US6874689B2 - Laser Beam Scanning Device Employing a Scanning Element Having a Flexible Photo-Etched Gap Region Disposed Between an Anchored Base Portion and a Light Beam Deflecting Portion Having a Natural Frequency of Oscillation Tuned by the Physical Dimensions of Said Flexible Photo-Etched Gap Region and Forcibly Oscillated About a Fixed Pivot Point at an Electronically-Controlled Frequency of Oscillation Substantially Different from Said Natural Resonant Frequency of Oscillation | Patent Bear