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    • 69. 发明专利
    • PHOTOSCANNING OPTICAL SYSTEM
    • JPS62151821A
    • 1987-07-06
    • JP29231085
    • 1985-12-26
    • CANON KK
    • TOKUHARA MICHIHIRO
    • G02B26/08G02B26/10G03B27/70G03G15/04G03G15/047
    • PURPOSE:To reduce power consumption and decrease a rise in the temperature in a machine by utilizing unnecessary light effectively by irradiating a photosensitive body with part of nonsignal line from an electromechanical optical modulation element for electrostatic discharging. CONSTITUTION:The electromechanical optical modulation element (DMD) 27 used for a printer generates signal light B from a mirror swinging part and nonsignal light C from a reflecting surface except the mirror switching part. A lens 60, a mirror 61, etc., are arranged in the direction of the nonsignal light C, which is used for electrostatic discharging to illuminates a specific position on the photosensitive body 30. Therefore, the light for electrostatic discharging is obtained from only the light from a light source 21 for driving the DMD 27, so a light source such as a conventional lamp for electrostatic discharging is not necessary and the power consumption is reducible. Further, the rise in the temperature in the machine due to the heat of the lamp, etc. is reduced.
    • 70. 发明专利
    • PICTURE INPUT EQUIPMENT
    • JPS62149252A
    • 1987-07-03
    • JP29005185
    • 1985-12-23
    • FUJI XEROX CO LTD
    • IMOTO YOSHIYA
    • H04N1/04G02B26/02G03B27/50G03B27/70G06K9/20G06T1/00
    • PURPOSE:To prevent the decrease in the original density and to miniaturize the equipment by providing a polarization plate between a light source and an original and between the original and a read side respectively so that the polarized direction is made orthogonal thereto thereby cutting off a regularly reflected light. CONSTITUTION:A light lambda1 from a light source 1 passes through a polarized plate 11, becomes a light lambda2 having a polarized component in X direction only and is irradiated to an original face 2. The light lambda2 is reflected in the original face 2 and divided into a regularly reflected light lambda3' and a scattered light lambda3. The light lambda3, lambda3' are irradiated from the incident point of the light lambda2, enter the polarized plate 13, where the light becomes lights lambda4', lambda4 having only the Y direction component, they are collected by a lens 3 and the image is formed in an image sensor 4. Since the light lambda3' is a light having only the X direction component, it is cut off by the polarization plate 13 and not incident in the sensor 4. On the other hand, the light lambda3 is a random light, the Y component transmitting through the polarization plate 13 remains and density information is read by the sensor 4. The light source 1 and the sensor 4 are arranged closely, then the miniaturization of the entire equipment is attained.