Compact window viewing system

Details Compact window viewing system Compact window viewing system

1996-10-25

1998-06-30

Phan, James

Optical: systems and elements

Deflection using a moving element

Pivotal or rotational element

359223, 359894, G02B 2608

Patent

active

057742537

ABSTRACT:
A wedge window changes the direction of radiation passing through the window to shorten the window required for unvignetted viewing. An orthogonal reflection pointing mirror reduces the window size that is required for unvignetted viewing through a window over a finite range of viewing angles. A wedge window is used in combination with an orthogonal reflection pointing mirror to reduce the window size that is required for unvignetted viewing over a finite range of viewing angles that includes large incidence angles.

REFERENCES:
patent: 4955693 (1990-09-01), Bobba

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