Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-11-29
2005-11-29
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S298000, C359S846000
Reexamination Certificate
active
06970284
ABSTRACT:
A variable focal length lens comprising micromirrors with one degree of freedom rotation is invented. The lens consists of many micromirrors and actuating components. The array of micromirrors with one degree of freedom rotation makes all lights scattered from one point of an object converge at one point of image plane by using rotation of micromirror. The micromirror has the same function as a mirror. Therefore, the reflective surface of the micromirror is made of metal, metal compound, multi-layered dielectric material, or other materials with high reflectivity. The actuating components control the rotational displacements of micromirrors electrostatically and/or electromagnetically. The optical efficiency of the micromirror array lens is increased by locating a mechanical structure upholding micromirrors and the actuating components under micromirrors. The known CMOS technologies can remove the loss in effective reflective area due to electrode pads and wires.
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Baek Sang Hyune
Kim Tae Hyeon
Angstrom Inc.
Hanig Richard
Park John K.
Park & Sutton LLP
Stereo Display Inc.
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