Optical element with antireflection film

Details Optical element with antireflection film Optical element with antireflection film

2006-10-03

2006-10-03

Nguyen, Thong Q (Department: 2872)

Optical: systems and elements

Having significant infrared or ultraviolet property

Multilayer filter or multilayer reflector

C359S350000, C359S586000, C359S587000

Reexamination Certificate

active

07116473

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.

REFERENCES:
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patent: 5993898 (1999-11-01), Nagatsuka
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patent: 2001-74905 (2001-03-01), None
English translation of the Japanese reference No. 2001-74905.

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