摘要:
A compact viewfinder device suitable for use in a camera. The viewfinder device includes an image-forming optical system to form a subject image on an image-forming plane, and a fiber optical plate having a plane of incidence and an exit plane and which transmits the optical image which has entered the plane of incidence to the exit plane. The plane of incidence of the fiber optical plate is positioned on the image-forming plane of the image-forming optical system, and the fiber optical plate transmits the optical image which has entered the plane of incidence so that it is rotated around an exit axis of the exit plane. The fiber optical plate may also enlarge the optical image entering the plane of incidence so that an enlarged image is transmitted to the exit plane. Further, the exit plane of the fiber optical plate may be tilted with respect to the plane of incidence and perpendicular to the exit axis to allow ease of viewing the viewfinder image.
摘要:
A camera capable of automatic film rewinding into the magazine, comprises an information recording device for recording at least information on use in an information recording portion formed at a predetermined position of the magazine loaded in the magazine chamber of the camera, an information detecting device capable of detecting recorded information of the magazine when it is loaded, a prohibition device for prohibiting the photographing operation in response to a detection signal corresponding to information, indicating that all the film is already used, detected by the information detecting device and control means for controlling the information recording device, information detecting device and prohibition device in such a manner that the detection by the information detecting device is conducted prior to the recording of information of use by the information recording means, and that the photographing operation is prohibited in response to the detection of information indicating that all the film is already used.
摘要:
A camera is equipped with a photographic lens and a drive for moving the lens relative to the camera body. If an external or other force prevents the lens from moving to a prescribed position within a set time interval, for example, the drive changes the drive speed of the lens from a first-drive speed to a slower, second drive speed. When the external or other force is removed and normal movement of the lens again is possible, the drive changes the drive speed of the lens from the slower, second drive speed to the first drive speed, without requiring complicated restorative action on the part of the operator. Thus, damage to the drive and other components of the camera is prevented, without complicating operation of the camera.
摘要:
A camera having improvements in (a) the placement of anti-vibration sensors, (b) the connection between components of an anti-vibration mechanism, (c) the connection between the anti-vibration mechanism and external testing devices and (d) the connection of the camera to a tripod. The camera body has first and second ends and a photographic lens which is positioned on the camera body between the first end and the second end. A battery compartment, first and second anti-vibrations sensors and a main capacitor are all positioned in the first end of the camera body. The first anti-vibration sensor is positioned between the battery compartment and the photographic lens. The first and second anti-vibration sensors reside on the same sensor card and the sensor card has a connector mounted thereon. An anti-vibration CPU resides on a separate, flexible printed circuit card and is connected to the anti-vibration sensors by inserting a potion of the flexible printed circuit card into the connector on the sensor card. Communication terminals are provided inside the camera for allowing external testing equipment to communicate with the anti-vibration sensors and the anti-vibration CPU. Moreover, the shutter release button is on the top of the camera and a tripod is fixed to the bosom of the camera so that depression forces from the pressing of the release switch are transferred to the tripod and do not cause the camera to vibrate.
摘要:
A camera with a data imprinting device has a plurality of in-line LEDs producing light focused by an optical system upon a photographic film at a first and a second position, corresponding to a full size format and a panorama size format, respectively. The focused light imprints data images upon the film at the first position are larger than data images imprinted at the second position. The optical system has first and second prisms, with integrated lenses, for reflecting and focusing the light upon the film at the first and second positions, respectively. A shutter plate is selectively positioned over apertures through which the light is focused, thus blocking the light and allowing only a selected imprint to be made upon the film. A vertical pattern of the data image is created by a controller selectively illuminating the in-line LEDs while a horizontal pattern is produced by the controller illuminating the LEDs in coordination with the movement of the film past the apertures. The controller actuates a motor for advancing the film and has a sensor for detecting film travel. A first embodiment has the first prism positioned further from the film than the second prism, which is positioned further from the LEDs than the first prism, such that reflected light from the first prism has a path intersecting that of incident light of the second prism. A second embodiment has the prisms offset from each other in the plane of the film such that light paths do not intersect. The first embodiment has a narrower width than the second embodiment while the second embodiment has a shallower depth than the first embodiment.
摘要:
A display device of a camera is automatically switched from a date display mode to a time display mode for a predetermined amount of time in a case when the photographer inputs exposure correction information, such as geographic area information, which involves a correction to account for time change with no change of date. The photographer may thus readily confirm that the time change correction has been made. The order of arrangement of the month, day, and year in the date display mode may be selected automatically according to the geographic area to conform with prevailing custom. The device may incorporate a correction feature to account for daylight saving time and may display a correction code corresponding to the graphic area and a mark indicating that daylight saving time has been selected.
摘要:
An electric zoom camera comprises a photographing lens system having a zoom lens system, a detecting device for detecting a focal length of the photographing lens system and generating a corresponding output, a driving device for driving the photographing lens system for zooming, a commanding device for generating a command for executing zooming to the driving device, and control device for controlling the driving device in accordance with the output from the detecting device and the command, to change a focal length of the photographing lens stepwise between focal lengths of a plurality of predetermined focal lengths arranged substantially in accordance with a geometric progression.
摘要:
There is disclosed an exposure control apparatus for a camera, enabling appropriate exposure control for varied photographing situations. The apparatus determines the optimum exposure value, referring to various conditions including the season and time of photographs, photographing location, sunrise/sunset times and so on.
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.