Title:
LED LAMP
Document Type and Number:
Japanese Patent JP2014127227
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an LED lamp which can uniformly emit light by dispersing light from an LED with a large number of light guide pins.SOLUTION: In an LED lamp 1 including an LED 2 serving as a light source and a lens 4 for passing the light emitted from the LED 2, a plurality of light guide pins 4a are erectly arranged on an inner face of the lens 4. Furthermore, the plurality of light guide pins 4a are erectly arranged on a coaxial circle in the inner face of the lens 4 about an optical axis X of the lens 4. Furthermore, alignment pitches and/or diameters of the plurality of light guide pins 4a are designed to become larger toward the outer side of the radial direction from the optical axis X, or heights of the plurality of light guide pins 4a are designed to become higher toward the outer side of the radial direction from the optical axis X.
Inventors:
HATTA SADAHARU
KOIKE YOSUKE
KOIKE YOSUKE
Application Number:
JP2012280533A
Publication Date:
July 07, 2014
Filing Date:
December 25, 2012
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD
International Classes:
F21V5/00; F21S2/00; F21S8/10; F21V5/04; F21W101/10; F21Y101/02
Attorney, Agent or Firm:
Ryoichi Yamashita