Information transmission apparatus and image reading apparatus with
selective movement and tilting of IR rejecting device
    203.
    发明授权
    Information transmission apparatus and image reading apparatus with selective movement and tilting of IR rejecting device 失效
    信息传输装置和具有选择性移动和倾斜的IR拒绝装置的图像读取装置

    公开(公告)号:US5420698A

    公开(公告)日:1995-05-30

    申请号:US19315

    申请日:1993-02-18

    CPC classification number: H04N1/03 H04N2201/02493

    Abstract: An infrared-rejecting device is positioned in a light path and tilted thereto to reflect infrared radiation and to prevent infrared radiation from being applied to a photodetector or a line sensor for preventing the photodetector or the line sensor from operating in error or from suffering a reduction in its resolution. The infrared-rejecting device may be positioned out of the light path to allow light applied to the photodetector or the line sensor to remain unattenuated, i.e., to prevent the light applied to the photodetector or the line sensor from being reduced in intensity.

    Abstract translation: 红外阻挡装置被定位在光路中并且倾斜以反射红外辐射并且防止红外辐射被施加到光电检测器或线传感器,以防止光电检测器或线传感器错误地操作或者不被减少 在其决议。 红外阻挡装置可以位于光路外,以允许施加到光电检测器或线传感器的光保持不衰减,即防止施加到光电检测器或线传感器的光强度降低。

    Document reading apparatus, having a body unit for holding apparatus
components
    204.
    发明授权
    Document reading apparatus, having a body unit for holding apparatus components 失效
    文件读取装置,具有用于保持装置部件的主体单元

    公开(公告)号:US5399850A

    公开(公告)日:1995-03-21

    申请号:US997444

    申请日:1992-12-28

    Abstract: A document reading apparatus comprises a light transmitting plate in contact with a document, a light source to light the document, a plurality of lenses arranged in line at a specified interval to image light reflected from the document and form a scaled-down document image, a plurality of semiconductor chips having a multiplicity of photoelectric transducer elements arranged in line respectively corresponding to each lens in order to receive the document image, a circuit wiring base plate on which semiconductor chips are placed, and a body unit to hold the light transmitting plate, the light source, and the circuit wiring base plate. The document image is formed in a scaled-down state by the plurality of lenses, and received by the plurality of semiconductor chips respectively corresponding to each lens. Since the document image is formed in a scaled-down state, it is not necessary to arrange the photoelectric transducer elements continuously between adjacent semiconductor chips. Therefore, a clearance can be kept between the semiconductor chips, and it is not necessary to arrange the photoelectric transducer elements substantially with the same length as the document, thereby a document reading apparatus which is handled as a part is constructed.

    Abstract translation: 文件读取装置包括与原稿接触的透光板,用于点亮原稿的光源,以指定间隔排成一行的多个透镜,以对从文档反射的光进行成像并形成缩小的文档图像, 多个半导体芯片,具有多个分别对应于每个透镜的光电换能器元件以便接收原稿图像,半导体芯片放置在其上的电路布线基板和用于保持透光板的主体单元 ,光源和电路布线基板。 原稿图像通过多个透镜以缩小状态形成,并被分别对应于每个透镜的多个半导体芯片接收。 由于原稿图像形成为按比例缩小状态,因此不需要在相邻的半导体芯片之间连续配置光电换能器元件。 因此,可以在半导体芯片之间保持间隙,并且不需要将光电传感器元件基本上与文件的长度大致相同,从而构成作为一部分处理的原稿读取装置。

    High efficiency linear light source
    205.
    发明授权
    High efficiency linear light source 失效
    高效线性光源

    公开(公告)号:US5335158A

    公开(公告)日:1994-08-02

    申请号:US887197

    申请日:1992-05-21

    CPC classification number: H04N1/02835 H04N1/02815 H04N1/0284 H04N2201/02493

    Abstract: A linear light source for a film scanner is disclosed which includes an elongated light integrating cavity, formed within a solid illumination body, having diffusely reflective walls. Light is introduced into the cavity through an input port, and an output beam of diffuse light is produced through a slot which is generally parallel to the longitudinal axis of the integrating cavity. In order to increase the efficiency of the light source, light is introduced into the cavity through a high collection non-imaging optical device formed as a hollow bore within the illumination body.

    Abstract translation: 公开了一种用于胶片扫描仪的线性光源,其包括形成在固体照明体内的细长的光积分腔,具有漫反射壁。 光通过输入端口被引入空腔,并且散射光的输出光束通过大致平行于积分腔的纵向轴线的槽产生。 为了提高光源的效率,通过在照明体内形成为中空孔的高收集非成像光学装置将光引入空腔。

    System for producing a halftone film or a printing plate
    206.
    发明授权
    System for producing a halftone film or a printing plate 失效
    用于生产薄膜薄膜或印刷板的系统

    公开(公告)号:US5223954A

    公开(公告)日:1993-06-29

    申请号:US574190

    申请日:1990-08-29

    Abstract: A color original such as a color reversal film and the like which may be different size (for example, the Brownie, 4".times.5", 35 mm) is fitted or stored in the original cassette mounted on the cassette base. The original is read to obtain a whole image data by a transmission type or a reflection type image sensor without catching any flare, and an auxiliary scanning is done sequentially on lines of the original, reading the whole surface thereof, so as to output directly the plates of C,M,Y and black (K). Because of the procedure described above the operation to produce the plates is easily done at a high speed by even an unskilled operator. The operation for scanning the original image comprises the steps of scanning (pre-scanning) the original image in rough, and then scanning (main scanning) it in detail. The original image is displayed in accordance with data of the pre-scanning and the data of the pre-scanning is stored in a memory. On the basis of the stored data, the condition parameters for the image processing are determined automatically (or manually) and the image output is carried out at a high speed and high efficiency by judging the relationship which is provided by the condition parameters, between the original and the photosensitive material so as to make remarkable improvements in producing the printing plates.

    Illumination control for raster input scanners
    208.
    发明授权
    Illumination control for raster input scanners 失效
    光栅输入扫描仪的照明控制

    公开(公告)号:US4495422A

    公开(公告)日:1985-01-22

    申请号:US325158

    申请日:1981-11-27

    CPC classification number: H04N1/03 H04N2201/02493

    Abstract: A raster input scanner of the type having a linear array for scanning a relatively moving document line by line, there being lamp means to illuminate at least a line-like portion of the document and optical means to transmit image rays from the document to the array. To provide uniform illumination and obviate illumination degradation due to the effects of cosine 4th law, flare light, lamp fall-off, etc., an apertured mask is provided between the array and the document, the mask aperture uniformly changing in size from a minimum at the array center to a maximum at the array ends. To obviate system M.T.F. degradation, the height of the mask aperture is made less than the width of the array photosites.

    Abstract translation: 一种具有用于逐行扫描相对移动的文档的线性阵列的类型的光栅输入扫描器,具有照亮文档的至少一个线状部分的灯装置和用于将图像光线从文档传输到阵列的光学装置 。 为了提供均匀的照明并且由于余弦第4定律,闪光灯,灯落下等的影响而消除照明劣化,在阵列和文件之间提供有孔掩模,掩模孔径从最小尺寸均匀地改变 在阵列中心到阵列末端的最大值。 为了避免系统M.T.F. 降解时,使掩模孔的高度小于阵列光斑的宽度。

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