摘要:
A camera body is molded out of plastic, and a metal block is incorporated into the camera body as it is molded. The metal block has an aperture for determining the size of picture and a rail face for guiding the film. Mounted on the camera body, which is capable of being equipped with the film feeding mechanism, is a front plate unit presenting a mounting seat for the reflex mirror. The front plate is mounted directly on the metal block.
摘要:
A camera which permits mounting of an electric film rewinding device and which is provided with a compartment for inserting a film containing magazine. In the wall of the compartment, there is an opening which is provided with means for mounting and dismounting a manual film rewinding device in addition to electric rewinding device mounting means arranged at the same opening, so that the electric or manual film rewinding device can be interchangeably mounted on and detached from the camera.
摘要:
A camera having an electrically operated self-timer is provided with an operation mode display device arranged so that when the camera is switched to an exposure control mode by the self-timer, the display being ready for actuation of the timer is rendered recognizable from the object side or to the photographer, while when switched to any other exposure control mode, this display is shielded so as not to be recognizable from the object side or to the photographer.
摘要:
A camera having an electrically operated self-timer is provided with an operation mode display device arranged so that when the camera is switched to an exposure control mode by the self-timer, the display being ready for actuation of the timer is rendered recognizable from the object side or to the photographer, while when switched to any other exposure control mode, this display is shielded so as not to be recognizable from the object side or to the photographer.
摘要:
An automatic winding up device for a camera, in which a device for detecting the winding up completion signal supplied from the camera body as well as a delay device starting to operate by the detection of the winding up completion signal by the detecting device are disclosed. These devices operate in such a manner that the current supply to the winding up motor is maintained during the operation of the delay device. This acts to overload the motor for a certain time determined by the delay device after the completion of the winding up operation and overloads the winding up mechanism of the camera body. The current supply to the motor is interrupted after lapse of a time determined by the delay device so as to stop the motor. The winding up member is driven in the reversed direction by the reaction of the overload exercised on the winding up mechanism so that the load exercised on the camera is released at the termination of the winding up operation.
摘要:
A photographic camera having a magnetic actuating device associated with an electronic control device for initiating a release of one or more of the camera mechanisms from the cocked position thereof. In one embodiment of the invention, the magnetic actuating device comprises a single magnetic winding with a core material having a substantially rectangular hysteresis loop, and an armature of which the movement is controlled by the polarity of the magnetic winding and which is connected to spring-biased means for latching the mechanism in the cocked position. After the core is magnetized by applying a voltage to the magnetic winding for a relatively short period to hold the armature with the latching means in the cocked position against the force of the spring, the magnetic winding is energized by an output of the opposite polarity from the electronic control device causing the armature to move away from the core, whereby the release of the mechanism is initiated.
摘要:
A camera having an exposure control device or, more particularly, having a digital control circuit for controlling exposure. Sequence control over a photographing operation and control over a display operation are both accomplished by the same sequence control circuit, which is simplified and yet permits selection between self-timer photographing and ordinary photographing operations.
摘要:
When an electric shutter camera is set at a bulb photographing mode, which camera has an electro-magnetic release which places a photo-sensing circuit in an active state by a photo-sensing switch associated with a first stroke of a shutter button and provides shutter release by a camera-initiating switch associated with the second stroke of the shutter button, shutter release is performed by the camera-initiating switch and at the same time, the retention of a shutter follower screen is released in association with the photo-sensing switch to complete bulb photographing action.
摘要:
In a single lens reflex camera an electromagnetic release initiates operation of an automatic diaphragm control, a mirror driver, and a shutter driver, in that order. The electromagnetic release device includes a mechanical output terminal for controlling each mechanism and an electric input terminal. The electromagnetic release device is provided in a flat space above the bottom exterior wall of the camera.
摘要:
In a single lens reflux camera an electromagnetic release initiates operation of an automatic diaphragm control, a mirror driver, and a shutter driver, in that order. The electromagnetic release device includes a mechanical output terminal for controling each mechanism and an electric input terminal. The electromagnetic release device is provided in a flat space above the bottom exterior wall of the camera.