Nanostructured optical element, depth sensor, and electronic device
AssigneeSamsung Electronics Co., Ltd.
InventorsSeunghoon HAN, Byunghoon NA, Jangwoo YOU
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Abstract
Provided are a nanostructured optical element, a depth sensor, and an electronic device. The nanostructured optical element includes: an array of a plurality of laser sources; a meta-pattern layer including a two-dimensional array of plurality of first nano-posts; and a deflecting layer between the light source and the meta-pattern layer. Each of the first nano-posts has a dimension smaller than a wavelength of light output from the plurality of laser sources. The deflecting layer is configured to direct light from the light source onto the meta-pattern layer.
Claims20
A depth recognition apparatus comprising:
- a projector;
- a first sensor, disposed in a first position with respect to the projector, and configured to receive light from an object;
- a second sensor, disposed in a second position with respect to the projector, different from the first position, and configured to receive light from the object;
- and
- a processor configured to analyze the light received by at least one of the first and second sensors and thereby calculate a depth position of the object,
- wherein the projector comprises:
- a light source comprising an array of a plurality of laser sources outputting light;
- a meta-pattern layer comprising two-dimensional array of a plurality of first nano-posts, wherein each of the plurality of first nano-posts has a dimension smaller than a wavelength of light output by the plurality of laser sources, and wherein the meta-pattern layer is configured to convert light incident thereon into structured light;
- and
- a deflecting layer between the light source and the meta-pattern layer, the deflecting layer configured to direct light from the light source onto the meta-pattern layer.
Dependencies are inferred from the claim text.