Optical: systems and elements – Diffraction – From grating
Patent
1991-04-24
1994-01-18
Arnold, Bruce Y.
Optical: systems and elements
Diffraction
From grating
359570, 359571, 359574, 359576, 358 55, G02B 518, G02B 2746
Patent
active
052803880
ABSTRACT:
A phase grating optical low-pass filter having wavelength selectivity consisting of a plurality of layers which are the same in refractive index at a certain wavelength and different from one another in refractive index dispersion, and has a configuration for generating a phase difference at a boundary of the layers.
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Okayama Hiroaki
Ono Syusuke
Arnold Bruce Y.
Matsushita Electric - Industrial Co., Ltd.
Shafer R. D.
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