Extremely broadband and wide‐angle retardation films |
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| Authors: | H S Kwok X J Yu |
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| Affiliation: | The Hong Kong University of Science and Technology (HUST), Department of Electrical & Electronic Engineering, Rm. 2534, Clear Water Bay, Kowloon, Hong Kong. |
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| Abstract: | Abstract— The design and construction of retardation films with any desired dispersion properties is reported. The method is simple and requires only conventional uniaxial retardation films. As an example, the design of retardation films which have constant retardation over the entire visible spectrum is demonstrated. The design methodology will be given. Specific design examples for broadband achromatic quarter‐wave and half‐wave retardation films are disclosed. These films show almost no wavelength dependence even at large viewing angles. |
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| Keywords: | Retardation film dispersion viewing angles |
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