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US 5,703,366 AGranted
Optical sensing with crystal assembly sensing tip
AssigneeASI Applied Systems, L.L.C.
InventorsDonald W. Sting, Milan Milosevic
Life of this patent
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AssigneeASI Applied Systems, L.L.C.
InventorsDonald W. Sting, Milan Milosevic
Estimating the term…
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.
An optical analytical system having a source of infrared energy, an infrared detector system, and a crystal assembly comprising a first crystal member having at least one circumferential focusing surface, and a crystal disc,
An optical analytical system having a source of infrared energy, an infrared detector system, and a crystal assembly comprising a first crystal member having at least one circumferential focusing surface, and a crystal disc, said crystal assembly further comprising a first rolled sheet of silver chloride that acts as an energy waveguide to said first crystal member and a second rolled sheet of silver chloride that acts as an energy waveguide from said first crystal member,
Apparatus for optical analyzation of a sample with infrared energy, comprising a source of infrared energy, a detector and a crystal body having a circumferential focusing surface and one or more sample contacting surfaces wherein at least one of said sample contacting surfaces is curved to focus infrared energy focused by a first portion of the circumferential focusing surface back upon a second portion of said circumferential focusing surface so that infrared energy passing into and out of said crystal body is directed to and from diametrically opposed positions on said first and second portions of the circumferential focusing surface and the infrared energy is encoded with sample specific information at the sample contacting surface to permit analyzation of the sample at the detector.
A crystal assembly in an optical system to analyze a sample with infrared energy comprising:
A crystal assembly for a radiant energy analytical system, comprising:
A crystal assembly in an optical system to analyze a sample with energy comprising:
A crystal for optical analyzation of a sample comprising at least one crystal body having a sample contacting surface and at least one circumferential curved focusing surface adapted to direct infrared energy to said sample contacting surface, said sample contacting surface being curved to redirect said infrared energy back upon a circumferential curved focusing surface so that infrared energy passing into and out of said crystal body is directed in substantially opposite directions to and from diametrically opposed positions on said circumferential curved focusing surface or surfaces.
An optical analytical system having a source of infrared energy, an infrared detector system, and an optical assembly comprising a first crystal member, one or more circumferential focusing surfaces, and a crystal disc,
Dependencies are inferred from the claim text.