LED illumination lamp device

• US 7,690,813 B2
• Filed: 05/02/2006
• Issued: 04/06/2010
• Est. Priority Date: 05/02/2005
• Status: Active Grant

• Current Assignee: Citizen Electronics Company Limited
• Original Assignee: Citizen Electronics Company Limited
• Inventors: Imai, Sadato, Kanamori, Masayoshi
• Primary Examiner(s): Payne; Sharon E
• Assistant Examiner(s): Gramling; Sean P
• Application Number:
  US11/415,414
• Publication Number:
  US 20060256557A1
• Time in Patent Office: 1,435 Days
• Field of Search: 36224901-24904, 362/227, 362/235, 362/252, 362/240, 362/373, 362/294, 362/547, 362/345, 361/704, 361/707, 361/719, 361/720, 361/725
• US Class Current: 362/249.02
• CPC Class Codes: F21K 9/60 Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED illumination lamp device, including a polygonal-prism-shaped supporting member having a plurality of rectangular side surfaces, plate-like wing members configured to project outwardly from each of ridge lines formed by two adjacent rectangular side surfaces of the supporting member and having at least two opposing rectangular surfaces, and a plurality of LED elements disposed on the rectangular side surfaces of the supporting member and the rectangular surfaces of the wing members.

Claims

1. A light-emitting diode illumination lamp device, comprising:

a supporting member that is of a polygonal prism shape and has a plurality of rectangular planar surfaces at a peripheral side surface of the supporting member,

the supporting member further including plate-like members each projecting outwardly from each of ridge lines formed by two adjacent rectangular planar surfaces of the supporting member and each of the plate-like members having two opposite rectangular planar surfaces; and

a plurality of light-emitting diode units, each of which has three faces each disposed on one of the rectangular planar surfaces at the peripheral side surface of the supporting member and two opposite rectangular planar surfaces that are disposed at both sides of the one of the rectangular planar surfaces, the each of the light-emitting diode units including a base with three rectangular-shaped faces made of a metallic material having a high heat conductivity and, lower surfaces of which are provided on each of the one of the rectangular planar surfaces and the two opposite rectangular planar surfaces that are disposed at both sides of the one of the rectangular planar surfaces, a flexible circuit substrate including three faces and three elongate holes each provided at each of the three faces and passing through the flexible board, and the three faces of the flexible circuit substrate disposed on three-rectangular shaped faces of the base, the flexible circuit substrate including a pair of electrodes provided at one end portion of the flexible circuit substrate, a plurality of light-emitting diode elements arranged on the upper surfaces of the three rectangular-shaped faces of the base in the three elongate holes of the flexible circuit substrate, and the light-emitting diode elements electrically connected to the pair of terminal electrodes.

2. The light-emitting diode illumination lamp device according to claim 1,

wherein first and second faces of the three rectangular-shaped faces of the base are disposed at both sides of a third face of the thee rectangular-shaped faces of the base, and the first and second faces are disposed at an angle relative to the third face, respectively.

3. The light-emitting diode illumination lamp device according to claim 2,

wherein the angle is 45 degrees.