| 摘要 |
An electrodeless induction lamp is provided to easily radiate operation heat of the electrodeless lamp by exposing a radiating member formed on a load in air. An electrodeless induction lamp includes an envelope(101), a magnetic material(102), a load(104), and a lamp base(105). A fluorescent material is applied on an inner wall of the envelope. A cylindrical discharge tube is formed in the envelope. The magnetic material is inserted into the discharge tube. A coil is wound around the magnetic material. The load includes a coupling portion and a support portion. The magnetic material is arranged in the coupling portion. The support portion supports the coupling portion. The lamp base is coupled with the support portion and supports the load and the envelope. The coupling portion includes a radiating member, which is elongated from the coupling portion. An external surface of the radiating member is formed to be exposed into a space between the discharge tube and the magnetic material. Plural guide grooves for a coil are formed on an outer surface of the radiating member.
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