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Title:
METHOD AND DEVICE FOR GREATLY INCREASING IRRADIATION RANGE OF STREET LAMP
Document Type and Number:
WIPO Patent Application WO/2015/090134
Kind Code:
A1
Abstract:
A method and a device for greatly increasing the irradiation range of a lamp. Firstly, a COB module LED point light source is adopted as a light source; secondly, the LED point light source is covered in an incident concave surface (11) and subjected to primary refraction by the incident concave surface (11); and thirdly, the incident concave surface (11) is further covered by one light-distribution free curved surface (12), the light ray subjected to the primary refraction by the incident concave surface (11) is subjected to the refraction by the light-distribution free curved surface (12) and is deflected with a large angle. After two times of refraction, the angle between the direction of the peak light intensity in the direction perpendicular to the pavement trend and the optical axis (OZ) ranges from 60° to 75°, and the light-distribution angle in the direction consistent with the pavement trend ranges from 120° to 150°, so that at least 6-lane illumination and at least 35-meter interval illumination or remote illumination by a high-pole lamp are achieved by a single COB module LED point light source.

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Inventors:
LV GUOFENG (CN)
LV WENQING (CN)
Application Number:
PCT/CN2014/092328
Publication Date:
June 25, 2015
Filing Date:
November 27, 2014
Export Citation:
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Assignee:
HONGLI LINGHTING GROUP CO LTD (CN)
International Classes:
F21V5/04; F21W131/103; F21Y101/02
Foreign References:
CN103644532A2014-03-19
CN203797558U2014-08-27
CN103307548A2013-09-18
CN203147627U2013-08-21
CN101915391A2010-12-15
CN203323002U2013-12-04
CN103375769A2013-10-30
CN101660705A2010-03-03
JP2012186019A2012-09-27
US20110320024A12011-12-29
Other References:
None
Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
南京天华专利代理有限责任公司 (CN)
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