发明名称 |
Color image pickup device |
摘要 |
The invention provides a color image pickup device in which image light from a white object to be photographed or image light integrated by a diffusion plate or the like is incident on a pickup tube through an electrochromic element. Two primary color signals are separated from a video signal from the pickup tube, a voltage corresponding to a difference between the two primary color signals is detected by a differential amplifier, and the voltage is then applied across an electrochromic element. A spectral transmittance of which is then controlled, thereby achieving an optimal white balance.
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申请公布号 |
US4527189(A) |
申请公布日期 |
1985.07.02 |
申请号 |
US19830467883 |
申请日期 |
1983.02.18 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA;NIPPON KOGAKU K.K. |
发明人 |
OOI, KAZUSHIGE;FUJIWARA, SHIGEKAZU;YOSHIDA, NOBUAKI;MORI, YOSHIO |
分类号 |
H04N9/07;G02F1/15;H04N9/04;H04N9/73;(IPC1-7):H04N9/535 |
主分类号 |
H04N9/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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