摘要:
In an image sensing apparatus having an image sensor which converts an optical image of an object into an electrical signal, a view finder for monitoring the optical image equivalent to the image incident on the image sensor, an optical member arranged in the path of light incident on the image sensor to selectively guide the light to the image sensor and also to the view finder, an exposure member which is at least partially disposed in between the object and the optical member and is arranged to control an exposure and a light receiving element which is arranged separately from the image sensor, a control circuit is arranged to cause the light receiving element to form a first photometric information when the optical member guides the optical image to the view finder; to control the exposure member on the basis of the first photometric information while the optical image is led to the image sensor by the optical member; to cause, after that, the image sensor to form a second photometric information; and again to control the exposure member on the basis of the second photometric information.
摘要:
A display device for displaying the time of a bulb photographing operation is arranged so that a counter for counting the clock pulses starts to operate when the bulb photographing mode is set in the camera and the release operation of the camera is started. A decoder incorporated in the camera decodes the content of the counter and a display instrument displays the output of the decoder in such a manner that the photographer can visually recognize the bulb photographing operation time. Several embodiments of the circuitry for controlling the nature of the display, including timing charts therefor, are set forth.
摘要:
A release control device for controlling initiation of a release of various portions of a camera by means of an electromagnet. When a shutter release button is maintained depressed to make a continuous series of frame exposures as by the help of a motor drive unit, the device defers initiation of each release operation pending completion of the returning movement of a resetting mechanism to its idle position.
摘要:
In the disclosed shutter, shutter blades are reciprocatable between exposure start positions and end positions. Reciprocative rotating electromagnetic drive sources with stators and rotors reciprocate the shutter blades. Magnetic members on the stator facing the rotors hold the latter at positions corresponding to the blades' start positions and are movable to vary the gaps formed between the rotors and themselves.
摘要:
In the camera disclosed, an electromagnetic actuator is responsive to a timing pulse of short duration from an exposure control circuit for controlling the closing movement of a shutter. A permanent magnet may accidently be left latched and hold the rear curtain in cocked position after the timing pulse because of possible damage to an electromagnetic control circuit as a result of a battery short circuit. This may cause the film to fog during subsequent winding or rewinding. To prevent this, an indicator produces a visible indication either in the field of view of the camera finder or, in the case of remote shutter operation, outside the camera housing, that the rear curtain must be manually unlatched.
摘要:
A roll film camera of the type in which the exposed film must be rewound onto a supply reel within a magazine before the back cover of the camera is opened to remove the magazine from its chamber within the camera body. As a rewinding crank is operated by hand, when the film nears the terminal end as detected by a probe extending into the transport path of the film, motion of the handcrank begins to be transmitted to an operating member for controlling a locking and unlocking operation of the back cover. It is thereby insured that the film is protected from fogging when the magazine is removed. Even with a camera having a motor drive unit, it is possible to leave the film unrewound protruding from the magazine by a limited terminal length which provides for easy handling of the film in the later processing operation.
摘要:
An optical disk device includes a light source, an objective lens, a box body and a supporting member. The light source is provided so as not to move to the apparatus body. The box body holds the objective lens. The box body is supported movably to the apparatus body in the tracking, focusing and seek directions by the supporting member. A light beam emitted from the light source is guided to the objective lens by the mirror.
摘要:
An exposure device with a shutter operating in such a manner that the size of aperture opening defined by the shutter blades first increases from zero and then starts to decrease in predetermined timing, comprises a mechanism for opening the shutter with the help of an electric motor, while charging a spring as the drive source for closing movement of the shutter, an electromagnet arranged upon current supply to change the driving of the shutter from the opening mechanism to the spring, and a control circuit for controlling the operation of the shutter in such a manner that when taking one picture, the shutter blades reciprocate two times continuously to recycle substantially twice the exposure operation, as the operation of each of the motor and the electromagnet is recycled twice.
摘要:
Disclosed is a camera body provided with a mount member having a mount surface for mounting a lens, and holding means for holding the mount member so that the angle of orientation of the mount surface with respect to the camera body is adjustable from the outside of the camera body, thereby it being made possible to adjust the angle of orientation of the mount surface from the outside.
摘要:
In the disclosed camera a sound-making element is provided to produce warning signals or confirming signals for operation of a self-timer. A binary counter which digitally controls the camera controls the sound-making element. Warning signals and confirming signals for operation of a self-timer are distinguished from each other by a difference in oscillation pulses.