CN1426237A - Method and its device for realizing color 3-CCD function by monochip monochrome CCD - Google Patents
Method and its device for realizing color 3-CCD function by monochip monochrome CCD Download PDFInfo
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- CN1426237A CN1426237A CN 01137392 CN01137392A CN1426237A CN 1426237 A CN1426237 A CN 1426237A CN 01137392 CN01137392 CN 01137392 CN 01137392 A CN01137392 A CN 01137392A CN 1426237 A CN1426237 A CN 1426237A
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- ccd
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Abstract
This invention discloses a method and its device for realizing 3-CCD color full function with monolithic one-color CCD, designing a rotating disk in front of CCD, on which a related color filter is designed according to CCD spectrum sensitivity, each color filter has enough area to block CCD light sensitive surface. When rotating the filter disk, three color lights in the imaged light beam will pass through the filter in turn to be received by CCD in turn to realize colorful 3-CCD, which replace 3-CCD with monolithic CCD.
Description
Technical field
The present invention relates to method and device thereof that a kind of single CCD coloured image generates.
Background technology
Present most colour TV camera, what mostly use is the single CCD imaging sensor.As shown in Figure 1, in order to arrive coloured image, all used chromatic color filter (chromacoder) usually in CCD photosurface front in the single CCD photographs.What have then is directly color to be coated on the CCD surface.Single CCD colour TV camera is in exposure, and luminous point will pass through red color filter 1, green color filter 2 or blue color filter 3 when falling into each independent pixel, so nearly 2/3 color information is lost.To cause each color all not to be full of whole CCD sensor photosensitive face like this, not utilize the resolution capability of CCD fully, and must the utilization interpolation calculate, fill up whole CCD sensor photosensitive face with the light of different colours.Normally, the pixel that 2/3 ccd data is arranged in fact all is made, last coloured image is calculated with interpolate value by 1/3 real pixel and 2/3 is formed.The correct sampling in case chromatic color filter is failed, the pixel of calculating with interpolate value will be very far away from right value so, also will cause serious color to depart from.
Summary of the invention
The object of the present invention is to provide a kind of monochromatic CCD with monolithic to realize the method and the device thereof of similar 3-CCD coloured image function, this method need not used the interpolation calculating pixel.
The objective of the invention is to realize by following technical scheme:
A kind of monochromatic CCD of monolithic realizes that the method for 3-CCD color function is: the colour filter that red, blue, green three kinds of colors are arranged on the rotatable disk alternately, colour filter is according to color response ability and the transmitance setting of CCD, and the colour filter of each color all can fully block the CCD photosurface; Disk is placed the front of single CCD, and the halo stream by red, blue, green three kinds of colors is through disk; The rotating speed of disk is at least 25 weeks of per second, keep to rotate, and the halo stream of three kinds of colors uses full wafer CCD, takes turns receiving beam by monochromatic CCD, realizes the full resolution and the full color ability of single CCD.
In the above-mentioned method, can be by the segment beam information do not selected of absorbed of rotation by CCD, another is received by CCD in turn by the segment beam information of absorbed; Three kinds of colors have all been utilized the pixel on the entire area of whole CCD photosurface fully.
A kind of monochromatic CCD of monolithic realizes the device of 3-CCD color function, implement for cooperating single CCD, place a rotatable disk in the front of single CCD, red color filter, blue color filter and green color filter on disk alternately, the colour filter of each color all can fully block the CCD photosurface, the colour filter disk keeps rotating, and critical whirling speed is 25 weeks of per second.
The colour filter of three kinds of above-mentioned colors respectively accounts for 1/3 area on disk, alternately.
Advantage of the present invention and effect:
3 kinds of colors have all been utilized the pixel on the entire area of whole CCD photosurface fully, have obtained the complete resolution capability of CCD.Therefore, full resolution and the full color ability of single CCD have been realized.Need not use 3-CCD, then be only to utilize single CCD to absorb light beam to have unabsorbed column of colour information behind three kinds of color filter disks by rotation, the rotating speed of wheel disc surpasses 25 weeks of per second, has guaranteed making full use of of resolution, can reach the purpose that realizes colored 3-CCD.The present invention replaces 3-CCD with single CCD, have reduce cost, good effectiveness.
Description of drawings
Fig. 1 is a schematic diagram of commonly using single CCD colour filter of product;
Fig. 2 is the distribution schematic diagram of three colors of color filter disk of the present invention;
Fig. 3 is the structural representation of color filter disk of the present invention.
Embodiment
As shown in Figure 2, a kind of device of realizing the function of similar 3-CCD colour with the monochromatic CCD of monolithic, disk in a rotation of the front of single CCD design, spectral sensitivity according to CCD above the disk designs corresponding chromatic color filter, comprise red color filter 1, green color filter 2, blue color filter 3, the colour filter of each color all has enough big area, can fully block the CCD photosurface.In the time of our rotating filter, the light of three kinds of colors will pass through colour filter in turn in the light beam of imaging, and be received in turn by CCD.
As shown in Figure 3, provide a kind of rotatable color filter disk, this disk is provided with a rotating shaft 4, can link to each other with motor, and the substrate 5 of disk is provided with the colour filter 1,2,3 of three kinds of colors, respectively accounts for the area of disk 1/3, alternately.
Color filter dish design speed is 25 weeks of per second, and all can be received 25 times by photosensitive of CCD light each second of 3 kinds of colors, and the active images of Chan Shenging can guarantee the phenomenon that can not occur jumping like this.Consider to have between 3 kinds of colors and intersect and adjacent part that sampling will occur intermittently, with 25 weeks of per second be the critical whirling speed of color filter dish, to guarantee that at least its rotating speed is all when above at per second 25, can reach the continuous images effect.
The present invention replaces 3-CCD with single CCD.Light beam is by the color filter dish with above rotational speed of 25 weeks of per second, the elimination of color filter dish partial colour information, this part information is that single CCD does not need to absorb, and another part information is absorbed repeatedly repeatedly by single CCD, 3 kinds of colors have all been utilized the pixel on the entire area of whole CCD photosurface fully, have obtained the complete resolution capability of CCD.Therefore, full resolution and the full color ability of single CCD have been realized.
Claims (4)
1. the monochromatic CCD of a monolithic realizes the method for 3-CCD color function, it is characterized in that: the colour filter that red, blue, green three kinds of colors are arranged on the rotatable disk alternately, colour filter is according to color response ability and the transmitance setting of CCD, and the colour filter of each color all can fully block the CCD photosurface; Disk is placed the front of single CCD, and the halo stream by red, blue, green three kinds of colors is through disk; The rotating speed of disk is at least 25 weeks of per second, keep to rotate, and the halo stream of three kinds of colors uses full wafer CCD, takes turns receiving beam by monochromatic CCD, realizes the full resolution and the full color ability of single CCD.
2. the monochromatic CCD of a kind of monolithic as claimed in claim 1 realizes the method for 3-CCD color function, it is characterized in that: in the method, can be by the segment beam information do not selected of absorbed of rotation by CCD, another is received by CCD in turn by the segment beam information of absorbed; Three kinds of colors have all been utilized the pixel on the entire area of whole CCD photosurface fully.
3. the monochromatic CCD of a monolithic realizes the device of 3-CCD color function, implement for cooperating single CCD, it is characterized in that: place a rotatable disk in the front of single CCD, red color filter, blue color filter and green color filter on disk alternately, the colour filter of each color all can fully block the CCD photosurface, the colour filter disk keeps rotating, and critical whirling speed is 25 weeks of per second.
4. the monochromatic CCD of a kind of monolithic as claimed in claim 3 realizes the device of 3-CCD color function, it is characterized in that the colour filter of described three kinds of colors respectively accounts for 1/3 area on disk, alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01137392XA CN1170439C (en) | 2001-12-14 | 2001-12-14 | Method and its device for realizing color 3-CCD function by monochip monochrome CCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01137392XA CN1170439C (en) | 2001-12-14 | 2001-12-14 | Method and its device for realizing color 3-CCD function by monochip monochrome CCD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1426237A true CN1426237A (en) | 2003-06-25 |
| CN1170439C CN1170439C (en) | 2004-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01137392XA Expired - Lifetime CN1170439C (en) | 2001-12-14 | 2001-12-14 | Method and its device for realizing color 3-CCD function by monochip monochrome CCD |
Country Status (1)
| Country | Link |
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| CN (1) | CN1170439C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108191A (en) * | 2011-11-10 | 2013-05-15 | 捷讯研究有限公司 | Apparatus and associated method for forming color camera image |
| CN106249373A (en) * | 2016-10-11 | 2016-12-21 | 中国人民解放军陆军军官学院 | A kind of three primary colours optical filter |
-
2001
- 2001-12-14 CN CNB01137392XA patent/CN1170439C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108191A (en) * | 2011-11-10 | 2013-05-15 | 捷讯研究有限公司 | Apparatus and associated method for forming color camera image |
| CN106249373A (en) * | 2016-10-11 | 2016-12-21 | 中国人民解放军陆军军官学院 | A kind of three primary colours optical filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1170439C (en) | 2004-10-06 |
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Granted publication date: 20041006 |
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| CX01 | Expiry of patent term |