Automatic camera shutter专利检索-固态电池蓄电池电化学发生器电池与电池专利检索查询-专利查询网

Automatic camera shutter

阅读：375发布：2023-09-04

专利汇可以提供Automatic camera shutter专利检索，专利查询，专利分析的服务。并且A light-controlled automatic camera shutter comprises a timing circuit including a series connected photoconductor and capacitor, a solid-state switch controlled by the capacitor charge and a network for measuring the photoconductor resistance including a meter for preindicating the exposure time. Normally open first and third and closed second switches are concurrently actuatable, the resistance measuring network being connected to a battery through the first switch, a shutter closure release solenoid being connected to the battery through the solid-state switch output and the first and second switches in series, and the third switch connecting the meter in the resistance measuring network. The first switch or a fourth switch is actuated by the initiation of the shutter opening to energize the solenoid solidstate switch network.，下面是Automatic camera shutter专利的具体信息内容。

权利要求

1. A camera shutter control system comprising an electrical network including a resistance-measuring section having a first input to which a resistance to be measured is connected and a first output providing a current responsive to the resistance connected to said first input and a switch section having a second switch control input and a second switch control output providing a current responsive to the signal to said second input, a timing network including in series connection a timing capacitor connected across said first input and a light exposable photoconductor connected across said second input, a current responsive indicating device, a shutter closure release electromagnet, first and second resistors, a battery having first and second terminals, first, third and fifth normally open switches and second and fourth normally closed switches, said indicating device being connected through said third switch across said network first output, said network being connected through said first switch across said battery for energizing said network, said electromagnet and said first and second switches and said battery being connected in series across said network second output, said indicating device and said first and second resistors being connected in series to said battery first terminal, said first resistor being connected across said battery through said fifth switch, said fourth switch being connected across said capacitor and said first, second and third switch being simultaneously operable.

2. The camera shutter control system of claim 1 including a normally open sixth switch connected between the junction of said solenoid and second switch and the junction of said battery and first switch.

3. The camera shutter control mechanism of claim 1 wherein said second switch is selectively independently actuatable.

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Automatic camera shutter

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