| 摘要 |
PROBLEM TO BE SOLVED: To provide a polarizer capable of extension of a wavelength band in which polarization operation is permitted, improvement of extinction ratio and simplification of manufacturing process and also capable of reduction of manufacturing time and cost reduction. SOLUTION: The polarizer is constituted by stacking a plurality of polarizing films of a fringe structure composed of conductive bodies and light transmitting dielectric bodies on a light transmitting substrate surface. Widths of the conductive bodies of all polarizing films are set to be equal to one another, and respective conductive bodies are arranged in parallel such that the interval of parallel arrangement of the respective conductive bodies becomes equal to that in all of the polarizing films. Further, when viewing from the light incident direction, the respective conductive bodies extended to respective polarizing films are arranged in a regular interval to each other by using the interval defined by the ratio of (interval between conductive bodies in the polarizing film per one layer/the number of stacked polarizing films). COPYRIGHT: (C)2007,JPO&INPIT
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