Optical: systems and elements – Lens – With reflecting element
Reexamination Certificate
2006-05-30
2006-05-30
Spector, David N. (Department: 2873)
Optical: systems and elements
Lens
With reflecting element
C359S846000, C359S720000, C359S290000
Reexamination Certificate
active
07054075
ABSTRACT:
The invention provides an optical apparatus enabling diopter adjustment, etc. to be achieved using, for instance, a reflection type variable-optical property optical element or a variable-optical property mirror but without recourse to any mechanical moving part. The variable-optical property mirror9comprises an aluminum-coated thin film9aand a plurality of electrodes9b. Via variable resistors11and a power source switch13a power source12is connected between the thin film9aand the electrodes9b, so that the resistance values of the variable resistors11can be controlled by an operating unit14. The shape of the thin film9aas a reflecting surface is controlled by changing the resistance value of each variable resistor11in response to a signal from the operating unit14in such a manner that the imaging capability of the variable mirror is optimized.
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Vdovin, G.; “Quick Focusing of Image Optics Using Micromachined Adaptive Mirrors,” Optics Communications, 140 (1997) pp. 187,190.
Hayakawa Kazuhito
Nagaoka Toshiyuki
Nagata Tetsuo
Nishioka Kimihiko
Takeyama Tetsuhide
Olympus Corporation
Pillsbury & Winthrop LLP
Spector David N.
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