US 12,235,391 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 Jan. 19, 2024, as Appl. No. 18/418,200.
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 18/418,200 is a continuation of application No. 17/842,838, filed on Jun. 17, 2022, granted, now 11,914,072.
Application 17/842,838 is a continuation of application No. 17/188,610, filed on Mar. 1, 2021, granted, now 11,397,243, issued on Jul. 26, 2022.
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 2024/0159873 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 7/481 (2006.01); G01S 17/04 (2020.01)
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)] 6 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 proximity status of the object;
a housing having receiver accommodation space for surrounding and accommodating the receiver unit; and
a sealed first light passage element made of a first light-transmissible material, and the sealed first light passage element is provided for the light signal reflected by the object to pass through,
wherein the receiver accommodation space of the housing is larger than the receiver unit so that there is empty space around the receiver unit,
wherein the housing has an opening and the sealed first light passage element is filled within the opening,
wherein a top surface of the sealed first light passage element is substantially parallel to a top surface of the housing.