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
Methods and apparatus for determining a phase error in signals
Disposable and tamper-resistant RFID lock
Charging current control method and charging system
Taxi cab key chain
Data storage device and block selection method for a flash memory
System and method for wireless messaging in a wireless communication system
Method for manufacturing a magnet coil configuration using a slit band-shaped conductor
  Randomly Featured Patents
Amorphous low-retentivity alloy
Tape player
Three way; outside, inside, bullnose corner
Liquid crystal display and driving method thereof
Methods and apparatus for reducing the size of code with an exposed pipeline by encoding NOP operations as instruction operands
Centrifugal compressor having switchable two passages
Current limited output driver for a gate array circuit
Slide fastener element construction
Information providing method for vehicle and information providing apparatus for vehicle
Aluminum/plastic combination accordion storm shutter blade