DE2228684A1 - CLOSED REFLECTOR WITH A LIGHT BULB - Google Patents
CLOSED REFLECTOR WITH A LIGHT BULBInfo
- Publication number
- DE2228684A1 DE2228684A1 DE2228684A DE2228684A DE2228684A1 DE 2228684 A1 DE2228684 A1 DE 2228684A1 DE 2228684 A DE2228684 A DE 2228684A DE 2228684 A DE2228684 A DE 2228684A DE 2228684 A1 DE2228684 A1 DE 2228684A1
- Authority
- DE
- Germany
- Prior art keywords
- reflector
- reflector housing
- housing
- transparent front
- light bulb
- 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- Withdrawn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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002274 desiccant Substances 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 101100165798 Arabidopsis thaliana CYP86A1 gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/30—Ventilation or drainage of lighting devices
- F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Description
PHN. 5680.PHN. 5680.
Anmelder: K.V. Pii.LirJ'aCtiLAMPENFABRIEKEH
Akte: PHN- 5680Applicant: KV Pii.LirJ'aCtiLAMPENFABRIEKEH
File: PHN-5680
Anmeldung vomi 9. Jim! 1972Registration from 9th Jim! 1972
Geschlossener Reflektor mit einer Glühlampe.Closed reflector with a light bulb.
Die Erfindung bezieht sr.ch auf eine geschlossene Reflektoreinheit mit einer Glühlampe, die ein Reflektorgehäuse, in dem die Glühlampe untergebracht ist, und eine transparente mit einem Klebemittel am Reflektorgehäuse befestigte Vorderplatte umfasst.The invention relates to a closed reflector unit sr.ch. with a light bulb, which has a reflector housing in which the light bulb is housed, and comprises a transparent faceplate attached to the reflector housing with an adhesive.
Derartige Gebilde sind an sich bekannt. Bisher ist esSuch structures are known per se. So far it is
jedoch nicht gelungen, ein Klebemittel zu finden, mit dem eine während der ganzen Lebensdauer de8 Gebildes wasserdampfdichte Verbindung zwischen der Vordcrplatte und dem Reflektorgehäuse hergestellt werden kann. Demzufolge konnte ein derartiges Gebilde z.B. bei Kraftwagenscheinwerfen noch keine Anwendung finden. Bei Anwendung nichtwasserdampfdichter Gebilde ist es möglich, dass bei niedrigen Temperaturen hineindiffundierter Wasserdampf auf die Wand des Reflekfcorgehäuses kondensiert. Die auf der Wand des Reflektorgehäuses befindliche reflektierende Schicht isthowever failed to find an adhesive with which one during the entire service life of the structure water vapor-tight connection between the front panel and the reflector housing can be made. As a result, such a structure could e.g. not yet apply. When using structures that are not impermeable to water vapor, it is possible that diffusion may occur at low temperatures Water vapor condenses on the wall of the reflector housing. The on the reflective layer located on the wall of the reflector housing
209883/0615209883/0615
-2- . PHN, 5680.-2-. PHN, 5680.
jedoch gewöhnlich nicht gut gegen Wasser in flüssigem Zustand beständig·.however, usually not well resistant to water in the liquid state ·.
Die Erfindung bezweckt, Massnahmen zu schaffen, mit"deren Hilfe die Probleme, die sich bei der Anwendung geschlossener Reflektoren mit einer Glühlampe ergeben, bei denen eine transparente Vorderplatte mit einem Klebemittel an einem Reflektorgehäuse befestigt ist, vermieden werden können.The aim of the invention is to create measures with "whose Help solve the problems that arise when using closed reflectors with an incandescent lamp, in which a transparent faceplate is attached to a reflector housing with an adhesive, can be avoided.
Ein derartiges Gebilde r.st nach der Erfindung dadurch gekennzeichnet, dass innerhalb des von dem Reflektorgehäuse und der Vorderplatte umschlossenen Raumes ein Trocknungsmittel vorhanden ist, über dem der Wasserdampfdruck bei der höchsten Betriebstemperatur, die in diesem Raum auftreten kann, kleiner als oder etwa gleich dem Wasserdampfdruck bei 00C ist.Such a structure r.st according to the invention characterized in that within the space enclosed by the reflector housing and the front panel there is a desiccant above which the water vapor pressure at the highest operating temperature that can occur in this space is less than or approximately equal to Water vapor pressure is at 0 0 C.
Diese Massnahme hat zur Folge, dass bei Abkühlung eine etwaige Kondensation nur in Form von Eis stattfinden kann. Es hat sich nämlich herausgestellt, dass im allgemeinen reflektierende Schichten, die sich auf der Wand des Reflektorgehäuses befinden, und insbesondere aufgedampfte Metallschichten zwar nicht gegen Wasser in flüssigem Zustand aber gegen Eis beständig sind.This measure has the consequence that a possible Condensation can only take place in the form of ice. It has been found that in general reflective layers, which are located on the wall of the reflector housing, and in particular vapor-deposited metal layers, although not against water in a liquid state but are resistant to ice.
Für den gemäss der Erfindung angestrebten Zweck eignen sich insbesondere Trocknungsmittel, die als Molekularsiebmaterialien bezeichnet werden. Beispiele dieser Stoffe sind die synthetischen Zeolithe, \.ie sie von der Firma Union Carbide in den Handel gebracht werden. Mit dirsei Stoffen können Taupunkte unterhalb O0U leicht erzielt werden. Das Trocknungsmittel kann an einer praktisch beliebigen Stelle innerhalb des von dem Reflektorgehäuse und der transparenten Vorderplatte umschlossenen Raumes angebracht werden. Es ist einleuchtend, dass bei der Wahl dieser Stelle die. Temperatur berücksichtigt werden muss, die beim Betrieb anDesiccants, which are referred to as molecular sieve materials, are particularly suitable for the purpose sought according to the invention. Examples of these substances are the synthetic zeolites, as they are marketed by Union Carbide. Dew points below O 0 U can easily be achieved with these fabrics. The desiccant can be applied at practically any point within the space enclosed by the reflector housing and the transparent front panel. It is evident that in choosing this point the. Temperature must be taken into account when operating at
209883/0615209883/0615
-3- PHK. 5680.-3- PHK. 5680.
dieser Stelle vorherrscht. Es ist günstig, das Trocknungsmittel an der beim Betrieb kühlsten Stelle anzubringen. Ferner ist es erwünscht, das Trocknungsmittel derart anzubringen, dass kein Lichtverlust auftritt. Vorzugsweise wird daher das Trocknungsmittel an demjenigen Rande des Reflektorgehäuses möglichst nahe angebracht, mit dem dieses Gehäuse mit Hilfe des Klebemittels an der Vorderplatte befestigt ist.this place prevails. It is convenient to have the desiccant at the to be placed in the coolest place during operation. It is also desirable to attach the desiccant in such a way that no light loss occurs. The desiccant is therefore preferably attached as close as possible to that edge of the reflector housing with which this housing is connected With the help of the adhesive attached to the front panel.
Die Menge des anzubringenden Trocknungsmittels wi"rd derart berechnet ι dass jedenfalls während dor Lebensdauer der Glühlampe der gewünschte Effekt erreicht wird. Durch die grosse Wasserabsorptions- , fähigkeit eignen sich Molekularsiebe auch aus diesem Grunde besonders gut für den angestrebten Zweck.The amount of the drying agent to be applied is such calculated that at least during the life of the incandescent lamp desired effect is achieved. Due to the large water absorption, Molecular sieves are particularly suitable for this reason good for its intended purpose.
Die Erfindung wird nachstehend an Hand der Zeichnung näher erläutert.The invention is explained in more detail below with reference to the drawing explained.
Die Figur zeigt schematiseh im Schnitt eine Reflektoreinheit, die ein Reflektorgehäuse 1, das z.B. aus Stahl besteht und auf der Innenseite mit einer reflektierenden Schicht aus Aluminium versehen ist, eine transparente Vorderplatte 2, die z.B. aus Glas besteht, und eine Halogenglühlampe 4 umfasst, die auf einer Hinterplatte 3 befestigt ist. Me Hinterplatte 3 und die transparente Vorderplatte 2 sind mit Hilfe eines Klebemittels, z.B. eines kalthärtbaren Epoxydharzes, am Reflektorgehäuse 1 befestigt (5 und 6).The figure shows schematically in section a reflector unit, a reflector housing 1, which consists e.g. of steel and is provided on the inside with a reflective layer of aluminum, a transparent front plate 2 made of glass, for example, and comprising a halogen lamp 4 fixed on a rear plate 3. The rear panel 3 and the transparent front panel 2 are attached to the reflector housing with the aid of an adhesive, e.g. a cold-curing epoxy resin 1 attached (5 and 6).
In dem Reflektorgehäuse ist in der Nähe des Randes eine Rille 7 angebracht, in der sich ein Trocknungsmittel (molecular sieve Typ 4A der Firma Union Carbide) befindet.In the reflector housing, near the edge, there is a groove 7 in which a drying agent (molecular sieve Type 4A from Union Carbide) is located.
Bei einer Lebensdauer der Glühlampe von 3 Jahren und bei einem Innenvolumen der Reflektoreinheit von 1000 cm3 stellt sich heraus, dass beim Vorhandensein von 0,5 g des genannten Trocknungsmittels, auch bei extremen Temperaturänderungen in einem feuchten Klima keine Kondensation von Wasser in flüssiger Form während der Lebensdauer der Glühlampe stattfindet. 209883/0616 .With a service life of the incandescent lamp of 3 years and an internal volume of the reflector unit of 1000 cm 3 , it turns out that with the presence of 0.5 g of the desiccant mentioned, even with extreme temperature changes in a humid climate, no condensation of water in liquid form during the life of the incandescent lamp takes place. 209883/0616.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7108536A NL7108536A (en) | 1971-06-21 | 1971-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2228684A1 true DE2228684A1 (en) | 1973-01-18 |
Family
ID=19813449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2228684A Withdrawn DE2228684A1 (en) | 1971-06-21 | 1972-06-13 | CLOSED REFLECTOR WITH A LIGHT BULB |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3809942A (en) |
| JP (1) | JPS5525706B1 (en) |
| DE (1) | DE2228684A1 (en) |
| FR (1) | FR2143171B1 (en) |
| GB (1) | GB1367234A (en) |
| NL (1) | NL7108536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4339954A1 (en) * | 1993-11-24 | 1995-06-01 | Porsche Ag | Car headlamp |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146812A (en) * | 1978-05-01 | 1979-03-27 | Gte Sylvania Incorporated | Motor vehicle headlight having filling hole sealed with non-rigid material |
| US4240853A (en) * | 1978-10-20 | 1980-12-23 | Esquire, Inc. | Lens closure for light fixture and method for attachment |
| US4429249A (en) | 1980-03-10 | 1984-01-31 | General Motors Corporation | Sealed beam lamp and method of manufacture |
| FR2871750A1 (en) * | 2004-06-18 | 2005-12-23 | Valeo Vision Sa | Headlight type lighting and/or signaling device for motor vehicle, has zeolite base active compound to absorb/adsorb humidity in device in reversible manner, where compound is under form of coating |
| US11655966B2 (en) * | 2019-01-14 | 2023-05-23 | Musco Corporation | Apparatus, method, and system for reducing moisture in LED lighting fixtures |
| WO2020150139A1 (en) * | 2019-01-14 | 2020-07-23 | Musco Corporation | Apparatus, method, and system for reducing moisture in led lighting fixtures |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1992852A (en) * | 1930-04-16 | 1935-02-26 | Bader Jakob | Surge protector |
| US2464990A (en) * | 1945-08-28 | 1949-03-22 | Westinghouse Electric Corp | Electric lamp manufacture |
| US2594753A (en) * | 1949-10-06 | 1952-04-29 | Gen Motors Corp | Sealed beam lamp |
| US2882244A (en) * | 1953-12-24 | 1959-04-14 | Union Carbide Corp | Molecular sieve adsorbents |
| US3010045A (en) * | 1955-05-27 | 1961-11-21 | Westinghouse Electric Corp | Sealed-beam lamp and method of manufacture |
| NL262249A (en) * | 1960-03-11 | |||
| NL6613009A (en) * | 1966-09-15 | 1968-03-18 | ||
| NL153387B (en) * | 1968-02-15 | 1977-05-16 | Philips Nv | DEVICE FOR GENERATING STIMULATED INFRARED EMISSION, IRASER, BY MEANS OF AN ELECTRICAL DISCHARGE IN A GAS MIXTURE PARTICULARLY OF CARBONIC GAS, AND DISCHARGE TUBE INTENDED FOR SUCH DEVICE. |
| JPS4836782U (en) * | 1971-09-04 | 1973-05-02 |
-
1971
- 1971-06-21 NL NL7108536A patent/NL7108536A/xx not_active Application Discontinuation
-
1972
- 1972-06-13 DE DE2228684A patent/DE2228684A1/en not_active Withdrawn
- 1972-06-16 GB GB2831372A patent/GB1367234A/en not_active Expired
- 1972-06-16 US US00263415A patent/US3809942A/en not_active Expired - Lifetime
- 1972-06-19 JP JP6052772A patent/JPS5525706B1/ja active Pending
- 1972-06-21 FR FR7222321A patent/FR2143171B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4339954A1 (en) * | 1993-11-24 | 1995-06-01 | Porsche Ag | Car headlamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5525706B1 (en) | 1980-07-08 |
| NL7108536A (en) | 1972-12-27 |
| US3809942A (en) | 1974-05-07 |
| GB1367234A (en) | 1974-09-18 |
| FR2143171B1 (en) | 1977-12-23 |
| FR2143171A1 (en) | 1973-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8139 | Disposal/non-payment of the annual fee |