Patent ID: 9557630
Date: 2017-01-31
CPC Classifications: G02B,G03B,H04N

Claim:
1. A device comprising: at least two color lasers to produce visible light having at least two different wavelengths; a microelectromechanical system (MEMS) mirror configured to receive the visible light from the at least two color lasers and to reflect portions of the visible light to project an image-bearing light beam into an environment; multiple independently rotatable prisms to receive the image-bearing light beam from the MEMS mirror and direct the image-bearing light beam to a location in the environment, the multiple independently rotatable prisms comprising at least a first prism having a first shape and a second prism having a second shape different from the first shape, the first prism and the second prism aligned along a center axis and independently rotatable around the center axis to redirect the image-bearing light beam in one of multiple possible directions within the environment; an infrared (IR) light source configured to emit IR light for illuminating at least a portion of the environment, wherein at least part of the IR light passes through the first prism and the second prism and into the environment where the at least part of the IR light is reflected, as reflected IR light, by an object in the environment; and a sensor configured to receive at least a portion of the reflected IR light reflected by the object in the environment, wherein the at least the portion of the reflected IR light passes through the first prism and the second prism from the environment to the sensor.