Projector having horizontal displacement sensors for correcting distortion

Projector having horizontal displacement sensors for correcting distortion

  • CN 1,885,147 A
  • Filed: 06/21/2006
  • Published: 12/27/2006
  • Est. Priority Date: 06/23/2005
  • Status: Active Application
First Claim
Patent Images

1. projector apparatus comprises:

  • Projector equipment is used to project image onto projection surface;

    At least two displacement transducers are used to detect the horizontal shift of described projector apparatus, the spaced-apart predetermined distance of described displacement transducer;

    Rotational angle calculator is used to use predetermined distance and horizontal shift to calculate the rotation angle of projector apparatus on surface level, and horizontal shift is detected by described displacement transducer;

    AndDistorton corrector is used to use rotation angle to come the distortion of correcting image, and image wherein calculates rotation angle by described rotational angle calculator by described projection, as the level correction angle.

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