自由曲面透鏡配光的大功率LED路燈燈頭
The invention provides a freeform lens, which comprises a body (1) with a substantially bowl-shaped structure formed by a transparent material; the bottom of the body sinks inwards to form a light source area (2) which can accommodate an LED; the surface, surrounding the light source area (2), of the body (1) is a refracting surface (3); the periphery of the body (1) is a full reflecting surface (4) capable of reflecting light; the upper part of the body is a light exit surface (5); and after a light source emitted by the light source area (2) passes through the refracting surface (3) and enters the body (1), light directly passes through light exit surface (5) and/or the light is reflected by the full reflecting surface (4) to enter the body again and pass through the emergent surface (5). The invention also provides a high power LED lamp holder for the freeform light distribution of the freeform lens. The LED lamp holder can be used by a designer for flexible and high-efficiency light distribution on difference use occasions.
Inventor: DU, Xue | JIANG, Jin-bo | LI, Rong-bin | WANG, Wen-kui | ZHANG, Zhi-hui
Priority Number: CN101539267B
IPC Current: F21V000504 | F21Y010102
Assignee Applicant: The Hong Kong University of Science and Technology
Title: High power LED lamp holder for light distribution of freeform lens | Free curved surface lens light distribution of large power LED street lamp head
Usefulness: High power LED lamp holder for light distribution of freeform lens | Free curved surface lens light distribution of large power LED street lamp head
Novelty: Lens for use in LED lamp cap, has light source region for emitting light source that is passed through light refracting surface, entered into main body, passed through light emitting surface and reflected by perfect reflecting surface
光學
發光二極管/有機發光二極管
LEE Wing Bun
TO Sandy
JIANG Jin Bo
CHEUNG Chi Fai
王文奎
中國內地
