COUPLED MULTI-WAVELENGTH CONFOCAL SYSTEMS FOR DISTANCE MEASUREMENTS
First Claim
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1. A distance measurement method comprising:
- imaging a first light source emitting a first wavelength, on a region of a substrate with a dispersive confocal lens;
imaging a second light source emitting a second wavelength with the dispersive confocal lens on the region of the substrate;
measuring intensity of light reflection emitted from the first light source;
measuring intensity of light reflection emitted from the second light source; and
generating a first response function wherein the first response function represents reflected light intensity emitted from the first light source as a function of the distance.
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Abstract
A distance measurement method includes imaging a first light source emitting a first wavelength, on a region of a substrate with a dispersive confocal lens; imaging a second light source emitting a second wavelength with the dispersive confocal lens on the region of the substrate; measuring intensity of light reflection emitted from the first light source; measuring intensity of light reflection emitted from the second light source; and generating a first response function wherein the first response function represents reflected light intensity emitted from the first light source as a function of the distance.
23 Citations
1 Claim
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1. A distance measurement method comprising:
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imaging a first light source emitting a first wavelength, on a region of a substrate with a dispersive confocal lens; imaging a second light source emitting a second wavelength with the dispersive confocal lens on the region of the substrate; measuring intensity of light reflection emitted from the first light source; measuring intensity of light reflection emitted from the second light source; and generating a first response function wherein the first response function represents reflected light intensity emitted from the first light source as a function of the distance.
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Specification
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Current AssigneeEastman Kodak Company
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Original AssigneeEastman Kodak Company
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InventorsEyal, Ophir
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Application NumberUS13/156,574Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current356/4.06CPC Class CodesG01C 3/08 Use of electric radiation d...
