EP1156267A2 - Reflektor für eine Hochdruck-Gasentladungslampe - Google Patents
Reflektor für eine Hochdruck-Gasentladungslampe Download PDFInfo
- Publication number
- EP1156267A2 EP1156267A2 EP01105528A EP01105528A EP1156267A2 EP 1156267 A2 EP1156267 A2 EP 1156267A2 EP 01105528 A EP01105528 A EP 01105528A EP 01105528 A EP01105528 A EP 01105528A EP 1156267 A2 EP1156267 A2 EP 1156267A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- gas discharge
- coating
- pressure gas
- discharge 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.)
- Withdrawn
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 239000004811 fluoropolymer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 230000006378 damage Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 206010011906 Death Diseases 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/12—Flameproof or explosion-proof arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
Definitions
- the invention relates to reflectors for lamps, in particular for such Lamps that have a high-pressure gas discharge filament.
- Such lamps are used for data projection and for automobiles, especially for headlights, but also for other lighting purposes.
- the reflectors are generally elliptical, parabolic or basic contour similar to a conic section. They can be made of glass, or ceramic Plastic exist as a substrate material.
- the gas discharge lamps mentioned have a high Internal pressure of up to 200 bar. They do have numerous technological ones Benefits. However, their lifespan is limited. Generally this is in of the order of 2000 hours. A serious disadvantage of such Filament consists in the fact that at the end of their life their destruction occurs through an explosion. With the explosion mentioned the Reflector an abrupt impact. In doing so, the Reflector wall particles in crumbs or fragments detached, which in the get outside environment and there on other objects impact, for example on the lamp body and its Accessories. This can destroy sensitive optical components become, which means considerable damage.
- the wall of the reflector has been dimensioned very strongly. It reflectors made of glass with a wall thickness of approx. 4 mm are known become. Thick-walled glass is subject to high thermal ones Thermal stresses, which in turn can lead to breakage. A large wall thickness is therefore not a satisfactory solution.
- the invention has for its object a reflector of the type mentioned to be designed so that in the event of the gas discharge filament bursting does not damage components that damage the Surround reflector. Furthermore, the designer should have all freedom with regard to the design of the reflector, especially what transparency or non-transparency of heat and / or light rays to the outside concerns. Finally, the reflector should be inexpensive to manufacture.
- a reflector of the type mentioned at the beginning provided with a coating.
- the coating consists of a Plastic that is resistant to high temperatures and tough, and the one over the Reflector circumference forms a continuous layer. It doesn't need the entire reflector surface must be covered by the layer. It can also be sufficient to put a layer ring around the reflector, the - seen in the axial direction of the reflector - over the necessary Part of the reflector surface extends away.
- the coating is preferably applied to the outer surface of the reflector applied. It expediently consists of a fluoropolymer.
- the layer is light-tight (black) and / or heat-tight. If it is heat-tight, it will heat generated by the filament is absorbed by the reflector material. It can then be deliberately removed from the surface of the reflector, for example by convection. It therefore does not get to where it would heat up the surrounding parts of the lamp, too Complications.
- the layer according to the invention transparent.
- the advantage is that the heat radiation through the material of the reflector to the outside arrives, and the reflector body remains colder.
- the layer thickness is variable. In practical cases it is in the order of 5 to 50 ⁇ . 40 ⁇ turned out to be optimal.
- the layer solves the task perfectly. Does that End of life of the filament, accompanied by an explosion, see above the layer prevents particles from flying centrifugally out of the Reflector material. Even the finest fragments are kept this way. The layer lasts strongest shock waves.
- the layer can be applied in different ways, for example by spraying, dipping or powder coating. If necessary, baking follows as the last process step.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
Description
Claims (6)
- Reflektor für eine Lampe, insbesondere mit einem Hochdruck-Gasentladungs-Leuchtkörper, mit einer Innenfläche und einer Außenfläche,
gekennzeichnet durch eine Beschichtung aus temperaturfestem, zähem Kunststoff. - Reflektor nach Anspruch 1, dadurch gekennzeichnet, daß die Beschichtung aus Fluorpolymer besteht.
- Reflektor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Beschichtung die Außenfläche des Reflektors bildet.
- Reflektor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sich die Beschichtung über den gesamten Umfang, aber nur über einen Teil der Länge des Reflektors erstreckt.
- Reflektor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Beschichtung wärme- und/oder lichtabschirmend ist.
- Reflektor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Beschichtung transparent gegenüber Licht und/oder Wärme ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024469 | 2000-05-18 | ||
DE10024469A DE10024469C2 (de) | 2000-05-18 | 2000-05-18 | Reflektor für einen Hochdruck-Gasentladungs-Leuchtkörper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1156267A2 true EP1156267A2 (de) | 2001-11-21 |
EP1156267A3 EP1156267A3 (de) | 2003-10-29 |
Family
ID=7642596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01105528A Withdrawn EP1156267A3 (de) | 2000-05-18 | 2001-03-06 | Reflektor für eine Hochdruck-Gasentladungslampe |
Country Status (5)
Country | Link |
---|---|
US (1) | US20010043473A1 (de) |
EP (1) | EP1156267A3 (de) |
JP (1) | JP2001325819A (de) |
DE (1) | DE10024469C2 (de) |
HK (1) | HK1045556A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004029508A1 (de) * | 2002-09-20 | 2004-04-08 | Celinius Co., Ltd. | Beleuchtungssystem mit einer entladungslampe sowie verfahren zur vermeidung des austritts unerwünschter gase und glassplitter aus einem solchen beleuchtungssystem |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10150656C2 (de) * | 2001-10-13 | 2003-10-02 | Schott Glas | Reflektor für eine Hochdruck-Gasentladungslampe |
DE10245622A1 (de) * | 2002-09-30 | 2004-04-08 | Schott Glas | Reflektor mit einer äußeren Umhüllung für Leuchten hoher Leistung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1348606A (fr) * | 1962-11-30 | 1964-01-10 | Holophane | Réflecteur en verre avec revêtement de sécurité |
US4837668A (en) * | 1988-01-28 | 1989-06-06 | Koehler Joseph P | Reflector for dental or medical light |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5358775A (en) * | 1993-07-29 | 1994-10-25 | Rogers Corporation | Fluoropolymeric electrical substrate material exhibiting low thermal coefficient of dielectric constant |
DE4441486C2 (de) * | 1994-11-22 | 1996-09-19 | Bosch Gmbh Robert | Reflektor eines Scheinwerfers für Fahrzeuge |
DE29721547U1 (de) * | 1997-12-08 | 1998-08-13 | Reichard, Ulrich, Dornbirn | Arbeitsleuchte mit einer Gasentladungslampe und einem Diffusor |
JP3803736B2 (ja) * | 1998-07-31 | 2006-08-02 | 岩崎電気株式会社 | 投影装置用光源 |
-
2000
- 2000-05-18 DE DE10024469A patent/DE10024469C2/de not_active Expired - Lifetime
- 2000-11-28 JP JP2000361822A patent/JP2001325819A/ja active Pending
- 2000-12-02 US US09/729,675 patent/US20010043473A1/en not_active Abandoned
-
2001
- 2001-03-06 EP EP01105528A patent/EP1156267A3/de not_active Withdrawn
-
2002
- 2002-05-21 HK HK02103810.0A patent/HK1045556A1/zh unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1348606A (fr) * | 1962-11-30 | 1964-01-10 | Holophane | Réflecteur en verre avec revêtement de sécurité |
US4837668A (en) * | 1988-01-28 | 1989-06-06 | Koehler Joseph P | Reflector for dental or medical light |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05, 14. September 2000 (2000-09-14) & JP 2000 047327 A (IWASAKI ELECTRIC CO LTD), 18. Februar 2000 (2000-02-18) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004029508A1 (de) * | 2002-09-20 | 2004-04-08 | Celinius Co., Ltd. | Beleuchtungssystem mit einer entladungslampe sowie verfahren zur vermeidung des austritts unerwünschter gase und glassplitter aus einem solchen beleuchtungssystem |
Also Published As
Publication number | Publication date |
---|---|
US20010043473A1 (en) | 2001-11-22 |
HK1045556A1 (zh) | 2002-11-29 |
EP1156267A3 (de) | 2003-10-29 |
DE10024469C2 (de) | 2002-06-20 |
JP2001325819A (ja) | 2001-11-22 |
DE10024469A1 (de) | 2001-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10150656C2 (de) | Reflektor für eine Hochdruck-Gasentladungslampe | |
DE3222501A1 (de) | Reflektor fuer eine lampe | |
WO2011054716A2 (de) | Beleuchtungsvorrichtung mit einem kolben | |
EP3139096A1 (de) | Backofenleuchte | |
DE29914114U1 (de) | Scheinwerfer | |
EP1156267A2 (de) | Reflektor für eine Hochdruck-Gasentladungslampe | |
DE202017106313U1 (de) | Optikelement mit wellenlängenselektiver Beschichtung und hiermit ausgestattete Fahrzeugleuchte | |
DE4109657A1 (de) | Scheinwerfer fuer kraftfahrzeuge | |
DE4019587A1 (de) | Scheinwerfer fuer kraftfahrzeuge | |
EP3516688A1 (de) | Kraftfahrzeug-scheinwerfer mit aufgelöteten smd-led | |
EP1702793B1 (de) | Leuchtenanordnung | |
DE10245622A1 (de) | Reflektor mit einer äußeren Umhüllung für Leuchten hoher Leistung | |
EP2191494B1 (de) | Hochdruckentladungslampe mit partieller beschichtung sowie fahrzeugscheinwerfer mit einer derartigen lampe | |
DE10150755C1 (de) | Reflektor ohne Belüftungsöffnungen, Verfahren zur Herstellung desselben und Verwendung des Reflektors | |
DE102015015360A1 (de) | Scheinwerfer für ein Kraftfahrzeug | |
DE4323422C2 (de) | Reflektoranordnung mit einem rinnenförmigen Reflektor | |
DE102013201809B4 (de) | Medizinisches Instrument | |
DE102005018115A1 (de) | Kompakte Reflektorlampe und Verfahren zu ihrer Herstellung | |
DE102013010604A1 (de) | Kunststoffbauteil zur Halterung einer LED | |
DE102005040227A1 (de) | Leuchteneinheit mit einem Reflektorbauteil und Reflektorbauteil für eine Leuchteneinheit | |
AT400886B (de) | Leuchte | |
DE112021003593T5 (de) | Einheitliche Mehrfachoptiksysteme mit Lichtschranken | |
DE19542985A1 (de) | Lichthärtgerät | |
DE3112114A1 (de) | Scheinwerfer, insbesondere einsatzscheinwerfer, fuer kraftfahrzeuge | |
DE102015108499A1 (de) | Optoelektronisches Bauelement mit einer Strahlungsquelle |
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 |
|
17P | Request for examination filed |
Effective date: 20010306 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20040216 |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1045556 Country of ref document: HK |