GB1509984A - Arc lamp including an electrode with recessed contact are - Google Patents
Arc lamp including an electrode with recessed contact areInfo
- Publication number
- GB1509984A GB1509984A GB13879/76A GB1387976A GB1509984A GB 1509984 A GB1509984 A GB 1509984A GB 13879/76 A GB13879/76 A GB 13879/76A GB 1387976 A GB1387976 A GB 1387976A GB 1509984 A GB1509984 A GB 1509984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- anode
- apex
- cathode
- arc 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
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/02—Details
- H05B31/06—Electrodes
- H05B31/14—Metal electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/02—Details
- H05B31/30—Starting; Igniting
- H05B31/305—Ignition devices
Landscapes
- Discharge Lamp (AREA)
Abstract
1509984 Discharge lamps VARIAN ASSOCIATES Inc 6 April 1976 [10 April 1975] 13879/76 Heading H1D In a movable-electrode arc lamp, particularly of the type disclosed in patent 1,461,448, in which disposed opposite a cathode 30 having an apex at its end portion 31 is a further electrode, as shown an anode 40, which has a recess 41 at its end, when the electrodes 30, 40 are caused to contact, Fig. 3, the cathode apex is received into the anode recess 41 such that no part of the apex is in contact sith the anode. This arrangement ensures that each time the arc lamp is started by first bringing the electrodes 30, 40 into contact, by energizing the solenoid 51 that moves the armature 53 attached to the anode 40; and then separating the electrodes, the cathode apex at the end of conical cathode tip 31 does not get damaged. In an alternative embodiment, Fig. 2 (not shown), the movable electrode is a so-called stinger electrode (40<1>) which is disposed coaxially within a fixed anode (60) and which is used solely for starting the lamp.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US56665175A | 1975-04-10 | 1975-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1509984A true GB1509984A (en) | 1978-05-10 |
Family
ID=24263816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13879/76A Expired GB1509984A (en) | 1975-04-10 | 1976-04-06 | Arc lamp including an electrode with recessed contact are |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS51133983A (en) |
| CH (1) | CH600731A5 (en) |
| DE (1) | DE2614150A1 (en) |
| FR (1) | FR2307372A1 (en) |
| GB (1) | GB1509984A (en) |
| IL (1) | IL49311A0 (en) |
| NL (1) | NL7603823A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006105073A3 (en) * | 2005-03-29 | 2008-04-17 | Hewlett Packard Development Co | Lamp assembly |
-
1976
- 1976-03-30 IL IL49311A patent/IL49311A0/en unknown
- 1976-04-02 DE DE19762614150 patent/DE2614150A1/en active Pending
- 1976-04-06 GB GB13879/76A patent/GB1509984A/en not_active Expired
- 1976-04-08 JP JP51038810A patent/JPS51133983A/en active Pending
- 1976-04-09 CH CH454676A patent/CH600731A5/xx not_active IP Right Cessation
- 1976-04-09 NL NL7603823A patent/NL7603823A/en unknown
- 1976-04-12 FR FR7610678A patent/FR2307372A1/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006105073A3 (en) * | 2005-03-29 | 2008-04-17 | Hewlett Packard Development Co | Lamp assembly |
| GB2438569B (en) * | 2005-03-29 | 2011-02-16 | Hewlett Packard Development Co | Lamp assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2614150A1 (en) | 1976-10-21 |
| IL49311A0 (en) | 1976-05-31 |
| FR2307372A1 (en) | 1976-11-05 |
| CH600731A5 (en) | 1978-06-30 |
| NL7603823A (en) | 1976-10-12 |
| FR2307372B3 (en) | 1979-02-02 |
| JPS51133983A (en) | 1976-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |