口金付高圧放電ランプ

Japanese Patent JP4342561

B2

The capped high pressure discharge lamp comprises a light source (1) having a lamp vessel (1') with a first neck shaped portion (2) to which a lamp cap (30) is fixed. A connection conductor (7) runs alongside the discharge vessel to connect a second current supply conductor (5) extending from a second neck shaped portion (3) to a second contact member (36) of the cap. The lamp vessel (1') is contained by a tubular outer envelope (20), which is filled with air and does not envelope the connection conductor (7). The outer envelope (20, 50) has a narrowing portion (21, 52, 51) which encloses the second current supply conductor (5) or a neck shaped (2, 3). The outer envelope is maintained. The lamp is of a simple construction which allows for optimizing the light output or the temperature of the lamp vessel.

Manfred Vestermayer
Ralph Scheffer
Leonardus Ulvanus Emile Koninhus

JP2007014912A

October 14, 2009

January 25, 2007

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Koninklijke Philips Electronics N.V.

H01J5/50; H01J5/54; H01J61/34; H01J5/56; H01J61/073; H01J61/12; H01J61/30; H01J61/36; H01J61/82

JP56149765A
JP61142660A
JP62283545A
JP63146341A
JP63190245A
JP63318065A
JP1100845A
JP1292740A
JP1302651A
JP2027653A
JP3034254A
JP3037951A
JP3064847A
JP3095850A
JP3233853A
JP4004555A
JP4032150A
JP4229942A
JP5006755A
JP5041198A
JP5074204A
JP5234568A
JP56062662U
JP60059461U
JP62062755U
JP3104949U
JP4035345U

US3867661
EP0321867A2
EP0465083A1
EP0478058A1
EP0481702A2
DE4112911A1

Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen

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