US 11,892,346 B2
Optical system and method of manufacturing the same
Hsin-Ying Ho, Kaohsiung (TW); and Ying-Chung Chen, Kaohsiung (TW)
Assigned to ADVANCED SEMICONDUCTOR ENGINEERING, INC., Kaohsiung (TW)
Filed by Advanced Semiconductor Engineering, Inc., Kaohsiung (TW)
Filed on Mar. 29, 2022, as Appl. No. 17/707,802.
Application 17/707,802 is a continuation of application No. 16/405,838, filed on May 7, 2019, granted, now 11,287,312.
Claims priority of provisional application 62/669,320, filed on May 9, 2018.
Prior Publication US 2022/0221332 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01J 1/02 (2006.01)
CPC G01J 1/0209 (2013.01) [G01J 1/0214 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An optical system, comprising:
a light emitter disposed on a carrier;
a light receiver disposed on the carrier;
a block structure configured to mitigate a crosstalk between the light emitter and the light receiver; and
an encapsulant disposed on the carrier, the light emitter and the light receiver, wherein a portion of the block structure is exposed from the encapsulant and below the encapsulant.