Optical system for projecting a line of illumination from an array of lasers
OwnerStephen Saganinventor
Life of this patent
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Abstract
An optical system is disclosed for projecting a line of laser illumination. The optical system includes a plurality of laser diodes arranged in a linear array, a first anamorphic lens structure that at least substantially collimates a fast axis of illumination from the plurality of laser diodes, a second anamorphic lens structure that scales the fast axis illumination from the first anamorphic lens structure.
Claims23
An optical system for projecting a line of laser illumination, said optical system comprising:
- a plurality of laser diodes arranged in a linear array;
- a first anamorphic lens structure that at least substantially collimates a fast axis of illumination from the plurality of laser diodes;
- a second anamorphic lens structure that scales the fast axis illumination from the first anamorphic lens structure;
- a slow axis diffuser that diffuses illumination from the laser diodes along a slow axis direction;
- and
- a rotationally symmetric macro lens group that receives the diffused illumination and provides the line of illumination at a light modulator.
An optical system for projecting a line of laser illumination, said optical system comprising:
- a plurality of laser diodes arranged in a linear array;
- a first anamorphic lens structure that collimates a fast axis of illumination from the plurality of laser diodes;
- a second anamorphic lens structure that scales the fast axis illumination from the first anamorphic lens structure;
- and
- a rotationally symmetric macro lens group that receives the scaled illumination and provides the line of illumination at a light modulator
An optical system for projecting a line of laser illumination, said optical system comprising:
- a plurality of laser diodes arranged in a linear array;
- a first anamorphic lens structure that collimates a fast axis of illumination from the plurality of laser diodes;
- a waveplate that rotates the polarization of illumination from the first anamorphic lens structure;
- a second anamorphic lens structure that scales the fast axis illumination from the waveplate;
- a slow axis diffuser that diffuses illumination from the second anamorphic lens structure;
- and
- a rotationally symmetric macro lens group that receives the diffused illumination and provides the line of illumination at a light modulator.
Dependencies are inferred from the claim text.