Light device with photonic band pass filter,申请号US20030346488-传众专利搜索

Light device with photonic band pass filter

申请公布号：US6979105(B2)

申请号：US20030346488

申请日期：2003.01.17

申请公布日期：2005.12.27

申请人：

LEYSATH JOSEPH A

发明人：LEYSATH JOSEPH A.

分类号：B60Q3/02;(IPC1-7):F21V9/00

主分类号：B60Q3/02

摘要：A light fixture having a light reflector, a light source mounted on the reflector, and a photonic filter mounted on the reflector in a position such that light emitting directly from the light source and light from the lamp reflecting from the light source impinges on a surface of the filter, the filter configured to transmit therethrough light of a selected range of wavelengths and to attenuate light of wavelengths outside of the selected range. The light source may be a fluorescent lamp, an incandescent lamp, a HID lamp, or an LED, and may be one of a plurality of light sources. The filter may be formed in a semiconductor substrate and may have an LED light source formed in the same substrate and positioned such that the light produced propagates in a direction away from the filter and toward the reflector, where it is reflected back to the filter.