Member for infrared ray transmission

Details Member for infrared ray transmission Member for infrared ray transmission

1985-11-20

1988-03-15

Sikes, William L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

350 11, 350 9630, 501 37, 501 42, 501904, 252587, G02B 600, C03C 1304, F21V 904

Patent

active

047308966

ABSTRACT:
A member capable of transmitting infrared rays of 2 .mu.m or longer in wavelength, particularly of 10.6 .mu.m in wavelength, with a slight loss is provided. The member comprises a Ge-Se-Te ternary chalcogenide glass having a composition which, in a compositional diagram of the ternary chalcogenide glass falls within the region bounded by the respective straight lines connecting points A, B, C, D, and E and A in this order, which points A, B, C, D, and E indicate Ge:Se:Te molar proportions of 32:25:43, 20:6:74, 15:5:80, 15:10:75, and 22:31:47, respectively.

REFERENCES:
patent: 4154503 (1979-05-01), Lettington et al.
patent: 4188089 (1980-02-01), Gliemeroth et al.
patent: 4612294 (1986-09-01), Katsuyama et al.

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