Electronic device and method for non-contact capacitive and optical pin hole fingerprint detection

An electronic device, comprising:

• an optical image sensor;
• a cover made of optically transmissive material;
• and
• a single pin hole opening arranged between the optical image sensor and the transparent cover through which all light reflected from a finger spaced above and in non-contact with the transparent cover passes onto the optical image sensor for taking the entirety of a sample fingerprint.

A method of using an electronic device, comprising:

• activating a light source to direct light from the electronic device onto a finger arranged a spaced distance from the electronic device;
• capturing light reflected from the finger placement area through a single pin hole opening within a ring electrode and onto an optical image sensor while maintaining the finger a spaced distance from the electronic device;
• comparing a sample fingerprint of the finger to a stored fingerprint;
• and
• unlocking the electronic device if the sample fingerprint compares favorably to the stored fingerprint.