Prismatic device for use with process refractometers

Details Prismatic device for use with process refractometers Prismatic device for use with process refractometers

1992-09-03

1994-05-03

Henry, Jon W.

Optical: systems and elements

Prism

359837, 356136, G02B 504, G01N 2141

Patent

active

053092880

ABSTRACT:
A prism providing an optical window for a process refractometer. The prism is manufactured from a material that has predetermined optical properties and a refractory index higher than the refractory index of the process material to be measured. One face of the prism is arranged to provide an interface in contact with the process material to be measured. To optimise the selection of the material of the prism, an optically transparent material layer is provided onto the surface of the interface in contact with the process material, the refractory index of the material layer being higher than the refractory index of the material that the prism is manufactured from.

REFERENCES:
patent: 2815695 (1957-12-01), Scharf et al.
patent: 3883214 (1975-03-01), Hoffman
patent: 3883221 (1975-05-01), Rigrod
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patent: 4451147 (1984-05-01), Dobes et al.
patent: 4485405 (1984-11-01), Bailey
patent: 4634223 (1907-01-01), Ishii
patent: 4699516 (1987-10-01), Bartz et al.
patent: 4860182 (1989-08-01), Vadseth
patent: 4910403 (1990-03-01), Kilham et al.
patent: 5018835 (1991-05-01), Dorschner

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