| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a color image sensor hardly influenced by environment and capable of being manufactured by a simple and cheap process, a manufacture method thereof, and a color image detection method. <P>SOLUTION: The color image sensor has a plurality of pixels. On the pixels, zero-order diffractive color filters (DCFs) 1 are arranged. Different zero-order DCF1, for example, DCFs 1 transmitting red, green, and blue light, respectively, are allocated to the pixels of the color image sensor. The use of DCFs 1 for color imaging devices brings defined band-pass filters or notch filters better than the presently used lacquers. The DCFs 1 are more stable with respect to time, temperature, and any environmental aggression. The manufacture of the DCF pattern is simpler and cheaper than that of a conventional dye-filter pattern, since various types of DCFs can be manufactured simultaneously. <P>COPYRIGHT: (C)2007,JPO&INPIT |
