Antireflection film and optical element having the same

Details Antireflection film and optical element having the same Antireflection film and optical element having the same

2005-09-20

2005-09-20

Nguyen, Thong Q. (Department: 2872)

Optical: systems and elements

Having significant infrared or ultraviolet property

Multilayer filter or multilayer reflector

C359S586000, C359S588000

Reexamination Certificate

active

06947209

ABSTRACT:
An antireflection film includes alternately deposited high-refractive-index layers and low-refractive-index layers. The refractive indexes and extinction coefficients of the layers are such that the antireflection film exhibits sufficient antireflection characteristics even if the geometrical thickness thereof is small. An optical element having the antireflection film on a substrate exhibits high transmittance and has excellent optical characteristics.

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patent: 5993898 (1999-11-01), Nagatsuka
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patent: 2000-206304 (2000-07-01), None

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