Patent ID: 8086081
Filing Date: 2011-12-27
Classification: G01N,G02B

Abstract:
1. An optical subassembly for in- and/or out-coupling of electromagnetic radiation of a predetermined wavelength range, especially IR-radiation, into, and/or out of, a pressure-tight housing, comprising: at least one housing wall section of the pressure-tight housing, said at least one housing wall section has at least one opening; and mechanical setting means in said at least one opening for setting a transparent plug for the electromagnetic radiation, said transparent plug includes two oppositely lying, base surfaces and a cylindrical lateral surface, and said mechanical setting means includes at least one setting ring, wherein: a volume region between at least a first section of said setting ring and at least a section of said cylindrical lateral surface is filled with a pressure-tight potting compound; said setting ring includes a second section, which is connected in such a manner with a ferule for accommodating at least one optical fiber, that radiation leaving the optical fiber falls on a base surface of said transparent plug facing the optical fiber; said at least one housing wall section forms a wall of a second housing adjoining the pressure-tight housing, and the second housing encloses at least said second section of said setting ring with said ferrule and at least a section of the optical fiber secured in said ferrule; said second housing tapers with increasing distance from said housing wall section of the pressure-tight housing and possesses at its end opposite said housing wall section a seat for a sensor tube.