LED lighting devices and LED lighting fixtures

The LED lighting device addresses the issue of darkening at the cover member ends by employing a frame design with inclined and parallel protrusions, ensuring even illumination and improved aesthetics.

JP7863753B2Active 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 and functionality.

Method used

The LED lighting device incorporates a frame design with protruding portions and side plate extensions that are inclined and parallel to the main plate, directing light emission away from the darkening areas, ensuring even illumination.

Benefits of technology

This design effectively suppresses darkening at the widthwise ends of the cover member, maintaining uniform light distribution and enhancing the overall lighting fixture's appearance and functionality.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide an LED illumination device and the like capable of inhibiting ends of a cover member in a width direction from being dark.SOLUTION: An LED illumination device comprises a substrate 11 on which an LED 12 is disposed, a frame 20 having a main plate part 21 to which the substrate 11 is attached, and a cover member 30 attached to the frame 20. The frame 20 has protruding parts 22 positioned at both sides of the main plate part 21 and protruding from the main plate part 21 toward a first direction side, and a side plate part 23 positioned outward of the protruding part 22 in the short direction of the frame 20 and extending to a second direction side. The protruding parts 22 have an inclined plate part inclined relative to the main plate part 21, and a parallel plate part located on the LED 12 side with respect to the inclined plate part and parallel to the main plate part 21. A tip of the side plate part 23, the main plate part 21, and an end of the inclined plate part on the side plate part 23 are disposed in this order toward the first direction side.SELECTED DRAWING: Figure 3
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