Arc tube and shroud holder

(19)

(11)

EP 1 772 888 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	20.06.2012 Bulletin 2012/25

(43)	Date of publication A2:
	11.04.2007 Bulletin 2007/15

(21)	Application number: 06121734.5

(22)	Date of filing: 04.10.2006

(51)

International Patent Classification (IPC):

H01J 5/48^(2006.01)
H01J 61/50^(2006.01)

H01J 61/34^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

(30)

Priority:

06.10.2005 US 724043 P
05.07.2006 US 481145

(71)	Applicant: OSRAM-SYLVANIA INC.
	01923 Danvers, MA (US)

(72)	Inventors:
	Kingston, Richard A. Beverly, MA 01915 (US) McCullough, Ebon L. New Ipswich, NH 03071 (US) Provost, Karen Manchester, NH 03103 (US) Wyner, Eliott F. Peabody, MA 01960 (US)

(74)	Representative: Raiser, Franz
	Osram GmbH Postfach 22 16 34 80506 München 80506 München (DE)

(54)	Arc tube and shroud holder

(57) A holder (50) for an arc tube-shroud assembly comprises: a planar disc (54) having a plurality of shroud-holding arms (56) peripherally spaced about the disc and extending in a first direction. At least two arc tube holding arms (60,60a) extend in an opposite direction (62) for positioning an arc tube laterally within a shroud; and at least one arc tube locking tab (64) extends in the opposite direction (60) for positioning the arc tube axially within the shroud. The planar disc (54) is provided with a plurality of venting apertures (82) sized to allow egress of pressurized gases but inhibit passage of axially-propelled arc tube shards in the event of a non-passive failure of an arc tube.

Search report