GB846934A - Improvements in and relating to incandescent lamps - Google Patents
Improvements in and relating to incandescent lampsInfo
- Publication number
- GB846934A GB846934A GB24149/57A GB2414957A GB846934A GB 846934 A GB846934 A GB 846934A GB 24149/57 A GB24149/57 A GB 24149/57A GB 2414957 A GB2414957 A GB 2414957A GB 846934 A GB846934 A GB 846934A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- bulb
- collodion
- pigment
- matt
- 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
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
846,934. Electric incandescent lamps. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R. T. July 30, 1957 [Aug. 1, 1956], No. 24149/57. Class 39(2). An incandescent lamp especially for infrared radiation has a reflecting coating on part of the inner surface of the bulb, the remainder of the surface being given a coating of pigment of micron grain size producing a matt finish. In a method of producing a bulb, the coatings are applied successively in any order, the other coating being removed from those areas where it is not wanted. In one method, a pigment such as titanium dioxide in a solution of butyl acetate or acetone containing a binder such as collodion is applied to the bulb, the unwanted parts of the resulting coating are removed mechanically or chemically and a reflecting coating applied by evaporation, unwanted parts of this coating being then removed by chemical means. Alternatively, the reflecting coating is applied first, unwanted parts are removed and the remaining parts coated with collodion. The matt coating is then applied and the collodion coating together with the overlying matt coating removed. The outside of the bulb may be provided with a red lacquer coating or a red pigment may be fired on to the outer surface. Specification 695,081 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU846934X | 1956-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB846934A true GB846934A (en) | 1960-09-07 |
Family
ID=10980606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24149/57A Expired GB846934A (en) | 1956-08-01 | 1957-07-30 | Improvements in and relating to incandescent lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB846934A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313706A (en) * | 1993-12-10 | 1997-12-03 | Gen Electric | A process for forming patterned optical interference coatings for electric lamps |
-
1957
- 1957-07-30 GB GB24149/57A patent/GB846934A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313706A (en) * | 1993-12-10 | 1997-12-03 | Gen Electric | A process for forming patterned optical interference coatings for electric lamps |
| GB2313706B (en) * | 1993-12-10 | 1998-07-15 | Gen Electric | Process for forming patterned optical interference coatings fo electric lamps |
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