发明名称 |
Neon-tube substitute using light-emitting diodes |
摘要 |
A tubular luminaire efficiently utilizes the light of a line of high-brightness unlensed LEDs to reproduce the homogeneous appearance of a neon tube. The transparent tube has an annular cross-section suitable for cost-effective manufacturing by extrusion. The LEDs are mounted in a line on a circuit board that can be positioned either inside or outside the tube. Their light shines into a cylindrical groove, thereby entering within the material of the tube. Above the groove, the wall of the tube has a spiral shape that reflects the light laterally so that it stays within the annular tube for a considerable path length. Volume scattering by a low density of scattering inclusions causes the light to escape as a homogenous glow. Alternatively, mild surface scattering from the inside surface can be used.
|
申请公布号 |
US8256918(B2) |
申请公布日期 |
2012.09.04 |
申请号 |
US20080682680 |
申请日期 |
2008.11.13 |
申请人 |
CHAVES JULIO C.;ALVAREZ ROBERTO;PARKYN WILLIAM A.;MINANO JUAN CARLOS;LIGHT PRESCRIPTIONS INNOVATORS, LLC |
发明人 |
CHAVES JULIO C.;ALVAREZ ROBERTO;PARKYN WILLIAM A.;MINANO JUAN CARLOS |
分类号 |
F21V33/00 |
主分类号 |
F21V33/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|