Patent ID: 9736459
Date: 2017-08-15
CPC Classifications: G02B,G03B,H01L,H01S,H04N

Claim:
1. Optical apparatus, comprising: a plurality of radiation sources, mounted on a substrate and configured to emit optical radiation; a patterning element, comprising a transparency; collection optics, comprising an array of micro-optics, which are aligned with the radiation sources so that a respective micro-optic collects the radiation emitted by each of the radiation sources and directs the radiation toward the patterning element, while causing the optical radiation emitted by each of the radiation sources to pass through a different, respective region of the transparency so as to form different, respective patterns; projection optics, which are configured to project the patterns of the radiation from the patterning element onto a scene; an imaging assembly, comprising an image sensor and objective optics configured to form an optical image of the scene on the image sensor, so that the image sensor forms electronic images of the scene; and a controller, which is coupled to actuate the radiation sources sequentially in a pulsed mode, so as to form the different, respective patterns in succession, and to analyze the patterns in the electronic images so as to generate a depth map of the scene by analyzing multiple images, generated in succession by the image sensor, containing the different, respective patterns formed due to emission from each of the plurality of radiation sources.