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LED tube light with diffusion layer

  • US 9,851,073 B2
  • Filed: 05/30/2015
  • Issued: 12/26/2017
  • Est. Priority Date: 04/02/2015
  • Status: Active Grant
First Claim
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1. An LED tube light, comprising:

  • a plurality of LED light sources;

    an end cap;

    a light tube, having a first end attached to the end cap; and

    a diffusion film layer,wherein the diffusion film layer is disposed above the LED light sources so that light emitted from the LED light sources is transmitted through the diffusion film layer and the light tube; and

    an optical diffusion coating having an outer surface and coated on an outer surface of a rear end region of the first end of the light tube, wherein;

    a hot melt adhesive is bonded to the outer surface of the optical diffusion coating, andan increased frictional resistance is generated between the end cap and the light tube due to the presence of the optical diffusion coating when compared to the frictional resistance between the end cap and the light tube without any optical diffusion coating.

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