Title:
OPTICAL SWITCH
Document Type and Number:
WIPO Patent Application WO/2008/044506
Kind Code:
A1
Abstract:
Detection means (52) detects an optimum drive voltage of a mirror device. Based on
the optimum drive voltage, correction means (53) corrects the value of a voltage for
driving a table (54b). Even if the optimum rotation angle of the mirror changes by
drift of the mirror or an environmental change such as a change in temperature, the
mirror can be driven to an optimum rotation angle.
Inventors:
YAMAGUCHI JOHJI (JP)
NEMOTO NARU (JP)
UCHIYAMA SHINGO (JP)
YAMAMOTO TSUYOSHI (JP)
NEMOTO NARU (JP)
UCHIYAMA SHINGO (JP)
YAMAMOTO TSUYOSHI (JP)
Application Number:
PCT/JP2007/069092
Publication Date:
April 17, 2008
Filing Date:
September 28, 2007
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
YAMAGUCHI JOHJI (JP)
NEMOTO NARU (JP)
UCHIYAMA SHINGO (JP)
YAMAMOTO TSUYOSHI (JP)
YAMAGUCHI JOHJI (JP)
NEMOTO NARU (JP)
UCHIYAMA SHINGO (JP)
YAMAMOTO TSUYOSHI (JP)
International Classes:
G02B26/08
Foreign References:
| JP2005181580A | 2005-07-07 | |||
| JP2005189548A | 2005-07-14 | |||
| JP2002236264A | 2002-08-23 | |||
| JP2003029171A | 2003-01-29 |
Attorney, Agent or Firm:
YAMAKAWA, Masaki et al. (8th Floor Shuwa-Tameike Building, 4-2, Nagatacho 2-chom, Chiyoda-ku Tokyo 14, JP)
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