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:
A vibration preventing camera includes a vibration amount detecting unit for detecting the amount of vibration, a vibration correcting unit for correcting vibration, a light measuring unit for measuring the light value at a subject, and a control unit for controlling the vibration correcting unit in consonance with a detection signal that is obtained by the light measuring unit and the vibration detecting unit, and for activating the vibration detecting unit after the length of exposure is determined by the light value at the subject that is obtained by the light measuring unit. More preferably, a vibration preventing camera further includes a self-timer unit, and when the self-timer unit is set for an exposure, the vibration detecting unit is activated after the timing count down for the self-timer unit begins.
摘要:
A camera capable of operating in a red-eye prevention mode. The camera has an electronic flash device which is activated by a drive circuit in synchronization with the exposure. The electronic flash device also serve as a pre-light-emission device capable of performing pre-light-emission for the purpose of preventing red-eye effect. When it is judged from the photographing condition that red-eye effect may occur, a controller activates the electronic flash device to effect a pre-light-emission for reducing the size of pupils of eyes of a person to be photographed, before the main flashing which is executed in synchronization with the exposure.
摘要:
A vibration compensation mode selection apparatus and associated visual display for a camera which allows a photographer to enable or disable a vibration compensation unit while receiving visual feedback regarding the operation state of the vibration compensation unit and information regarding the vibrations detected within the camera. A vibration detection unit is provided to output a signal indicating the amount and direction of vibrations experienced by the camera. A vibration compensation unit drives the vibration compensation lens perpendicular to the optical axis of a photographic lens system to correct for the vibrations detected by the vibration detection unit. A button is provided on the front face of the camera to enable the photographer to disable the vibration compensation unit by pressing the button. A display unit is provided to indicate to the photographer whether the vibration compensation system has been enabled or disabled. For example, the display unit can be configured to flash at a high frequency when the vibration compensation unit has been disabled. Further, the display unit can be configured to provide information regarding the severity of the vibrations detected within the camera. Specifically, the display unit can be configured to steadily illuminate to indicate vibrations which can be corrected by the vibration compensation system, and at a slow rate to indicate vibrations which are outside the correctable range of the vibration compensation unit. The display unit can either be provided within the viewfinder or on the body of the camera in a location easily visible by the photographer.
摘要:
An automatic-focus camera has a focus lock system that stores focus adjusting information so that a photo-taking lens may be kept focused on an object during one or more exposures. The camera has a self timer, an automatic exposure system with different program modes, and has continuous as well as single-frame operating modes. The focus lock system, which has different focus lock modes, influences the manner in which various operations of the camera are performed.
摘要:
A vibration compensation device for use in an optical imaging system, such as a camera, having a vibration detection unit to detect vibrations in the camera and a vibration compensation unit to drive a vibration compensation optical lens perpendicular to an optical axis to correct for the vibrations detected by the vibration detection unit. A display unit, preferably a lamp, is provided to indicate the detection of vibrations by the vibration detection unit. Further, the vibration detection device is provided with a switch to allow the user to select whether the vibration compensation device is to be enabled or disabled. When the vibration detection device is enabled, upon the halfpress of a shutter release button, the vibration detection unit is initialized to determine the point at which the angular velocity of the vibration compensation optical lens equals 0. Thereafter, the vibration compensation unit drives the vibration compensation optical lens in response to the signals from the vibration detection unit. Conversely, when the vibration compensation device is disabled, a wait time, equal to the amount of time otherwise required to detect where the angular velocity equals 0, is waited so as to present the photographer with the same feel regardless of whether he takes a picture with the vibration compensation device enabled or disabled.
摘要:
A camera displacement mechanism control device can maintain the time required to effect removal of backlash within a set time. Zooming-down is started by the zoom-down switch being turned ON, and the lens barrel is driven as far as the wide-angle terminus if the zoom-down switch is not turned OFF during zooming-down. Alternatively, if the zoom down switch is turned OFF during zooming-down, the lens barrel is driven to the next halt position after the position where the zoom-down switch was turned OFF. In either case, the lens barrel is caused to overshoot the target halt position in the direction of scrolling-in for a time interval long enough to effect removal of backlash, and is subsequently driven in the direction of scrolling-out and halted at the described target halt position.
摘要:
An apparatus to detect the amount and direction of rotary motion for use in a vibration compensation system in an optical camera. An indicator disk is provided around the output shaft of a motor which actuates a compensation lens to compensate for vibrations to the camera. The periphery of the indicator disk is provided with a series of holes. A pair of photodetectors, are arranged on the periphery of the disk so as to detect the holes passing thereunder. The two photodetectors are separated by a distance equal to 3/4 of the distance between two holes. By comparing the pattern of signals emitted by the photodetectors the direction of rotation of the indicator disk can be determined. Further, the pulses in the output of either photodetector can be counted to determine the amount of movement. The actual direction and amount of movement as calculated is provided to a vibration compensation circuit as feedback for use in controlling the compensation lens.
摘要:
A camera with a vibration correcting function, having a phototaking preparation start device releasing a preparatory operation start signal for instructing the start of a phototaking preparatory operation by a first manual operation, a vibration state detecting device detecting a vibration state based on the preparatory operation start signal, a phototaking start device releasing a phototaking start signal instructing the start of a phototaking operation by a second manual operation, a vibration correcting optical system varying the phototaking optical axis according to the output of the vibration state detecting device, by driving at least a part of the phototaking optical system based on the phototaking start signal, and a control device allowing the entry only, during the function of the vibration state detecting device prior to the release of the phototaking start signal, of a cancellation signal indicating the cancellation of the first manual operation to the phototaking preparation start device or the phototaking start signal.
摘要:
A camera equipped with a vibration detection unit which detects vibrations in the camera, a vibration compensation unit which performs vibration compensation based on the vibration detection signals of the vibration detection unit, and a strobe emitting unit which emits photographic fill-in light. A control unit is provided that prohibits charging of the strobe battery while the vibration detection unit is operating. In addition, when it has been determined that photographic fill-in light is needed, and the vibration detection unit is operating, and when the strobe battery is uncharged, the operation of the vibration detection unit is stopped.