Resources Contact Us Home
Film back exchangeable camera and exchangeable film back

Image Number 3 for United States Patent #6402396.

A film back exchangeable camera has a camera body and a film back that can be attached to and detached from the camera body. The camera includes: an aperture formed in the film back, through which photographing light flux passes; a film supplying mechanism that moves a film along a film running surface defined at a rear of the aperture; a shielding member, which is built in the film back and located movably in front of the film running surface and which is movable between a shielding state where a film is not exposed to light and a light transmissible state where the light is transmissible to the film to expose the film; a shielding member driving mechanism that moves the shielding member from the shielding state to the light transmissible state; a forward/reverse rotation motor; and a motor linking switch mechanism by which the forward/reverse rotation motor is switchingly linked with either one of the film supplying mechanism and the shielding member driving mechanism according to a forward rotation and a reverse rotation of the forward/reverse rotation motor. The film supply is executed by the forward rotation of the forward/reverse rotation motor, and the shielding member is moved from the shielding state to the light transmissible state by the reverse rotation of the forward/reverse rotation motor.

  Recently Added Patents
Sharing networks determined by sharing of items between individuals
Tunnel magnetoresistance read head with narrow shield-to-shield spacing
Gestures for presentation of different views of a system diagram
Web-based system and method for video analysis
Disk array apparatus and firmware update method therefor
Photoelectric conversion module
  Randomly Featured Patents
Electrolytic cleaning of a shrouded blade assembly
Dynamic seal assembly
Purification of penicillin derivative
Beverage container package and dispenser
Address reduction scheme implementing rotation algorithm
Detecting correlations between data representing information
Extrusion system
Structure and process for optimizing the characteristics of I.sup.2 L devices
Dirt filtering and collecting apparatus for vacuum cleaner
Inhibiting wax deposition from a wax-containing oil