发明名称 |
METHOD OF AND APPARATUS FOR RESTORING THE LIGHT TRANSMITTANCE OF AN IMAGE TRANSMITTING OPTICAL FIBER BUNDLE USED IN A FIBEROPTIC ENDOSCOPE |
摘要 |
Exposure of a fiberoptic endoscope X-ray or gamma -ray irradiation causes discoloration of fiber bundle with a reduction in light transmittance and makes observation or examination difficult. According to the invention the irradiation-induced reduction in light transmittance of the image transmitting fiber bundle 52 is eliminated by visible light radiation thereto through its end using a light source 64 attachable to the exit end of the endoscope. Visible light radiation having short wavelength causes the transmittance to recover to that before irradiation in a short period of time. |
申请公布号 |
DE3268730(D1) |
申请公布日期 |
1986.03.13 |
申请号 |
DE19823268730 |
申请日期 |
1982.02.17 |
申请人 |
FUJI PHOTO OPTICAL CO., LTD. |
发明人 |
KOJIMA, TAKUO;ISHIBASHI, KUNIAKI |
分类号 |
A61B1/00;G02B6/42;G02B23/26;(IPC1-7):G02B6/00 |
主分类号 |
A61B1/00 |
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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