发明申请
- 专利标题: Image display apparatus
- 专利标题(中): 图像显示装置
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申请号: US10922402申请日: 2004-08-19
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公开(公告)号: US20050041165A1公开(公告)日: 2005-02-24
- 发明人: Masayuki Abe , Atsushi Okuyama
- 申请人: Masayuki Abe , Atsushi Okuyama
- 优先权: JP2003-208413 20030822
- 主分类号: G02F1/13
- IPC分类号: G02F1/13 ; G02B27/14 ; G02B27/28 ; G02F1/1335 ; G03B21/00
摘要:
An image display apparatus is disclosed which is capable of obtaining a projected image having high contrast. The image display apparatus includes a luminous flux dividing system dividing light from a light source into a plurality of luminous fluxes and a condensing optical system leading the luminous fluxes emerged from the luminous flux dividing system to a reflective liquid crystal display element. The condensing optical system includes a condenser lens, a field lens making light from the condenser lens substantially telecentric, a polarization beam splitter, and a ¼ phase plate disposed between the polarization beam splitter and the liquid crystal display element. In addition, the phase difference φ that the ¼ phase plate gives to the ray made incident into the ¼ phase plate at an angle θ satisfies: π/2×0.8
公开/授权文献
- US07196743B2 Image display apparatus having particular phase difference 公开/授权日:2007-03-27
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