发明授权
- 专利标题: Operating apparatus for discharge lamp
- 专利标题(中): 放电灯操作装置
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申请号: US912232申请日: 1997-08-15
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公开(公告)号: US5949192A公开(公告)日: 1999-09-07
- 发明人: Satoshi Kominami , Kouji Miyazaki , Shigeru Horii
- 申请人: Satoshi Kominami , Kouji Miyazaki , Shigeru Horii
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX8-219584 19960821
- 主分类号: H05B41/292
- IPC分类号: H05B41/292 ; H05B39/00
摘要:
An operating apparatus for a discharge lamp, which includes a pair of electrodes and an arc tube having a material enclosed therein, includes: a selective depositing device for selectively depositing the material on one electrode of the pair of electrodes when the discharge lamp is turned off; and a ballast circuit for starting operation of the discharge lamp and maintaining the operation under rated conditions. The ballast circuit includes a starting pulse generator for applying a starting pulse to the discharge lamp when the discharge lamp starts the operation. The starting pulse generates an electric field acting from the one electrode of the pair of electrodes having the material deposited thereon to the other electrode.
公开/授权文献
- US4774795A Expansion joint 公开/授权日:1988-10-04