US 8,465,155 B2 · Line illumination apparatus using laser arrays

Abstract

A method for forming, onto a linear array light modulator, a line of illumination that extends in a linear direction, the method includes forming a first linear beam array and a second linear beam array, both linear beam arrays comprising a plurality of laser beams; forming a mixed illumination by aligning the first linear beam array and the second linear beam array in the linear direction and directing the first and second linear beam arrays along a propagation path; magnifying the mixed illumination from the propagation path in the linear direction and relaying the magnified mixed illumination toward the linear array light modulator; and focusing the mixed illumination in the cross-array direction that is orthogonal to the linear direction onto the linear array light modulator.

Claims5

Dependent claims

A method for forming, onto a linear array light modulator, a line of illumination that extends in a linear direction, the method comprising:

a) forming a first linear beam array in a first plane and a second linear beam array in a second plane offset from the first plane and parallel to the first plane, both linear beam arrays comprising a plurality of laser beams;
b) aligning the first linear beam array and the second linear beam array into a single multi-beam line in the linear direction and directing the first and second linear beam arrays along a propagation path;
c) magnifying the single multi-beam line illumination from the propagation path in the linear direction and relaying the magnified single multi-beam line illumination toward the linear array light modulator;
and
d) focusing the single multi-beam line illumination orthogonally to the linear direction onto the linear array light modulator.

2 more elements

Dependencies are inferred from the claim text.

Line illumination apparatus using laser arrays

Life of this patent

Line illumination apparatus using laser arrays

Life of this patent

Abstract

Claims5