Patent ID: 9435638
Filing Date: 2016-09-06
CPC Classification: G01B,G01S,G02B,H01L

Claim Text:
1. An optical scanning device, comprising a substrate, which is etched to define: an array of two or more parallel micromirrors, comprising at least first and second micromirrors; a gimbal, closely surrounding the entire array of micromirrors; respective first spindles connecting the micromirrors to the support, thereby defining respective first parallel axes of rotation of the micromirrors relative to the gimbal, and second spindles connecting the gimbal to the substrate and defining a second axis of rotation, perpendicular to the first axes, such that the second spindles are parallel to the second axis; and one or more flexible belts, which comprise thin strips separated by grooves etched through the substrate from the gimbal on one side of the strips and from the micromirrors on the other side of the strips, and which have a first end attached to a first edge of the first micromirror and a second end attached to a second edge of the second micromirror and are anchored to the gimbal at a point between the first and second ends so as to mechanically synchronize an angular orientation of oscillation of the micromirrors about the respective first axes, while the gimbal rotates about the second axis relative to the substrate in order to maintain phase locking.