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US 12,222,197 B2Granted
Detector for determining a position of at least one object
AssigneeTrinamix GmbH
InventorsCelal Mohan Deguen, Bernd Scherwath, Robert Send, Ingmar Bruder
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Abstract
Described herein is a detector for determining a position of at least one object. The detector includes: at least one dichroic filter; at least one optical sensor; and at least one evaluation device. Also described herein are a method for determining a position of the at least one object and a method of using the detector.
Claims17
A detector (110) for determining a position of at least one object (112), the detector (110) comprising:
- at least one dichroic filter (130), wherein the dichroic filter (130) has a wavelength dependent and angle dependent transmission spectrum;
- at least one optical sensor (114), wherein the optical sensor (114) has at least one light-sensitive area (116), wherein the optical sensor (114) is designed to generate at least one sensor signal in response to an illumination of its light-sensitive area (116) by the light beam (120) having passed through the dichroic filter (130);
- at least one transfer device (126), wherein the at least one transfer device is adapted to guide the light beam onto the optical sensor;
- and
- at least one evaluation device (134) configured for determining a first sensor signal generated in response to illumination by the light beam (120) having at least one first wavelength and a second sensor signal generated in response to illumination by the light beam (120) having at least one second wavelength, wherein the evaluation device (134) is configured for determining at least one longitudinal coordinate z of the object by evaluating a combined signal Λ from the first and second sensor signals.
2 more elements
A method for determining a position of at least one object (112), the method comprising the following steps:
- providing at least one dichroic filter (130);
- providing at least one optical sensor (114), wherein the optical sensor (114) has at least one light-sensitive area (116), wherein the optical sensor (114) is designed to generate at least one sensor signal in response to an illumination of its light-sensitive area (116) by the light beam (120) having passed through the dichroic filter (130);
- illuminating the light-sensitive areas (116) of the optical sensor (114) with the light beam (120) having passed through the dichroic filter (130), wherein, thereby, the light-sensitive area (116) generates at least one sensor signal;
- determining a first sensor signal generated in response to illumination by the light beam (120) having at least one first wavelength and a second sensor signal generated in response to illumination by the light beam (120) having at least one second wavelength;
- and
- evaluating the first sensor signal and the second signal, thereby, determining at least one longitudinal coordinate z of the object, wherein the evaluating comprises deriving a combined signal Λ of the first and second signals.
3 more elements
Dependencies are inferred from the claim text.