Observation optical system having hand-vibration compensation sy

Details Observation optical system having hand-vibration compensation sy Observation optical system having hand-vibration compensation sy

1998-12-01

2000-05-02

Nguyen, Thong

Optical: systems and elements

Image stabilization

By movable refractive structure

359407, 359554, G02B 2764, G02B 2300

Patent

active

060579625

ABSTRACT:
Disclosed is an observation optical system such as a binocular. A telescopic optical system of the observation optical system is provided with a plurality of optical elements, which are arranged such that the observation optical system has a first optical axis horizontally extending and a second optical axis vertically extending when the binocular is held horizontally by a user. The observation optical system is further provided with first and second compensation optical systems that are movable to shift optical paths of light passed through the first and second compensation optical systems to compensate trembling of image due to hand vibration applied to the observation optical system. The compensation optical systems are constituted and arranged such that movement thereof will not be affected by the gravity.

REFERENCES:
patent: 4013339 (1977-03-01), Ando et al.
patent: 5231534 (1993-07-01), Kato
patent: 5280387 (1994-01-01), Maruyama
patent: 5387999 (1995-02-01), Hayashi
patent: 5461513 (1995-10-01), Maruyama
patent: 5754339 (1998-05-01), Kanai et al.
patent: 5768016 (1998-06-01), Kanbara
patent: 5917653 (1999-06-01), Taniguchi

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