发明名称 |
Optoelectronic shutter, method of operating the same and optical apparatus including the optoelectronic shutter |
摘要 |
An optoelectronic shutter, a method of operating the same, and an optical apparatus including the optoelectronic shutter are provided. The optoelectronic shutter includes a phototransistor which generates an output signal from incident input light and a light emitting diode serially connected to the phototransistor. The light emitting diode outputs output light according to the output signal, and the output signal is gain-modulated according to a modulation of a current gain of the phototransistor. |
申请公布号 |
US9151711(B2) |
申请公布日期 |
2015.10.06 |
申请号 |
US201314050839 |
申请日期 |
2013.10.10 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
Cho Yong-chul;Jang Jae-hyung;Park Yong-hwa;Park Chang-soo;Song Jong-In |
分类号 |
G01N21/41;H01L27/146;H01L31/153;H01L31/18;H05B33/08;H01L27/148;H01L27/15 |
主分类号 |
G01N21/41 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A method of operating an optoelectronic shutter including a phototransistor which generates an output signal from incident input light and a light emitting diode serially connected to the phototransistor, wherein the light emitting diode outputs output light according to the output signal, and the output signal is gain-modulated according to a modulation of a current gain of the phototransistor, the method comprising:
modulating a base current of the phototransistor to modulate a current gain of the phototransistor. |
地址 |
Suwon-si KR |