High pressure sodium lamp with a shielding member between two arc tubes
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01J-061/10
H01J-061/06
H01J-061/34
출원번호
US-0601441
(2008-05-23)
등록번호
US-8198814
(2012-06-12)
우선권정보
SE-0701251 (2007-05-24)
국제출원번호
PCT/SE2008/050611
(2008-05-23)
§371/§102 date
20100616
(20100616)
국제공개번호
WO2008/143587
(2008-11-27)
발명자
/ 주소
Werner, Björn
Severinsson, Mikael
출원인 / 주소
Auralight International AB
대리인 / 주소
Schwegman, Lundberg & Woessner, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
13
초록▼
The present invention relates to a high pressure sodium lamp comprising an evacuated cover including a base part, an arc tube comprising a first and a second electrode each being connected to the base part via conductor members. At least one conductor member is arranged isolated by a shielding membe
The present invention relates to a high pressure sodium lamp comprising an evacuated cover including a base part, an arc tube comprising a first and a second electrode each being connected to the base part via conductor members. At least one conductor member is arranged isolated by a shielding member for preventing, during operation of the high pressure sodium lamp, the photo electronic stream from the at least one conductor member to the arc tube. The lamp comprises a second arc tube.
대표청구항▼
1. A high pressure sodium lamp comprising: an evacuated cover including a base part,a first arc tube and a second arc tube each comprising a first electrode coupled to the base part by a first conductor member and a second electrode coupled to the base part by a second conductor member, the first ar
1. A high pressure sodium lamp comprising: an evacuated cover including a base part,a first arc tube and a second arc tube each comprising a first electrode coupled to the base part by a first conductor member and a second electrode coupled to the base part by a second conductor member, the first arc tube and the second arc tube mounted parallel with each other, the second conductor member symmetrically arranged between the first arc tube and the second arc tube and isolated by a shielding member, wherein the shielding member is a cylinder made of ceramic surrounding the second conductor member and having only the second conductor member within the cylinder, and wherein the shielding member is held in place on the second conductor member without the need of additional fittings,wherein the shielding member is arranged for preventing, during operation of the high pressure sodium lamp, the photo electronic stream from the second conductor member to the first arc tube and the second arc tube, andwherein the second conductor member lies in an intermediate plane, the intermediate plane extending between the first arc tube and the second arc tube such that a first line intercepting the second conductor member and a longitudinal center line of the first arc tube forms an angle alpha with the intermediate plane, and a second line intercepting the second conductor member and a longitudinal center line of the second arc tube forms an angle beta with the intermediate plane, wherein the angle alpha corresponds to the angle beta. 2. The high pressure sodium lamp according to claim 1, wherein the ceramic is steatite. 3. The high pressure sodium lamp according to claim 1, wherein the second conductor member serves as a mounting structure having a part abutting against a portion of the cover opposite from the base part. 4. The high pressure sodium lamp according to claim 1, wherein the first arc tube and the second arc tube include xenon under a gas pressure of about 120-150 mbar. 5. The high pressure sodium lamp according to claim 1, wherein at least one of the first arc tube and the second arc tube comprises xenon under a gas pressure of about 130-140 mbar. 6. The high pressure sodium lamp according to claim 1, wherein the shielding member is arranged parallel to the first arc tube and to the second arc tube, and with essentially the same extension as at least one of the first arc tube and the second arc tube. 7. A high pressure sodium lamp comprising: an evacuated cover including a base part, a first arc tube and a second arc tube each comprising a first electrode coupled to the base part by a first conductor member and a second electrode coupled to the base part by a second conductor member, the first arc tube and the second arc tube mounted parallel with each other, the second conductor member symmetrically arranged between the first arc tube and the second arc tube and isolated by a shielding member, wherein the shielding member is arranged for preventing, during operation of the high pressure sodium lamp, the photo electronic stream from the second conductor member to the first arc tube and the second arc tube, andwherein the second conductor member lies in an intermediate plane, the intermediate plane extending between the first arc tube and the second arc tube such that a first line intercepting the second conductor member and a longitudinal center line of the first arc tube forms an angle alpha with the intermediate plane, and a second line intercepting the second conductor member and a longitudinal center line of the second arc tube forms an angle beta with the intermediate plane, wherein the angle alpha corresponds to the angle beta. 8. The high pressure sodium lamp according to claim 7, wherein at the time of manufacture the, first arc tube has a first individual pressure within the first arc tube and the second arc tube has a second individual pressure within the second arc tube, the first individual pressure being unequal to the second individual pressure.
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이 특허에 인용된 특허 (13)
Kling Michael R. (Stratham NH) Gilligan ; III Thomas J. (Salisbury MA), Compact outer jacket for low wattage discharge lamp.
Alderman John C. (Corning NY) Bernard Kathleen P. (Painted Post NY) Dubowicz Louis B. (Bath NY) Putnam Edward A. (Campbell NY) King Norman (Hammondsport NY), Dual arc tube discharge lamp having a lamp frame with coplanar spot welds and slip-free construction.
Feuersanger Alfred E. (Framingham MA) Riseberg Leslie A. (Sudbury MA) McNeill William H. (Carlisle MA), High pressure discharge lamps with fast restart.
Fellows Mark W. (New Fairfield CT) Jackson Andrew D. (Hammondsport NY) Shumway Daniel H. (Watkins Glen NY), High pressure series arc discharge lamp construction with simplified starting aid.
Dolan Robert B. (Manchester NH) Young Paul A. (Weare NH) Otto Edward P. (Henniker NH), High pressure sodium arc discharge lamp with weldless arc tube support member.
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