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参数资料
| 型号： | ICX255AL |
| 厂商： | Sony Corporation |
| 英文描述： | Diagonal 6mm (Type 1/3) CCD Image Sensor for CCIR B/W Video Cameras |
| 中文描述： | 对角线6毫米（类型1 / 3）CCD图像传感器的无线电咨询委员会/黑白视频摄像机 |
| 文件页数： | 9/18页 |
| 文件大小： | 197K |
| 代理商： | ICX255AL |
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ICX255AK
Image Sensor Characteristics Measurement Method
Measurement conditions
1) In the following measurements, the device drive conditions are at the typical values of the bias and clock
voltage conditions.
2) In the following measurements, spot blemishes are excluded and, unless otherwise specified, the optical
black level (OB) is used as the reference for the signal output, which is taken as the value of Y signal output
or chroma signal output of the measurement system.
Color coding of this image sensor & Composition of luminance (Y) and chroma (color difference) signals
As shown in the left figure, fields are read out. The charge is
mixed by pairs such as A1 and A2 in the A field. (pairs such
as B in the B field)
As a result, the sequence of charges output as signals from
the horizontal shift register (Hreg) is, for line A1, (G + Cy),
(Mg + Ye), (G + Cy), and (Mg + Ye).
These signals are processed to form the Y signal and chroma (color difference) signal. The Y signal is formed
by adding adjacent signals, and the chroma signal is formed by subtracting adjacent signals. In other words,
the approximation:
Y = {(G + Cy) + (Mg + Ye)}
×
1/2
= 1/2 {2B + 3G + 2R}
is used for the Y signal, and the approximation:
R – Y = {(Mg + Ye) – (G + Cy)}
= {2R – G}
is used for the chroma (color difference) signal. For line A2, the signals output from Hreg in sequence are
(Mg + Cy), (G + Ye), (Mg + Cy), (G + Ye).
The Y signal is formed from these signals as follows:
Y = {(G + Ye) + (Mg + Cy)}
×
1/2
= 1/2 {2B + 3G + 2R}
This is balanced since it is formed in the same way as for line A1.
In a like manner, the chroma (color difference) signal is approximated as follows:
– (B – Y) = {(G + Ye) – (Mg + Cy)}
= – {2B – G}
In other words, the chroma signal can be retrieved according to the sequence of lines from R – Y and – (B – Y)
in alternation. This is also true for the B field.
Cy
Ye
G
Mg
Cy
Ye
G
Mg
Cy
Ye
G
Mg
Cy
Ye
G
Mg
A1
A2
B
Hreg
Color Coding Diagram
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| ICX258AL | Diagonal 6mm (Type 1/3) CCD Image Sensor for EIA B/W Video Cameras(对角线式、6毫米(1/3型)CCD图像传感器（用于EIA黑白摄像机）) |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICX258AK | 制造商:SONY 制造商全称:Sony Corporation 功能描述:Diagonal 6mm (Type 1/3) CCD Image Sensor for NTSC Color Video Cameras |
| ICX258AL | 制造商:SONY 制造商全称:Sony Corporation 功能描述:Diagonal 6mm (Type 1/3) CCD Image Sensor for EIA B/W Video Cameras |
| ICX259AK | 制造商:Sony Batteries 功能描述: |
| ICX259AL | 制造商:SONY 制造商全称:Sony Corporation 功能描述:Diagonal 6mm (Type 1/3) CCD Image Sensor for CCIR B/W Video Cameras |
| ICX262 | 制造商:SONY 制造商全称:Sony Corporation 功能描述:Timing Generator and Signal Processor for Frame Readout CCD Image Sensor |
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