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簡介︰
BT656是一個1/3"彩色COMS數位式攝影鏡頭，感測器是採用OV7620，數位界面支持8/16位元的資料格式，所有攝影機功能例如:
自動曝光、自動白平衡、伽馬校驗、自動增益，都可以透過I2C匯流排的程序進行控制。
Features︰
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VGA
resolution (640 x 480 pixel)
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Digital video
port supports 50Hz CCIR 656/601
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Read out -
progressive / interlace
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Data format -YCrCb
4:2:2, GRB 4:2:2, RGB
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I2C
interface
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Built in
10-bit 2 ch A/D converter
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Electronic
exposure / Gain / White balance control
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Image enhancement - brightness,
contrast, gamma, saturation, sharpness, window, etc
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Internal / external
synchronization scheme
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Programmable
frame rate 0.3 to 25 frames/second
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Frame exposure / line exposure
option
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Wide dynamic range, anti
blooming, zero smearing
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Monochrome composite video
signal output (60Hz only)
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Single 5V operation
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Low power consumption (<120mW)
Specification
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Imager: Single chip 1/3 inch
OV7620 CMOS sensor
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Array Size: 660x480 pixels
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Pixel size: 7.6 x 7.6 mm
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Progressive Scanning /
interlace
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Effective image area: 4.86mm
x 3.64mm
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Electronic Exposure: 500:1
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Gamma Correction: 128 curve
settings
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S/N Ratio: >48dB
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Min Illumination: 2.5lux
@F1.4
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Operation Voltage:
5±0.5
Vdc
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Operation Current:
120mW Active
10 mW Standby
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Weight: 14g including lens
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Lens: f6mm, F1.8
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Small size : 40 x 28 mm
Applications
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Video Conferencing
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PC Multimedia
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Video Phone
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Video Mail
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Still Image
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Machine Vision
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Process control
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