Patent ID: 6128442
Filing Date: 2000-10-03
Classification: G02B,G03B,H04N

Abstract:
A trembling compensation and control apparatus that detects an angular displacement of an optical axis of a focusing optical system and drives and controls an compensation optical system, so as to compensate a trembling of an image, comprising:an angular velocity sensor that detects said angular displacement velocity of said optical axis of said focusing optical system;a low-cut filter that processes and calculates an angular displacement velocity signal output from said angular velocity sensor, cuts a low frequency component from said angular displacement velocity signal and outputs a valid angular displacement velocity signal;an integration portion that converts said valid angular displacement velocity signal through a calculation into an angular displacement signal; anda level detector that detects said valid angular displacement velocity signal,wherein said low-cut filter and said integration portion are modified in calculation processing when said level exceeds a predetermined level, and said low-cut filter and said integration portion are reset in calculation processing when said level becomes within said predetermined level again.