Patent ID: 9279561
Filing Date: 2016-03-08
CPC Classification: F21K,F21V,F21Y

Claim Text:
1. A light emitting diode (LED) lamp for replacing a linear fluorescent lamp, the LED lamp comprising: a lamp tube comprising: an LED array disposed adjacent to the third end of the inner tube wall; a waveguide disposed adjacent the first end and configured to reflect a portion of a light emitted from the LED array toward a space between the inner tube wall and the outer tube wall, wherein the space between the inner tube wall and the outer tube wall is hollow; a second LED array disposed adjacent to the fourth end of the inner tube wall; and a second waveguide disposed adjacent to the second end and configured to reflect a portion of light emitted from the second LED array toward the space between the inner tube wall and the outer tube wall, wherein the waveguide is conically shaped, wherein a first surface of the second waveguide is configured to reflect the portion of the light emitted from the second LED array toward a second surface of the second waveguide, and wherein the second surface of the second waveguide is configured to reflect the portion of the light emitted from the second LED array and reflected by the first surface of the second waveguide toward the space between the inner tube wall and the outer tube wall.