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Projector comprising an expanding and contracting member configured to move a holding device when a temperature is changed

  • US 8,879,007 B2
  • Filed: 07/22/2013
  • Issued: 11/04/2014
  • Est. Priority Date: 04/21/2009
  • Status: Active Grant
First Claim
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1. A projector comprising:

  • a light source,a display device which modulates illumination light from the light source;

    a projection lens which projects modulation light modulated by the display device;

    a holding device which has a holder member supporting the display device;

    a frame member supporting the projection lens; and

    an expanding and contracting member being configured to move the holding device, which the direction of the motion of the display device is the same as the direction of the motion of the back focus position of the projection lens when the temperature is changed.

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