Optical scanning apparatus
    1.
    发明授权
    Optical scanning apparatus 失效
    光学扫描装置

    公开(公告)号:US5028103A

    公开(公告)日:1991-07-02

    申请号:US581194

    申请日:1990-09-11

    摘要: An optical scanning apparatus in which a plurality of scanning light beams are deflected by a light deflector and the deflected light beams impinge onto a spherical lens having an f-.theta. characteristic at inclinations with respect to the optical axis of the lens so as to be focused on a scanning object. The apparatus is arranged to meet the following condition: ##EQU1## where, f represents the focal distance of the spherical lens (mm), .omega. represents the effective scanning rotation angle of the light deflector (deg), .DELTA.(.omega.) represents the amount of curve of the scanning line caused by the light deflecting element in the subscanning direction (mm), .rho. represents the resolution of the scan on the scanning object (lines/mm), .theta. represents the angle of inclination of any one of the light beams with respect to the optical axis of the lens within a plane which contains the optical axis of the lens and which is perpendicular to the scanning axis (deg), L represents the distance between the first reflection surface of the light deflector and the principal plane of the lens adjacent the scanning object along the optical axis (mm), and h represents the height of incidence of the any one of the light beams to the lens (mm).

    摘要翻译: 一种光学扫描装置,其中多个扫描光束被光偏转器偏转,并且偏转的光束照射到具有相对于透镜的光轴倾斜的fθ特性的球面透镜上,以便被聚焦 在扫描对象上。 该装置被设置为满足以下条件:其中,f表示球面透镜的焦距(mm),ω表示光偏转器的有效扫描旋转角度(deg),DELTA(ω)表示量 由扫描线的副扫描方向(mm)引起的扫描线的曲线,rho表示扫描对象上的扫描分辨率(行/ mm),θ表示任一光束的倾斜角 相对于包含透镜的光轴并且垂直于扫描轴(deg)的平面内的透镜的光轴,L表示光偏转器的第一反射表面与主要平面之间的距离 沿着光轴(mm)与扫描物体相邻的透镜,h表示任一个光束到透镜的入射高度(mm)。

    Non-invasive environment history indicator for reusable device
    2.
    发明授权
    Non-invasive environment history indicator for reusable device 失效
    非侵入性环境历史指标可重用设备

    公开(公告)号:US06951186B2

    公开(公告)日:2005-10-04

    申请号:US09774626

    申请日:2001-02-01

    申请人: Motomu Fukasawa

    发明人: Motomu Fukasawa

    摘要: In an apparatus including a unit which is recoverable and reusable after use, an environmental history indicator member having a property variable according to an environmental history of use of the apparatus and arranged not to participate in any functions of the apparatus during use of the apparatus is disposed inside the unit or adjacent to the unit. By checking the state of the environmental history indicator member when the unit is recovered from the apparatus after the end of service of the apparatus, a management system for reuse is arranged to easily and efficiently decide the unit to be reusable or no longer usable.

    摘要翻译: 在包括使用后可恢复和可重复使用的单元的设备中,根据设备的使用环境历史具有可变性的环境历史指示器构件,并且在使用设备期间被设置为不参与设备的任何功能, 设置在单元内或与单元相邻。 通过在设备的服务结束后从设备恢复单元检查环境历史指示器成员的状态,设置重用管理系统以容易且有效地确定该单元是可重用的或不再可用的。

    LED head, image forming apparatus, and method of measuring amount of light from LED array
    3.
    发明授权
    LED head, image forming apparatus, and method of measuring amount of light from LED array 有权
    LED头,图像形成装置以及来自LED阵列的光量的测量方法

    公开(公告)号:US06473106B2

    公开(公告)日:2002-10-29

    申请号:US09725817

    申请日:2000-11-30

    申请人: Motomu Fukasawa

    发明人: Motomu Fukasawa

    IPC分类号: B41J2385

    CPC分类号: B41J2/45

    摘要: An LED printer head capable of reducing influence of a sub emission band by use of a rod lens array and thus prevent light of the sub emission band from reaching a development level. The LED printer head consists of an LED array of LEDs to emit light according to an image signal, which are arrayed at the resolution pitch P of not less than 600 dpi, and a multi-lens array for forming an emission image of the LED array on a photosensitive body. Each of the LEDs of the LED array has a main emission band of an emission spectrum and another sub emission band having a peak level of not less than 0.01 as a photosensitive intensity ratio R to the main emission spectrum, and a difference D between best total conjugate lengths at peak wavelengths of the main and sub emission bands by the multi-lens array is at least 0.15. Optical adjustment of the LED array and the multi-lens array is effected so that light of the main emission band is focused in a predetermined imaging relation on the predetermined photosensitive body.

    摘要翻译: 一种LED打印头,其能够通过使用棒状透镜阵列减少副发射带的影响,从而防止副发射带的光达到显影水平。 LED打印机头由根据以不低于600dpi的分辨率间距P排列的图像信号发光的LED阵列和用于形成LED阵列的发射图像的多透镜阵列 在感光体上。 LED阵列的每个LED具有发射光谱的主发射带,并且具有不小于0.01的峰值水平的另一个子发射带作为与主发射光谱的光敏强度比R,以及最佳总和之间的差D 通过多透镜阵列的主发射带和次发射带的峰值波长处的共轭长度至少为0.15。 实现LED阵列和多透镜阵列的光学调整,使得主发射带的光以预定的成像关系聚焦在预定的感光体上。

    Diffractive optical element and image reader using the same
    6.
    发明授权
    Diffractive optical element and image reader using the same 失效
    衍射光学元件和使用其的图像读取器

    公开(公告)号:US06683718B2

    公开(公告)日:2004-01-27

    申请号:US09961422

    申请日:2001-09-25

    IPC分类号: G02B518

    摘要: A laminate-type diffractive optical element which is easily producible and which allows high optical performance to be easily achieved, and an optical system using the same, are disclosed. In the diffractive optical element formed by laminating a plurality of diffraction gratings, when the distance between the uppermost portion of one diffraction grating and the lowermost portion of the other diffraction grating in two diffraction gratings adjacent to each other along the incident direction of a light is represented by D (&mgr;m), these two diffraction gratings are arranged to satisfy the following relation: 10 &mgr;m

    摘要翻译: 公开了容易制造且容易实现高光学性能的层叠型衍射光学元件,以及使用该衍射光学元件的光学系统。 在通过层叠多个衍射光栅形成的衍射光学元件中,沿着光的入射方向彼此相邻的两个衍射光栅中的一个衍射光栅的最上部与另一衍射光栅的最下部之间的距离为 由D(mum)表示,这两个衍射光栅被设置为满足以下关系:10μm

    Device for illuminating an original
    7.
    发明授权
    Device for illuminating an original 失效
    照明原件的装置

    公开(公告)号:US5875377A

    公开(公告)日:1999-02-23

    申请号:US638229

    申请日:1996-04-26

    申请人: Motomu Fukasawa

    发明人: Motomu Fukasawa

    IPC分类号: G03B27/54 G03G15/04 H04N1/028

    摘要: A device for illuminating an original for use in an original reading apparatus for reading an original placed on an original supporting table has a light source having a filament having its lengthwise direction disposed so as to be perpendicular to a reading line.

    摘要翻译: 用于照原用于读取放置在原始支撑台上的原稿的原稿读取装置中的原稿的装置具有灯丝,其长度方向布置成垂直于读取线。

    Image reading lens
    8.
    发明授权
    Image reading lens 失效
    图像读取镜头

    公开(公告)号:US5329403A

    公开(公告)日:1994-07-12

    申请号:US69852

    申请日:1993-06-01

    申请人: Motomu Fukasawa

    发明人: Motomu Fukasawa

    IPC分类号: G02B13/18 G02B13/24

    CPC分类号: G02B13/24 G02B13/18

    摘要: An image reading lens that is constructed of, in succession from the object side, a stop, a meniscus-shaped positive first lens having its convex surface at the image plane side, and a negative second lens having its concave surface at the image plane side. Both the lens surfaces of the first lens and at least one lens surface of the second lens are constructed of an aspherical surface. The shape of the object side aspherical surface of the first lens is formed so as to be inside a reference spherical surface.

    摘要翻译: 一种图像读取透镜,其从物体侧连续地构成一个停止部,在像面侧具有凸面的弯液面状的正的第一透镜,在像面侧具有凹面的负的第二透镜 。 第一透镜的透镜表面和第二透镜的至少一个透镜表面都由非球面构成。 第一透镜的物体侧非球面的形状被形成为在参考球面内。

    Optical element and illumination apparatus having same
    9.
    发明授权
    Optical element and illumination apparatus having same 失效
    具有相同的光学元件和照明装置

    公开(公告)号:US07336403B2

    公开(公告)日:2008-02-26

    申请号:US10439239

    申请日:2003-05-16

    申请人: Motomu Fukasawa

    发明人: Motomu Fukasawa

    IPC分类号: H04N1/04

    摘要: An object of the present invention is to efficiently shape a light flux emitted from a light source into a linear shape and so as to provide an optical element having high versatility that can be widely used irrespective of the original sizes and to provide an illumination apparatus having such an illumination apparatus. The optical element has a reflection surface in the form of an inner side of a curved surface that is formed by rotating a parabola about a rotation axis including the focus of the parabola or a point near the focus of the parabola.

    摘要翻译: 本发明的目的是有效地将从光源发出的光束成形为线状,从而提供具有高通用性的光学元件,可以与原始尺寸无关地广泛使用,并提供具有这样的照明装置 照明装置。 光学元件具有弯曲表面的内侧形式的反射表面,其通过围绕包括抛物线的焦点或靠近抛物线的焦点的点旋转抛物线而形成。

    Zoom lens and imaging apparatus having the same
    10.
    发明申请
    Zoom lens and imaging apparatus having the same 失效
    变焦镜头和成像设备具有相同的功能

    公开(公告)号:US20060082900A1

    公开(公告)日:2006-04-20

    申请号:US11250016

    申请日:2005-10-12

    IPC分类号: G02B15/14

    CPC分类号: G02B15/177

    摘要: A zoom lens comprises, from the object side to the image side, a first lens group, a second lens group, and a rear group including one or more lens groups, where the first and second lens groups can move at the time of zooming, and wherein the first lens group comprises, from the object side to the image side, a first lens of negative refractive power, and a second lens of positive refractive power.

    摘要翻译: 变焦透镜包括从物体侧到像侧,第一透镜组,第二透镜组和包括一个或多个透镜组的后组,其中第一和第二透镜组在变焦时可以移动, 并且其中所述第一透镜组包括从所述物体侧到所述像侧的具有负折光力的第一透镜和具有正屈光力的第二透镜。