| 摘要 |
PURPOSE: A photographing apparatus for the information read reduces the image processing time. In that way the use of the CPU(Central Processing Unit) of the slow processing speed is realized in the photographing apparatus for the information read. CONSTITUTION: An iris diaphragm(22a) restricts the light acceptance range of the light from the image object(25). The filter is arranged in the neighborhood of the opening of the iris diaphragm or opening. The filter has the transmittance different according to location. In order that the light-receiving surface of the image sensor(24), immediately, the immediately before or the inside becomes the imaging location of the lens(23), the distance of the image sensor and lens is adjusted. |
