Title:
LIGHT SOURCE LAMP LIGHTING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2012/029139
Kind Code:
A1
Abstract:
A light source lamp lighting device according to the present invention is provided with a light source lamp, a cooling means for cooling the light source lamp, a switched-off time measuring unit for measuring switched-off time information indicative of the switched-off period from the last time the light source lamp was turned off to the present time, a storage unit for storing a lighting result which is a history of the success and failure of the past lighting of the light source lamp, a plurality of cooling times corresponding to the switched-off time indicated by the switched-off time information as a cooling time for operating the cooling means, and a first threshold defined with respect to the lighting result, and a control unit for retrieving the lighting result, the cooling time stored in the storage unit corresponding to the switched-off time measured by the switched-off time measuring unit and the first threshold, when lighting the light source lamp, and calculating a value of a cooling time for operating the cooling means by subtracting a given time from the retrieved cooling time if the number of successes of the lighting indicated by the lighting result exceeds the first threshold.
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Inventors:
SAKAMOTO KAZUAKI (JP)
Application Number:
PCT/JP2010/064874
Publication Date:
March 08, 2012
Filing Date:
September 01, 2010
Export Citation:
Assignee:
NEC DISPLAY SOLUTIONS LTD (JP)
SAKAMOTO KAZUAKI (JP)
SAKAMOTO KAZUAKI (JP)
International Classes:
F21V29/02; F21S2/00; G03B21/16; H05B37/02; F21Y101/00
Foreign References:
JP3792641B2 | 2006-07-05 | |||
JP2004348109A | 2004-12-09 | |||
JP2001356417A | 2001-12-26 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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Claims:
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