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:
Jan. 22, 2019
Filed:
Jun. 15, 2017
Smartsens Technology (U.s.), Inc., Sshanghai, CN;
Yaowu Mo, Shanghai, CN;
Zhibin Xiong, Granite Bay, CA (US);
Chen Xu, Shanghai, CN;
Zexu Shao, Shanghai, CN;
Ko Ping Keung, Ma On Shan, HK;
SMARTSENS TECHNOLOGY (U.S.), INC., Shanghai, CN;
Abstract
A pixel cell has four maskless phase detection photodiodes sharing the same readout amplifier, microlens and filter color. The four photodiodes are configured to operate in two adjacent pairs wherein the two adjacent pairs of photodiodes are separated by a light guide and are positioned under the single microlens such that light incident in a first direction is collected in a first pair of photodiodes of the two adjacent pairs of photodiodes and light incident in a second direction is collected in a second pair of photodiodes of the two adjacent pairs of photodiodes. The microlens has a plano-convex shape which causes light to be incident in two directions on photodiodes positioned under each of two sides of the microlens.