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US 2015/0146419 A1Published application
Lamp tube
AssigneeLextar Electronics Corporation
InventorJiun-Shi HUANG
Life of this patent
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Abstract
A lamp tube is provided, including a cover, a heat sink, a reflecting structure, a light bar, and a driving circuit. The cover is joined with the heat sink to form a tube body. The heat sink includes a first portion and a second portion symmetrical to a reference plane. The reflecting structure is disposed above the second portion, wherein the reflecting structure and the second portion of the heat sink define a receiving space with the driving circuit disposed therein. The light bar is disposed on the first portion of the heat sink.
Claims13
A lamp tube, comprising:
- a cover;
- a heat sink, joined with the cover to form a tube body extended along a first direction, wherein the heat sink includes a first portion and a second portion substantially symmetrical to a reference plane that is parallel to the first direction and intersects both the cover and the heat sink;
- a reflecting structure, disposed above the second portion of the heat sink, comprising:
- a reflecting surface, tilted with respect to the reference plane at a first angle;
- a first extended wall, connected to a joint between the first and second portions;
- and
- a second extended wall, connected to an edge of the second portion that is distant from the first portion;
- wherein the reflecting structure and the second portion of the heat sink define a receiving space;
- a light bar, disposed on the first portion of the heat sink, wherein a normal line of the light bar is tilted with respect to the reference plane at a second angle;
- and
- a driving circuit, disposed in the receiving space.
8 more elements
Dependencies are inferred from the claim text.