Freeform Surface Variable Focusing Lens with ASIC Control Integrated Micromirror Array Device

A freeform variable focusing lens with ASIC control integrated micromirror array comprising:

• a. a micromirror array device forming reflective type freeform optical surfaces with variable focusing property comprising:
• i. a plurality of micromirrors wherein the micromirrors are arranged in an array and said each micromirror have at least two actuators with individually and independently controlled electrodes;
• ii. a substrate for the micromirror array device wherein the said substrate has a plurality of MEMS electrodes to operate the individual actuators;
• and
• iii. a plurality of connecting means connected through the substrate from one side of the substrate (where the micromirrors are present) to the other side of the substrate to deliver control voltages of the electrodes;
• b. an ASIC (Application-Specific Integrated Circuit) device generating the control voltages of the actuators in the micromirror array device comprising:
• i. a plurality of ASIC electrodes wherein the plurality of the ASIC electrodes provide control voltages to the actuators in the micromirror array device through the plurality of the connecting means in the substrate of the micromirror array device:
• ii. a plurality of column drivers to generates control voltages through DACs (Digital to Analog Converter) and determine voltages for the part of the plurality of the ASIC electrode;
• iii. a plurality of row drivers to times can for the optical surface data, wherein the row drivers deliver the control voltages from the column drivers to the plurality of the ASIC electrodes with timed switching method;
• iv. a timing controller generating timing signals for the column drivers and the row drivers to provide the control voltages to the plurality of the ASIC electrodes;
• v. high voltage amplifiers generating high voltages enough to operating the actuators in the micromirror array device;
• vi. external connections providing the freeform optical surfaces in the control voltage format data and providing power supplies to the ASIC device;
• and
• vii. a memory device for data storage of the freeform optical surfaces to operate as a variable focusing lens;
• wherein the micromirror array device and the ASIC device are bonded together while fabricating and wherein the control voltages are delivered from the plurality of the ASIC electrodes to the plurality of the MEMS electrodes through the connecting means in the substrate for the plurality of the micromirrors, the ASIC electrodes and the MEMS electrodes have correspondence to control the individual micromirrors in the micromirror array device.