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    • 48. 发明授权
    • Image reading apparatus
    • 图像读取装置
    • US5394205A
    • 1995-02-28
    • US222724
    • 1994-03-30
    • Toru OchiaiMasahiro MochizukiSoichi IkedaKatsuhiro Sato
    • Toru OchiaiMasahiro MochizukiSoichi IkedaKatsuhiro Sato
    • G02B7/36G03B21/53H04N1/03G03B3/10
    • H04N1/02409G02B7/36G03B21/53H04N1/03
    • An apparatus comprises an image sensing optical system including an image pickup element for converting an image to an electrical signal and a projection lens for projecting an image onto a photo-sensing plane of the image pickup element. The image sensing optical system is driven along an optical axis thereof while maintaining a relative positional relationship between the projection lens and the image pickup element to adjust the focal position. An apparatus may also comprise an image sensing optical system including an image pickup element for scanning an image to convert it to an electrical signal and a projection lens for projecting an image onto a photo-sensing plane of the image pickup element, a focus adjusting device for adjusting a focal position of the image sensing optical system and a detector for detecting an in-focus position of the image sensing optical system to the object. The focus adjusting device is controlled in accordance with the output of the detector so that the object is always within a depth of focus of the image sensing optical system.
    • 一种装置包括图像感测光学系统,其包括用于将图像转换为电信号的图像拾取元件和用于将图像投影到图像拾取元件的感光平面上的投影透镜。 摄像光学系统沿其光轴被驱动,同时保持投影透镜和图像拾取元件之间的相对位置关系以调节焦点位置。 装置还可以包括图像感测光学系统,其包括用于扫描图像以将其转换为电信号的图像拾取元件和用于将图像投影到图像拾取元件的感光平面上的投影透镜;焦点调节装置 用于调整图像感测光学系统的焦点位置和用于检测图像感测光学系统对焦的对焦位置的检测器。 根据检测器的输出来控制焦点调节装置,使得对象总是在图像感测光学系统的焦深范围内。
    • 50. 发明授权
    • Electrophotographic photoreceptor
    • 电子照相感光体
    • US5028505A
    • 1991-07-02
    • US436617
    • 1989-11-15
    • Yutaka AkasakiKatsumi NukadaKatsuhiro Sato
    • Yutaka AkasakiKatsumi NukadaKatsuhiro Sato
    • G03G5/06
    • G03G5/0609G03G5/0612G03G5/0618G03G5/0637
    • An electrophotographic photoreceptor is disclosed, comprising a conductive substrate having thereon a photosensitive layer, wherein the photosensitive layer comprises at least one compound selected from the group consisting of a compound of formula (I), a compound of formula (II), and a compound of formula (III) as defined below: ##STR1## wherein X.sup.I represents a cyano group, an alkoxycarbonyl group, or an aryloxycarbonyl group; R.sup.I.sub.1 and R.sup.I.sub.2 each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylcarbonyl group, an arylcarbonyl group, a nitro group, a halogen atom, or a cyano group; A.sup.I represents ##STR2## wherein R.sup.I.sub.3 and R.sup.I.sub.9 each represents a hydrogen atom, an alkyl group, a nitro group, a halogen atom, or a cyano group; and m and n each represents an integer of 0 to 3; ##STR3## wherein X.sup.II represents O, C(CN).sub.2 or C(CO.sub.2 R.sup.II).sub.2, wherein R.sup.II is an alkyl group; R.sup.II.sub.1 and R.sup.II.sub.2 each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a nitro group, a halogen atom, or a cyano group; and m' and n' each represents an integer of 0 to 2; and ##STR4## wherein R.sup.III.sub.1 and R.sup.III.sub.2 each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylcarbonyl group, an arylcarbonyl group, a nitro group, a halogen atom, or a cyano group,A.sup.III represents ##STR5## wherein R.sup.III.sub.3 and R.sup.III.sub.9 each represents a hydrogen atom, an alkyl group, a nitro group, a halogen atom, or a cyano group; and m" and n" each represents an integer of 0 to 3.
    • 公开了一种电子照相感光体,其包括其上具有感光层的导电基底,其中感光层包含至少一种选自式(I)化合物,式(II)化合物和化合物 式(III)的定义如下:其中XI表示氰基,烷氧基羰基或芳氧基羰基;(I)其中X 1表示氰基, R 1和R 2各自表示氢原子,烷基,芳基,烷氧基羰基,芳氧基羰基,烷基羰基,芳基羰基,硝基,卤素原子或氰基。 AI表示 ,其中RI3和RI9各自表示氢原子,烷基,硝基,卤素原子或氰基; m和n分别表示0〜3的整数, (II)其中XII表示O,C(CN)2或C(CO 2 RII)2,其中RII是烷基; RII1和RII2各自表示氢原子,烷基,芳基,烷氧基羰基,芳氧基羰基,硝基,卤素原子或氰基; m'和n'各自表示0〜2的整数, (III)其中RIII1和RIII2各自表示氢原子,烷基,芳基,烷氧基羰基,芳氧基羰基,烷基羰基,芳基羰基,硝基,卤素原子或 (3)其中RIII3和RIII9各自表示氢原子,烷基,烷基,环烷基,环烷基,环烷基, 硝基,卤素原子或氰基; m“,n”表示0〜3的整数。