| 摘要 |
An LED tube lamp includes a lamp tube 1, LED light sources 202 and end caps 3 attached over ends of the lamp tube. A diffusion film layer (13, Fig. 12) is disposed above the LED light sources so that light emitted from the LED light sources are transmitted through the diffusion film layer and lamp tube. The diffusion film layer 13 can also be an optical diffusion coating coated on a wall of the lamp tube1, and coated on an outer surface of a rear end region of the lamp tube. A hot melt adhesive may also be bonded to an outer surface of the optical diffusion coating to generate increased frictional resistance between the end cap 3 and the lamp tube 1. |
