LED lighting devices and LED lighting fixtures

The LED lighting device's frame design with protruding and side plate portions addresses the issue of darkening at the cover member ends, ensuring a uniform light distribution and improved appearance.

JP7863739B2Active Publication Date: 2026-05-22PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Filing Date
2024-04-25
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Conventional LED lighting devices experience darkening at the widthwise ends of the cover member due to protruding frame portions, which affect the lighting fixture's appearance.

Method used

The LED lighting device incorporates a frame design with protruding portions on both sides of the main plate projecting toward the light-emitting direction and side plate portions extending outward, ensuring the side plate tips overlap with the recess side when viewed from the short direction, thereby preventing darkening at the cover member ends.

Benefits of technology

This configuration effectively suppresses darkening at the widthwise ends of the cover member, enhancing the aesthetic appeal of the LED lighting fixture.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide an LED illuminating device that can restrain end parts in a width direction of a cover member from becoming dark.SOLUTION: An LED illuminating device 3 is housed in a concave part 2a of an appliance body 2, and comprises a board 11 on which an LED 12 is arranged, a frame 20 comprising a main plate part 21 fitted with the board 11, and a cover member 30 fitted to the frame 20. The frame 20 comprises: protruding parts 22 located on both sides of the main plate part 21, and protruding toward the side of a first direction from the main plate part 21; and side plate parts 23 located closer to an outside in a short direction of the frame 20 than the protruding parts 22, and extending on a side of a second direction. Tips of the side plate parts 23 are located closer to the side of the second direction than the main plate part 21. When viewed from the short direction of the frame 20, the side plate parts 23 overlap with side surfaces of the concave part 2a.SELECTED DRAWING: Figure 3
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