| 摘要 |
An illuminating device structure has heat dissipating base 10, a circuit board 20 on a face of the base 10, and at least one naked die, high-powered LED 30 on the circuit board 20. A hollow cover 40 on the base 10 covers the LED die 30. A phosphor layer 50 is coated on an interior wall of the cover 40. A space exists between the phosphor layer 50 and the LED die 30. The space in the cover 40 may be a vacuum or have a gas. The cover 40 may be spherical, oval or tubular in shape. |
