Optical: systems and elements – Diffraction – From zone plate
Patent
1994-08-08
1997-11-25
Sugarman, Scott J.
Optical: systems and elements
Diffraction
From zone plate
359566, 359785, 359793, G02B 2744, G02B 904, G02B 914
Patent
active
056918470
ABSTRACT:
An athermalized and achromatized optical system (10, 30) has a lens group (12, 32) focusing energy on a focal plane (14, 42). The lens group (12, 32) includes at least two optical elements (22, 24, 26, 34, 36) of different material and a diffractive optical element (28, 40). The system (10, 30) enables athermalization and achromatization of the optical system.
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Denson-Low Wanda K.
Hughes Aircraft Company
Lindeen III Gordon R.
Sales Michael W.
Sugarman Scott J.
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