DE2214549

• Main Authors: KONISHI, YUICHIRO, MACHIDA, TOKIO, TAGUCHI, TATSUYA, TOKIO
• Format: Patent
• Language: English
• Published: 18.07.1974
• Edition: 2
• 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

In a shutter control, a photoresistive element whose resistance varies non-linearly with changes in incident light forms part of a voltage divider with a variable resistor. The voltage divider contacts the output of a meter. The resistor, in turn, forms part of an RC circuit that controls the timing...