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US 9,958,960 B2Granted
Three-dimensional imaging and display system
AssigneeApple Inc.
InventorChristoph H. Krah
Life of this patent
Estimating the term…
Abstract
A three-dimensional imaging and display system is provided in which input is optically detected in an imaging volume by measuring the path length of an amplitude modulated scanning beam as a function of the phase shift thereof. Visual image feedback concerning the detected input is presented.
Claims18
A scanning apparatus, comprising:
- a first radiation source, capable of emitting a modulated infrared beam;
- a second radiation source, capable of emitting a visible light beam;
- a scanning mirror capable of scanning, in a raster pattern, both the modulated infrared and the visible light beams over an imaging volume;
- a receiver capable of detecting the modulated infrared beam returning from the imaging volume;
- and
- a processor capable of processing a signal from the receiver in order to detect an object in the imaging volume and to control the second radiation source to project images.
3 more elements
A method for scanning, comprising:
- emitting a modulated infrared beam and a visible light beam;
- scanning, using a scanning mirror, both the modulated infrared and the visible light beams over an imaging volume in a raster pattern;
- detecting the modulated infrared beam returning from the imaging volume;
- generating a signal in response to the detected modulated infrared beam;
- processing the signal to detect an object in the imaging volume;
- and
- controlling the visible light beam to project images in response to the detected object.
4 more elements
An electronic device, comprising:
- a scanning apparatus, comprising:
- a first radiation source, capable of emitting a modulated infrared beam;
- a second radiation source, capable of emitting a visible light beam;
- a scanning mirror capable of scanning, in a raster pattern, both the modulated infrared and the visible light beams over an imaging volume;
- a receiver capable of detecting the modulated infrared beam returning from the imaging volume;
- and
- a processor capable of processing a signal from the receiver to detect an object in the imaging volume and to control the second radiation source to project images.
4 more elements
Dependencies are inferred from the claim text.