Observation optical system and observation device

Details Observation optical system and observation device Observation optical system and observation device

2005-07-19

2005-07-19

Thompson, Tim (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S691000, C359S680000

Reexamination Certificate

active

06919998

ABSTRACT:
An observation optical system including an objective optical part which forms an image of an object, an image inverting part which converts an image formed by said objective optical part into an erect image, and an eyepiece optical part which guides the erect image converted by said image inverting part to an observer. The objective optical part has a first lens unit with a negative power and a second lens unit with a positive power arranged from an object side in the order named, and said second lens unit is movable in a direction including a component perpendicular to an optical axis to stabilize an image.

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patent: 10-186228 (1998-07-01), None
patent: 2000-352664 (2000-12-01), None

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