Self-ballasted electrodeless discharge lamp and electrodeless discharge lamp

A self-ballasted electrodeless discharge lamp comprising:

• a discharge vessel having a cavity;
• an induction coil that is inserted into the cavity;
• a ballast for supplying power to the induction coil;
• a case for covering the ballast;
• and
• a lamp base provided in the case,
• wherein the discharge vessel is secured to the case via a holder,
• the induction coil includes a core and a winding;
• the holder has a cylindrical bobbin portion whose surface is wound with the winding and into which the core is inserted,
• a part of the discharge vessel and a first portion of the holder are engaged with each other to constitute a combination structure, and
• a second portion of the holder and a part of the case are engaged with each other to constitute a combination structure.

A self-ballasted electrodeless discharge lamp comprising:

• a discharge lamp having a cavity;
• an induction coil that is inserted into the cavity;
• a ballast for supplying power to the induction coil;
• a case for covering the ballast;
• and
• a lamp base provided in the case,
• wherein the discharge vessel is secured to the case via a holder,
• a part of the discharge vessel and a first portion of the holder are engaged with each other to constitute a combination structure,
• a second portion of the holder and a part of the case are engaged with each other to constitute a combination structure;
• and
• the holder has a circuit holder portion on which the ballast is placed.

An electrodeless discharge lamp comprising:

• a discharge vessel having a first shape in which a luminous material is enclosed;
• high frequency electromagnetic field generating means for generating discharge inside the discharge vessel,
• a holder having a second shape and a third shape, and
• a case having a fourth shape,
• wherein the electrodeless fluorescent lamp has a structure in which the first shape and the second shape are engaged, and a structure in which the third shape and the fourth shape are engaged.