COMPACT SELFBALLASTING FLUORESCENT LAMP AND LIGHTING SYSTEM

PROBLEM TO BE SOLVED: To provide a compact selfballasting fluorescent lamp improving luminous flux build up characteristics by a simple constitution even when an amalgam for mercury vapor pressure control is sealed. SOLUTION: The tip 52a of a capillary 52 extruding from the end of a bulb 51 is exten...

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Bibliographic Details
Main Author IKEDA TOSHIYUKI
Format Patent
LanguageEnglish
Published 19.02.2004
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
BLASTING
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
HEATING
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED
LIGHTING
MECHANICAL ENGINEERING
NON-PORTABLE LIGHTING DEVICES
SYSTEMS THEREOF
VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a compact selfballasting fluorescent lamp improving luminous flux build up characteristics by a simple constitution even when an amalgam for mercury vapor pressure control is sealed. SOLUTION: The tip 52a of a capillary 52 extruding from the end of a bulb 51 is extended to a portion on a base 11 side, brought into contact with a cover body 10 where a temperature is relatively low during lighting to prevent the tip of the capillary 52 from the thermal influence of a bulb 51 where a temperature becomes highest during lighting, the tip is kept in a relatively low temperature state, and damage to light output characteristics attendant on an increase in mercury vapor pressure is suppressed, an increase in mercury vapor pressure in a temperature state in light-out is made possible, and luminous flux build up characteristics immediately after lighting is enhanced. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020209876