EP0066495B1 - Lampe à décharge du type tube à cathode froide courbé selon deux nappes - Google Patents

Lampe à décharge du type tube à cathode froide courbé selon deux nappes Download PDF

Info

Publication number
EP0066495B1
EP0066495B1 EP82400898A EP82400898A EP0066495B1 EP 0066495 B1 EP0066495 B1 EP 0066495B1 EP 82400898 A EP82400898 A EP 82400898A EP 82400898 A EP82400898 A EP 82400898A EP 0066495 B1 EP0066495 B1 EP 0066495B1
Authority
EP
European Patent Office
Prior art keywords
tube
discharge lamp
bent
sheet
lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82400898A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0066495A3 (en
EP0066495A2 (fr
Inventor
Raymond Desplat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT82400898T priority Critical patent/ATE21187T1/de
Publication of EP0066495A2 publication Critical patent/EP0066495A2/fr
Publication of EP0066495A3 publication Critical patent/EP0066495A3/fr
Application granted granted Critical
Publication of EP0066495B1 publication Critical patent/EP0066495B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/16—Vessels; Containers

Definitions

  • the present invention relates to a discharge lamp known as a cold cathode tube, with gas filling of the type consisting of a small diameter tube comprising at its two ends electrodes between which the high voltage discharge occurs.
  • Tubes of this kind are currently used routinely for the production of letters for illuminated signs and their use is tending to develop also as light sources for various traffic lights. Indeed, these high voltage tubes have greater reliability than the incandescent lamps usually used in said signaling lights and a much longer service life.
  • these tubes have other advantages such as an excellent yield in coloring and in brightness and the absence of focusing optics.
  • the tube is shaped for its useful front part in the form of a meander or a spiral in a plane and the end bulbs containing the electrodes are bent behind the end of the useful front part of the tube.
  • the tubes being bent in a meander or wound in a spiral according to a ply in a plane and the manufacturing techniques obliging, in the case of a meander in particular, to maintain a minimum radius of curvature of the tube which is hardly less than half the diameter, the parallel branches of the meander are spaced at least half a diameter and most often the diameter, this spacing is also necessary for cooling.
  • the length of tube which can be accommodated in a given lamp surface is reduced and that miniaturized discharge lamps have a reduced lifetime compared to that of very long tubes. This problem is encountered in the case of miniaturized discharge lamps for repeating lights and so-called pedestrian lights, signaling lights as well as for various special purpose lamps.
  • the present invention aims to remedy these drawbacks and it relates to a discharge lamp of the cold cathode tube type, characterized in that the tube of circular section is, between the two electrodes, bent or curved according to two layers located in two close parallel planes, the layout of the tube in one layer being intercalated with the layout of the tube in the other layer.
  • the length of the tube being substantially equal to twice the length of the tube in a single ply of equivalent lamp surface, the life of the lamp is increased.
  • the second ply of the tube is substantially in the same plane as said bulbs so that the overall thickness of the lamp is not substantially amended.
  • the tube can be bent or bent in double meander or in double spiral but it is preferable in the case of a rectangular surface lamp to bend it in a flattened serpentine, the straight lengths of the tube joined by elbows in the oblique planes being located alternately in the front and in the rear.
  • the reference 1a designates the tube in the upper ply and the reference 1b the tube in the lower ply, 2 the bent parts joining parts of the tube lying in the two plies, 3a and 3b the bent parts joining the tube parts respectively located both in the upper ply and both in the lower ply and 4 designates the bulbs containing the electrodes.
  • lengths of tube 1a and 1b arranged in the two upper and lower plies succeed each other by being joined by bent portions 2, the bulbs 4 being placed at two ends of the surface.
  • lengths of tube 1a joined by bent parts 3a follow one another in the upper ply, the length of tube 1a being on one edge of the ply being joined to the neighboring length 1b in the other ply by a bent part 2, said length 1b being joined to the other lengths 1b of the lower ply by bent parts 3b.
  • the two bulbs 4 are located on the same side of the surface of the lamp.
  • the tube parts 1 a and 1 b are bent in a spiral and joined in the center by a bent part 2.
  • the bulbs 4 are placed at the free ends of the tube.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
EP82400898A 1981-05-26 1982-05-14 Lampe à décharge du type tube à cathode froide courbé selon deux nappes Expired EP0066495B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82400898T ATE21187T1 (de) 1981-05-26 1982-05-14 In zwei ebenen gebeugte entladungslampe mit kalter kathode.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8110419A FR2507011A1 (fr) 1981-05-26 1981-05-26 Lampe a decharge du type tube a cathode froide courbe selon deux nappes
FR8110419 1981-05-26

Publications (3)

Publication Number Publication Date
EP0066495A2 EP0066495A2 (fr) 1982-12-08
EP0066495A3 EP0066495A3 (en) 1983-08-03
EP0066495B1 true EP0066495B1 (fr) 1986-07-30

Family

ID=9258892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400898A Expired EP0066495B1 (fr) 1981-05-26 1982-05-14 Lampe à décharge du type tube à cathode froide courbé selon deux nappes

Country Status (6)

Country Link
EP (1) EP0066495B1 (enrdf_load_stackoverflow)
AT (1) ATE21187T1 (enrdf_load_stackoverflow)
CA (1) CA1192597A (enrdf_load_stackoverflow)
DE (1) DE3272290D1 (enrdf_load_stackoverflow)
ES (1) ES272873Y (enrdf_load_stackoverflow)
FR (1) FR2507011A1 (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154405B (en) * 1984-01-10 1987-07-01 Thorn Emi Domestic Appliances Heating apparatus
US5536999A (en) * 1994-12-02 1996-07-16 Winsor Corporation Planar fluorescent lamp with extended discharge channel
US5705883A (en) * 1995-03-31 1998-01-06 General Electric Company Reduced length compact fluorescent lamp and method of forming same
GB9601418D0 (en) * 1996-01-24 1996-03-27 England Paul Lighting device
US5914560A (en) * 1997-09-30 1999-06-22 Winsor Corporation Wide illumination range photoluminescent lamp
US5903096A (en) * 1997-09-30 1999-05-11 Winsor Corporation Photoluminescent lamp with angled pins on internal channel walls
US6127780A (en) * 1998-02-02 2000-10-03 Winsor Corporation Wide illumination range photoluminescent lamp
US6075320A (en) * 1998-02-02 2000-06-13 Winsor Corporation Wide illumination range fluorescent lamp
US6091192A (en) * 1998-02-02 2000-07-18 Winsor Corporation Stress-relieved electroluminescent panel
US6114809A (en) * 1998-02-02 2000-09-05 Winsor Corporation Planar fluorescent lamp with starter and heater circuit
US6100635A (en) * 1998-02-02 2000-08-08 Winsor Corporation Small, high efficiency planar fluorescent lamp
US6762556B2 (en) 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
US7121681B2 (en) * 2003-10-10 2006-10-17 Honeywell International, Inc. Compact high-brightness fluorescent lamp system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473878A (en) * 1947-11-25 1949-06-21 Gen Electric Electric lamp of double spiral convolution
US2743388A (en) * 1953-09-08 1956-04-24 Samuel C Bartley Electric lamp
NL98672C (enrdf_load_stackoverflow) * 1958-09-05
FR1464022A (fr) * 1965-11-16 1966-07-22 Pat & Visseaux Claude Dispositif pour le balisage lumineux

Also Published As

Publication number Publication date
ES272873Y (es) 1984-04-16
CA1192597A (en) 1985-08-27
ATE21187T1 (de) 1986-08-15
EP0066495A3 (en) 1983-08-03
ES272873U (es) 1983-11-01
FR2507011A1 (fr) 1982-12-03
EP0066495A2 (fr) 1982-12-08
FR2507011B1 (enrdf_load_stackoverflow) 1985-05-03
DE3272290D1 (en) 1986-09-04

Similar Documents

Publication Publication Date Title
EP0066495B1 (fr) Lampe à décharge du type tube à cathode froide courbé selon deux nappes
JP2008547175A (ja) 光偏向領域を有する光導波体
FR2537340A1 (fr) Lampe a decharge
GB2198516A (en) Luminaire
US5675215A (en) Compact fluorescent lamp having a helical lamp envelope and an efficient mounting arrangement therefor
US6739737B2 (en) Lamp body for a fluorescent compact spot and flood light source
EP0318390B1 (fr) Appareil émetteur d'un rayonnement électromagnétique, notamment infrarouge comportant une source plane de rayons et un réflecteur
WO2019023821A1 (zh) 一种带自成型led光源的灯泡
FR2517806A1 (fr) Reflecteur
HK91693A (en) Compact low-pressure discharge lamp
EP0911574B1 (fr) Diffuseur de feux de signalisation de véhicules
FR2708081A1 (fr) Feu de signalisation de véhicules automobiles.
WO2004084258A3 (en) An electric incandescent lamp with infrared reflecting layer
AU741688B2 (en) Tube, device and method for emitting electromagnetic radiation
JPS58112238A (ja) けい光ランプ
FR2795232A1 (fr) Lampe pour projecteur muni d'un reflecteur
CN1409362A (zh) 一种具有改进的光分布特性的放电灯
JPS6041750A (ja) 信号装置
NL2024989B1 (en) Double ended internal reflector lamp with aligned press-sealed end connectors relative to a reflective glass bulb portion.
US7121681B2 (en) Compact high-brightness fluorescent lamp system
JPS61225707A (ja) 照明装置
JP2004158319A (ja) 白熱電球
KR200321043Y1 (ko) 빛 확산램프 및 빛 확산램프를 이용한 광고간판
US8110969B2 (en) Gas-discharge reflector lamp
CN1395282A (zh) 四管紧凑的荧光灯

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840131

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19860730

REF Corresponds to:

Ref document number: 21187

Country of ref document: AT

Date of ref document: 19860815

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19860731

REF Corresponds to:

Ref document number: 3272290

Country of ref document: DE

Date of ref document: 19860904

ITF It: translation for a ep patent filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920526

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19930415

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930531

Ref country code: CH

Effective date: 19930531

EPTA Lu: last paid annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940514

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19970424

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970717

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980505

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980514

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990514

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990514

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010427

Year of fee payment: 20

BE20 Be: patent expired

Free format text: 20020514 *DESPLAT RAYMOND