发明授权
US07295726B1 Gimbal-less micro-electro-mechanical-system tip-tilt and tip-tilt-piston actuators and a method for forming the same 有权
万向节微机电系统尖端倾斜和倾斜 - 倾斜 - 活塞致动器及其形成方法

Gimbal-less micro-electro-mechanical-system tip-tilt and tip-tilt-piston actuators and a method for forming the same
摘要:
Fully monolithic gimbal-less micro-electro-mechanical-system (MEMS) devices with large static optical beam deflection and fabrications methods are disclosed. The devices can achieve high speed of operation for both axes. Actuators are connected to a device, or device mount by linkages that allow static two-axis rotation in addition to pistoning without the need for gimbals, or specialized isolation technologies. The device may be actuated by vertical comb-drive actuators, which are coupled by bi-axial flexures to a central micromirror or device mount. Devices may be fabricated by etching an upper layer both from the top side and from the bottom side to form beams at different levels, The beams include a plurality of lower beams, a plurality of full-thickness beams, and a plurality of upper beams, the lower, full-thickness and upper beams That form vertical combdrive actuators, suspension beams, flexures, and a device mount.
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