摘要:
An automatic focus adjustment device and method for a high-speed continuous photography camera are disclosed. The device and method make possible lens driving based on the focus detection results of a previous exposure cycle, even if the current focus detection calculations between frames have not been completed.
摘要:
A camera having a sight line detecting device is provided with an illumination unit for detecting the corneal reflected image of the eye of the photographer, and an illumination unit equipped with plural light sources positioned around an eyepiece lens, for detecting the position of the center of the pupil. The latter illumination unit, for detecting the position of the center of the pupil, is so controlled that a light source positioned below or at the side of the eye of the photographer is turned on regardless of the change in the camera attitude, whereby the illuminating light is not intercepted by the eyelid or eyelashes and the position of the pupil center can be precisely detected.
摘要:
A camera operation directing device includes an eye-gaze direction detection device for detecting a direction of an eye-gaze of an observer who is looking into a finder, in a predetermined eye-gaze operation area within the finder and for outputting an eye-gaze operation signal, and a photographic operation direction device for directing the photographic operation, including at least starting of a photo-taking operation, in accordance with the eye-gaze operation signal from the eye-gaze direction detection device.
摘要:
A camera includes a photo-taking lens, an automatic focus adjusting device for effecting the automatic focus adjustment of the photo-taking lens, an eye-gaze detecting device for detecting the photographer's eye-gaze position in a finder field corresponding to a photographing picture plane, and producing an eye-gaze detection signal corresponding to the eye-gaze position, a focus adjustment signal producing device for outputting a plurality of focus adjustment signals corresponding to a plurality of detection areas in the photographing picture plane, and a control signal producing device for producing a control signal for controlling the automatic focus adjusting means, on the basis of the eye-gaze detection signal and the focus adjustment signals. The control signal producing device produces the control signal on the basis of the plurality of focus adjustment signals corresponding to the plurality of detection areas when the eye-gaze position indicated by the eye-gaze detection signal is at a position between the plurality of detection areas.
摘要:
An automatic focus device for a camera which comprises a phototaking lens for forming the image of an object on a predetermined plane, a focus detection device for detecting the amount of defocus of the image plane of the phototaking lens with respect to the predetermined plane, a lens position detecting device for detecting the position of the phototaking lens, an in-focus lens position determining device for determining an in-focus lens position to which the phototaking lens is to be focused, from said defocus amount and said lens position, a lens movement pattern memory device for storing, as lens movement pattern information, the relationship between the lens position and time for focusing the phototaking lens to a particular moving object and a lens drive controller device for controlling the lens position in such a manner that the movement of the phototaking lens as a function of time coincides with the lens movement pattern information, and compensating the position-time relationship of the phototaking lens and the lens movement pattern information, based on the in-focus lens position.
摘要:
An auto-focus (AF) camera enables AF operation with high speed and enhanced accuracy. The AF operation encompasses step-scanning the focus lens of the camera from the closest focal position to infinity, or vice versa. In one embodiment, the steps in the step-scanning are made smaller around a position judged to be close to the focus position, and the steps are made larger at other positions.
摘要:
A CPU calculates integrating values of image-capturing signals in band 1 obtained by removing a frequency component equal to or lower than a first cutoff frequency from an image-capturing signal output from an image-capturing element through a band pass filter and integrating values of an image-capturing signal in band 2 obtained by removing a frequency component equal to or lower than a second cutoff frequency through a band pass filter, each in correspondence to one of a plurality of lens positions. The CPU then calculates focal point evaluation values by using these integrating values in correspondence to the individual bands. In addition, when the largest evaluation value in band 1 is judged to correspond to the closeup end position of the lens, the CPU makes a decision as to whether or not a focus match is achieved at the closeup end. The CPU uses an adjacent difference in band 1 at the closeup end, an adjacent difference ratio and an adjacent difference in band 1 at points next to the closeup end in the decision-making.
摘要:
An auto-focus (AF) camera enables AF operation with high speed and enhanced accuracy. The AF operation encompasses step-scanning the focus lens of the camera from the closest focal position to infinity, or vice versa. In one embodiment, the steps in the step-scanning are made smaller around a position judged to be close to the focus position, and the steps are made larger at other positions.
摘要:
A capture device which captures developer, after used for developing image, from a wet electronic developing device includes a drying belt, a nip roller, a regeneration roller, and a cleaning roller. An absorption layer absorbing solvent is arranged over the outer circumference of the drying belt. The surface of the absorption layer contacts the surface of an organic photo-conductor belt in a predetermined adjacent area. The absorption layer rotates in an opposite direction of the rotational direction of the organic photo-conductor belt, thereby to absorb the solvent and some toner which are included in the developer. An electrostatic latent image is formed on the organic photo-conductor belt and developed using the developer. The nip roller rotates and supports an adjacent section of the drying belt which is adjacent to the organic photo-conductor belt, from the inside of the drying belt. The regeneration roller rotates and supports the drying belt, and includes a first heat source so as to dry the absorption layer with the heat generated by the first heat source. The cleaning roller includes a second heat source, makes the toner absorbed by the absorption layer melt with the heat generated by the second heat source, and removes the toner therefrom so as to dry the absorption layer.
摘要:
A method of manufacturing a liquid crystal display element having characteristics of voltage-transparency, and the like, which differ locally. The method of manufacturing the liquid crystal display device includes a step of injecting a mixture of photohardening resin and liquid crystal between two substrates, and a step of exposing the injected mixture to light which causes photohardening of the mixture. The step of exposing the mixture to light includes exposing at least two pattern regions which become different from each other under photohardening conditions.