LIGHTING DEVICE AND LIGHTING INSTRUMENT

• US 20120294007A1
• Filed: 05/16/2012
• Published: 11/22/2012
• Est. Priority Date: 05/17/2011
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: MATSUMOTO, Hiroyuki, Ootubo, Atusi, Kouno, Tadahiro, Matsuzaki, Jun, Yamashita, Koji, Minaki, Sinsuke
• Application Number:
  US13/472,787
• Publication Number:
  US 20120294007A1
• Time in Patent Office: Days
• US Class Current: 362/249.02
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 23/02 the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
• CPC Class Codes: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/44 with an active control inside an LED matrix
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A lighting device includes a plurality of LED light sources, an LED substrate mounted with the LED light sources, and at least one protector element mounted on the LED substrate to protect the LED light sources. The LED light sources are divided into a plurality of LED light source groups. The protector element is arranged in at least one of the LED light source groups while being electrically connected to the LED light sources of each of the LED light source groups.

Claims

1. A lighting device, comprising:

a plurality of LED light sources;

an LED substrate mounted with the LED light sources; and

at least one protector element mounted on the LED substrate to protect the LED light sources,

wherein the LED light sources are divided into a plurality of LED light source groups, and the protector element is arranged in at least one of the LED light source groups while being electrically connected to the LED light sources of each of the LED light, source groups.

2. The device of claim 1, wherein the LED light sources and the protector elements are arranged substantially on one straight line, each of the protector elements being electrically connected to upstream and downstream sides of each of the LED light source groups.

4. The device of claim 1, wherein the LED light sources and the protector elements are arranged substantially on one straight line, each of the protector elements being arranged between the straight line and one of lateral surfaces of the LED substrate at the opposite side from connection portion of the LED light sources adjacent thereto.

6. A lighting instrument comprising the lighting device of claim 1.

7. A lighting instrument comprising the lighting device of claim 2.

9. A lighting instrument comprising the lighting device of claim 4.

3. A lighting device, comprising:

a plurality of LED light sources;

an LED substrate mounted with the LED light sources; and

a plurality of protector elements mounted on the LED substrate to protect the LED light sources,

wherein each of the LED light sources and the corresponding protector element is combined into a source-element set, and the source-element sets are arranged substantially on one straight line, each of the protector elements being arranged between the LED light sources of the adjacent source-element sets.

5. The device of claim 3, wherein the LED light sources and the protector elements are arranged substantially on one straight line, each of the protector elements being arranged between the straight line and one of lateral surfaces of the LED substrate at the opposite side from connection portion of the LED light sources adjacent thereto.

8. A lighting instrument comprising the lighting device of claim 3.

10. A lighting instrument comprising the lighting device of claim 5.