Chromatically corrected virtual image visual display

Details Chromatically corrected virtual image visual display Chromatically corrected virtual image visual display

1978-10-23

1980-06-10

Clark, Conrad J.

350226, G02B 1316, G02B 916

Patent

active

042069700

ABSTRACT:
An in-line, three element, large diameter, optical display lens having a front convex-convex element, a central convex-concave element, and a rear convex-convex element. The lens, used in flight simulators, magnifies an image presented on a televison monitor and, by causing light rays leaving the lens to be in essentially parallel paths, reduces eye strain of the simulator operator.

REFERENCES:
patent: 2731884 (1956-01-01), Brendal
patent: 2900871 (1959-08-01), Baker

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