US 7,473,019 B2
Lighting apparatus
Joseph John Laski, Stoneham, Mass. (US)
Assigned to Osram Opto Semiconductors GmbH, Regensburg (Germany)
Filed on Sep. 29, 2005, as Appl. No. 11/239,718.
Prior Publication US 2007/0070623 A1, Mar. 29, 2007
Int. Cl. F21V 19/04 (2006.01)
U.S. Cl. 362—612  [362/308; 362/613] 13 Claims
OG exemplary drawing
 
1. A lighting apparatus comprising:
a cavity formed by a light emitting front side,
a reflective backside arranged opposite to the front side and a sidewall, and
a plurality of light emitting semiconductor components disposed completely within the cavity and mounted on the sidewall in such a way that the light of the plurality of light emitting semiconductor components is irradiated in the cavity,
wherein the reflective backside is formed in such a way that the cavity is divided into at least two portions directing the light to the front side, and
wherein at least one optical element in the form of a cylindrical lens is optically connected to the semiconductor components.