EP0771997B1 - Lampenabdeckung - Google Patents
Lampenabdeckung Download PDFInfo
- Publication number
- EP0771997B1 EP0771997B1 EP96115779A EP96115779A EP0771997B1 EP 0771997 B1 EP0771997 B1 EP 0771997B1 EP 96115779 A EP96115779 A EP 96115779A EP 96115779 A EP96115779 A EP 96115779A EP 0771997 B1 EP0771997 B1 EP 0771997B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- lamp cover
- hollow body
- protective layer
- acrylate
- 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 - Lifetime
Links
Images
Classifications
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
Definitions
- the invention relates to a lamp cover made of a transparent thermoplastic Plastic, with a protective coating to absorb ultraviolet radiation.
- Usual lamp covers of this type use plastics under the influence UV rays become more and more brittle over time, making them fragile and also turn yellow. Therefore, such, especially outdoors used lamp covers an outer layer protecting against UV rays.
- the lamp cover forms a closed one, especially in the case of outdoor lights Chamber in which there is practically no exchange of air with the outside air. So build very high ozone concentration inside the lamp cover, causing Ozone aging processes can be accelerated.
- This also includes the material of the wall body the lamp cover affected, which are aggressive when using new lamps Influences not only from the outside, but also from the inside, and not only due to UV rays, but also due to the high concentration of ozone Air inside the lamp cover.
- EP-A-0 177 034 is an acrylic resin coating e.g. for the headlights one Motor vehicle described. It has a 2-layer structure from a primer and a hard layer applied over it, at least the primer one Has UV absorber portion (triazole) of 0.5 to 50 wt .-% and thereon a curable Silicon dioxide or methyl sesquisiloxane coating is necessary.
- UV absorber portion triazole
- the object of the invention is seen in translucent lamp covers in the form of externally coated plastic hollow body in a closed chamber contain a UV radiation and / or ozone source, also in front of a lamp in the Interior outgoing adverse and particularly destructive influences well to protect. Naturally, the aim is to minimize light losses in order to to get the most effective lighting fixture that is also permanently reliable should work.
- Lamp cover made of a transparent thermoplastic, with a Protective coating for absorbing ultraviolet radiation is according to the invention provided that the lamp cover is a spherical hollow body with only one Opening for inserting a lamp and for attaching it to a lamp holder, that on the outer surface of the hollow body, a protective layer made of UV radiation absorbent acrylate is present and that additionally with the inside of the Hollow body has an inner protective layer made of both UV radiation absorbing as well as ozone-impermeable acrylate is connected in one piece. How to get Lamp covers, thanks to their special coating, high lighting effectiveness own and also provide reliable long-term use outdoors.
- the present invention brings about an additional one UV and ozone protection through internal coating of a one-piece, spherical Hollow body with only one opening for inserting a lamp and Attach to a light carrier, such hollow bodies each being a closed one Form chamber in which UV and ozone effects gradually destroy materials would trigger what is largely prevented according to the invention.
- the feature of claim 2 further contributes to this because the area close to the lamp passes through the coating thickened there is protected all the better.
- Such a variation of the Layer thickness is not apparent from the prior art, especially since the invention allows through the only opening of the otherwise closed hollow body, that is a spherical lamp, the coating material in it in a certain way distribute that he can perform the function assigned to him.
- the translucent hollow body is a one-piece molding Polycarbonate, polyamide or polyethylene, which is cheap to manufacture and in Use is beneficial.
- the drawing shows a spherical lamp cover with a partial sectional view through the wall.
- Your wall body 1 is designed as a molded part produced, for example, in a rotary fusion process known per se from a thermoplastic, for example a polycarbonate.
- a protective layer 2 made of a UV-ray-absorbing acrylate is provided on its outer surface in a manner known per se.
- An inner protective layer 3 is additionally arranged as a protective element against destructive influences emanating from the lamp, in addition to the UV rays, in particular also from the extremely high ozone concentration. This also consists of an acrylate, which is also impermeable to ozone due to its UV-absorbing effect.
- the lamp cover has only one opening 4 for the introduction of the lamp and for attachment to a lamp holder.
- the objectification of the idea of the invention is not limited to the embodiment described above.
- the wall body can also be made from another Material, e.g. a polyamide or polyethylene. He can go after another Processes, e.g. a known injection blow molding process be produced as a one-piece molded part.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Physical Water Treatments (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Description
Claims (3)
- Lampenabdeckung aus einem transparenten thermoplastischen Kunststoff, mit einer Schutzbeschichtung zum Absorbieren von Ultraviolett-Strahlung, dadurch gekennzeichnet, daß die Lampenabdeckung ein kugelförmiger Hohlkörper (1) mit nur einer Öffnung (4) zum Einführen einer Lampe und zum Befestigen an einem Lampenträger ist, daß auf der Außenfläche des Hohlkörpers (1) eine Schutzschicht (2) aus einem UV-Strahlung absorbierenden Acrylat vorhanden ist und daß zusätzlich mit der Innenseite des Hohlkörpers (1) eine innere Schutzschicht (3) aus einem sowohl UV-Strahlung absorbierenden als auch Ozonundurchlässigen Acrylat einstückig verbunden ist.
- Lampenabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß die innere Schutzschicht (3) im lampennäheren Bereich dicker ist als in lampenferneren Bereichen.
- Lampenabdeckung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Hohlkörper (1) ein einstückiges Formteil aus Polycarbonat, Polyamid oder Polyethylen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29517444U DE29517444U1 (de) | 1995-11-03 | 1995-11-03 | Lampenabdeckung |
DE29517444U | 1995-11-03 | ||
JP7292967A JPH09139108A (ja) | 1995-11-03 | 1995-11-10 | 照明灯ほや |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0771997A1 EP0771997A1 (de) | 1997-05-07 |
EP0771997B1 true EP0771997B1 (de) | 2003-02-05 |
Family
ID=26058359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96115779A Expired - Lifetime EP0771997B1 (de) | 1995-11-03 | 1996-10-02 | Lampenabdeckung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0771997B1 (de) |
JP (1) | JPH09139108A (de) |
DE (2) | DE29517444U1 (de) |
ES (1) | ES2191074T3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10310557B4 (de) * | 2003-03-11 | 2011-07-21 | Heinrich Strunz GmbH, 95111 | Lichtkuppel mit Kunstlichtquelle |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU424121B2 (en) * | 1969-06-23 | 1972-05-15 | K-S-H, Inc | Light transmitting panel |
US3949258A (en) * | 1974-12-05 | 1976-04-06 | Baxter Laboratories, Inc. | Method and means for suppressing ozone generated by arc lamps |
JPS6186259A (ja) * | 1984-10-05 | 1986-05-01 | 日産自動車株式会社 | 表面硬化膜を備えたプラスチツク部材 |
JPH0612906A (ja) * | 1992-03-16 | 1994-01-21 | Yokohama Kiko Kk | 美術品照明等に適した照明器具 |
JPH05325611A (ja) * | 1992-05-25 | 1993-12-10 | Toshiba Lighting & Technol Corp | 反射体 |
JPH05325612A (ja) * | 1992-05-26 | 1993-12-10 | Dainippon Ink & Chem Inc | ランプリフレクタ |
JPH06111612A (ja) * | 1992-09-25 | 1994-04-22 | Sumitomo Chem Co Ltd | 照明用樹脂板状体 |
US5314741A (en) * | 1992-10-07 | 1994-05-24 | The Goodyear Tire & Rubber Company | Rubber article having protective coating |
JP2579350Y2 (ja) * | 1992-10-09 | 1998-08-27 | シチズン時計株式会社 | 照明装置およびそれを用いた液晶表示装置 |
JPH0658509U (ja) * | 1993-01-18 | 1994-08-12 | スタンレー電気株式会社 | 照明器具 |
JPH07220514A (ja) * | 1994-02-04 | 1995-08-18 | Sekisui Chem Co Ltd | 光拡散板の製造方法 |
-
1995
- 1995-11-03 DE DE29517444U patent/DE29517444U1/de not_active Expired - Lifetime
- 1995-11-10 JP JP7292967A patent/JPH09139108A/ja active Pending
-
1996
- 1996-10-02 EP EP96115779A patent/EP0771997B1/de not_active Expired - Lifetime
- 1996-10-02 ES ES96115779T patent/ES2191074T3/es not_active Expired - Lifetime
- 1996-10-02 DE DE59610111T patent/DE59610111D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2191074T3 (es) | 2003-09-01 |
EP0771997A1 (de) | 1997-05-07 |
DE29517444U1 (de) | 1995-12-21 |
DE59610111D1 (de) | 2003-03-13 |
JPH09139108A (ja) | 1997-05-27 |
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