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LED tube lamp

DC CAFC
  • US 10,426,003 B2
  • Filed: 02/05/2018
  • Issued: 09/24/2019
  • Est. Priority Date: 09/28/2014
  • Status: Active Grant
First Claim
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1. An LED tube lamp, comprising:

  • a tube having two ends;

    two end caps respectively at the ends of the tube, each of the end caps comprising;

    a lateral wall substantially coaxial with the tube;

    an end wall substantially perpendicular to an axial direction of the lateral wall; and

    at least one opening penetrating through the end wall, wherein an axial direction of the at least one opening is substantially parallel with an axial direction of the lateral wall;

    a power supply in one or both of the end caps;

    an LED light strip in the tube; and

    a plurality of LED light sources on the LED light strip, the LED light sources electrically connected to the power supply via the LED light strip;

    wherein an end wall radius “

    r”

    is defined as the shortest distance between the center of the end wall and the periphery of the end wall, a distance “

    L”

    is defined as the shortest distance between the center of the end wall and the opening in the radial direction of the end cap, and the distance “

    L”

    is a ratio from 2/5 to 4/5 of the end wall radius “

    r”

    .

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