Volume display optical system and method
AssigneeTexas Instruments Incorporated
InventorDouglas W. Anderson
Life of this patent
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Abstract
There is disclosed a method and system for controlling the optics of a coherent light source impacting a three dimensional defined volume. The system uses a scanner to time and spatially position the coherent light. The divergent light beam output of the scanner is then placed through positive and negative lenses to narrow the beam waist while also increasing the divergence angle of the beam. Provision is made to abate the divergence angle so that the light, as it impacts the defined volume, will not continue to diverge, creating a skewed image within the volume.
Claims13
A system for projecting coherent light from a plurality of coherent light sources to provide a three-dimensional volume display comprising:
- (a) a plurality of coherent light beam sources, each of said sources providing a coherent light beam;
- (b) projector means converging the waist of each of said beams individually, combining the converged individual beams into a single beam, converging the waist of said single beam to provide a narrow combined beam waist and diverging the combined beam while maintaining said narrow combined beam waist;
- and
- (c) means responsive to said combined beam for providing said three-dimensional volume display.
Dependencies are inferred from the claim text.