摘要:
A focus detection system for detecting a focus state of an object lens, includes an optical device for forming first and second light distributions corresponding to first and second images having light fluxes passing through the different parts of a pupila of the object lens. The positional relationship between the two light distributions varies in accordance with the focus state of the object lens. First and second sensors sense the first and second light distributions. A signal processor for processing output signals from the first and second sensors detect the focus state of the object lens in accordance with the positional relationships between the two light distributions. The signal processor processes the signals from the first and second sensors in accordance with a predetermined formula to obtain the positional relationship between the two images to determine a degree of coincidence of the two light distributions. The signal processing means provides an output signal in accordance with the degree of coincidence of the two light distributions.
摘要:
An image processing apparatus is capable of reading an original image with an arbitrary image magnification, by projecting an original image onto a linear image sensor through an optical system of a variable image magnification, and moving the original image with respect to the image sensor with a speed corresponding to the selected image magnification of the optical system.
摘要:
An apparatus for detecting the shake of an image of an object, having first and second photosensor arrays for detecting an image of an object in two different directions, a signal processor for processing output signals from the first and second photosensor arrays and for producing a focusing control signal of an objective lens, a memory circuit for storing an output signal from the first photosensor array, and a discrimination circuit for discriminating the shake of the object in accordance with the signal stored in the memory circuit and a signal from the first photosensor array produced subsequent to this signal.
摘要:
A focus detection system includes an object lens for focusing an image of an object, a refocusing optical system for refocusing a plurality of component image having parallax from the image of the image, a view field mask arranged between the object lens and the refocusing optical system and having a laterally extending aperture, and a sensing device having a photo-sensor array for sensing the component images. Focus detection error is prevented by determining a sense area of the photo-sensor array in accordance with a distortion created in an aperture image by the refocusing optical system.
摘要:
In an apparatus wherein on the basis of a light passing through an objective lens, a plurality of images whose relative positional relation varies in accordance with the focus state of the objective lens are formed and these images are detected by photoelectric conversion element arrays and a predetermined operation is effected by the use of a plurality of photoelectrically converted signals obtained correspondingly to the respective images to thereby detect the focus state of the objective lens, there are provided first adder means for comparing the photoelectrically converted signals of the respective images in a predetermined relation and adding the smaller signal and second adder means for comparing the photoelectrically connected signals of the respective images in a predetermined relation and adding the greater signal and focus detection is effected by utilization of the result of the addition of one of the first and second adder means in accordance with the object condition, whereby accurate focus detection is made possible for any object.
摘要:
In the camera disclosed, a display device adapted for displaying photographic information and a pattern, etc., with a liquid crystal within the camera view finder, a polarizing arrangement which creates a contrast between a portion of the display and another is combined with the liquid crystal. This produces a display with a high contrast portion and a low contrast portion.
摘要:
A camera constructed from at least three different units or parts arranged in combination, with the units being releasably attached to each other by respective individual coupling devices which are made with a basically similar construction and which are operated to lock the individual camera parts together and to unlock the connection therebetween upon release actuation of the coupling devices.
摘要:
A recording apparatus records an image by scanning a first recording head relative to a recording medium of a particular type. The apparatus includes the first recording head, a pattern recording controller, a reader, a restoring device, a second recording head, a discriminator and a control unit. The pattern recording controller controls recording of a predetermined pattern with the first recording head at a predetermined timing either on the recording medium or on a pattern recording medium different from the recording medium. The reader reads the predetermined pattern and the restoring device performs a discharge restoring operation of the recording head. The discriminator discriminates a recording state of the first recording head, based on the predetermined pattern read by the reader. The control unit enables the second recording head to record the image to be recorded by the first recording head, in a case that after the discriminator discriminates the recording state as being poor and thereafter the discharge restoring operation performed by the restoring device and a pattern recording operation by the pattern recording controller have been executed a predetermined number of times, the discriminator has discriminated the recording state as being still poor.
摘要:
A film image reading apparatus has a conveying section for sequentially conveying a plurality of film originals to a reading position, a reading section for reading an image of a film original conveyed to the reading position by the conveying section, a detecting section for detecting a direction of the image of the film original conveyed to the reading position, and a controlling section for controlling outputting of an image signal from the reading section in accordance with the direction of the image detected by the detecting section.
摘要:
A camera having an assembling adjusting device comprises a casing for a camera body, a photo-sensor disposed in the casing to receive an object image, a relay optical system for relaying a light beam from the object, a holder arranged in the casing to hold the relay optical system, a photo-sensor array for producing a focus detection signal in response to a focusing light from the relay optical system, a package for accommodating the photo-sensor array, a coupler for coupling the package to the holder, and compensation means for adjusting an attitude of the package to the holder to compensate for an inclination of the photo-sensor array plane to the focusing light.