Title:
A TUNGSTEN-HALOGEN QUARTZ LAMP
Document Type and Number:
WIPO Patent Application WO/2007/025458
Kind Code:
A1
Abstract:
A tungsten-halogen quartz lamp with a structure for preventing glass-bead supporter from breaking off, which can insure that its glass-bead supporter could not leave and drop from the top of a bulb in any case, so that reliability of a holding-filament structure is greatly improved and the service life of the lamp is prolonged.For this purpose, a concave-baking ring is provided at the circumference of the bulb, which corresponds to a position below the glass-bead supporter which is mounted in the upper of inner-cavity of the bulb in a horizontal direction, to restrict the glass-bead supporter to the upper of the bulb.
Inventors:
WEN DEBIAO (CN)
Application Number:
PCT/CN2006/002098
Publication Date:
March 08, 2007
Filing Date:
August 17, 2006
Export Citation:
Assignee:
WEN DEBIAO (CN)
International Classes:
H01K1/18
Foreign References:
| CN2720619Y | 2005-08-24 | |||
| CN2626047Y | 2004-07-14 | |||
| CN2609177Y | 2004-03-31 | |||
| GB1443542A | 1976-07-21 | |||
| US5821678A | 1998-10-13 |
Other References:
See also references of EP 1921666A4
Attorney, Agent or Firm:
LUNG TIN INTERNATIONAL INTELLECTUAL PROPERTY AGENTLTD. (Tower B Grand Place, No.5 Huizhong Roa, Chaoyang District Beijing 1, CN)
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