Very-low-temperature fiberscope

Details Very-low-temperature fiberscope Very-low-temperature fiberscope

1985-07-24

1987-11-17

Sikes, William L.

350 9610, 350 9624, G02B 514, G02B 606

Patent

active

047070757

ABSTRACT:
A fiberscope has a light source and a light guide for leading light emitted from the source onto an object disposed in liquid helium. A transmission system for transmitting the image of the object has an image guide. A body tube is fixed to one end of the image guide and faces the object. Objective lenses are disposed in the body tube to project the image of the object onto the one end face of the image guide. An eyepiece is fixed to the other end of the image guide, through which the image of the object is viewed. The interior of the body tube is kept under vacuum.

REFERENCES:
patent: 3709612 (1973-01-01), Clemens
patent: 3809893 (1974-05-01), Dobras
patent: 4209228 (1980-06-01), Chikama
patent: 4341205 (1982-07-01), Hosono et al.
patent: 4558691 (1985-12-01), Okada
patent: 4620769 (1986-11-01), Tsuno
Journal of Nippon Aerospace Society, vol. 26, No. 290 (Mar. '78) pp. 32-37, K. Kuribayashi et al: "Mechanical Properties of Some Aluminum Alloys at Cryogenic Temperature".

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