Fiber optic bundle beam expander with image intensifier

Details Fiber optic bundle beam expander with image intensifier Fiber optic bundle beam expander with image intensifier

1976-10-14

1978-02-28

Henry, Jon W.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

350 9625, 350 52, 350167, 250227, H01J 3150, G02B 516, G02B 2308

Patent

active

040769780

ABSTRACT:
A tapered or twisted fiber optic bundle having a unidirectional diffuser at an output face thereof defines a fiber optic bundle beam expander. In a viewing system, such a beam expander is provided at the output of an image intensifier tube for unidirectionally spreading rays of an amplified image in a horizontal direction for biocular viewing.

REFERENCES:
patent: 2510344 (1950-06-01), Law
patent: 2800054 (1957-07-01), Allison
patent: 2992587 (1961-07-01), Hicks et al.
patent: 3043910 (1962-07-01), Hicks
patent: 3453035 (1969-07-01), Walther
patent: 3907403 (1975-09-01), Maeda

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