Microwave powered lamp having a non-conductive reflector within the microwave cavity

A microwave powered lamp comprising:

• a source of microwave power;
• a cylindrical microwave cavity, said cavity having an axis defined by a first cup-shaped member having solid cylindrical walls and a second cup-shaped member having cylindrical mesh walls adapted to retain microwaves and pass light;
• coupling means mounted on said first cup-shaped member for coupling microwave energy from said source of microwave power to said cavity;
• a discharge envelope mounted within said cavity on the axis thereof;
• rotationally symmetrical first reflector means mounted outside said cavity for reflecting light emitted from said envelope, said first reflector means having an axis substantially coincident with the axis of said cavity;
• and,
• non-conductive second reflector means mounted within said cavity for reflecting light toward said second cup-shaped member.

A microwave electroless lamp comprising:

• a microwave generator;
• a microwave cavity;
• means for coupling microwave energy from said microwave generator to said cavity;
• an electrodeless discharge envelope disposed in said cavity, said envelope containing a discharge fill;
• a reflector mounted external to said cavity for reflecting light emitted by said envelope;
• and,
• a non-conductive reflector mounted internal to said cavity for reflecting light outwardly from said cavity.