EP1169723A1 - Reflektor-hochdruckentladungslampen-einheit - Google Patents
Reflektor-hochdruckentladungslampen-einheitInfo
- Publication number
- EP1169723A1 EP1169723A1 EP01907360A EP01907360A EP1169723A1 EP 1169723 A1 EP1169723 A1 EP 1169723A1 EP 01907360 A EP01907360 A EP 01907360A EP 01907360 A EP01907360 A EP 01907360A EP 1169723 A1 EP1169723 A1 EP 1169723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- pressure discharge
- discharge lamp
- base part
- lamp unit
- 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.)
- Granted
Links
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000011888 foil Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000012811 non-conductive material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- -1 mercury halides Chemical class 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 239000005401 pressed glass Substances 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
Classifications
-
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
- H01J5/62—Connection of wires protruding from the vessel to connectors carried by the separate part
Definitions
- the invention relates to a reflector high-pressure discharge lamp unit according to the features of the preamble of claim 1.
- Such a reflector high-pressure discharge lamp unit is known from DE 30 33 688.
- a high pressure discharge lamp and a reflector are firmly connected as a unit.
- An electrically insulating first base part is connected to the reflector neck and the lamp, and a second base part, which is made of ceramic and has the shape of a ring, is connected to the light-emitting outlet opening of the reflector.
- the power supply connected to the end of the lamp lying in the light exit direction is designed as a metal strip or welded to a metal strip running over the cross section.
- the metal band ends in a free-standing, metallic contact pin, which is attached to the ring of the base part and is used for electrical contacting of the lamp by means of a high-voltage cable.
- DMD TM Digital Mirror Device from Texas Instruments
- the so-called “ultra-compact” projectors in which the small nut dimensions and compact design, while at the same time being lightweight, ensure a high degree of portability, have become increasingly important.
- High-pressure discharge lamps which are used in the reflector lamps used , require a high voltage pulse of a few kV for ignition, and even several 10 kV for hot ignition.Therefore, not only must the two lamp connections be sufficiently electrically insulated from one another, but the electrical connections of the lamp arrangement must also be sufficiently electrically insulated from the housing part of the projection device in order to rule out a potential hazard to the user and to avoid a short circuit to earth, which could result in the destruction of electronic components of the projection device, with the frequently used, advantageous symmetrical Ignition, this applies to both electrical connections of the lamp, but in particular the lamp connection of the end of the lamp shaft lying in the light exit direction is problematic, since here the diameter of the reflector and thus also the overall arrangement is substantially larger than the diameter of the reflector neck or of the first base. In order to ensure the electrical insulation of the electrical connections of the lamp against the housing of the projection device, either correspondingly large distances must be maintained within the device, which is contrary to the desired compactness, or additional effort must be made
- the present invention is therefore based on the object of creating a generic reflector high-pressure discharge lamp unit in a compact design for use in projection devices in which the high-voltage strength of the lamp connection of the end lying in the light exit direction is simple the lamp shaft is guaranteed and at the same time the necessary strain relief of the high-voltage cable is created.
- the desired strain relief and high-voltage insulation is achieved by directly connecting the end of the second power supply or the connecting line to the second power supply with the end of the second high-voltage cable and embedding this connection area in the second base part made of electrically non-conductive material as a mechanical attachment part.
- the end of the second power supply or the connecting line to the second power supply is advantageously soldered and welded directly to the end of the second high-voltage cable.
- the end of the second high-voltage cable is embedded in a hole in the edge of the second base part.
- the second base part can have a cylindrical attachment at the edge in the area of the bore for extending the bore.
- the junction of the high-voltage cable and power supply or connecting line ensures that the high voltages required do not expose any free-standing metal parts that could lead to a direct high-voltage flashover (air sparks), and that all creepage distances are long enough to prevent surface sliding discharge from occurring High voltage flashover could develop to rule out.
- a wall thickness of the front part made of electrically non-conductive material selected in accordance with the required high voltage additionally prevents high voltage breakdown, so that when the reflector high-pressure discharge lamp unit according to the invention is installed in a projection device, no special insulating distances are to be maintained or additional electrical insulation is required.
- the diameter of the bore in the cylindrical attachment should advantageously be the same or only slightly larger than the diameter of the insulated part of the high-voltage cable.
- the end of the reflector-necked power supply or the end of the connecting line of the reflector-necked power supply from the end of the bulb shaft of the high-pressure discharge lamp to the second base part is advantageously guided in a contact-proof groove in the region of the second base part.
- the cylindrical attachment in the area of the hole is advantageously provided with a slot running parallel to the hole that extends to the groove.
- the high-voltage cable can also advantageously be fixed in the bore by a screw made of insulating material in order to achieve an even higher strain relief.
- the bore advantageously runs parallel to the axis of the high-pressure discharge lamp and thus also parallel to the axis of the reflector. As a result, the space requirement of the reflector high-pressure discharge lamp unit in the projection device is kept to a minimum.
- the second base part which is designed as an attachment part, has an aperture on the side facing and facing away from the radiation or light exit of the reflector. It is advantageously firmly connected to the reflector.
- the second aperture of the front part is advantageously closed with a radiation or translucent windshield. This prevents flammable objects from coming into contact with hot lamp parts.
- this front screen additionally protects sensitive optical components in the device from damage.
- the windscreen provides an additional electronic Rical insulation of the end of the second lamp shaft of the discharge lamp lying in the light exit direction and its current supply, so that the overall length in the light exit direction can be kept compact.
- the front screen can be attached to the front part with the help of an adhesive, eg a silicone adhesive, or can be held in position mechanically with clamps or a ring.
- the prefabricated part can also be provided with one or more side openings to allow a specifically controlled air flow to address thermally critical points such as e.g. to cool the end of the second lamp shaft of the discharge lamp in the light exit direction when combined with an elliptical reflector.
- a precisely adjusted installation of the lamp in an optical device, in particular a video and / or data projector, is advantageously facilitated by attaching reference points and threaded brackets to the second base part.
- the second base part which is designed as a front part
- this has the advantage over other materials, such as ceramics, that there is a high degree of flexibility with regard to the design of the geometric shape of the front part and a lower weight is achieved.
- the use of glass fiber-reinforced plastic also advantageously increases the mechanical stability of the front part.
- the material PEEK TM polyether ether ketone
- PEEK TM polyether ether ketone
- FIGS. 2a and 2b show a detailed view in top view and a sectional side view of an embodiment of the connection, embedded in the second base part, of the second high-voltage cable and the second power supply of the reflector high-pressure discharge lamp unit according to FIG. 1.
- the reflector high-pressure discharge lamp unit 1 has a coated reflector 2 made of pressed glass with an elliptical reflector shape, a short-arc high-pressure discharge lamp 3 with a filling of mercury halides and at least one noble gas, and base parts 4, 5 and high-voltage cables 6, 7.
- the high-pressure discharge lamp 3 is composed of a lamp bulb 8 and two lamp shafts 9, 10 arranged at the two opposite ends of the lamp bulb 8, electrode electrodes 13, 14 being melted in a gas-tight manner into the lamp shafts 9, 10 via metal foils 11, 12.
- the short-arc high-pressure discharge lamp 3 is arranged with its axis in the axis of the reflector 2 and is fastened with its first lamp shaft 9 by means of a cement 15 in the neck 16 of the reflector 2.
- the first base part 4 made of non-conductive plastic is fastened to the free end of the reflector neck 16 and the first lamp shaft 9 fastened therein.
- the metal foil 11 in the first lamp shaft 9 is electrically connected to the contact system (not shown here) in the first base part 4 via a first power supply 17.
- the first 6 of the two high-voltage cables 6, 7, via which the reflector high-pressure discharge lamp unit 1 is connected to an electronic ignition and operating system, is in turn connected to this contact system.
- the metal foil 12 in the second lamp shaft 10 is connected at one end to a second power supply 18.
- the other end of this second power supply 18 is again electrically connected to the second high-voltage cable 7 and, according to the invention, is embedded in an attachment 19 at the edge of the second socket part 5. Details of this connection are shown in the following figures.
- This second base part 5 which is also made of non-conductive plastic, has the shape of an attachment part and is attached in front of the radiation or light exit opening of the reflector 2 and is firmly connected to its edge.
- the second base part 5 has side ventilation openings 20 and a radiation and light-transmitting front window (not shown here).
- FIGS. 2a and 2b show a top view and a sectional side view of an embodiment of the connection, embedded in the second base part 5, of the end of the second power supply 18 to the end of the second high-voltage cable 7.
- the edge of the second base part 5 has an attachment 19 with a bore 21 parallel to the lamp and reflector axis.
- the attachment 19 is provided with a slot 22 parallel to the Bohmng 21.
- the Bohmng 21 has a diameter that is equal to the diameter of the insulated part of the high-voltage cable 7.
- the end of the high-voltage cable 7 is clamped in the drilling 21.
- the end of the high-voltage cable 7 is additionally fixed in the drilling 21 by means of a screw 23 made of insulating material.
- the high-voltage cable 7 has a stripped tip 24 which is welded to the end of the second power supply 18.
- the end region of the power supply 18 is again embedded in a groove 25 on the side of the second base part 5 facing the reflector 2 so that it is safe to touch.
- the Bohmng 21 and the slot 22 extend up to and including the height of the groove 25. This makes it possible to introduce the end of the second power supply 18 together with the end of the second high-voltage cable 7 in the welded state into the groove 25 or the Bohmng 21 and then to connect the second base part 5 firmly to the reflector 2. This leads to a high high voltage strength of the lamp.
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- X-Ray Techniques (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10001544 | 2000-01-14 | ||
| DE10001544 | 2000-01-14 | ||
| PCT/DE2001/000147 WO2001052298A1 (de) | 2000-01-14 | 2001-01-12 | Reflektor-hochdruckentladungslampen-einheit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1169723A1 true EP1169723A1 (de) | 2002-01-09 |
| EP1169723B1 EP1169723B1 (de) | 2007-09-05 |
Family
ID=7627660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01907360A Expired - Lifetime EP1169723B1 (de) | 2000-01-14 | 2001-01-12 | Reflektor-hochdruckentladungslampen-einheit |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6566815B2 (de) |
| EP (1) | EP1169723B1 (de) |
| JP (1) | JP2003520394A (de) |
| KR (1) | KR100808696B1 (de) |
| CN (1) | CN1229838C (de) |
| AT (1) | ATE372584T1 (de) |
| CA (1) | CA2366336A1 (de) |
| DE (1) | DE50112946D1 (de) |
| TW (1) | TW486722B (de) |
| WO (1) | WO2001052298A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4503200B2 (ja) * | 2001-04-23 | 2010-07-14 | オスラム・メルコ株式会社 | 反射鏡付放電ランプ |
| US7002285B2 (en) * | 2003-01-03 | 2006-02-21 | General Electric Company | Discharge lamp with bulb fixture arrangement and method for manufacturing the same |
| DE102004032406A1 (de) * | 2004-07-02 | 2006-02-16 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Verfahren zur Auslegung einer Entladungslampe |
| JP4093211B2 (ja) * | 2004-07-14 | 2008-06-04 | セイコーエプソン株式会社 | 光源装置、およびプロジェクタ |
| CN1331003C (zh) * | 2004-10-25 | 2007-08-08 | 罗筱泠 | 投影灯 |
| US20060262537A1 (en) * | 2005-05-17 | 2006-11-23 | Lee John W | Projection assembly |
| EP2034509B1 (de) * | 2006-05-26 | 2012-02-29 | Victor Ivanovich Tsay | Gasentladungs-reflektorlampe |
| KR101994887B1 (ko) * | 2007-04-12 | 2019-07-02 | 가부시키가이샤 니콘 | 방전램프, 접속용 케이블, 광원장치 및 노광장치 |
| RU2496180C1 (ru) * | 2012-03-29 | 2013-10-20 | Вячеслав Анатольевич Ермошин | Газоразрядная зеркальная лампа |
| RU200691U1 (ru) * | 2020-09-29 | 2020-11-05 | Общество с ограниченной ответственностью "НПФ СВЕТОВЫЕ РЕШЕНИЯ" | Газоразрядная зеркальная лампа |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3138731A (en) | 1962-09-12 | 1964-06-23 | Norman C Beese | Sealed beam high-intensity short arc lamp |
| US3364374A (en) | 1964-09-28 | 1968-01-16 | Gen Electric | Compact source lamp having electrode construction providing arc stabilization |
| DE2840031A1 (de) * | 1978-09-14 | 1980-04-03 | Patra Patent Treuhand | Anordnung mit hochdruckentladungslampe und reflektor als baueinheit |
| DE3033688A1 (de) * | 1980-09-08 | 1982-04-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Anordnung mit hochdruckentladungslampe und reflektor als baueinheit |
| DE3641852A1 (de) | 1986-12-08 | 1988-06-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Kfz-scheinwerfer-einheit |
| US4920459A (en) * | 1988-12-21 | 1990-04-24 | Gte Products Corporation | Arc discharge headlamp system |
| US5621267A (en) | 1995-03-22 | 1997-04-15 | Ilc Technology, Inc. | High-power metal halide reflector lamp |
| US5604406A (en) * | 1995-03-29 | 1997-02-18 | Intermacon Ag | Portable lamp for use with rapid start metal halide bulbs |
| KR20050004789A (ko) | 2002-03-01 | 2005-01-12 | 퍼-텍 리미티드 | 가스 유동 배치 장치 및 가스 스트림으로부터 오염 물질을제거하기 위한 장치에서의 및 이에 관한 개량 |
-
2001
- 2001-01-12 KR KR1020017011195A patent/KR100808696B1/ko not_active Expired - Fee Related
- 2001-01-12 WO PCT/DE2001/000147 patent/WO2001052298A1/de not_active Ceased
- 2001-01-12 AT AT01907360T patent/ATE372584T1/de not_active IP Right Cessation
- 2001-01-12 CA CA002366336A patent/CA2366336A1/en not_active Abandoned
- 2001-01-12 JP JP2001552422A patent/JP2003520394A/ja active Pending
- 2001-01-12 US US09/936,369 patent/US6566815B2/en not_active Expired - Fee Related
- 2001-01-12 DE DE50112946T patent/DE50112946D1/de not_active Expired - Fee Related
- 2001-01-12 EP EP01907360A patent/EP1169723B1/de not_active Expired - Lifetime
- 2001-01-12 CN CNB018000606A patent/CN1229838C/zh not_active Expired - Fee Related
- 2001-01-15 TW TW090100688A patent/TW486722B/zh not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0152298A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20020158581A1 (en) | 2002-10-31 |
| CN1358323A (zh) | 2002-07-10 |
| JP2003520394A (ja) | 2003-07-02 |
| EP1169723B1 (de) | 2007-09-05 |
| CA2366336A1 (en) | 2001-07-19 |
| TW486722B (en) | 2002-05-11 |
| CN1229838C (zh) | 2005-11-30 |
| KR100808696B1 (ko) | 2008-02-29 |
| ATE372584T1 (de) | 2007-09-15 |
| DE50112946D1 (de) | 2007-10-18 |
| WO2001052298A1 (de) | 2001-07-19 |
| KR20010102482A (ko) | 2001-11-15 |
| US6566815B2 (en) | 2003-05-20 |
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