Diffraction grating and method of making

Details Diffraction grating and method of making Diffraction grating and method of making

1989-02-06

1992-01-14

Arnold, Bruce Y.

Optical: systems and elements

Diffraction

From grating

156625, 359569, 359900, G02B 518, C25F 302

Patent

active

050804650

ABSTRACT:
A diffraction grating, comprises a plurality of grooves formed by a plurality of first facets having a first set of propagative optical characteristics. All facets are generally positioned with a first orientation. A plurality of second facets have a second set of propagative optical characteristics and are generally positioned with a second orientation. The first facets are oriented to diffract light incident on them. The second facets are oriented and have propagative characteristics which prevent perturbation of the diffracted light.

REFERENCES:
patent: 3237508 (1966-03-01), Keller et al.
patent: 3942873 (1976-03-01), Shimotakahara
patent: 4647812 (1987-03-01), Vriens et al.
Palmer; "Anomalous Behavior of Gratings at Skew Incidence"; Applied Optics, vol. 7, No. 2; Feb. 1968; pp. 353-356.
Patent Abstracts of Japan, vol. 8, no. 171 (P-293) (1608) Aug. 8, 1984.
JP-A-59 065 810 (Hitachi Seisakisha K.K.) Apr. 14, 1984.
G. Schroder: "Technische Optik" edition 4, Vogel-Buchverlag, 1984, Wurzburg, DE chapter 2.8, pp. 57-58.

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