User device incorporating multi-sensing sensor device

A method, comprising:

• performing, by a single sensor device that is one of a plurality of components of a user device, a security functionality using a subcutaneous identification technique based on one or more first wavelengths of light received at the single sensor device,
• wherein the user device comprises an optical filter comprising a plurality of layers, and
• wherein thicknesses of the plurality of layers cause different wavelengths of light to be directed to different sensor elements of the single sensor device;
• transmitting, by the single sensor device, a near-infrared light toward a hand of a user;
• receiving, by the single sensor device, reflected light based on transmitting near-infrared light toward the hand;
• and
• detecting, by the single sensor device, a health parameter of the user based on measurements of one or more second wavelengths of the reflected light.

A user device, comprising:

• a display;
• a single sensor device disposed behind the display and configured to perform multiple different sensing functionalities,
• wherein the multiple different sensing functionalities include one or more of:
• a security functionality,
• a health monitoring functionality, or
• a liveness determination;
• and
• an optical filter comprising a plurality of layers,
• wherein thicknesses of the plurality of layers cause different wavelengths of light to be directed to different sensor elements of the single sensor device, and
• wherein the single sensor device is configured to perform the multiple different sensing functionalities based on the different wavelengths of light.