US 12,268,480 B2
Multiuse optical sensor
Shrenik Deliwala, Andover, MA (US)
Assigned to ANALOG DEVICES, INC., Wilmington, MA (US)
Filed by Analog Devices, Inc., Wilmington, MA (US)
Filed on Feb. 16, 2021, as Appl. No. 17/176,396.
Application 15/058,932 is a division of application No. 12/783,673, filed on May 20, 2010, granted, now 9,304,202.
Application 17/176,396 is a continuation of application No. 15/058,932, filed on Mar. 2, 2016, abandoned.
Claims priority of provisional application 61/264,919, filed on Nov. 30, 2009.
Claims priority of provisional application 61/181,538, filed on May 27, 2009.
Prior Publication US 2021/0275045 A1, Sep. 9, 2021
Int. Cl. G01B 11/14 (2006.01); A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/022 (2006.01); A61B 5/1455 (2006.01); G01S 3/783 (2006.01); G01S 5/16 (2006.01); G01S 17/06 (2006.01); G01S 17/87 (2020.01); A61B 5/024 (2006.01)
CPC A61B 5/02108 (2013.01) [A61B 5/022 (2013.01); A61B 5/14551 (2013.01); A61B 5/486 (2013.01); A61B 5/684 (2013.01); A61B 5/721 (2013.01); G01S 3/783 (2013.01); G01S 5/16 (2013.01); G01S 17/06 (2013.01); G01S 17/87 (2013.01); A61B 5/02427 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An optical device for determining a position of an object, comprising:
a photosensitive plane having a first and second side, the first and second side opposing each other;
a first light source configured to illuminate the object;
a lens disposed between the photosensitive plane and the object configured to focus light reflected off of the object toward the photosensitive plane;
a first current detector in electrical communication with the first side of the photosensitive plane;
a second current detector in electrical communication with the second side of the photosensitive plane;
a circuit configured to calculate a first position of the object in a first direction based at least on measured currents from the first and second current detectors; and
a graphical user interface (GUI) for displaying feedback comprising position measurement information based on the first position of the object in the first direction to indicate a repositioning of the object to an optimal location for measurement, wherein the position measurement information comprises an indication provided on the GUI to adjust a pressure applied by the object on a transparent barrier between the object and the first light source.