Optical: systems and elements – Optical modulator – Light wave directional modulation
Reexamination Certificate
2006-05-02
2006-05-02
Mack, Ricky L. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave directional modulation
C359S320000, C359S322000
Reexamination Certificate
active
07038835
ABSTRACT:
An optical deflection device includes an optical deflection element having a pair of transparent boards arranged in a mutually opposing manner. A liquid crystal layer is filled between the boards and forms a chiral smectic C phase. An orientation film orients liquid crystal molecules in the liquid crystal layer in a substantially perpendicular direction with respect to the liquid crystal layer. Electrodes generate an electric field in a substantially parallel direction with respect to the liquid crystal layer. A first voltage application part applies, to the electrodes, an ac voltage of a deflection frequency switching the optical deflection direction of the optical deflection element. A second voltage application part applies, to the electrodes, an ac voltage of a higher frequency than the deflection frequency. A stop process part causes the second voltage application part to apply the ac voltage of the higher frequency than the deflection frequency after causing the first voltage application part to apply the ac voltage of the deflection frequency, when stopping an operation of switching the optical deflection direction of the optical-deflection element.
REFERENCES:
patent: 5619765 (1997-04-01), Tokita et al.
patent: 5638842 (1997-06-01), Tokita et al.
patent: 5769957 (1998-06-01), Murakami et al.
patent: 5923928 (1999-07-01), Sugimoto
patent: 5926669 (1999-07-01), Sugimoto et al.
patent: 5969780 (1999-10-01), Matsumoto et al.
patent: 6006062 (1999-12-01), Takahashi et al.
patent: 6061042 (2000-05-01), Takahashi et al.
patent: 6144832 (2000-11-01), Nimura et al.
patent: 6151093 (2000-11-01), Takiguchi et al.
patent: 6157795 (2000-12-01), Kadonaga et al.
patent: 6223008 (2001-04-01), Takahashi et al.
patent: 6351299 (2002-02-01), Takiguchi et al.
patent: 6480345 (2002-11-01), Kawashima et al.
patent: 6497488 (2002-12-01), Yamauchi et al.
patent: 6524759 (2003-02-01), Sugimoto et al.
patent: 6537711 (2003-03-01), Nimura et al.
patent: 2002/0135729 (2002-09-01), Tokita et al.
patent: 2003/0098945 (2003-05-01), Sugimoto et al.
patent: 5-204001 (1993-08-01), None
patent: 5-313116 (1993-11-01), None
patent: 6-18940 (1994-01-01), None
patent: 6-194695 (1994-07-01), None
patent: 6-222368 (1994-08-01), None
patent: 6-258646 (1994-09-01), None
patent: 6-324320 (1994-11-01), None
patent: 7-64123 (1995-03-01), None
patent: 8-262391 (1996-10-01), None
patent: 9-133904 (1997-05-01), None
patent: 9-133931 (1997-05-01), None
patent: 10-133135 (1998-05-01), None
patent: 11-109304 (1999-04-01), None
patent: 2000-507005 (2000-06-01), None
patent: 2000-193925 (2000-07-01), None
patent: WO 98/30934 (1998-07-01), None
Edited by M. Aoki, 3 pages “Optoelectronic Device”, 1986.
Kobayashi Masanori
Matsuki Yumi
Nimura Shigeaki
Sugimoto Hiroyuki
Takiguchi Yasuyuki
Mack Ricky L.
Thomas Brandi
LandOfFree
Optical deflection device and optical deflection method that... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical deflection device and optical deflection method that..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical deflection device and optical deflection method that... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3575820