Focal plane array system and lidar device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSunil KIM, Minkyung LEE
Life of this patent
Estimating the term…
Abstract
An optical sensor may include an input coupler configured to couple a light beam, a plurality of pixels on a substrate, a waveguide configured to transmit the light beam to the plurality of pixels. Each of the plurality of pixels may include an optical switch configured to selectively transmit the light beam; an output coupler comprising an inclined side surface and configured to change a traveling direction of the light beam to output the light beam in the changed traveling direction, and a nano-structure element on a traveling path of the light beam output from the output coupler and comprising at least one nano structure.
Claims20
An optical sensor comprising:
- an input coupler configured to couple a light beam;
- a plurality of pixels on a substrate;
- and
- a waveguide configured to transmit the light beam to the plurality of pixels,
- wherein each of the plurality of pixels comprises:
- an optical switch configured to selectively transmit the light beam;
- an output coupler comprising an inclined side surface and configured to change a traveling direction of the light beam to output the light beam in the changed traveling direction;
- and
- a nano-structure element on a traveling path of the light beam output from the output coupler and comprising at least one nano structure.
A light detection and ranging (LiDAR) device comprising:
- a processor configured to control the LiDAR device;
- an input coupler configured to couple a light beam incident on the LiDAR device;
- a plurality of pixels configured to receive the light beam reflected from an object;
- a waveguide configured to transmit the light beam from the input coupler to the plurality of pixels,
- wherein each of the plurality of pixels is provided on a substrate and comprises:
- an optical switch configured to selectively transmit the light beam;
- an output coupler comprising an inclined side surface and configured to change a traveling direction of the light beam to output the light beam in the changed traveling direction;
- and
- a nano-structure element provided on a traveling path of the light beam output from the output coupler and comprising at least one nano structure.
An optical sensor comprising:
- a plurality of pixels on a substrate, each of the plurality of pixels comprising:
- an input coupler configured to couple incident light;
- an output coupler comprising an inclined side surface;
- a waveguide extending from the input coupler to the output coupler;
- and
- a nanostructure positioned at a level different from a level of the output coupler relative to the substrate;
- wherein the inclined side surface of the output coupler is configured to redirect the light toward the nanostructure at the different level.
Dependencies are inferred from the claim text.