Image stabilized optical system

Details Image stabilized optical system Image stabilized optical system

1995-05-02

1998-08-25

Nguyen, Thong

Optical: systems and elements

Image stabilization

By movable refractive structure

359554, G02B 2764

Patent

active

057988633

ABSTRACT:
An image stabilized optical system includes a casing, an objective system, an eyepiece system, a gimbal connected to the casing via a shaft and capable of oscillating, an erect prism attached to the gimbal, a motor attached to the gimbal, an inertial rotor supported by a rotating rod of the motor, and a damper attached to the gimbal. The damper includes a viscoelastic member and has a first end attached to the gimbal and a second, free end spaced from the casing and the shaft. An image can be highly stabilized by efficiently suppressing in the damper vibrations (resonance) generated in the gimbal. Further, size, weight, and cost reductions, and easy manufacture of an image stabilized optical system are attained.

REFERENCES:
patent: 2518632 (1950-08-01), O'Brien et al.
patent: 3582180 (1971-06-01), Gass
patent: 3597022 (1971-08-01), Waldron
patent: 4235506 (1980-11-01), Saito et al.
patent: 4615590 (1986-10-01), Alvarez et al.
patent: 5206762 (1993-04-01), Kasahara et al.
patent: 5539575 (1996-07-01), Kakizawa et al.

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