微機電與感測器的全球商機及技術革新

Multi-mirror scanning depth engine

Title: Multi-mirror scanning depth engine
US Patent: 10,247,812
Assignee: Apple Inc.

Abstract: A scanning device includes a scanner, which includes a base and a gimbal, mounted within the base so as to rotate relative to the base about a first axis of rotation. A transmit mirror and at least one receive mirror are mounted within the gimbal so as to rotate in mutual synchronization about respective second axes, which are parallel to one another and perpendicular to the first axis. A transmitter emits a beam including pulses of light toward the transmit mirror, which reflects the beam so that the scanner scans the beam over a scene. A receiver receives, by reflection from the at least one receive mirror, the light reflected from the scene and generates an output indicative of the time of flight of the pulses to and from points in the scene.



optical scanning device 20
scanner 22
adjacent transmit mirror 24
 receive mirror 26
 gimbal 28
 hinges 30
base 32
hinges 34
transmitter 36
collimating lens 38
reflector 40
collection lens 42
receiver 44

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