Optical system and optical apparatus provided with the same

Details Optical system and optical apparatus provided with the same Optical system and optical apparatus provided with the same

2006-11-07

2006-11-07

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

Reexamination Certificate

active

07131740

ABSTRACT:
An optical system has a plurality of optical surfaces including a rotational-symmetrical optical surface and a reflection-type varaible optical-property element. The reflection-type variable optical-property element is interposed on the optical path between two optical surfaces, and a deflection angle θ of the optical axis caused by the reflection-type variable optical-property element satisfies the following condition:in-line-formulae description="In-line Formulae" end="lead"?10°<θ<67°.in-line-formulae description="In-line Formulae" end="tail"?

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patent: 2004-109694 (2004-04-01), None

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