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US 11,153,513 B2Granted
Light source for camera
AssigneeSynaptics Incorporated
InventorsBoyan Ivanov Bonev, Marek Mienko
Life of this patent
Estimating the term…
Abstract
A device comprises a first camera, wherein the first camera includes one or more photosensors configured to detect visible light passing, in a first direction, through a first surface. The device further includes a light source configured to emit infrared (IR) light, in a second direction opposite the first direction, through the first surface. The device also includes a second camera configured to detect reflections of the IR light.
Claims23
A device comprising:
- a display;
- a first camera including one or more photosensors configured to detect visible light passing, in a first direction, through a first surface separate from the display;
- a light source configured to emit infrared (IR) light, in a second direction opposite the first direction, through the first surface so that the IR light does not pass through the display in the second direction;
- and
- a second camera disposed behind the display and configured to detect reflections of the IR light passing through the display in the first direction.
2 more elements
A device comprising:
- a display;
- a lens separate from the display;
- one or more photosensors configured to detect visible light passing through the lens in a first direction;
- a light source configured to emit near-infrared (NIR) light through the lens in a second direction opposite the first direction so that the NIR light does not pass through the display in the second direction;
- and
- a reflector configured to transmit the visible light to the one or more photosensors while reflecting the NIR light away from the one or more photosensors.
3 more elements
A device comprising:
- a display;
- one or more photosensors configured to detect visible light or infrared (IR) light passing, in a first direction, through a first surface separate from the display;
- a light source configured to emit light, in a second direction opposite the first direction, through the first surface so that the emitted light does not pass through the display in the second direction;
- and
- a light guide configured to steer the emitted light towards the first surface, wherein the first surface comprises at least a portion of the light guide.
2 more elements
Dependencies are inferred from the claim text.