| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve satisfactory antireflection peformance, with respect to an optical element using optical anisotropy. <P>SOLUTION: The optical element includes an optical anisotropic medium 011. A difference between the minimum refractive index n<SB>l</SB>and the maximum refractive index n<SB>h</SB>at a use central wavelength of the optical anisotropic medium is ≥0.1, and a refractive index n<SB>t1</SB>at the use central wavelength of a first medium 013 optically adjoining the optical anisotropic medium satisfies the following condition: (n<SB>t1</SB>-n<SB>l</SB>)×(n<SB>t1</SB>-n<SB>h</SB>)≤0. <P>COPYRIGHT: (C)2010,JPO&INPIT |
