The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2013
Filed:
Dec. 22, 2009
Yong-chul Cho, Suwon-si, KR;
Jae-hyung Jang, Seoul, KR;
Yong-hwa Park, Yongin-si, KR;
Chang-soo Park, Daejeon, KR;
Jong-in Song, Daejeon, KR;
Yong-chul Cho, Suwon-si, KR;
Jae-hyung Jang, Seoul, KR;
Yong-hwa Park, Yongin-si, KR;
Chang-soo Park, Daejeon, KR;
Jong-in Song, Daejeon, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Gwangju Institute of Science and Technology, Gwangju, KR;
Abstract
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.