Optical: systems and elements – Diffraction – From grating
Patent
1993-05-18
1996-11-12
Dzierzynski, Paul M.
Optical: systems and elements
Diffraction
From grating
359575, G02B 518
Patent
active
055745970
ABSTRACT:
A multi-beam generator has a grating that is provided on a substrate and which is composed of at least three rectangular patterns of unequal width each having only two phase levels. The generator has high efficiency of light utilization, produces multiple beams of uniform intensity from a single laser beam and can be fabricated by a simple process.
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Dzierzynski Paul M.
Hitachi Koki Co,. Ltd.
Jr. John Juba
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