Planar light source device and image reading device

    公开(公告)号:US07048427B2

    公开(公告)日:2006-05-23

    申请号:US10443563

    申请日:2003-05-22

    IPC分类号: F21V7/04

    摘要: A planar light source device comprises a light guide member having light scattering members for scattering light on the rear face of it, and a first LED module and a second LED module arranged on an end face of the light guide member. The light guide member has an area having no light scattering members in the vicinity of the LED modules, and has a corner-cut portion obtained by cutting a corner at an inclination angle θ in the light outputting direction of the first LED module. The first LED module is provided in the middle of the short side face of the light guide member, and the second LED module is provided on the corner-cut portion of the light guide member. The light from the first and second LED modules is outputted into an area where light scattering members are sparse.

    Light-guide plate, area light source apparatus, and image reading apparatus
    2.
    发明申请
    Light-guide plate, area light source apparatus, and image reading apparatus 审中-公开
    导光板,区域光源装置和图像读取装置

    公开(公告)号:US20070159806A1

    公开(公告)日:2007-07-12

    申请号:US11717362

    申请日:2007-03-13

    IPC分类号: G09F13/04

    摘要: An LED module is mounted on a case frame by fitting three pins formed at a concave portion of the case frame, into holes in the LED module corresponding to the pins. A light-guide plate is fitted into the case frame formed integrally with a bottom cover in a descending direction. The light-guide plate is fixed by a hook provided for the case frame. A space between the light-guide plate and the LED module is prevented by pressing the light-guide plate to the LED module with a pressing spring. Since the light-guide plate is fitted into the case frame in the descending direction and a light scattering sheet is adhered to an outer end surface of the case frame in the descending direction, it is not necessary to reverse the worked product and so the number and time of working processes can be saved.

    摘要翻译: LED模块通过将形成在壳体框架的凹部处的三个销嵌入对应于销的LED模块中的孔中而安装在壳体框架上。 导光板装配在与底盖一体地沿下降方向形成的壳体框架中。 导光板通过设置在壳体框架上的钩固定。 通过按压弹簧将导光板按压到LED模块来防止导光板和LED模块之间的空间。 由于导光板沿下降方向嵌入壳体框架中,并且光散射板沿下降方向粘附到壳体框架的外端面,因此不需要使加工的产品反转,因此数量 可以节省工作流程的时间。

    Image reading apparatus, its light source, and shading correcting apparatus
    3.
    发明授权
    Image reading apparatus, its light source, and shading correcting apparatus 失效
    图像读取装置,其光源和阴影校正装置

    公开(公告)号:US07224494B2

    公开(公告)日:2007-05-29

    申请号:US09992869

    申请日:2001-11-14

    IPC分类号: H04N1/04

    摘要: In an image reading apparatus using a contact image sensor, an area light source for reading an image from a film original is provided. The area light source has a light guide plate and an LED device in the center of a side surface on the shorter side of the plate. In the LED device, red-, green-, and blue-LED chips are mounted on the same package and red-, green-, and blue-light are switched and lit. A white bottom plate covers the bottom surface of the light guide plate and a white case frame covers the four side surfaces. A scattering sheet is adhered to the upper surface of the white case frame, that is, a light emitting surface. On the rear surface of the light guide plate, light scatterers are formed by screen printing so that a specific pattern is drawn by high-reflectance white ink.

    摘要翻译: 在使用接触式图像传感器的图像读取装置中,提供了用于从胶片原稿读取图像的区域光源。 区域光源在板的短边的侧面的中心具有导光板和LED装置。 在LED设备中,红,绿和蓝LED芯片安装在相同的封装上,红,绿和蓝光被切换和点亮。 白色底板覆盖导光板的底面,白色框架覆盖四个侧面。 散射片粘附到白色框架的上表面,即发光表面。 在导光板的后表面上,通过丝网印刷形成光散射体,使得通过高反射率白色墨水画出特定图案。

    Planar light source and method for forming a light scatterer for a planar light source
    4.
    发明授权
    Planar light source and method for forming a light scatterer for a planar light source 失效
    平面光源和用于形成平面光源的光散射体的方法

    公开(公告)号:US06776494B2

    公开(公告)日:2004-08-17

    申请号:US10309871

    申请日:2002-12-04

    IPC分类号: F21V704

    摘要: A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet covering a top surface of said light guiding member; and dot-like light sources provided on one side face or on two side faces opposite to each other of said light guiding member and emitting light to said light guiding member, and a light scatterer pattern is provided on a bottom surface of the light guiding member. When a side face thereof is inclined, a light scatterer pattern may be provided also on the inclined side face or just below the inclined side face.

    摘要翻译: 使用一个或两个点状光源的平面显示灯。 该平面显示灯包括板状导光部件, 覆盖所述导光构件的底面的底板; 壳体框架,其覆盖所述导光构件的侧面; 覆盖所述导光构件的顶面的漫射片; 以及点状光源,其设置在所述导光部件的一个侧面或彼此相对的两个侧面上,并且向所述导光部件发射光,并且在所述导光部件的底面上设置有光散射体图案 。 当其侧面倾斜时,也可以在倾斜侧面上或刚好在倾斜侧面的下方设置光散射体图案。

    LIGHT-GUIDE PLATE, AREA LIGHT SOURCE APPARATUS AND IMAGE READING APPARATUS
    5.
    发明申请
    LIGHT-GUIDE PLATE, AREA LIGHT SOURCE APPARATUS AND IMAGE READING APPARATUS 审中-公开
    光导板,区域光源装置和图像读取装置

    公开(公告)号:US20080285305A1

    公开(公告)日:2008-11-20

    申请号:US12021554

    申请日:2008-01-29

    IPC分类号: F21V8/00 F21V11/00

    摘要: An LED module is mounted on a case frame by fitting three pins formed at a concave portion of the case frame, into holes in the LED module corresponding to the pins. A light-guide plate is fitted into the case frame formed integrally with a bottom cover in a descending direction. The light-guide plate is fixed by a hook provided for the case frame. A space between the light-guide plate and the LED module is prevented by pressing the light-guide plate to the LED module with a pressing spring. Since the light-guide plate is fitted into the case frame in the descending direction and a light scattering sheet is adhered to an outer end surface of the case frame in the descending direction, it is not necessary to reverse the worked product and so the number and time of working processes can be saved.

    摘要翻译: LED模块通过将形成在壳体框架的凹部处的三个销嵌入对应于销的LED模块中的孔中而安装在壳体框架上。 导光板装配在与底盖一体地沿下降方向形成的壳体框架中。 导光板通过设置在壳体框架上的钩固定。 通过按压弹簧将导光板按压到LED模块来防止导光板和LED模块之间的空间。 由于导光板沿下降方向嵌入壳体框架中,并且光散射片沿下降方向粘附到壳体框架的外端面,因此不需要使加工的产品反转,因此数量 可以节省工作流程的时间。

    Planar display lamp and method of forming a light scatterer pattern
    7.
    发明授权
    Planar display lamp and method of forming a light scatterer pattern 失效
    平面显示灯和形成光散射体图案的方法

    公开(公告)号:US06502946B1

    公开(公告)日:2003-01-07

    申请号:US09787475

    申请日:2001-03-19

    IPC分类号: F21V704

    摘要: A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet covering a top surface of said light guiding member; and dot-like light sources provided on one side face or on two side faces opposite to each other of said light guiding member and emitting light to said light guiding member, and a light scatterer pattern is provided on a bottom surface of the light guiding member. When a side face thereof is inclined, a light scatterer pattern may be provided also on the inclined side face or just below the inclined side face.

    摘要翻译: 使用一个或两个点状光源的平面显示灯。 该平面显示灯包括板状导光部件, 覆盖所述导光构件的底面的底板; 壳体框架,其覆盖所述导光构件的侧面; 覆盖所述导光构件的顶面的漫射片; 以及点状光源,其设置在所述导光部件的一个侧面或彼此相对的两个侧面上,并且向所述导光部件发射光,并且在所述导光部件的底面上设置有光散射体图案 。 当其侧面倾斜时,也可以在倾斜侧面上或刚好在倾斜侧面的下方设置光散射体图案。