Refractive index temperature sensor
Patent 4437761 Issued on March 20, 1984. Estimated Expiration Date: 
March 27, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 27, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3466565 Optical temperature probe Birefringent crystal thermometer Fiber optic temperature sensor using liquid component fiber Method and apparatus for a Fabry-Perot multiple beam fringe sensor Fiber optical measuring device with compensating properties Patent #: 4356396 InventorAssigneeApplicationNo. 06/248614 filed on 03/27/1981US Classes:356/44, With sample engaging rod or tube374/161Change of optical propertyExaminersPrimary: McGraw, Vincent P.Attorney, Agent or FirmInternational ClassesG01K 11/14 (20060101)G01K 11/00 (20060101) AbstractAn optical temperature sensor and method of manufacture therefor in which the intensity of light reflected from a first dielectric interface or from first and second dielectric interfaces, wherein one of the dielectrics has a temperature dependent index of refraction is measured. The intensity of light refleted from such dielectric interfaces will vary depending on the index of refraction which in turn is temperature dependent, thus providing a temperature dependent light signal.Other References
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