Title:
【発明の名称】カメラ
Document Type and Number:
Japanese Patent JP3061752
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To check the defect or the flaw of an information recording member or the abnormality of an information input means by providing a film information discrimination means with a non-existent information discrimination part discriminating whether film information is non-existent information or not. SOLUTION: An information display member DD displays information such as the type, the sensitivity and the exposure number of the film FM by using an encoded black-and-white pattern, and the information input means S20 and S21 constituted of a photoelectric conversion device such as a photoreflector, etc., read the black-and-white pattern while rotating the display member DD. The film information discrimination means for discriminating the inputted film information is provided with the non-existent information discrimination part discriminating whether the film information is non-existent or not. It is desirable to provide a mode for inhibiting photographing such as performing the inhibition control of the loading operation of the film FM in the case of discriminating that the film information is non-existent in such constitution, and further it is desirable to provide a display means for performing warning display in such a case.
Inventors:
Toshifumi Ohsawa
Application Number:
JP988096A
Publication Date:
July 10, 2000
Filing Date:
January 24, 1996
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B7/24; G03B1/00; G03B17/00; G03B17/02; G03B17/18; (IPC1-7): G03B7/24; G03B17/00; G03B17/02; G03B17/18
Domestic Patent References:
| JP62145231A | ||||
| JP62150340A | ||||
| JP62147438A | ||||
| JP8339026A |
Attorney, Agent or Firm:
Masayuki Kishida (2 outside)