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

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. 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.