Method of forming an optical grating

Details Method of forming an optical grating Method of forming an optical grating

1975-11-17

1977-07-12

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Providing transitory integral holding or handling portion

29445, 29522, 29525, 350320, B23P 1700

Patent

active

040344606

ABSTRACT:
An optical grating having expansion characteristics equivalent to the thermal expansion characteristics of a preselected material is formed by providing a thin grating sheet of a material different from the preselected material, forming spaced slits in the sheet to overly an opening in an underlying plate of such preselected material, thereafter securing the sheet to the plate along narrow zones outside the opening, and finally removing the portions of the sheet lying outside such zones.

REFERENCES:
patent: 2704882 (1955-03-01), Olson
patent: 2994950 (1961-08-01), Siegler
patent: 3167856 (1965-02-01), Zoller
patent: 3720930 (1973-03-01), Elsing
patent: 3871064 (1975-03-01), Schrader
patent: 3872575 (1975-03-01), Lee

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