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METHOD FOR PRODUCING HOLOGRAM LENS, METHOD FOR PRODUCING HOLOGRAM COLOR FILTER, AND SPACE LIGHT MODULATING APPARATUSES USING THE HOLOGRAM LENS AND THE HOLOGRAM COLOR FILTER RESPECTIVELY
METHOD FOR PRODUCING HOLOGRAM LENS, METHOD FOR PRODUCING HOLOGRAM COLOR FILTER, AND SPACE LIGHT MODULATING APPARATUSES USING THE HOLOGRAM LENS AND THE HOLOGRAM COLOR FILTER RESPECTIVELY
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机译:全息透镜的制造方法,全息滤色器的制造方法以及分别使用全息透镜和全息滤色器的空间光调制装置
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摘要
A thickness of each hologram lens for forming a hologram color filter is set so as to be smaller as the wavelength of light to be diffracted by each hologram lens is shorter. A thin plate glass layer is bonded to a surface of the hologram color filter such that it is in a firm contact therewith by adhesive agent and a sum of the thickness of the thin plate glass layer and thickness of the adhesive agent is smaller than the shortest focal length of the focal lengths in glass of a plurality of the hologram lenses. As a result, light diffracted and divided by the hologram color filter is focused on a picture element electrode of a corresponding color properly thereby eliminating deterioration of color reproduction due to mixing of colors. Further, upon production of the hologram color filter from hologram recording material, an influence of a fringe rotation is compensated.
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