公开(公告)号：US06455834B2

公开(公告)日：2002-09-24

申请号：US09785178

申请日：2001-02-20

Applicant: Hisayoshi Fujimoto ,  Minori Torama

Inventor： Hisayoshi Fujimoto ,  Minori Torama

IPC: H04N104

CPC classification number: H04N1/0312 ,  H04N1/0314 ,  H04N1/0318 ,  H04N2201/03112 ,  H04N2201/03116 ,  H04N2201/03125 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/0317

Abstract: An image reading apparatus includes a light source, an elongate light guide member for guiding light emitted from the light source toward an image read line, and a plurality of light receiving elements for receiving light reflected at the image read line. The light guide member includes a first portion, a second portion, and a connecting portion for connecting the first portion and the second portion. The first portion includes a light incidence surface facing the light source for entry of light emitted from the light source, and the light incidence surface is convexly curved widthwise of the light guide member. The second portion includes a light exit surface oriented toward the image read line for emitting light toward the image read line. The connecting portion is narrower than the first portion and the second portion.

Abstract translation: 图像读取装置包括光源，用于将从光源发射的光引导到图像读取线的细长导光部件和用于接收在图像读取线反​​射的光的多个光接收元件。 导光构件包括第一部分，第二部分和用于连接第一部分和第二部分的连接部分。 第一部分包括面对光源的入射表面，用于进入从光源发射的光，并且光入射表面在导光构件的宽度方向上凸起地弯曲。 第二部分包括朝向图像读取线的朝向图像读取线发光的光出射面。 连接部分比第一部分和第二部分窄。

公开(公告)号：US06229137B1

公开(公告)日：2001-05-08

申请号：US09152966

申请日：1998-09-14

Applicant: David D. Bohn

Inventor： David D. Bohn

IPC: F21V704

CPC classification number: H04N1/0285 ,  H04N1/02815 ,  H04N1/0286 ,  H04N1/02865 ,  H04N1/0318 ,  H04N2201/03112 ,  H04N2201/03116 ,  H04N2201/03141 ,  H04N2201/03145

Abstract: An illumination system for illuminating a scan region on an object may comprise a hollow reflector having an interior reflective surface, an entrance aperture, and an exit aperture. A light source is positioned adjacent the entrance aperture of the hollow reflector so that some of the light rays produced by the light source pass through the entrance aperture and are reflected by the interior reflective surface of the hollow reflector before passing through the exit aperture.

Abstract translation: 用于照射物体上的扫描区域的照明系统可以包括具有内部反射表面，入射孔和出口孔的中空反射器。 光源位于中空反射器的入口孔附近，使得由光源产生的一些光线穿过入口孔并在通过出射孔之前被中空反射器的内部反射表面反射。