OPTICAL DISTANCE SENSING USING A TARGET SURFACE HAVING A NON-UNIFORM DESIGN OF REGIONS OF DIFFERENT REFLECTIVITY

• Main Authors: Nevou, Laurent, Geiger, Jens
• Format: Patent
• Language: English
• Published: 03.02.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC DIGITAL DATA PROCESSING; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

An apparatus, e.g. a proximity sensor module (10), for optical distance sensing includes a target surface (25) having a non-uniform design including a high-reflectivity region and a low-reflectivity region for light of a particular wavelength. The position of the target surface (25) is displaceable...