发明授权
US06735001B2 Image display apparatus 失效
图像显示装置

  • 专利标题: Image display apparatus
  • 专利标题(中): 图像显示装置
  • 申请号: US09911427
    申请日: 2001-07-25
  • 公开(公告)号: US06735001B2
    公开(公告)日: 2004-05-11
  • 发明人: Fuminori Nakashima
  • 申请人: Fuminori Nakashima
  • 优先权: JP2000-227491 20000727; JP2001-169981 20010605
  • 主分类号: G02B532
  • IPC分类号: G02B532
Image display apparatus
摘要:
An image display apparatus comprises a hologram screen 2 formed by bonding a hologram element 20 to light-transmissible films 21 and an illumination device 11 for irradiating image light 10 onto the hologram screen and reproducing an image on the hologram screen 2. The light-transmissible film 21 positioned on the irradiation side of the image light 10 relative to the hologram element 20 has an angle deviation of not greater than 45 degrees between a direction of the light-transmissible film 21 that gives the highest thermal shrinkage ratio and an axial direction in the hologram screen 2. Therefore, the image display apparatus can provide high-quality images without the superposition of an interference pattern on the images on the hologram screen.
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