Non-birefringent thallium iodide thin films for surface protecti

Details Non-birefringent thallium iodide thin films for surface protecti Non-birefringent thallium iodide thin films for surface protecti

1978-10-19

1979-11-27

Hoffman, James R.

Coating processes

Coating has x-ray, ultraviolet, or infrared properties

427162, 427164, G02B 110, B05D 136

Patent

active

041762070

ABSTRACT:
A method of providing non-birefringent cubic thallium iodide thin films on potassium chloride optical elements. The method of this invention is to deposit thin film alternating layers of thallium iodide and a buffer material such that a composite coating is obtained. The optic buffer material may be lead fluoride. The thallium iodide film made by the method of this invention is highly transparent, insoluble and non-scattering.

REFERENCES:
patent: 3959548 (1976-05-01), Bernal
patent: 4009300 (1977-02-01), Chaffin
patent: 4110489 (1978-08-01), Chaffin et al.

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