Title:
A LED LAMP
Document Type and Number:
WIPO Patent Application WO/2009/030121
Kind Code:
A1
Abstract:
A LED lamp uses a high-power LED (3) encapsulating a single chip or integrally
encapsulating multi chips as an illuminant, and a free-curved surface lens (2)
is disposed in the light irradiating direction of the LED. When a satisfatory
direct current is exerted on the LED (3), the LED (3) works and irradiates light,
and light goes through the free-curved surface lens (2) and sends out. The lamp
can perform multi-direction and multi-angle illuminations by means of effectively
varying the illumination directions of the light emitting from the LED (3) through
the refraction of the free-curved surface lens (2). With the refraction effect
of the free-curved surface lens (2) given with different incident angles and
different surface curvatures of incident planes and exit planes of light, light
emitting from the LED (3) goes through the free-curved surface lens (2), and desired
distribution effect of light can be achieved.
Inventors:
HU XIAOBING (CN)
Application Number:
PCT/CN2008/070529
Publication Date:
March 12, 2009
Filing Date:
March 19, 2008
Export Citation:
Assignee:
HU XIAOBING (CN)
International Classes:
F21V5/04; G02B3/06; G02B19/00
Foreign References:
| CN101013193A | 2007-08-08 | |||
| US20070109952A1 | 2007-05-17 | |||
| CN1831636A | 2006-09-13 | |||
| US20050146879A1 | 2005-07-07 | |||
| US20060152932A1 | 2006-07-13 |
Attorney, Agent or Firm:
J.Z.M.C PATENT AND TRADEMARK LAW OFFICE (Room 5022 No.335,Guoding Road, YANG Pu, Shanghai 3, CN)
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