Electrodeless discharge lamp
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKenji Itaya, Takeshi Arakawa, Toshiaki Kurachi, Kouji Miyazaki
Life of this patent
Estimating the term…
Abstract
An electrodeless discharge lamp with a first coupling member includes a translucent discharge vessel in which a discharge gas is enclosed. A bobbin that includes a coil holding part for an induction coil and a vessel mounting part with a second coupling member is formed as a single piece. The coil holding part holds the induction coil on an outer surface thereof and is placed in proximity to the discharge vessel. The first and second coupling members are complementary and engage to mount the discharge vessel on the vessel mounting part of the bobbin to assure a long life and a positioning accuracy of the discharge vessel and the induction coil thereof.
Claims15
An electrodeless discharge lamp comprising:
- a translucent discharge vessel in which a discharge gas is enclosed, the discharge vessel having a first coupling member;
- an induction coil;
- and
- a bobbin that includes a coil-holding part and a vessel-mounting part that are formed as a single piece, the vessel-mounting part having a second coupling member,
- wherein the coil-holding part holds the induction coil on an outer surface thereof, and is placed in a proximity of the discharge vessel, and the first coupling member and the second coupling member are coupled so as to mount the discharge vessel on the vessel-mounting part of the bobbin.
An electrodeless discharge lamp comprising:
- a translucent discharge vessel in which a discharge gas is enclosed, the discharge vessel having a first coupling member integrally formed as a set of a plurality of diametrically outwardly projecting protrusions;
- an induction coil;
- and
- a bobbin that includes a coil-holding part and a vessel-mounting part that are formed as a single piece, the vessel-mounting part having a second coupling member including a plurality of spaced overhanging walls, each wall of a configuration to engage a respective protrusion;
- wherein the coil-holding part holds the induction coil on an outer surface thereof, and is placed in a proximity of the discharge vessel, and the first coupling member and the second coupling member are coupled together so as to mount the discharge vessel on the vessel-mounting part of the bobbin.
Dependencies are inferred from the claim text.