Optical: systems and elements – Polarization without modulation – Polarization variation over surface of the medium
Patent
1995-12-21
1998-05-05
Dzierzynski, Paul M.
Optical: systems and elements
Polarization without modulation
Polarization variation over surface of the medium
359485, G02B 530
Patent
active
057483680
ABSTRACT:
A polarization optical element causes minimum loss and provides light in the visible and near-infrared regions with practically satisfactory polarization contrast even when the grid period is comparatively long. Metal grids 1 are formed on a substrate 2 with a refractive index n.sub.1 to satisfy conditions 0.2<h/d<0.9, 0.5<b/d<0.9, and 70.degree.<s<110.degree., where "h" is the thickness of a cross section of the grids; "b" is the width of the cross section, measured along a line passing 0.5 h away from, and in parallel with, the base of the cross section; "d" is the grid period; and "s" is the angle between the base and a leg of the cross section.
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Matsumoto Shuichi
Nishi Noriaki
Saito Kimihiro
Tamada Hitoshi
Dzierzynski Paul M.
Kananen Ronald P.
Schuberg Darren E.
Sony Corporation
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