2520953-A1 cites 14 patents.

An illumination lens comprising: a two-dimensional beamforming lens-profile having an output surface and an input surface, where the profile acts to deflect light rays from a light source into a relatively narrow output beam the lens-profile encloses a zone of higher refractive index than that of the area outside the profile where the higher refractive-index zone admits the light rays a transverse axis of revolution and symmetry which extends transversely to the lens-profile a surface of revolution formed by circularly sweeping the lens-profile about the axis of revolution forming a circumferential beam from the output beam emitted by said surface of revolution, characterized in that the output surface comprises a curved outer surface adapted to totally internally reflect light beams entering the lens through the input surface and refract light beams that have been internally reflected.

Title
Luminaires à émission de lumière périphérique et éléments de lentille formés par des profils de balayage à axe transversal
Zirkulär emittierende Leuchtkörper und durch Querachsen-Profilziehstangen geformte Linsenelemente
Circumferentially emitting luminaires and lens elements formed by transverse-axis profile-sweeps
Application Number
EP20120176687 20040729
Publication Number
2520953 (A1)
Application Date
July 29, 2004
Publication Date
November 7, 2012
Inventor
MINANO JUAN CARLOS
ES
BENITEZ PABLO
ES
SUN YUPIN
US
PARKYN WILLIAM A JR
US
FALICOFF WAQIDI
US
Assignee
LIGHT ENGINE
CN
IPC
G02B 06/00
G02B 27/00
G02B 17/08
G02B 03/04
F21V 08/00
G02B 03/00
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