Common aperture vision system

Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface

Reexamination Certificate

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Details

C359S618000, C359S629000, C359S630000, C359S637000, C353S031000, C353S069000, C356S419000, C356S401000, C250S226000

Reexamination Certificate

active

11176690

ABSTRACT:
An optical device comprises a dichroic beamsplitter for splitting an object beam into a reflected beam having a first waveband and a transmitted beam having a second waveband; an astigmatism-correcting lens element, disposed in the optical path of the transmitted beam; and a coma-correcting lens element, disposed in the optical path of the transmitted beam.

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