Title (en)

Low wattage single ended high-pressure discharge lamp with anti-burst envelopes

Title (de)

Einseitig gesockelte Hochdruckentladungslampe niederer Leistung mit Berstschutzkolben

Title (fr)

Lampe haute pression à basse puissance, avec culot unique et enveloppes protéctrices

Publication

EP 2175475 A3 20100929 (DE)

Application

EP 09171352 A 20090925

Priority

DE 202008013506 U 20081010

Abstract (en)

[origin: EP2175475A2] The lamp i.e. metal halide lamp (10), has an inner bulb (7) whose effective axial length (HE) is defined without ends. Subsequent geometrical relations based on the length conform to volume of a hollow cylinder extending between the inner bulb and an outer bulb (3). The volume is in the range of 8 to 15 cubic centimeters. The geometrical relations conform to an impact quality defined as a product of an inner width (LW) between the bulbs and square of wall thickness (WD) of the outer bulb. The impact quality is less than 8 cubic millimeter.

IPC 8 full level

H01J 61/34 (2006.01); H01J 61/50 (2006.01)

CPC (source: EP US)

H01J 61/34 (2013.01 - EP US); H01J 61/50 (2013.01 - EP US); H01J 61/82 (2013.01 - EP US)

Citation (search report)

• [XD] EP 1763066 A1 20070314 - MATSUSHITA ELECTRIC IND CO LTD [JP]
• [A] WO 2007139058 A1 20071206 - MATSUSHITA ELECTRIC IND CO LTD [JP], et al & EP 2031636 A1 20090304 - PANASONIC CORP [JP]
• [A] DE 3129329 A1 19830210 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

DE 202008013506 U1 20090108; CN 101728217 A 20100609; EP 2175475 A2 20100414; EP 2175475 A3 20100929; JP 2010092865 A 20100422; US 2010090600 A1 20100415; US 8018157 B2 20110913

DOCDB simple family (application)

DE 202008013506 U 20081010; CN 200910179361 A 20091010; EP 09171352 A 20090925; JP 2009236079 A 20091013; US 57554509 A 20091008