摘要:
Attaching window glass to a window used in photometry without degrading the external appearance of a camera, with the aim of simplifying the photometric optical system. The device has a photometric unit which conducts photometry on the subject region and which is provided inside the housing of the camera, an aperture stop is formed integrally with the housing at a position in front of the photometry unit. The aperture stop restricts the amount of incidental light on the photometry unit. A window glass is attached, from the inside of the housing, to cover the aperture region of the aperture stop. Further, the aperture stop is provided with a tapered surface which is formed so that the aperture region expands from the outside of the housing to the inside.
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:
Variable focus camera includes primary and secondary lens systems, in which only the primary lens system is used for wide angle shots while the combination of the primary with the secondary lens system is used for telephoto shots.The variable focus camera can exactly and positively control the focus change region, the automatic focusing region and other regions.
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 camera including a flashlight device for emitting a flashlight, a shutter, such that the camera has a flash synchro photographing mode in which the flashlight device emits the flashlight in synchronism with the shutter, a vibration detector for detecting a vibration quantity of the camera, a vibration correcting device for correcting an image blur on the basis of a vibration signal output from the vibration detector. The camera also includes a control device for controlling, while performing flash photographing by use of the flashlight device and driving the vibration correcting device, the shutter so that a maximum shutter time in the flash synchro photographing mode is shorter than or equal to a maximum shutter time in a non-emission of the flashlight. As a result, the flashlight device does not emit the flashlight.
摘要:
A camera, such as a video camera or other electrically recordable camera, has scale imprintable capabilities and a method for imprinting a scale onto memory storage media. The camera and method imprints, optically or electrically, a standard scale on memory storage media for the purpose of estimating the size of a subject image. A photographic magnification calculation circuit calculates the photographic magnification based on a subject distance, and a reference scale setting circuit sets a reference scale for the purpose of estimating the size of the subject image on the memory storage media regardless of the magnification during picture taking or print size. An imprinting circuit imprints, optically or electrically, the reference scale onto the memory storage media in accordance with the reference scale setting circuit, and only when needed or wanted. The reference scale can be imprinted in a vertical or horizontal direction in accordance with a mode selection switch. In addition, date, time and other information can also be imprinted onto the memory storage media. Picture taking will not be performed when it is not possible to accurately superimpose the reference scale and warning displays are generated.
摘要:
An analogue audio signal input to a transmission unit 1 is band limited into a frequency band lower than that of a main signal pass with a low-pass filter 21 and then converted into a digital value with a sampling clock lower than the main signal pass by an analogue/digital converter 22. All bits of the converted digital signal are inverted by an inverter 23. The digital signal input to a reception unit 3 via a transmission channel 100 is inverted by inverter 42 and is digital/analogue converted by digital/analogue converter 43 with the sampling clock lower than the main signal pass. The resultant signal is band limited into the low frequency band through a low-pass filter 44 and then output to a level comparator 45. A low-pass filter 46 band limits the signal for the main signal pass into the low frequency bang. The level comparator 45 compares the output level of the low-pass filter 44 with that of the low-pass filter 46.
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 camera display device includes a display unit which is selectively illuminated during camera operation. The display unit displays information to the photographer such as photometry and rangefinding information. A mode selector switch selects a camera operating mode from a plurality of operating modes and a camera instruction unit outputs an illumination instruction to an illumination light to thereby illuminate the display unit. A timer determines a time period for illumination of the display unit while a control unit continues the illumination of the display unit during a predetermined continuation time period in response to the illumination instruction from the camera instruction unit. The control unit also continues the illumination of the display unit until an end of the camera operating mode selected by the mode selector switch. The operating mode selected by the mode selector switch includes a long exposure mode which continues an exposure longer than the predetermined time of the illumination continuation unit, a bulb exposure mode which continues an exposure for a predetermined period of time beginning from the receipt of a signal from a camera release member, and a time exposure mode which continues an exposure for a predetermined period of time beginning from the receipt of a signal from the camera release member.