Title:
MONITOR IMAGE PHOTOGRAPHING DEVICE
Document Type and Number:
Japanese Patent JP3447612
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely recognize whether or not a film is loaded, with a simple constitution.
SOLUTION: Two predetermined points on a resistance film(resistance value R) arranged on a film cassette 2 are brought into contact with two contacts 11 and 12 arranged inside the camera 3 main body. Besides, the contact 11 is connected to a fixed resistance 13(resistance value R0) and a power source 14 in series, and the contact 12 is connected to a GND. An A/D converter 15 for converting the voltage value of the contact 11 to a digital signal, a CPU 16 for reading the voltage value of the contact 11 converted to the digital signal by the A/D converter 15, and a camera driving part 17 which is controlled by the CPU 16 based on the voltage value of the contact 11 shown as the digital signal are installed in the camera 3 main body, and an LED for informing that the film cassette 2 is not loaded is arranged on the outer surface of the camera 3 main body.
Inventors:
Masaharu Hideyuki
Application Number:
JP14364899A
Publication Date:
September 16, 2003
Filing Date:
May 24, 1999
Export Citation:
Assignee:
Olympus Optical Co., Ltd.
International Classes:
G03B17/18; G03B17/00; G03B17/26; G03B17/30; G03C3/00; (IPC1-7): G03B17/00; G03B17/18
Domestic Patent References:
| JP534794A | ||||
| JP9197512A | ||||
| JP4314040A | ||||
| JP4213439A | ||||
| JP2278244A | ||||
| JP58120239A | ||||
| JP58120236A | ||||
| JP458233A | ||||
| JP11143024A | ||||
| JP1184593A | ||||
| JP5158125A | ||||
| JP61260232A | ||||
| JP6060630A | ||||
| JP6368637U |
Attorney, Agent or Firm:
Susumu Ito