Planar laser illumination module (PLIM) employing high-frequency modulation (HFM) of the laser drive currents and optical multplexing of the output laser beams
First Claim
1. A planar laser illumination module (PLIM) comprising:
- (i) a laser illumination source driven preferably by high frequency modulated (HFM) diode current drive circuitry,(ii) a beam collimating optics disposed beyond said laser illumination source,(ii) an optical beam multiplexer (OMUX) device disposed beyond said collimating optics, and(iv) a planarizing-type illumination lens array disposed beyond said OMUX device, and arranged for generating a plurality of substantially planar coherence-reduced laser illumination beams (PLIBs) that form a composite substantially planar laser illumination beam (PLIB) having substantially reduced spatial/temporal coherence.
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Accused Products
Abstract
A planar laser illumination module (PLIM) including: (i) a laser illumination source driven preferably by high frequency modulated (HFM) diode current drive circuitry; (ii) a beam collimating optics disposed beyond the laser illumination source; (ii) an optical beam multiplexer (OMUX) device disposed beyond the collimating optics; and (iv) a planarizing-type illumination lens array disposed beyond the OMUX device, and arranged for generating a plurality of substantially planar coherence-reduced laser illumination beams (PLIBs) that form a composite substantially planar laser illumination beam (PLIB) having substantially reduced spatial/temporal coherence.
101 Citations
6 Claims
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1. A planar laser illumination module (PLIM) comprising:
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(i) a laser illumination source driven preferably by high frequency modulated (HFM) diode current drive circuitry, (ii) a beam collimating optics disposed beyond said laser illumination source, (ii) an optical beam multiplexer (OMUX) device disposed beyond said collimating optics, and (iv) a planarizing-type illumination lens array disposed beyond said OMUX device, and arranged for generating a plurality of substantially planar coherence-reduced laser illumination beams (PLIBs) that form a composite substantially planar laser illumination beam (PLIB) having substantially reduced spatial/temporal coherence. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification