System and method for projection
AssigneeVKB Inc.
InventorKlony Lieberman
Life of this patent
Estimating the term…
Abstract
A pattern projector including a source of light to be projected, a spatial light modulator arranged in a spatial light modulator plane, the spatial light modulator receiving the light from the source of light and being configured to pass the light therethrough in a first pattern and projection optics receiving the light from the spatial light modulator and being operative to project a desired second pattern onto a projection surface lying in a projection surface plane which is angled with respect to the spatial light modulator plane, the first pattern being a distortion of the desired second pattern configured such that keystone distortions resulting from the difference in angular orientations of the spatial light modulator plane and the projection surface plane are compensated.
Claims17
A pattern projector comprising:
- a source of light to be projected;
- a spatial light modulator arranged in a spatial light modulator plane, said spatial light modulator receiving said light from said source of light and being configured to pass said light therethrough in a first pattern;
- and
- projection optics receiving said light from said spatial light modulator and being operative to project a desired second pattern onto a projection surface lying in a projection surface plane which is angled with respect to said spatial light modulator plane,
- said first pattern being a distortion of said desired second pattern configured such that keystone distortions resulting from the difference in angular orientations of said spatial light modulator plane and said projection surface plane are compensated.
A method for projecting a pattern comprising:
- providing a source of light to be projected;
- arranging a spatial light modulator, in a spatial light modulator plane, to receive said light from said source of light, said spatial light modulator being configured to pass said light therethrough in a first pattern;
- and
- using projection optics for receiving said light from said spatial light modulator and for projecting a desired second pattern onto a projection surface lying in a projection surface plane which is angled with respect to said spatial light modulator plane,
- said first pattern being a distortion of said desired second pattern configured such that keystone distortions resulting from the difference in angular orientations of said spatial light modulator plane and said projection surface plane are compensated.
Dependencies are inferred from the claim text.