1992-09-30
1993-10-26
Perkey, W. B.
354418, 354421, 354137, G03B 1505
Patent
active
052570630
ABSTRACT:
The flashing controller according to the present invention comprises an optimal light value computer for computing an optimal quantity of light, a full flashing light value memory for storing an actual quantity of light for full flashing, a difference computer for computing a difference between a quantity of light for full flashing and an optimal quantity of light, and a difference output/flashing time memory for storing the relationships between the difference output and the flashing time of a flashing apparatus. For controlling the flashing time of a strobe, a difference between an actual quantity of light for full flashing and an optimal quantity of light is used to specify a flashing time. Then, a flashing time control controls flashing of a strobe circuit. Using the controller, influence of a reflector whose specifications tend to be determined at a late stage can be programmed independently during manufacturing. This helps reduce a production risk and improve precision in flashing control.
REFERENCES:
patent: 5134431 (1992-07-01), Ishimura et al.
Ishimaru Toshiaki
Kawakami Satoshi
Olympus Optical Co,. Ltd.
Perkey W. B.
Weinstein Louis
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