发明名称 |
Light source device for endoscopes |
摘要 |
A light source device for endoscopes includes a light source for emitting white light containing the components of light belonging to a visible region and wavelength bands other than the visible region; at least, a rotary color separating filter on a field sequential system; and an infrared cutoff filter for blocking light in an infrared region, of a wavelength band of the white light. When the rotary color separating filter is disposed in an optical path from the light source to a light guide, an interference filter in which an interference film is applied to a transparent base plate is placed in the optical path. This arrangement obviates the defect of burning the entrance end of the light guide or of breaking the infrared cutoff filter.
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申请公布号 |
US5823943(A) |
申请公布日期 |
1998.10.20 |
申请号 |
US19950509944 |
申请日期 |
1995.08.01 |
申请人 |
OLYMPUS OPTICAL CO., LTD |
发明人 |
TOMIOKA, MAKOTO;HASEGAWA, AKIRA;MATSUMOTO, SHINYA;SUZUKI, TAKAYUKI |
分类号 |
A61B1/04;(IPC1-7):A61B1/06 |
主分类号 |
A61B1/04 |
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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