Sunlight-type LED lamp tube lamp cover
A LED tube and daylight-type technology, applied in the field of lighting, can solve the problems of poor light transmittance, unreasonable design, and poor output light efficiency of the lampshade, and achieve the effects of discrete light angles, elimination of glare defects, and uniform light output
Inactive Publication Date: 2015-07-15
厦门晖朗光电有限公司
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Problems solved by technology
However, the design is unreasonable, especially the light transmittance of the small facets of the lampshade is poor, and the total reflection is serious, resulting in poor light output and reduced brightness.
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[0019] Reference figure 1 with figure 2 , Daylight-type LED tube lampshade, lampshade 1 is formed of transparent material and has an arc-shaped cross section. The arc-shaped structure means that the radius of the central area is large, and the radius of the areas on both sides gradually becomes smaller, forming a semi-circular arc or semi-elliptical The arc structure, of course, does not exclude the semi-circular arc or semi-elliptical arc structure; the lampshade 1 is formed with inward buckles 2 symmetrically on both sides, the outer surface of the lampshade 1 is smooth, and the inner surface is formed with densely arranged fine stripes 3 and fine stripes 3 The cross section is a concave arc structure to form a concave lens light diffusion mirror surface; the arc height of the thin stripe 3 is less than 0.3mm, and the radius is less than 0.6mm; more specifically, the arc surface of the thin stripe 3 on the inner surface of the lampshade 1 is double It is composed of arcs, bou...
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The invention relates to a sunlight-type LED lamp tube lamp cover which is formed by transparent materials. The section is of an arc structure. Buckling feet for locating are symmetrically formed at the two edges. The lamp cover is characterized in that the outer surface of the lamp cover is smooth, intensive-arrayed thin lines are formed on the inner surface of the lamp cover, the sections of the thin lines are of an arc down-concave structure, concave lens light dispersing mirror surfaces are formed, the thin line arc height is smaller than 0.3mm, and the radius is smaller than 0.6mm. The intensive-arrayed down-concave arc thin lines are formed on the inner surface of the lamp cover, the concave lens light dispersing mirror surfaces are formed, especially the asymmetric down-concave thin lines achieve light dispersing, light-emitting angles are dispersed, lamp cover surface light emitting is even, the shortcoming of LED light source dazzling is overcome, the lamp cover is of a semi-arc-similar or a semi-elliptic-arc-similar structure, and accordingly light intensity on the two sides is improved.
Description
Technical field: [0001] The invention belongs to the field of lighting, and particularly relates to an improvement of a daylight LED lampshade. Background technique: [0002] As we all know, the transparent lampshade has the highest light efficiency, but it can clearly see the light source. For high-brightness LED lamp beads, there are obvious shortcomings, which can easily cause visual damage and serious glare. For this reason, most LED light sources use frosted lampshades to achieve atomization and diffusion, so as to improve the light output angle and adjust the light uniformity. However, the design is unreasonable, especially the light transmittance of the tiny ridges of the lampshade is poor, and the total reflection is serious, resulting in poor emitted light efficiency and reduced brightness. How to design an LED lampshade that not only meets the needs of light diffusion, but also reduces the structure of total reflection, becomes the object of the present invention. Sum...
Claims
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IPC IPC(8): F21V3/00F21Y101/02F21Y115/10
Inventor 侯李群
Owner 厦门晖朗光电有限公司