Patent
1982-05-13
1984-04-24
Corbin, John K.
350173, 350443, G02B 2710, G02B 1708
Patent
active
044444648
ABSTRACT:
A dual aperture, off-axis catadioptic Schmidt objective (40) is formed by symmetrically aligning two pairs of Schmidt objectives (12, 14) on opposite sides of a common plane (x, z). Each objective has a spherical primary mirror (16/18) with a spherical focal plane (44/46) and center of curvature (20/22) aligned along an optic axis (36/38) laterally spaced apart from the common plane. A multiprism beamsplitter (44/46) with buried dichroic layers (81-83) and a convex entrance (48) and concave exit (52a-52f) surfaces optically concentric to the center of curvature may be positioned at the focal plane. The primary mirrors of each objective may be connected rigidly together and may have equal or unequal focal lengths.
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Bushnell Robert E.
Corbin John K.
Dzierzynski Paul
Manning John R.
The United States of America as represented by the Administrator
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