Back to results
US 2019/0197290 A1Published application
Optical fingerprint sensor
AssigneeVisEra Technologies Company Limited
InventorsHao-Min CHEN, Hsin-Wei MAO, Han-Lin WU
Life of this patent
Estimating the term…
Abstract
An optical fingerprint sensor, includes: an image sensor array; a collimator layer disposed above the image sensor array, the collimator array having an array of first apertures; a light guiding layer disposed on the collimator layer; a light source emitting light into the light guiding layer; and a sensing area disposed above the light guiding layer. The light guiding layer allows a portion of the light from the light source to enter to the sensing area while directing the remaining portion of the light forward.
Claims15
An optical fingerprint sensor, comprising:
- an image sensor array;
- a collimator layer disposed above the image sensor array, the collimator array having an array of first apertures;
- a light guiding layer disposed on the collimator layer;
- a light source emitting light into the light guiding layer;
- and
- a sensing area disposed above the light guiding layer,
- wherein the light guiding layer allows a portion of the light from the light source to enter to the sensing area while directing the remaining portion of the light forward.
4 more elements
Dependencies are inferred from the claim text.