Photographic camera having automatic exposure control
专利汇可以提供Photographic camera having automatic exposure control专利检索，专利查询，专利分析的服务。并且Photographic camera having automatic exposure control of the type in which the shutter speed is selected by the operator, the operation of the shutter release being prevented when the scene brightness is excessive or insufficient for proper exposure at the selected shutter speed. The electric circuit of the camera consists of a photoelectric element, a galvanometer and a plurality of resistors each having a resistance corresponding to a shutter speed and selectively connected to the circuit in coupled relationship to the setting of the shutter speed to compensate for the indication of the galvanometer for proper exposure in accordance with the set shutter speed. The galvanometer is short-circuited or deenergized upon the setting of the shutter to the ''''bull'''' position or B-speed at which the shutter blades are kept opened upon actuation of the shutter release until the shutter is released thereby permitting the galvanometer to indicate the condition as if the intensity of light were insufficient for the proper exposure so that false exposure is positively prevented.，下面是Photographic camera having automatic exposure control专利的具体信息内容。
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