LIGHTING DEVICE WITH OMNIDIRECTIONAL LIGHT DISTRIBUTION
摘要
A lighting device (2) comprises a light source (210) having a main forward emission direction (20), and an envelope (220) in which the light source (210) is arranged. The envelope (220) comprises an upper portion (225) having scattering properties and being arranged to reflect a part of the light from the light source (210) laterally and backwardly relative to the main forward emission direction (20) and transmit a part of the light from the light source (210). The light intensity distribution of the lighting device (2) is more uniform, as backward and lateral light intensity is increased while the light in the main forward emission direction (20) is still admitted.
申请公布号
WO2013056516(A1)
申请公布日期
2013.04.25
申请号
WO2012CN01405
申请日期
2012.10.19
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;HE, SHIBEI
发明人
HE, SHIBEI;ANSEMS, JOHANNES PETRUS MARIA;HAGELAAR, JORIS HUBERTUS ANTONIUS;BUKKEMS, PETER JOHANNES MARTINUS;GIELEN, VINCENT STEFAN DAVID;DEN BOER, REINIER IMRE ANTON