| 发明名称 | Hot light emitting diode (LED) lighting systems | ||
| 摘要 | LED lighting systems operate their LED above a junction temperature of 85° C. and space apart from the LED, components of the LED lighting system that reduce an expected lifetime of the LED lighting system to less than 25,000 hours as a result of operating the LED above the junction temperature of 85° C. Accordingly, the LED itself may be driven hotter than is conventionally the case, without impacting its lifetime. By allowing the LED to operate hotter, reduced heat sinking may be needed for the LED itself, which can decrease the cost, size and/or complexity of the thermal management system for the LED lighting system and/or can allow a thermal budget for the LED lighting system to be used elsewhere. Related structures are also described. | ||
| 申请公布号 | US9074737(B2) | 申请公布日期 | 2015.07.07 |
| 申请号 | US201213492041 | 申请日期 | 2012.06.08 |
| 申请人 | Cree, Inc. | 发明人 | van de Ven Antony P.;Negley Gerald H. |
| 分类号 | F21K99/00;F21V3/04;F21Y101/02;H01L33/50;F21V3/02;F21V29/70 | 主分类号 | F21K99/00 |
| 代理机构 | Myers Bigel Sibley & Sajovec, P.A. | 代理人 | Myers Bigel Sibley & Sajovec, P.A. |
| 主权项 | 1. A Light Emitting Diode (LED) lighting system comprising: an unpackaged LED die that is devoid of encapsulant directly thereon; a power supply that is electrically connected to the unpackaged LED die and that is configured to bias the unpackaged LED die so as to allow a junction temperature of the unpackaged LED die above 125° C.; and a wavelength conversion material that is spaced apart from the unpackaged LED die and that is configured to downconvert at least some of the light that is emitted by the unpackaged LED die. | ||
| 地址 | Durham NC US | ||