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    • 2. 发明授权
    • Photographic camera
    • 摄影相机
    • US4933692A
    • 1990-06-12
    • US351188
    • 1989-05-12
    • Yoshinobu KudoManabu InoueKeisuke MaedaYujiro MimaHiroshi Ootsuka
    • Yoshinobu KudoManabu InoueKeisuke MaedaYujiro MimaHiroshi Ootsuka
    • G03B17/12
    • G03B17/12
    • A photographic camera which assures proper use of a front converter and prevents out-of-focus photographing when the front converter is used and wherein a switch for detecting whether a tele-converter is in its operative position or inoperative position is not exposed outside the camera. The switch is provided in a converter body removably mounted on a camera body and is connected in series to another switch also provided in the camera body for operation upon attachment of the converter body to the camera. When the converter is mounted in its operative position on the camera body, it is detected by a control circuit in the camera body in accordance with a signal received from the switches, and the control circuit controls various functions of the camera in a different manner from that when the converter is not in its operative position.
    • 一种照相机,其确保正面使用前转换器并防止使用前转换器时的失焦拍摄,并且其中用于检测远程转换器是否处于其操作位置或不工作位置的开关不暴露在照相机外部 。 开关设置在可拆卸地安装在相机主体上的转换器主体中,并且串联连接到另外还设置在相机主体中的开关,用于在将转换器主体附接到相机时进行操作。 当转换器安装在相机主体上的操作位置时,根据从开关接收到的信号由相机机身中的控制电路检测到,并且控制电路以不同的方式控制相机的各种功能 当转换器不在其操作位置时。