公开(公告)号：AU1964497A

公开(公告)日：1997-09-16

申请号：AU1964497

申请日：1997-02-20

Applicant: ILLUMINATION TECHNOLOGY INC

Inventor： RAGSDALE CHARLES R ,  HARTLEY JOHN B

IPC: H01K1/18

Abstract: A subminiature incandescent lamp has a substantially cylindrical base to which a glass envelope enclosing the interior of the lamp is sealed. A pair of contact wires or pins are made of a metal alloy that has substantially the same thermal expansion coefficient as the glass base. The contact pins are embedded and sealed to the glass base in a gas-tight manner, with a glass-to-metal seal. The contact pins extend below the base to provide external connections of the lamp to a power source. The pins also extend into the interior of the lamp, and provide electrical contact to a filament which is mounted between them. A filament support wire is anchored in the glass base at one end thereof and has a loop at its other end in which the mid-section of the filament rests and is mechanically supported.