Detector i.e. two dimensional grid spectrometer, for determining human eye cornea thickness for e.g. operation planning, has lens, where detector is supplied with light for registration of distributions associated to discrete point

摘要

#CMT# #/CMT# The detector (8) has a projection lens (13) and a two-dimensional light sensor (14), where the detector is supplied with light backscattered from a sample for simultaneous, two-dimensional spatially resolving registration of multiple spectrum resolved intensity distributions of the light. The sample is positioned in an optical coherent tomography (OCT)-arrangement. Each intensity distribution is associated to a discrete point at a sample surface. The lens is provided with a microlens arrangement (15) and a dispersive optical element (16) i.e. computer generated hologram. #CMT# : #/CMT# Independent claims are also included for the following: (1) a measuring device for determining a thickness of a sample at multiple discrete points (2) a method for determining a thickness of a sample at multiple discrete points. #CMT#USE : #/CMT# Detector i.e. two dimensional grid spectrometer, for use in a measuring device for determining a thickness of a sample i.e. cornea, of a human eye (all claimed), for operation planning, for diagnosis of degradation processes due to systemic base diseases and for obtaining a model for description of the cornea. Can also be used for determining a thickness of a paint layer and plastic. #CMT#ADVANTAGE : #/CMT# The detector determines the thickness of the sample in simple manner without the need for isotropic resolution for obtaining diagnostic statements. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a detector. 8 : Detector 13 : Projection lens 14 : Two-dimensional light sensor 15 : Microlens arrangement 16 : Dispersive optical element 17 : Diaphragm.