Shake correction device

Abstract

Abstract PURPOSE:To prevent undesired pattern fluctuation by discriminating whether a timewise change in the pattern is a monotonous increase or a monotonous decrease in a prescribed direction from the result of detection of a change detection means and controlling a drive means according to the result of discrimination. CONSTITUTION:Blur detection information 18a outputted from a blur detection circuit 18 is fed to integration circuits 36, 38, where the information is integrated. When panning or tilting is discriminated by an integration circuit or a comparator circuit 40, a subtractor 46 subtracts panning/tilting information 38a from an output of an adder 44. Thus, the saturation of the integration circuit 36 due to panning/tilting is eliminated and then collision of a variable apex angle prism 10 is eliminated. Moreover, if the panning/tilting is not implemented at an equal speed and uneven irregularly, the effect of blur correction appears to cancel the unevenness, then the comparatively small panning/ tilting close to equal speed is implemented.

Inventors

• 👤 Kunihiko Yamada
• 👤 邦彦 山田
• 👤 Shigeru Ogino
• 👤 滋 荻野

Bibliographic Details