Color picture reader

Abstract

Abstract PURPOSE:To attain the reading of a color picture with monochromic image sensor, by color-separating light from a white light source and irradiating sequentially each color light on a plane of an original. CONSTITUTION:A rod lens array 2 is arranged while opposing its end to a plane of the original 1 and an image sensor 3 is arranged at the other end of the array 2. Further, a rotary filter 7 is provided to surround the white light source 6. The cylindrical plane of the filter 7 is split into three in the circumferential direction and color filters 7a, 7b, 7c are arranged respectively at each split area. In turning the filter 7 with such a construction around the shaft center of the light source 6 in the arrow, the light from the light source 6 is separated for the color in time division sequentially as red, green and blue color attended with the turning of the filter 7, the light 8 separated for the color is irradiated on the plane of original 1. Thus, when the reflected light from the plane of original 1 is formed on a photosensitive segment 5 on the sensor 3, a reading output corresponding to the color picture is obtained.

Inventors

• 👤 Tamio Saito
• 👤 斎藤　民雄
• 👤 Kohei Suzuki
• 👤 公平 鈴木

Bibliographic Details