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Exposure value display device

阅读:801发布:2023-10-20

专利汇可以提供Exposure value display device专利检索,专利查询,专利分析的服务。并且PURPOSE: To confirm the set specified aperture value, in the case of dimmer type flash photographing, by forming and displaying plural specified aperture value signals in cooperation with the specified aperture signal source provided outside of camera main body.
CONSTITUTION: When a flash device 1 is attached to a shoe 6 of a camra 3, an end part 7-1 of a lever 7 is pushed and displaced by a protruding part 2 forming a specified aperture signal source, and S
2 -1 of a selector switch S
2 is changed over to S
2 -2 side. As a result, a variable resistor R
1 of which value is set by a sliding brush 7-2 fitted to a lever 7 is connected instead of a photq detector P. Therefore, when the specified aperture of the flash device 1 mounted is, for instance, F4 at ASA100, the value of R
1 corresponds thereto, ant a corresponding current flows in a meter M, so that the pointer automatically indicates F4. Accordingly, depencing on the characteristics of the flash device mounted and the sensitivity of the film used, the specified aperture value to be set is displayed in a finder 4 through the meter M, and is automatically set to the specified aperture value.
COPYRIGHT: (C)1980,JPO&Japio,下面是Exposure value display device专利的具体信息内容。

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