发明名称 |
STEUERUNGSEINRICHTUNG ZUM STEUERN DER AUFNAHMELICHTMENGE FUER EIN ENDOSKOP |
摘要 |
A photographing light quantity controller for an endoscope, which is used to control the quantity of illuminating light when a photograph is to be taken through the endoscope. The photographing light quantity controller comprises a device for supplying light for illuminating an object to the endoscope, a device for detecting a quantity of light that is reflected from the object and for outputting a signal in accordance with the detected quantity of light, and a device for amplifying the signal, with the amplifying device having a plurality of amplification factors which can be selected as desired. A photographing light quantity control device is provided for controlling the quantity of illuminating light that is supplied to the endoscope when a photographing operation is conducted, on the basis of the output signal from the amplifying device. A device is also provided for automatically switching over the amplification factors of the amplifying device from one to another in accordance with the brightness of the object. |
申请公布号 |
DE4128921(A1) |
申请公布日期 |
1992.03.05 |
申请号 |
DE19914128921 |
申请日期 |
1991.08.30 |
申请人 |
ASAHI KOGAKU KOGYO K.K., TOKIO/TOKYO, JP |
发明人 |
FURUYA, KATSUHIKO;NAKASIMA, MASAAKI;ENOMOTO, TAKAYUKI;TAKAHASHI, TADASHI, TOKIO/TOKYO, JP |
分类号 |
G02B23/26;A61B1/04;A61B1/06;A61B1/07;G02B23/24 |
主分类号 |
G02B23/26 |
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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