CN100405825C - Modules of digital camera - Google Patents
Modules of digital camera Download PDFInfo
- Publication number
- CN100405825C CN100405825C CNB2004100919582A CN200410091958A CN100405825C CN 100405825 C CN100405825 C CN 100405825C CN B2004100919582 A CNB2004100919582 A CN B2004100919582A CN 200410091958 A CN200410091958 A CN 200410091958A CN 100405825 C CN100405825 C CN 100405825C
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- digital
- camera module
- image sensor
- code camera
- filter
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Abstract
The present invention relates to a digital camera module which an image sensor, a color wheel and a lens assembly, wherein the image sensor comprises a micro lens assembly, a light receiving unit and a signal processing circuit board arranged in sequence from top to bottom. The color wheel comprises a color light filter and a drive motor, and the image sensor is positioned below the digital camera module. The color wheel is positioned between the image sensor and the lens assembly.
Description
[technical field]
The invention relates to a kind of digital-code camera module, especially about a kind of digital-code camera module that the high contrast image is had better color restoration capability.
[background technology]
Along with Development of Multimedia Technology, digital camera, video camera more and more are consumers in general's favor, when people's logarithmic code camera, video camera are pursued miniaturization, its quality of image of shooting object is also proposed higher requirement, the image frame of promptly wishing shot object is clear, and the image quality of object is in the quality that depends on each optical module in the digital camera to a great extent.
Image sensor is optical module indispensable in the digital-code camera module, sees also Fig. 1, and existing image sensor mainly comprises over cap 10, lenticule group 30, colored filter matrix 50, light receiving unit 70 and signal processing circuit board 90.Wherein over cap 10 is positioned at the front end of image sensor, generally adopts plate glass or transparent resin to make, and is not subjected to external force or pollutant effects in order to inner each assembly of protection image sensor.Lenticule group 30 is the matrixes that are arranged in two-dimensional space by a plurality of lenticules, and it can strengthen the light intensity of the light that is incident to light receiving unit 70.But 50 filterings of colored filter matrix are incident light partly, it typically is the three primary colors filter, promptly red, green and blue color filter, this filter matrix pixel of corresponding light receiving unit 70 is respectively arranged, to obtain color information, coloured image can obtain by making up from all output signals of pixel.Light receiving unit 70 is that it converts the light signal that receives to the signal of telecommunication because a plurality of pixel components of arranging in the two-dimensional space are formed, and each pixel is a photoelectric conversion component.Signal processing circuit board 90 is in order to the driving pixel, and the signal of telecommunication that pixel produces is handled, and forms picture output signal.
Can only accept the color component that produces by its corresponding colored filter because light is accepted unit 70, its actual color need obtain i.e. color rendition by the color component of accepting to accept the unit with the light around it by calculating.So when the image of taking had the handing-over part of high contrast, its color rendition mistake will occur when calculating, and causes the color mistake, make that the image color of digital-code camera module picked-up is different with actual color.
Be directed to this, be necessary to provide a kind of digital-code camera module that the high contrast image is had better color rendition.
[summary of the invention]
The object of the present invention is to provide a kind of digital-code camera module that the high contrast image is had better color rendition.
To achieve these goals, the invention provides a kind of digital-code camera module, comprise image sensor, colour wheel and set of lenses, wherein image sensor comprises lenticule group, light receiving unit and the signal processing circuit board of arranging successively from top to bottom and being provided with, colour wheel comprises colored filter and CD-ROM drive motor, image sensor is positioned at the below of digital-code camera module, and colour wheel is positioned in the middle of image sensor and the set of lenses.
Digital-code camera module of the present invention is cancelled the colored filter matrix on the existing image sensor, and a colour wheel is set in image sensor top, the rotation of the colored filter that is provided with by colour wheel can make the light on the image sensor accept the unit and receive real color, and do not need to obtain by the color component calculating that the light around it is accepted to accept the unit, so can avoid mistake in computation of high contrast image and color mistake, digital-code camera module promptly of the present invention has color rendition preferably to the high contrast image.
[description of drawings]
Fig. 1 is the structural representation of existing image sensor;
Fig. 2 is the structural representation of digital-code camera module of the present invention;
Fig. 3 is the image sensor structure schematic diagram of digital-code camera module of the present invention;
Fig. 4 is the colour wheel schematic diagram of digital-code camera module of the present invention.
[embodiment]
See also Fig. 2, digital-code camera module 2 of the present invention comprises image sensor 20, colour wheel 22, set of lenses 23 and other assembly.Please consult Fig. 3 simultaneously, image sensor 20 mainly comprises over cap 201, lenticule group 202, light receiving unit 203 and signal processing circuit board 204, and these each parts are arranged successively from top to bottom and are provided with.As shown in Figure 3, colour wheel 22 comprises colored filter 220 and CD-ROM drive motor (figure does not show).Image sensor 20 is positioned at the below of this digital-code camera module 2, and colour wheel 22 is positioned at the centre of image sensor 20 and set of lenses 23, also can be positioned between each lens of set of lenses 23 or the top of set of lenses 23.
Over cap 201 is positioned at the upper end of image sensor 20, generally adopts plate glass or transparent resin to make, and is immobilizated in inner each assembly of image sensor in order to protection and is not subjected to external force or pollutant effects.Lenticule group 202 is the matrixes that are arranged in two-dimensional space by a plurality of lenticules, and it can strengthen the light intensity of the light that is incident to light receiving unit 203.
Signal processing circuit board 204 comprises that be the A/D converter of digital signal and the digital signal processing unit that utilizes digital signal formation picture output signal in order to drive pixel with the drive circuit of picked up signal electric charge, in order to the switching signal electric charge.
Colored filter 220 on the colour wheel 22 is by red, green and the blue formed circular filter of three looks fan-shaped filter, in addition, also can serve as reasons redness, green, blue three looks of this colored filter 220 adds the formed circular filter of a plurality of blocks of white transparent block, this colored filter 220 annular or spirality filter that redness, green, blue three look blocks form of also can serving as reasons.CD-ROM drive motor can drive this colored filter 220 high speed rotating, thereby will shine by the color of extraneous image on light receiving unit 203, and form digital signal and produce picture output signal after the light signal Synchronous Processing that 204 pairs of light receiving units of signal processing circuit board 203 receive.
Because digital-code camera module 2 of the present invention is cancelled the colored filter matrix on the existing image sensor, and a colour wheel 22 is set in image sensor 20 tops, the rotation of the colored filter 220 that is provided with by colour wheel 22 can make the light on the image sensor accept unit 203 and receive real color, and do not need to obtain by the color component calculating that the light around it is accepted to accept the unit, so can avoid mistake in computation of high contrast image and color mistake, 2 pairs of high contrast images of digital-code camera module promptly of the present invention have color rendition preferably.
Claims (8)
1. digital-code camera module, it is characterized in that: it comprises image sensor, colour wheel and set of lenses, wherein image sensor comprises lenticule group, light receiving unit and the signal processing circuit board of arranging successively from top to bottom and being provided with, colour wheel comprises colored filter and CD-ROM drive motor, image sensor is positioned at the below of this digital-code camera module, and colour wheel is positioned in the middle of image sensor and the set of lenses.
2. digital-code camera module as claimed in claim 1 is characterized in that: described colored filter serve as reasons redness, green and the blue formed circular filter of three looks fan-shaped filter.
3. digital-code camera module as claimed in claim 1 is characterized in that: serve as reasons redness, green, blue three looks of described colored filter adds the formed circular filter of a plurality of blocks of white transparent block.
4. digital-code camera module as claimed in claim 1 is characterized in that: described colored filter annular or the spirality filter that redness, green, blue three look blocks form of serving as reasons.
5. digital-code camera module as claimed in claim 1 is characterized in that: described image sensor further comprises an over cap, and it is positioned at the upper end of image sensor.
6. digital-code camera module as claimed in claim 5 is characterized in that: described over cap adopts plate glass or transparent resin to make.
7. digital-code camera module as claimed in claim 1 is characterized in that: described light receiving unit is because a plurality of pixel components of arranging in the two-dimensional space are formed, and each pixel component is a photoelectric conversion component.
8. digital-code camera module as claimed in claim 1 is characterized in that: described signal processing circuit board comprises that be the A/D converter of digital signal and the digital signal processing unit that utilizes digital signal formation picture output signal in order to drive pixel with the drive circuit of picked up signal electric charge, in order to the switching signal electric charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100919582A CN100405825C (en) | 2004-12-30 | 2004-12-30 | Modules of digital camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100919582A CN100405825C (en) | 2004-12-30 | 2004-12-30 | Modules of digital camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798251A CN1798251A (en) | 2006-07-05 |
| CN100405825C true CN100405825C (en) | 2008-07-23 |
Family
ID=36818981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100919582A Expired - Fee Related CN100405825C (en) | 2004-12-30 | 2004-12-30 | Modules of digital camera |
Country Status (1)
| Country | Link |
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| CN (1) | CN100405825C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9270953B2 (en) * | 2014-05-16 | 2016-02-23 | Omnivision Technologies, Inc. | Wafer level camera having movable color filter grouping |
| CN104159049A (en) * | 2014-08-15 | 2014-11-19 | 北京思比科微电子技术股份有限公司 | Image sensor and working method thereof |
| CN105472357A (en) * | 2014-08-18 | 2016-04-06 | 比亚迪股份有限公司 | Imaging method, imaging device and shooting system |
| CN106506915A (en) * | 2016-11-15 | 2017-03-15 | 深圳天珑无线科技有限公司 | A kind of camera module and digital equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183576A (en) * | 1996-11-22 | 1998-06-03 | 安承均 | Filter assembly of camera |
| JP2003116065A (en) * | 2001-10-03 | 2003-04-18 | Sony Corp | Photographing optical system, and photographing camera apparatus |
| WO2003077568A1 (en) * | 2002-03-06 | 2003-09-18 | Vectron, Inc. | Color image capture device and method |
-
2004
- 2004-12-30 CN CNB2004100919582A patent/CN100405825C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183576A (en) * | 1996-11-22 | 1998-06-03 | 安承均 | Filter assembly of camera |
| JP2003116065A (en) * | 2001-10-03 | 2003-04-18 | Sony Corp | Photographing optical system, and photographing camera apparatus |
| WO2003077568A1 (en) * | 2002-03-06 | 2003-09-18 | Vectron, Inc. | Color image capture device and method |
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| Publication number | Publication date |
|---|---|
| CN1798251A (en) | 2006-07-05 |
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