TWD132817S1 - Light emitting semiconductor device - Google Patents

Abstract

[Purpose of the article] The article of this creation is a semiconductor light-emitting element, such as a straight tube LED lamp that uses LED as a light source to replace a straight tube fluorescent lamp. [Features of the creation] As shown in the enlarged cross-sectional views A-A and B-B, this article has: a substrate 1, a heat dissipation component 2, a plurality of LEDs 3, and a diffusion tube 4; the substrate 1 is a long rectangular shape when viewed in a plan view, and has a wiring pattern on the surface that is conductive to the plurality of LEDs 3, and the heat dissipation component 2 is a long rectangular shape when viewed in a plan view, and holds the substrate 1 on the surface; the heat dissipation component 2 has a plurality of plate portions 2A arranged parallel to each other on the bottom side; the end of the central plate portion 2A among the plurality of plate portions 2A is formed with a ring portion 2B. A notch portion 2C is formed in the annular portion 2B; a plurality of LEDs 3 are arranged along the length direction of the substrate 1; the diffusion tube 4 is formed into a straight tube shape by covering the heat dissipation component 2 with a translucent material in order to diffuse the light from the plurality of LEDs 3 and illuminate a wider range; the diffusion tube 4 has a plurality of openings 4A arranged along the length direction on the bottom side; as shown in the enlarged view of the C-C' part, a portion of the plurality of plate portions 2A and a portion of the annular portion 2B are exposed from each opening 4A.