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:
Sep. 09, 2025
Filed:
Sep. 21, 2021
Apple Inc., Cupertino, CA (US);
Tong Chen, Fremont, CA (US);
Ahmet Fatih Cihan, San Jose, CA (US);
Edward Vail, Menlo Park, CA (US);
Weiping Li, Pleasanton, CA (US);
Xiaolong Fang, Fremont, CA (US);
Xibin Zhou, Palo Alto, CA (US);
Pengfei Qiao, El Cerrito, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Self-mixing interferometry (SMI) sensors may include vertical cavity surface emitting lasers (VCSEL), photodetectors, and microelectromechanical systems (MEMS). The VCSEL, photodetectors, and MEMS may be vertically stacked. The MEMS may be moveable with respect to a VCSEL and may change a cavity length associated with the VCSEL. By changing the cavity length associated with the VCSEL, certain properties of emitted light may be changed, such as a wavelength value of the emitted light.