Optical: systems and elements – Diffraction – From grating
Patent
1994-03-10
1995-10-10
Lerner, Martin
Optical: systems and elements
Diffraction
From grating
359127, 359130, 359572, 359576, G02B 518, G02B 2744, H04J 1408
Patent
active
054575737
ABSTRACT:
According to the present invention, a diffraction element comprising a transparent substrate having a first face and a second face; periodic grooves engraved on the first face; a reflective film provided on the first face having the periodic grooves; and a antireflection film provided on the second face, wherein the periodic grooves and the reflective film constitute a diffraction grating.
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R. Petit, Electromagnetic Theory of Gratings, Springer-Verlag Berlin Heidelberg, Chapter 6, p. 164 (1980).
Asakura Hiroyuki
Iida Masanori
Lerner Martin
Matsushita Electric - Industrial Co., Ltd.
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