INFRARED SENSOR AND INFRARED CAMERA INCLUDING THE SAME

    公开(公告)号:JPH01243480A

    公开(公告)日:1989-09-28

    申请号:JP7080888

    申请日:1988-03-24

    Abstract: PURPOSE:To obtain photoelectric sensibility effective to infrared rays up to a longer wavelength by using the mixed-crystal p-type Si1-xGex of P-type Si and Ge as a semiconductor. CONSTITUTION:An infrared sensor employs a metal-semiconductor rectifying contact, and a p-type Si1-xGex mixed crystal is used as a semiconductor. That is, the mixed-crystal thin-film of Si and Ge is epitaxial-grown onto an Si substrate in a Schottky junction, and the wavelength of infrared rays having effective photoelectric sensibility is made longer than that of a conventional Pt-P-type Si Schottky junction by utilizing the reduction of forbidden band width due to the mixing of Ge and the decrease of the height of the trouble of the Schottky junction with the reduction of forbidden band width. Accordingly, the height of trouble determining the threshold wavelength of photoelectric sensibility to infrared rays is further lowered, thus acquiring the infrared sensor having photoelectric sensibility effective up to a longer wavelength.

    REMOTE SENSOR
    4.
    发明专利

    公开(公告)号:JPS6355423A

    公开(公告)日:1988-03-09

    申请号:JP19809986

    申请日:1986-08-26

    Abstract: PURPOSE:To obtain a high resolution sensor having a high performance by adding a simple means, by providing an instantaneous visual field correcting means on an image pickup element, so that conversion of an instantaneous visual field to the image pickup element, which follows up a movement of a flying object is not generated. CONSTITUTION:In a period in which a unit picture element of an image pickup element 1 is executing an image pickup of a visual field A, namely, until the time immediately before a time point t0+(a) from a time point t0, even if the element 1 moves by an instantaneous visual field correcting optical system 2, an instantaneous visual field to its unit picture element is not converted. Also, it is held as its visual field A, and in a signal read-out period to the time point t0+(a), image information of the visual field A is outputted. Simultaneously, the instantaneous visual field to the unit picture element is converted stepwise to a visual field B, and enters into the next image pickup period from the time point t0+(a). Also, in the same way as a first period, in the image pickup period extending from the time point t0+(a) to the time point t0+2a, the instantaneous visual field is held as t he visual field B, and in a signal read-out field B is outputted. Thereafter, in the same way, the image pickup can be executed continuously.

    ROTARY POLYHEDRON TYPE TWO-AXIS SCANNING MIRROR

    公开(公告)号:JPS6247523A

    公开(公告)日:1987-03-02

    申请号:JP18750885

    申请日:1985-08-28

    Abstract: PURPOSE:To obtain a two-axis scanning mirror light in weight and with easy scanning control by low electric power by arranging plural reflecting mirrors cylindrically while varying their inclination in the axial direction by the prescribed angle each in order. CONSTITUTION:In case of rotating a rotary polyhedron type two axis scanning mirror 11 at a fixed low speed, a reflecting mirror 11-1 first scans the object in the east and west directions at the angle of view corresponding to the number thereof, the electromagnetic wave from the object is detected by a detector 15 to perform the prescribed image pick-up in the territory in the south-north width. The reflecting mirror 11-2 inclined at theta deg. in the south direction for the mirror 11-1, then picks up an image by scanning the south territory adjacent to the scanned zone of the object in the east-west direction. Similarly the different territory adjacent to the object is scanned in order by each reflecting mirror 11-3...11-n and the image pick-up is completed by performing the scanning of the whole body of the object. And when the number of reflecting mirrors and inclination are adequately set according to the number of picture elements of the detector and the angle of visibility and resolution for the object, the two dimensional scanning of the whole objects can be performed by the rotation around the center axis of the mirror 11.

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