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US 2025/0164408 A1Published application
Position feedback sensor using out-of-band wavelengths
OwnerFlorian Melsheimer, Lauren Wilson +2inventors
InventorsFlorian Melsheimer, Lauren Wilson, Alon Rosenthal, Matthew Hoffman
Life of this patent
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Abstract
An assembly is in a path of a beam of light, which has a first and second spectral components at different wavelengths. A first spectral component and a second spectral component of the beam of light are projected through an aperture. A sensor is disposed around the aperture to only receive a second spectral component of the beam of light. A position of the beam of light relative to the aperture can be determined using information from the sensor.
Claims18
A system comprising:
- an assembly in a path of a beam of light, wherein the assembly defines an aperture in the assembly, wherein a first spectral component and a second spectral component of the beam of light are projected through the aperture, and wherein the first spectral component and the second spectral component have different wavelengths;
- a sensor that defines four sensor sections disposed around the aperture, wherein the sensor is positioned to primarily receive a second spectral component of the beam of light;
- and
- a processor in electronic communication with the sensor, wherein the processor is configured to determine a position of the beam of light relative to the aperture using information from the sensor.
1 more element
A method comprising:
- directing a beam of light at an aperture of an assembly, wherein the beam of light includes a first spectral component and a second spectral component, and wherein at least the first spectral component is directed through the aperture, wherein the first spectral component and the second spectral component have different wavelengths;
- receiving primarily the second spectral component at a plurality of sensor sections;
- and
- determining, using a processor, a position of the beam of light relative to the aperture using information from the sensor sections.
1 more element
Dependencies are inferred from the claim text.