Title:
BASELESS BULB
Document Type and Number:
Japanese Patent JP3512499
Kind Code:
B2
Abstract:
PURPOSE: To provide a baseless bulb having highly reliable earthquake proofing property by imparting a distortion absorbing or dispersing function to a lead wire in the area between a bridge glass member and a crushed sealed part.
CONSTITUTION: The length of lead wires 9a, 9b in the area corresponding to a glass member 11 are set longer than the glass member 11 the top end part of which is fused and connected to a bridge glass member 10 for fixing and holding the space between the lead wires 9a, 9b to loosen the lead wires 9a, 9b. The function for easily absorbing a distortion is imparted by the loosened (curved) parts 9a, 9b. Thus, the distortion is moderated, and the breakage of a baseless bulb resulted from the accumulation of distortion can be solved.
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Inventors:
Kawamata, Ryuzo
Application Number:
JP32036494A
Publication Date:
March 29, 2004
Filing Date:
December 22, 1994
Export Citation:
Assignee:
HARRISON DENKI KK
International Classes:
H01K1/22; H01K1/44; H01K3/20; (IPC1-7): H01K1/22; H01K1/44; H01K3/20
Attorney, Agent or Firm:
須山 佐一