Method of producing dielectric diffraction gratings or...

Details Method of producing dielectric diffraction gratings or... Method of producing dielectric diffraction gratings or...

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G01B 9/02 (2006.01) G01B 5/18 (2006.01) G01B 5/28 (2006.01) G01J 3/18 (2006.01) G02B 5/18 (2006.01) G02B 27/42 (2006.01) G02B 27/60 (2006.01)

Patent

CA 1111683

A B S T R A C T Dielectric diffraction gratings are made by making a preform of up to several hundred layers of glass of high refract- ive index and alternate layers of glass of low refractive index, the layers being fused to each other. The preform is then heated in a furnace and fed through drawing rollers after which it is cut into inches typically 0.5 mn thick.

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