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Pulse operation to the halogen lamp 发明申请

2023-02-01 4800 114K 0

专利信息

申请日期 2025-07-22 申请号 JP2011553565
公开(公告)号 JP2012520544A 公开(公告)日 2012-09-06
公开国别 JP 申请人省市代码 全国
申请人 Koninklijke Philips Electronics N V590000248
简介 The invention relates to a halogen automotive lamp for pulse width operation, a lighting assembly including a halogen lamp and to a method of operating a halogen lamp. The lamp comprises a transparent lamp vessel with a gas filling comprising a rare gas component and a halogen component. A filament is arranged within the vessel. In conventional halogen lamps operation with pulsed electrical power, such as e.g. PWM operation of automotive halogen lamps for cornering and bending light lead to shortened lifetimes. In order to propose a lamp with increased lifetime under pulse operation, the gas filling comprises nitrogen in an amount of 0.1-5 mol-%. It has surprisingly been found that filament deformation may be counteracted by the corresponding small amount of nitrogen.


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