Camera capable of reading/writing information of photo film cassette

• Main Authors: KOBAYASHI; KIYOTAKA, IWAI; FUMIO, YOSHIDA; YUTAKA
• Format: Patent
• Language: English
• Published: 06.04.1999
• Edition: 6
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS

A camera is used with a photo film cassette of a predetermined type. The photo film cassette includes a spool about which photo film is wound. A cassette shell contains the spool in a rotatable manner. A data disk with a bar code is disposed on the spool in a manner readable externally outside the cassette shell for signaling photo film information. In the camera, a cassette containing chamber contains the cassette. A bottom lid closes the cassette containing chamber in an openable manner. A spool drive shaft rotates the spool of the cassette in the cassette containing chamber, the spool drive shaft being connected to the spool set at a first rotational angle when the spool drive shaft has the first rotational angle. An bar code reader reads the photo film information from the data disk rotated in the cassette containing camber. A type determiner section in CPU detects whether the photo film cassette of the predetermined type is loaded in the cassette containing chamber according to the photo film information from the bar code reader. CPU controls operation of the spool drive shaft, CPU rotating the spool drive shaft when the bottom lid is closed, CPU stopping the spool drive shaft to set the spool at a second rotational angle when the type determiner section detects lack of the cassette or existence of a cassette different from the predetermined type.