green, blue image three-colo(u)r, and adjusts RGB three lamp according to sequential file
Round dutycycle；
Illumination meter 3, is used for measuring chromaticity coordinate and the illumination of projects images；
Wherein, PC 1 is connected with DLP projector 2, and PC 1 first controls DLP projector 2 and projects red, green, blue successively
Image three-colo(u)r, controls illumination meter 3 simultaneously and obtains the chromaticity coordinate of redgreenblue image of correspondence and illumination and return PC 1,
After the round dutycycle of RGB three lamp of calculating acquisition afterwards formation sequence file, sequential file is imported DLP projector 2；
DLP projector 2 is corresponding with illumination meter 3, and illumination meter 3, when DLP projector 2 projects red, green, blue image three-colo(u)r, is surveyed respectively
The chromaticity coordinate of amount red, green, blue image three-colo(u)r and illumination；Illumination meter 3 is connected with PC 1, and the colourity measured is sat by illumination meter 3
Mark and illumination pass to PC 1.
Further, described PC 1 is before control DLP projector 2 projects red, green, blue image three-colo(u)r successively, also
Being monitored including to the ray machine temperature of described DLP projector 2, the ray machine temperature at DLP projector 2 reaches systemic presupposition temperature
Rear control DLP projector 2 projects red, green, blue image three-colo(u)r successively.
Further, described PC 1, after calculating the round dutycycle obtaining RGB three lamp, also includes verifying red green
Whether falling in preset range of the round dutycycle of blue three lamps, if the round dutycycle of gained RGB three lamp is beyond presetting model
Enclose, then judge to adjust unsuccessfully；After sequential file is imported DLP projector 2 by described PC 1, also include controlling DLP projector 2
Projection white image, and control illumination meter 3 and obtain the chromaticity coordinate of white image and return to PC 1, PC 1 is by the color of white
Degree coordinate obtains check results after comparing with target chrominance coordinates value.
Further, also including tool palette 4, it is used for carrying out USB interface signal and I2C interface signal or SPI interface
Mutual phase transformation between signal；Described PC 1 is connected with described DLP projector 2 by this tool palette 4；Described tool palette 4 passes through
USB interface is connected with described PC 1, and described tool palette 4 is connected with described DLP projector 2 with SPI interface by I2C interface
Connecing, described PC 1 sends control signal by the I2C interface of tool palette 4 to described DLP projector 2, and described PC 1 passes through work
The SPI interface of tool plate 4 writes described sequential file to described DLP projector 2.
Further, described RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueJudge scope as
18≤DutyRed≤57、26≤DutyGreen≤68、10≤DutyBlue≤37。
Further, it is characterised in that: described RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueMeet such as
Lower formula:
Ratio_rbc=LuxRed/LuxBlue
Ratio_gbc=LuxGreen/LuxBlue
Wherein, xRed、yRed、LuxRedThe chromaticity coordinate of red image and illumination for DLP projector 2；xGreen、yGreen、LuxGreenFor DLP
The chromaticity coordinate of the green image of projector 2 and illumination；xBlue、yBlue、LuxBlueChromaticity coordinate for the blue image of DLP projector 2
With illumination；xTarget、yTargetChromaticity coordinate for ideal white field to be reached；Dr, dg, db are original acquiescence of DLP projector 2
RGB three lamp round dutycycle.
Further, described tool palette 4 also fan control interface with described DLP projector 2 is connected, with to projection
The radiator fan of instrument is controlled.
Further, image chroma coordinate and illumination are measured by described illumination meter 3 is some the central point of image.
The chip that described tool palette 4 uses model to be STM32F103, its theory diagram as in figure 2 it is shown, main realize below
Function:
It is connected with PC 1 by USB interface, transmission of control signals and data；It is connected with projector by I2C interface
Connecing, transmission is by the control signal received by PC 1；It is connected with the storage device of projector by SPI interface, will be by PC
The storage device of the sequential file write projector received by 1；Monitoring projector ray machine temperature, and measurement data is returned to
PC 1；Projector radiating fan swicth is controlled.
The illumination meter that described illumination meter 3 uses model to be CL-200A.
Shown in Figure 3, the work process of the present invention is as follows:
1, the ray machine temperature of DLP projector 2 is monitored by PC 1, starts inspection when ray machine temperature reaches preset temperature
Survey；
2, PC 1 sends control signal, so that DLP projector 2 projects red, green, blue trichromatic diagram successively by tool palette 4
Picture, and send control signal and control illumination meter 3 and obtain the red, green, blue image three-colo(u)r that projector projects goes out in real time, and measure respectively
The chromaticity coordinate of red, green, blue image three-colo(u)r and illumination；xGreen、yGreen、LuxGreenFor DLP projector 2 green image chromaticity coordinate with
Illumination；xBlue、yBlue、LuxBlueThe chromaticity coordinate of blue image and illumination for DLP projector 2；xTarget、yTargetFor ideal to be reached
The chromaticity coordinate of white field；
3, the redgreenblue that PC 1 is obtained combines formula and calculates the round dutycycle of RGB three lamp, is respectively
DutyRed、DutyGreen、DutyBlue；
4, the PC 1 Duty to being calculatedRed、DutyGreen、DutyBlueJudge, as calculated the RGB three lamp duty of gained
Ratio beyond tolerance interval, then judges that light source goes wrong, needs to be replaced；
5, in sequential file storehouse, select corresponding sequential file, and write in DLP projector 2 by tool palette 4；
6, PC 1 controls projector projects by tool palette 4 and goes out white picture, reads the test result of illumination meter 3, by institute
The chromaticity coordinate obtained compares with the chromaticity coordinate of ideal white field, to judge that blank level adjustment is the most successful.
Above-described embodiment is only used for further illustrating a kind of blank level adjustment dress being applicable to DLP projector of the present invention
Put, but the invention is not limited in embodiment, every any letter above example made according to the technical spirit of the present invention
Single amendment, equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (9)
1. the white balance adjustment device being applicable to DLP projector, it is characterised in that: including:
PC, is used for processing the chromaticity coordinate obtained by red, green, blue image three-colo(u)r of input with illumination, and calculating obtains
Obtain the sequential file of the round dutycycle of RGB three lamp；
DLP projector, is used for projecting red, green, blue image three-colo(u)r, and accounts for according to the round of sequential file adjustment RGB three lamp
Empty ratio；
Illumination meter, is used for measuring chromaticity coordinate and the illumination of projects images；
Wherein, PC is connected with DLP projector, and PC first controls DLP projector and projects red, green, blue image three-colo(u)r successively,
Control illumination meter obtain the chromaticity coordinate of corresponding redgreenblue image and illumination and return PC simultaneously, calculate acquisition afterwards
After the round dutycycle of RGB three lamp formation sequence file, sequential file is imported DLP projector；DLP projector and illumination
Counting corresponding, illumination meter, when DLP projector projects red, green, blue image three-colo(u)r, measures red, green, blue image three-colo(u)r respectively
Chromaticity coordinate and illumination；Illumination meter is connected with PC, and the chromaticity coordinate of measurement and illumination are passed to PC by illumination meter；
Described PC, after calculating the round dutycycle obtaining RGB three lamp, also includes the round duty verifying RGB three lamp
Than whether fall in preset range, if the round dutycycle of gained RGB three lamp is beyond preset range, then judge to adjust unsuccessfully；
Described RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueJudge that scope is as 18≤DutyRed≤57、26≤
DutyGreen≤68、10≤DutyBlue≤37。
A kind of white balance adjustment device being applicable to DLP projector the most according to claim 1, it is characterised in that: described
PC, before control DLP projector projects red, green, blue image three-colo(u)r successively, also includes the ray machine to described DLP projector
Temperature is monitored, after the ray machine temperature of DLP projector reaches systemic presupposition temperature control DLP projector project successively red,
Image three-colo(u)r green, blue.
A kind of white balance adjustment device being applicable to DLP projector the most according to claim 1, it is characterised in that: described
After sequential file is imported DLP projector by PC, also include controlling DLP projector projection white image, and control illumination meter
Obtain the chromaticity coordinate of white image and return to PC, after the chromaticity coordinate of white is compared with target chrominance coordinates value by PC
Obtain check results.
A kind of white balance adjustment device being applicable to DLP projector the most according to claim 1, it is characterised in that: also wrap
Including tool palette, it is used for the mutual phase transformation carrying out between USB interface signal and I2C interface signal or SPI interface signal；Described PC
It is connected with described DLP projector by this tool palette；Described tool palette is connected with described PC by USB interface, described work
Tool plate is connected with described DLP projector with SPI interface by I2C interface, and described PC passes through the I2C interface of tool palette to institute
Stating DLP projector and send control signal, described PC writes described sequence by the SPI interface of tool palette to described DLP projector
Row file.
A kind of white balance adjustment device being applicable to DLP projector the most according to claim 1, it is characterised in that: described
RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueMeet equation below:
Ratio_rbc=LuxRed/LuxBlue
Ratio_gbc=LuxGreen/LuxBlue
Wherein, xRed、yRed、LuxRedThe chromaticity coordinate of red image and illumination for DLP projector；xGreen、yGreen、LuxGreenProject for DLP
The chromaticity coordinate of the green image of instrument and illumination；xBlue、yBlue、LuxBlueThe chromaticity coordinate of blue image and illumination for DLP projector；
xTarget、yTargetChromaticity coordinate for ideal white field to be reached；Dr, dg, db are original acquiescence RGB three of DLP projector
Lamp round dutycycle.
A kind of white balance adjustment device being applicable to DLP projector the most according to claim 4, it is characterised in that: described
Tool palette is also connected with the fan control interface of described DLP projector, is controlled with the radiator fan to projector.
A kind of white balance adjustment device being applicable to DLP projector the most according to claim 1, it is characterised in that: described
It is some the central point of image that image chroma coordinate and illumination are measured by illumination meter.
8. the white balance adjustment method being applicable to DLP projector, it is characterised in that: comprise the following steps:
A) DLP projector projects red, green, blue image three-colo(u)r successively；
B) illumination meter obtains chromaticity coordinate and the illumination of red, green, blue image three-colo(u)r successively；
C) chromaticity coordinate and the luminance calculation of the red, green, blue image three-colo(u)r that PC is obtained by illumination meter obtains DLP projector institute
Need the round dutycycle of RGB three lamp set；
D) PC is according to calculating the round dutycycle formation sequence file of RGB three lamp obtained and sequential file being imported DLP
Projector；
Wherein, also include between described step c) and step d): the round dutycycle of RGB three lamp is judged by PC,
Whether verification RGB three lamp round dutycycle falls in preset range, if the round dutycycle of gained RGB three lamp is beyond presetting
Scope, then judge to adjust unsuccessfully；
Described RGB three lamp round dutycycle DutyRed、DutyGreen、DutyBlueJudge that scope is as 18≤DutyRed≤57、26≤
DutyGreen≤68、10≤DutyBlue≤37。
A kind of white balance adjustment method being applicable to DLP projector the most according to claim 8, it is characterised in that: described
A) step before also include: the ray machine temperature of DLP projector is monitored by PC, until ray machine temperature reaches preset temperature
After carry out subsequent step；
Described d) also include after step: PC controls DLP projector projection white image, and controls illumination meter and obtain white
The chromaticity coordinate of image also returns to PC, and PC obtains verification after the chromaticity coordinate of white being compared with target chrominance coordinates value
Result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043045.1A CN104730823B (en) | 2015-01-28 | 2015-01-28 | White balance adjustment device and method suitable for DLP projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510043045.1A CN104730823B (en) | 2015-01-28 | 2015-01-28 | White balance adjustment device and method suitable for DLP projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104730823A CN104730823A (en) | 2015-06-24 |
| CN104730823B true CN104730823B (en) | 2017-01-11 |
Family
ID=53454863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510043045.1A Active CN104730823B (en) | 2015-01-28 | 2015-01-28 | White balance adjustment device and method suitable for DLP projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104730823B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227942B (en) * | 2015-08-27 | 2018-09-25 | 广东威创视讯科技股份有限公司 | System is arranged in a kind of projector's colour temperature setting method and colour temperature |
| CN105573036B (en) * | 2016-01-11 | 2018-03-23 | 四川长虹电器股份有限公司 | A kind of LASER Light Source DLP display systems and display control method |
| CN109587465B (en) * | 2016-07-19 | 2020-12-08 | 深圳光峰科技股份有限公司 | Projection system |
| CN106324965B (en) * | 2016-11-16 | 2018-06-15 | 四川长虹电器股份有限公司 | DLP laser projection automatic white balance adjusting apparatus and method |
| CN107659811B (en) * | 2017-11-10 | 2019-07-12 | 微鲸科技有限公司 | White balance calibration methods, devices and systems |
| CN110855962A (en) * | 2018-08-21 | 2020-02-28 | 西安中兴新软件有限责任公司 | Method for adjusting brightness of optical machine of projection equipment, projection equipment and storage medium |
| CN109697945A (en) * | 2018-12-19 | 2019-04-30 | 浙江零跑科技有限公司 | The white balance calibration device and its calibration method of AR-HUD |
| CN110095256B (en) * | 2019-05-08 | 2021-12-07 | 歌尔股份有限公司 | Projector optical machine testing system and method |
| CN110031186B (en) * | 2019-05-17 | 2021-11-09 | 歌尔光学科技有限公司 | Projector optical machine testing system and method |
| CN111479101B (en) * | 2020-05-14 | 2021-11-16 | 歌尔光学科技有限公司 | White balance adjusting method, adjusting device and computer readable storage medium |
| CN112995623A (en) * | 2021-02-19 | 2021-06-18 | 深圳市芯智云信息技术有限公司 | Method for color adjustment of DLP (digital light processing) optical machine |
| CN114339175A (en) * | 2021-12-20 | 2022-04-12 | 歌尔科技有限公司 | Color correction method and apparatus, projector, and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685243A (en) * | 2008-09-25 | 2010-03-31 | 卡西欧计算机株式会社 | Projector apparatus using pulse-driven light sources of different colors |
| CN102103313A (en) * | 2009-12-17 | 2011-06-22 | 三洋电机株式会社 | Projection display device, portable terminal device, and portable camera |
| JP2011247980A (en) * | 2010-05-25 | 2011-12-08 | Mitsubishi Electric Corp | Multiple screen display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2579239A4 (en) * | 2010-05-28 | 2016-01-20 | Nec Display Solutions Ltd | Projection display device |
| US8419193B2 (en) * | 2010-09-10 | 2013-04-16 | Himax Display, Inc. | Projection apparatus |
-
2015
- 2015-01-28 CN CN201510043045.1A patent/CN104730823B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685243A (en) * | 2008-09-25 | 2010-03-31 | 卡西欧计算机株式会社 | Projector apparatus using pulse-driven light sources of different colors |
| CN102103313A (en) * | 2009-12-17 | 2011-06-22 | 三洋电机株式会社 | Projection display device, portable terminal device, and portable camera |
| JP2011247980A (en) * | 2010-05-25 | 2011-12-08 | Mitsubishi Electric Corp | Multiple screen display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104730823A (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104730823B (en) | White balance adjustment device and method suitable for DLP projector | |
| TW201602556A (en) | Camera shooting method achieved through camera shooting elements | |
| CN104793453B (en) | Light source and image display | |
| US10542240B2 (en) | Projector and method for controlling rotation of phosphor wheel and color wheel in projector | |
| CN108781279A (en) | The control of color original and white point in laser-fluorophor projecting apparatus | |
| US7616314B2 (en) | Methods and apparatuses for determining a color calibration for different spectral light inputs in an imaging apparatus measurement | |
| CN108957930A (en) | The white balance adjustment method and laser projection device of laser light source colour mixture color section | |
| CN106200217A (en) | Splicing projection display system Concordance method and device | |
| CN105791783B (en) | Camera imaging color adjustment method and system | |
| CN108965841A (en) | A kind of projection optical system and method for displaying projection | |
| CN107621746A (en) | Light-emitting device and relevant projecting system | |
| CN102722076A (en) | Projection device and projection method | |
| CN102519307A (en) | Ultraviolet-infrared dynamic scene simulator | |
| CN106324965A (en) | Device and method for adjusting automatic white balance of DLP (digital light processing) laser projectors | |
| US20080292304A1 (en) | Projection Type Image Display Apparatus And Projection Type Image Display System | |
| CN104977155A (en) | Rapid measurement method of LED light distribution curve | |
| CN107864369B (en) | The compound display acquisition method of LED display | |
| TW201300171A (en) | Method for making reparation of glue quantity | |
| CN110191327A (en) | A kind of two-piece type LCD projector | |
| CN108737798A (en) | Optical projection system and projecting method | |
| CN109076677B (en) | Method for determining the contribution and orientation of a light source at a predetermined measurement point | |
| TWI599229B (en) | Control method of a projector and a projector applied to the method | |
| CN203259248U (en) | Portable colorimeter | |
| CN112995623A (en) | Method for color adjustment of DLP (digital light processing) optical machine | |
| US7829835B2 (en) | Projection type image display apparatus having a projection lens and a photographing lens movable by a same drive section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180828 Address after: 363000 1 buildings of Jingcheng Malata Industrial Park, Nanjing County, Zhangzhou, Fujian. Patentee after: Zhangzhou Malata Technology Co., Ltd. Address before: 363000 Malata (Nanjing) Industrial Park, Nanjing, Zhangzhou, Fujian Patentee before: Nanjing Malata Technology Co., Ltd. |