Image blur suppression device of a camera which aligns an image

Details Image blur suppression device of a camera which aligns an image Image blur suppression device of a camera which aligns an image

1995-06-16

1997-04-08

Mathews, A. A.

Photography

Camera shake sensing

Having stabilization system

359554, G03B 3900

Patent

active

056192932

ABSTRACT:
An image blur suppression device which moves an image blur suppression lens to compensate for image blur, such as in a camera. A supporting member supports the image blur suppression lens and experiences sag due to gravity. The image blur suppression lens is positioned to approximately align the optical center of the image blur suppression lens with the optical axis of a main optical system in accordance with the amount of sag of the supporting member. Also, the image blur suppression lens can be positioned to approximately align the optical center of the image blur suppression lens with the center of the range of motion of the image blur suppression lens in accordance with the amount of sag of the supporting member. Additionally, an actuator can generate a force between a magnet and a coil to move the image blur suppression lens. The image blur suppression lens is positioned to approximately align the magnetic center of the magnet with the center of the winding of the coil in accordance with the amount of sag of the supporting member. Further, a position detecting unit can detect the position of the image blur suppression lens by emitting light from a light emitting unit, through a slit, and to a light receiving element. The image blur suppression lens is positioned to approximately align the center of the light receiving range with the approximate center of the slit in accordance with the amount of sag of the supporting member.

REFERENCES:
patent: 5084724 (1992-01-01), Maeno
patent: 5153633 (1992-10-01), Otani
patent: 5266988 (1993-11-01), Washisu
patent: 5479236 (1995-12-01), Tanaka

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