Dispersive rugate coatings

Details Dispersive rugate coatings Dispersive rugate coatings

1992-03-25

1994-03-08

Herner, Martin

Optical: systems and elements

Light interference

Produced by coating or lamina

359586, 359589, 359615, G02B 528

Patent

active

052935485

ABSTRACT:
An optical element (10) is provided with a coating so as to selectively pass spectral lines of interest. The element includes a substrate (14) having a first major surface and a second, opposite major surface. The element further includes a coating, preferably a rugate coating (12), formed upon at least one of the major surfaces. The rugate coating has a spatially varying index of refraction profile through a depth thereof. The profile is selected so as to provide the element with a prescribed dispersion characteristic that matches a dispersion characteristic of a source of the radiation signal.

REFERENCES:
patent: 4170416 (1979-10-01), Fencil
patent: 4536089 (1985-08-01), Siebert
patent: 4583822 (1986-04-01), Southwell
patent: 4666250 (1987-05-01), Southwell
patent: 4826267 (1989-05-01), Hall et al.
patent: 4952025 (1990-08-01), Gunning, III
patent: 4958892 (1990-09-01), Jannson et al.
patent: 5009485 (1991-04-01), Hall
patent: 5056099 (1991-10-01), Bradley

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