Image display device and adjustment for alignment

  • US 6,631,994 B2
  • Filed: 05/10/2001
  • Issued: 10/14/2003
  • Est. Priority Date: 05/10/2000
  • Status: Active Grant
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First Claim
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1. An image display device comprising:

  • an optical imaging arrangement for providing image information to illumination light and for transmitting said light as an optical image signal;

    a display for receiving said optical image signal and for displaying an image based on said image information; and

    a projecting optical arrangement including a reflecting part for reflecting said optical image signal, said reflecting part having a surface shaped to cause a pincushion distortion of light incident thereon, and a refracting optical part for projecting said optical image signal onto said reflecting part, said refracting optical part having a surface shaped to cause a barrel distortion of light incident thereon, so as to pre-correct for said pincushion distortion of said reflecting part;

    wherein said display receives said optical image signal through said projecting optical arrangement.

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