Apparatus for the examination of the properties of optical surfaces
AssigneeBYK Gardner GmbH
InventorsUwe Sperling, Konrad Lex
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Abstract
A device for examining the optical properties of surfaces includes a first radiation source which emits radiation to an examination surface, at least one first detector device, for detecting the radiation reflected off the surface and emitting at least one signal that is characteristic of at least one parameter of the detected radiation, wherein the detector device includes a plurality of image capturing components arranged in a specified detection area and wherein a control is provided for compensating signal changes caused by a shift of the location where the reflected radiation is incident on the detection area.
Claims35
A device for examining the optical properties of surfaces comprising:
- a first radiation means which emits radiation to an examination surface, at least one first detector means, for detecting the radiation reflected off said surface and emitting at least one signal that is characteristic of at least one parameter of the detected radiation, detector means including a plurality of image capturing components arranged in a specified detection area and wherein control means are provided for compensating at least a portion of signal changes caused by a shift of the location where the reflected radiation is incident on the detection area.
A method for examining the properties of optical surfaces including the method steps:
- emitting radiation by at least one first radiation means at a predetermined angle to an examination surface;
- detecting the radiation reflected off the surface by means of a first detector means wherein the detector means comprises a plurality of image capturing components arranged in a specified detection area;
- and
- outputting a signal which is characteristic of at least one radiation parameter wherein a change of the signal caused by a shift of the location on which the reflected radiation is incident on the detection area, is compensated at least in part.
Dependencies are inferred from the claim text.