Two-wavelength antireflection film

Details Two-wavelength antireflection film Two-wavelength antireflection film

1994-09-01

1996-09-17

Dzierzynski, Paul M.

Optical: systems and elements

Light interference

Produced by coating or lamina

359580, 359588, 359589, G02B 110, G02B 528

Patent

active

055574661

ABSTRACT:
A two-wavelength antireflection film is constituted by a multi-layered film provided on a substrate so as to have antireflection characteristics for a wavelength .lambda..sub.1 and a wavelength .lambda..sub.2 different from the wavelength .lambda..sub.1. Each of the materials constituting the multi-layered film has a refractive index not exceeding 1.7 for a central wavelength .lambda..sub.0 which is defined by

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Thin-Film Optical Filters, H. A. Macleod, Macmillan Publishing Co., New York, p. 126 (1969).
Thin-Film Optical Filters, H. A. Macleod, American Elsevier Publishing Co., New York, pp. 126-129 (1969).

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