Patent ID: 6356713
Filing Date: 2002-03-12
Classification: G03B

Abstract:
A blurring correction apparatus adapted to be mounted on an image taking apparatus, said blurring correction apparatus comprising:blurring detecting means for detecting a blurring state of the image taking apparatus; refractive index variable electric deflection means, arranged in an image taking optical system of the image taking apparatus, for correcting an adverse effect resulting from blurring of the image taking apparatus; controlling means for controlling the electric deflection means in accordance with an output of said blurring detecting means; and refractive index state detecting means for detecting a refractive index state of said electric deflection means; wherein said controlling means performs operation control of said electric deflection means based on a detection result of said refractive index state detecting means; and wherein said refractive index state detecting means includes: means for emitting light to said electric deflection means; means for receiving the light from said light emitting means through said electric deflection means; and detecting means for detecting the refractive index state of said electric deflection means in accordance with an output of said light receiving means.