The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2024
Filed:
Oct. 03, 2023
Applicant:
Pixieray Oy, Espoo, FI;
Inventors:
Assignee:
Pixieray Oy, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G01J 1/44 (2013.01); G02B 27/0093 (2013.01); G01J 2001/444 (2013.01);
Abstract
A calibration arrangement to calibrate a light intensity reading includes a first light emitter to emit light, a first light receiver to receive the emitted light and generate an output signal and a controller to provide a first control signal to the first light emitter to emit a first light pulse during a first period of time, measure a first output signal, provide a second control signal to the first light emitter to emit a second light pulse during a second period of time, measure a second output signal, calculate a second difference between the first output signal and the second output signal and use the calculated second difference to calibrate the light intensity reading.