Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-03-08
2005-03-08
Spector, David N. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S846000
Reexamination Certificate
active
06865009
ABSTRACT:
An optical apparatus includes a variable optical-property element to change its optical properties by applying an electric or magnetic field or temperature to a liquid crystal. In this way, the optical apparatus is reduced in thickness, and can be used in a cam era, a microscope, etc.
REFERENCES:
patent: 4046462 (1977-09-01), Fletcher et al.
patent: 4116537 (1978-09-01), Dilworth
patent: 4466703 (1984-08-01), Nishimoto
patent: 4564267 (1986-01-01), Nishimoto
patent: 4601545 (1986-07-01), Kern
patent: 4978205 (1990-12-01), Sato
patent: 5047847 (1991-09-01), Toda et al.
patent: 5071229 (1991-12-01), Oaki et al.
patent: 5097352 (1992-03-01), Takahashi et al.
patent: 5150234 (1992-09-01), Takahashi et al.
patent: 5387999 (1995-02-01), Hayashi
patent: 5532854 (1996-07-01), Fergason
patent: 5815233 (1998-09-01), Morokawa et al.
patent: 10-039239 (1998-02-01), None
Yoshina et al., “Fundamentals of Liquid Crystals and Display Applications”, Corona-Sha, Corona Publishing Ltd., p. 85-93, (1994).
Kiputa et al., “Light Control by Grating Structure Smaller Than Wavelength,” Optics, vol. 27 (No. 1), p. 12-17, (1998).
Gleb Vdovin, “Quick Focusing of Imaging Optics Using Micromachined Adaptive Mirrors,” Communications, p. 187-190, (Aug. 1997).
M.C. Wu et al., “Micromachined Free-Space Integrated Micro-Optics,” Sensors and Actuators, p. 127-134, (1995).
P. Rai-Chudhury, “Micromachining and Microfabrication,” Handbook of Microlithography, Micromachining and Microfabrication, SPIE Press, p. 486-497, (Sep. 1998).
Gleb Vdovin et al., “Flexible Mirror Micromachined in SIlicon,” Applied Optics, vol. 34 (No. 16), p. 2968-2972, (Jun. 1, 1995).
Takatsu, “Development and Commercialization of Tolan-Base Liquid Crystal,” Chemistry Association Monthly Report, p. 14-18, (Feb. 1997).
“New Art of Liquid Crystal Display,” Asahi Newspaper, (Jan. 14, 1998).
Goto et al., “Micro focusing optical device using piezoelectric thin film actuator,” SPIE Press, vol. 238 (No. 136).
Goto et al., “Microfocusing optical device using piezoelectric thin film actuator,” in Micro-Optics/Micromechanics and Laser Scanning and Shaping, M. Edward Motamedi, Leo Beiser, eds., Proc. SPIE 2383, p. 136-142, (1995).
Olympus Corporation
Spector David N.
LandOfFree
Variable optical-property element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable optical-property element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable optical-property element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3380090