Patent ID: 6067424
Filing Date: 2000-05-23
Classification: G03B

Abstract:
A double dial mechanism for a camera, the camera including a camera body with an opening window formed therein, a support base plate supported inside the camera body and closing the window opening and a cylindrical boss protruding from the support base plate through the opening window, the double dial mechanism comprising:first and second coaxially-arranged rotatable dials; andfirst and second dial rotational position detecting mechanisms;wherein said first and said second dial rotational position detecting mechanisms are located at a constant radial distance from a center of said coaxially rotatable dials;a shaft portion provided on said first dial, said shaft portion extending into and being supportable by the cylindrical boss, and said second dial engaging with an outer circumference of the cylindrical boss;said first rotational position detecting mechanism being arranged at an inner end portion of said shaft portion of said first dial, said inner end portion being positioned within the camera body; andsaid second rotational position detecting mechanism being arranged between said second dial and the support base plate.