发明名称 |
BIOLOGICAL DETECTING SYSTEM AND FINGERPRINT COLLATING SYSTEM EMPLOYING SAME |
摘要 |
A biological detecting system comprising a light source; a condensing optical system for condensing a light beam from the light source and irradiating the surface of a sample to be detected with a spot of light, an imaging optical system for condensing light reflected or scattered by an irradiated portion of the sample and forming an image of the irradiated portion at a predetermined location, and a photodetector arranged at the predetermined location to detect the size of the image of the irradiated portion and output a detection signal indicating the detected size of the image.
|
申请公布号 |
CA1332977(C) |
申请公布日期 |
1994.11.08 |
申请号 |
CA19890611463 |
申请日期 |
1989.09.14 |
申请人 |
FUJITSU LIMITED |
发明人 |
KATO, MASAYUKI;SHINZAKI, TAKASHI;IGAKI, SEIGO;YAMAGISHI, FUMIO;IKEDA, HIROYUKI |
分类号 |
A61B5/117;G06K9/00;G07C9/00;(IPC1-7):G06K9/20 |
主分类号 |
A61B5/117 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|