Optical sensing with crystal assembly sensing tip

Details Optical sensing with crystal assembly sensing tip Optical sensing with crystal assembly sensing tip

1996-08-30

1997-12-30

Wong, Don

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503418, 25033911, G01N 2100

Patent

active

057033668

ABSTRACT:
A crystal assembly for optical analyzation of samples includes a first crystal member and a second crystal member, the latter of which is preferably a diamond. The first and second crystal members, which have substantially the same index of refraction for infrared energy, are coupled together at an optically transmitting interface. This interface may be formed by crystal surfaces in intimate contact with one another or by a third crystal member positioned therebetween. The first crystal member has at least one circumferential sidewall focusing surface for redirecting infrared energy within the first crystal member to and from a focal ring or focal plane at or near the optical interface. The focused infrared energy transmitted from the first crystal member is internally reflected within the second crystal member to obtain encoding specific to a sample in contact with a surface of the second crystal member. The encoded infrared energy is then reflected back into the first crystal member for ultimate transmission to a detector.

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Advertisement--A New FTIR Sampling Capability. The Dipper-210 Universal Immersion Sampling System. . . Your first choice for quick and accurate FTIR analysis of liquids, postes, mulls, and even powders. Axiom Analytical Incorporated.
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