摘要:
A camera is capable of displacing a phototaking optical system in the direction of the optical axis by a drive source such as motor and setting the optical system to a plurality of positions. The camera includes a photo-taking optical system, photographing position setting means producing a command signal, a drive source, position detecting means outputting a position signal corresponding to the position of the photo-taking optical system, discriminating means for discriminating the direction of movement of the phototaking optical system, and control means for stopping the drive source and setting the photo-taking optical system at a position corresponding to the command signal as soon as the position indicated by the position signal coincides with the position indicated by the command signal when the discriminating means is discriminating a predetermined first direction of movement, stopping the drive source at a position beyond the position indicated by the command signal and then driving the drive source so that the photo-taking optical system is moved in the first direction when the disciminating means is discriminating a second direction of movement differing from the first direction of movement, and stopping the drive source and setting the photo-taking optical system at the position corresponding to the command signal as soon as the position indicated by the position signal coincides with the position indicated by the command signal.
摘要:
A camera containing a lens barrier therein is comprised of a helicoid rotatable about the optic axis, a rectilinear barrel threadably engaged with the inner side of the helicoid and having a holding portion for a lens barrier holding a photo-taking lens and protecting the photo-taking lens, a guide plate extending in the direction of the optic axis and engaged with the rectilinear barrel to rectilinearly guide the same through a cut-away groove, and a lens barrier held in the lens barrier holding portion and opened and closed in front of the photo-taking lens. The guide plate and the lens barriers are designed so as to be capable of overlapping each other in the direction of the optic axis, and the guide plate is designed so as not to hamper the opening-closing of the lens barriers even when they are in the overlapping position.
摘要:
An interchangeable lens camera including a lens barrel and a camera body. The lens barrel is attached to the camera body via a body side mount and a lens side mount. The lens barrel mounting mechanism, including the body side mount and the lens side mount, is capable of moving along the optical axis of the camera so as to move from a position where the lens barrel is completely collapsed within the camera body to a position where the lens barrel is fully extended for zoom photography. The shortest state of the camera is when the lens barrel is detached from the camera. The lens barrel includes a set tube that is movable along the optical axis, lens units for focusing light onto a film in the camera body, and lens protection elements that open or close depending upon the state of the lens barrel, i.e., detached or attached, collapsed or extended. The camera body includes a control circuit that controls the movement of the lens barrel based upon the state of several switches, some of which are located in the lens barrel.
摘要:
A camera for use with interchangeable lens barrels that can be attached to and detached from the camera body has a drive mechanism that provides the generating source for the drive power of drive elements inside each lens barrel built into the camera body. The connecting structure that provides a connection between the camera body and lens barrels varies according to the type of lens barrel, for example, whether the lens barrel contains a fixed focal length lens or a variable focal length lens. So, the functions realized by the drive of the drive elements from the drive mechanism vary according to the type of lens barrel.
摘要:
A shake-proof camera comprises a shake-correcting lens portion for correcting a shake by changing an optical axis of a photographic optical system and a moving lens portion disposed in the vicinity of the shake-correcting lens portion and arranged as movable in a direction of the optical axis, and further is provided with a shake-correcting lens lock apparatus for locking the shake-correcting lens portion by bringing the moving lens portion into contact with the shake-correcting lens portion.
摘要:
A camera with a vibration correction function provided with a continuous shot mode for carrying out continuous photographing, has a vibration detecting device for detecting vibration of the camer, a vibration correcting device for correcting the vibration of the camera at the time of photographing based on a signal from the vibration detecting device, a film feeding device for feeding a photographic film loaded in the camera, a film end detecting device for detecting an end of the photographic film, and a control device for stopping the operation of the vibration detecting device and making the film feeding device start rewinding the photographic film when receiving a film end detection signal from the film end detecting device during photographing under the continuous shot mode.
摘要:
A camera has an electrically zoomable lens with two modes. In the first mode, the zooming is continued during the continuation of a manual operation. In the second mode, the zooming is conducted to a focal length corresponding to stored information, which corresponds to a focal length arbitrarily selected in the zooming of the first mode. The stored information is retained even when the second mode is released, and the zooming to the focal length corresponding to the stored information is possble when the second mode is set again.
摘要:
A display apparatus in a camera for displaying photographic information using rotating elements. The display apparatus includes rotating pointers which rotate about display scales to display the photographic information. The display apparatus further includes a control unit which receives camera control information and in response to the control information, the control unit controls driving circuitry which causes the rotating display pointer to point to an index on the display scale representing the photographic information.
摘要:
A compact camera apparatus having an improved display device and circuit mounting board layout within the camera body in relationship to other components to achieve a more compact and efficient space camera utilization. In one embodiment of the camera, a display unit is located on the upper surface of the camera body, and has a portion thereof, such as its drive mechanism at least partially positioned in a space formed between a light projection unit and light receiving of the camera's rangefinder device. In another embodiment, the camera has a mounting board of the required size for holding constituent control circuit components of the camera located in the camera body with attention to the location of the board in relationship to the cartridge compartment and other camera components to provide for a more compact design. A rigid mounting board is used as the mounting board and is located and incorporated within the camera body at the upper, inside portion of the camera body, in contact with the upper end of a reverse loading type cartridge compartment, and extending over a photographic lens barrel and to the upper side of a spool compartment. At least one or more camera components is arranged in a vacant space formed between the mounting board, the photographic lens barrel and the spool compartment. Furthermore, with the rangefinder device and a photometer device both mounted on the mounting board, a portion of the viewfinder unit is located on the lower side of the mounting board.
摘要:
A camera having components of a viewing optical system and a display optical system fixed at positions which do not require change for photographic lenses having different angles of view. The viewing optical system allows a photographer to view a subject through a photographic lens. The viewing optical system includes an eye piece and an objective lens positioned between the eye piece and the photographic lens. The display optical system includes a framework which displays information. The display optical system allows the photographer to view the information displayed on the framework through the eyepiece. The respective positions of the eye piece, the objective lens and the framework are fixed and do not require change to allow the camera to be useable with different photographic lenses having different, respectively corresponding angles of view.