Patent ID: 8045163
Filing Date: 2011-10-25
Classification: G01J,G02B,H01L,H04N

Abstract:
1. A method for manufacturing an apparatus with a polarization sensitive filter of given size and orientation, wherein parallel, thin, elongated grating structures close to one another are produced using lithographic methods, thinner than the wavelength to be measured and with a spacing smaller than the wavelength to be measured, using a plurality of manufacturing planes or metallization planes, having defined the geometric structure and orientation already during the design of mask data, restricting to the feature sizes and manufacturing steps allowed for the design of integrated circuits, wherein the polarization sensitive filter includes at least one sensor element that is adapted to cooperate with a polarization sensor of which the plane of polarization is aligned at a predetermined angle relative to a fixed reference axis of the sensor element, and wherein the fixed reference axis is noticeable by a marking on a housing containing the polarization sensitive filter.