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1. (WO1985004546) ENERGY EFFICIENT INCANDESCENT LAMP WITH IMPROVED FILAMENT CHARACTERISTICS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1985/004546 International Application No.: PCT/US1984/000442
Publication Date: 10.10.1985 International Filing Date: 23.03.1984
IPC:
H01K 1/32 (2006.01) ,H01K 1/46 (2006.01) ,H01K 1/62 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
K
ELECTRIC INCANDESCENT LAMPS
1
Details
28
Envelopes; Vessels
32
provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
K
ELECTRIC INCANDESCENT LAMPS
1
Details
42
Means forming part of the lamp for the purpose of providing electrical connection to, or support for, the lamp
46
supported by a separate part, e.g. base, cap
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
K
ELECTRIC INCANDESCENT LAMPS
1
Details
62
One or more circuit elements structurally associated with the lamp
Applicants:
DURO-TEST CORPORATION [US/US]; 2321 Kennedy Boulevard North Bergen, NJ 07047, US
Inventors:
KAUSMAN, Rudolph; US
THOURET, Wolfgang, E.; US
Agent:
COPLEIN, Gordon, D. @; Darby & Darby 405 Lexington Avenue New York, NY 10174, US
Priority Data:
Title (EN) ENERGY EFFICIENT INCANDESCENT LAMP WITH IMPROVED FILAMENT CHARACTERISTICS
(FR) LAMPE A INCANDESCENCE A HAUT RENDEMENT ENERGETIQUE AVEC AMELIORATION DES CARACTERISTIQUES DU FILAMENT
Abstract:
(EN) An energy-efficient incandescent lamp has a transparent heat mirror coating (4) placed on the envelope (2). A diode (30) is connected in series with the filament (6). This reduces the voltage across the filament and increases the current passing through it, so that shorter and greater diameter filament wire is used. This makes a stronger filament than is used in a conventional incandescent lamp with no diode, and makes the filament more resistant to displacement by mechanical forces.
(FR) Une lampe à incandescence à haut rendement énergétique comporte un revêtement réflecteur thermique transparent (4) placé sur l'enveloppe (2). Une diode (30) est connectée en série avec le filament (6), ce qui réduit la tension à travers le filament et augmente le courant qui le traverse, si bien qu'un fil de filament plus court et de diamètre plus grand est utilisé. Ce filament est donc plus solide que celui qui est utilisé dans une lampe à incandescence conventionnelle sans diode et il est plus résistant aux déplacements par des forces mécaniques.
Designated States: AU, JP
European Patent Office (AT, BE, CH, DE, FR, GB, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0175686AU1984028190