Reflection preventive film having an aspherical layer

Details Reflection preventive film having an aspherical layer Reflection preventive film having an aspherical layer

1979-01-19

1981-04-14

Smith, Alfred E.

G02B 110

Patent

active

042616450

ABSTRACT:
An aspherical reflection preventive coating composed of a first thin film group includes one or more layers of thin film having an equal thickness, an aspherical thin film disposed on the thin film group and having an aspherical shape at the side opposite to the substrate, and a second thin film group disposed on the aspherical thin film, and comprising one or more layers of thin film, the films being arranged in the order as mentioned above from the side of the substrate.

REFERENCES:
patent: 3185020 (1965-05-01), Thelen
Pacey, "Multilayer Antireflection Coatings for Optical Components," Manufacturing Optics International, vol. 22, No. 5, 11-69, p. 270.
Baumeister, "Summer Course in Modern Methods of Optical Design," vol. 7, Multilayer Filters, U. of Rochester, 1963, pp. 20-4, 20-5, 20-22.

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