| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7acd9416af412b5972feb55a5e652ea2 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05B41-282 |
| filingDate |
2006-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aed1c543a7899d51463bfbc0007145c6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8fbafd9d5f8cb01270987f1fd0ec9e3 |
| publicationDate |
2007-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2007242421-A |
| titleOfInvention |
High pressure discharge lamp lighting device and image display device |
| abstract |
A high-pressure discharge lamp lighting device is provided that can easily maintain the temperature of an electrode of a high-pressure discharge lamp and the temperature in a bulb to suppress a change in light output. A step-down chopper circuit whose output is variable, a full bridge circuit that applies an alternating voltage generated from the output of the step-down chopper circuit to a high-pressure discharge lamp, and a step-down step at a timing based on the synchronization signal given from the outside A control circuit for controlling the output of the chopper circuit and the timing of polarity inversion by the full bridge circuit. The control circuit reverses the polarity of the voltage applied to the high-pressure discharge lamp for each synchronization signal. In addition, the polarity of the voltage applied to the high-pressure discharge lamp is inverted within a period between a pair of adjacent synchronization signals (FIG. 5B), and the period during which the lamp current increases within the period is the specified value. Is set to be shorter than the period ((c)). [Selection] Figure 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8803447-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010145644-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101827483-B
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009125661-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009125660-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101990788-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101990787-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8371701-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4605407-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4605406-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010195062-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010177150-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009252577-A |
| priorityDate |
2006-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |