Patent ID: 7819590

Claim:
A pressure sensor, comprising: an optical wavelength for pressure acquisition by means of influencing an assigned evanescence field and having an end face; at least one optoelectronic module; and at least one ferrule assigned to said optoelectronic module, said ferrule containing: a lower part; an upper part corresponding to and attached to said lower part, said upper part and said said lower part each having a recess formed therein substantially in a shape of a half shell such that in an assembled state a guide tube is formed for holding said optical waveguide in a fashion enclosing said end face; and a number of geometric structures for locally fixing said optical waveguide are respectively disposed in said recesses, said recesses having inner surfaces respectively configured to at least partially reflect light provided for said optical waveguide, said geometric structures being one of semiannular webs to constrict a cross section of said recesses and knobs and in a reflecting fashion.