发明名称 |
Color sensing method and device therefor |
摘要 |
A method for sensing the color of incident light with a color sensing device, the color sensing device being a photoelectric device comprising an n-type or p-type amorphous silicon layer, being characterized in the following steps; measuring a first photocurrent of the photoelectric device generated by incident light when an electrical voltage having a predetermined parity is applied thereto; measuring a second photocurrent of the photoelectric device generated by the same incident light when another electrical voltage having a parity opposite to the predetermined parity is applied thereto, calculating the ratio of the first photocurrent to the second photocurrent; and identifying the color of incident light according to the ratio obtained. A color sensing device, comprising: two elements including an n-type or p-type amorphous silicon layer; an electric power source for applying a positive voltage and a negative voltage to the two elements at the same time, respectively; and a divider means for calculating a ratio of the two photocurrents which flows in each elements.
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申请公布号 |
US4804833(A) |
申请公布日期 |
1989.02.14 |
申请号 |
US19860904189 |
申请日期 |
1986.09.05 |
申请人 |
MINOLTA CAMERA KABUSHIKI KAISHA |
发明人 |
MATSUBARA, KEN;IINO, SHUJI;KITANO, HIROHISA |
分类号 |
G01J3/50;H01L31/0216;H01L31/0248;H01L31/09;H01L31/11;H01L31/18;(IPC1-7):G01J3/50 |
主分类号 |
G01J3/50 |
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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