US 11,914,072 B2
Proximity sensor including enclosed accommodation space with sealed light passage which forms an integrated piece having completely flat outer surface
Nientse Chen, Hsin-Chu (TW)
Assigned to PixArt Imaging Incorporation, Hsin-Chu (TW)
Filed by PixArt Imaging Incorporation, Hsin-Chu (TW)
Filed on Jun. 17, 2022, as Appl. No. 17/842,838.
Application 16/247,503 is a division of application No. 15/226,599, filed on Aug. 2, 2016, granted, now 10,222,457, issued on Mar. 5, 2019.
Application 17/842,838 is a continuation of application No. 17/188,610, filed on Mar. 1, 2021, granted, now 11,397,243.
Application 17/188,610 is a continuation of application No. 16/829,261, filed on Mar. 25, 2020, granted, now 10,969,472, issued on Apr. 6, 2021.
Application 16/829,261 is a continuation of application No. 16/247,503, filed on Jan. 14, 2019, granted, now 10,634,768, issued on Apr. 28, 2020.
Application 15/226,599 is a continuation of application No. 14/061,709, filed on Oct. 23, 2013, granted, now 9,435,886, issued on Sep. 6, 2016.
Claims priority of application No. 101142329 (TW), filed on Nov. 14, 2012.
Prior Publication US 2022/0317257 A1, Oct. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 17/04 (2020.01); G01S 7/481 (2006.01)
CPC G01S 7/4813 (2013.01) [G01S 7/4811 (2013.01); G01S 17/04 (2020.01); H01L 2224/48091 (2013.01); H01L 2924/16153 (2013.01); Y10T 29/49016 (2015.01)] 5 Claims
OG exemplary drawing
 
1. An optical sensor, comprising:
a transmitter unit, for transmitting a light signal;
a receiver unit, for receiving the light signal reflected by an object to determine a status of the object; and
a housing having a first portion which defines an enclosed transmitter accommodation space for accommodating the transmitter unit and a second portion which defines an enclosed receiver accommodation space for accommodating the receiver unit, wherein the first portion of the housing defining the enclosed transmitter accommodation space includes a sealed first light passage for the light signal transmitted from the transmitter unit to pass through, and the second portion of the housing defining the enclosed receiver accommodation space includes a sealed second light passage for the light signal reflected by the object to pass through, wherein the housing and the sealed first and second light passages forming an integrated piece having a completely flat outer surface.