GB453310A - Improvements in or relating to sources of light - Google Patents
Improvements in or relating to sources of lightInfo
- Publication number
- GB453310A GB453310A GB24182/35A GB2418235A GB453310A GB 453310 A GB453310 A GB 453310A GB 24182/35 A GB24182/35 A GB 24182/35A GB 2418235 A GB2418235 A GB 2418235A GB 453310 A GB453310 A GB 453310A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- envelope
- light
- fluorescent
- diameter
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
453,310. Lamps containing electric discharge tubes. TENNANT, W. J., 111, Hatton Garden, London.-(Soc. Anon. pour les Applications de l'ElectricitÚ et des Gaz Rares, Etablissements Claude-Paz & Silva; 8, Rue Cognac-Jay, Paris) Aug. 29, 1935, No. 24182. [Class 75 (iv)] A source of light of uniform tonality comprises one or more transparent neon tubes and one or more mercury tubes the inner walls of which contain or are coated with fluorescent substances and are therefore opaque to the radiations of the neon tubes, all the tubes being arranged within a cylindrical envelope which disperses the light and is provided with means to avoid on the envelope the colour effect of the fluorescent tubes. For this purpose, the diameter of the envelope may be appreciably larger than the sum of the diameters of the tubes, the fluorescent tubes being spaced away from the inner surface of the envelope. Alternatively, the inside or outside of the envelope may have a narrow opaque band reflecting towards each fluorescent tube, the width of the band preferably being about equal to the diameter of the fluorescent tube. The envelope may comprise a thin layer of opal glass and one or more layers of transparent glass. The colour of the. light may be varied by regulating the current supplied to the various tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24182/35A GB453310A (en) | 1935-08-29 | 1935-08-29 | Improvements in or relating to sources of light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24182/35A GB453310A (en) | 1935-08-29 | 1935-08-29 | Improvements in or relating to sources of light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB453310A true GB453310A (en) | 1936-09-09 |
Family
ID=10207700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24182/35A Expired GB453310A (en) | 1935-08-29 | 1935-08-29 | Improvements in or relating to sources of light |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB453310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749714C (en) * | 1937-04-22 | 1944-12-02 | High-pressure mercury lamp with quartz glass vessel and a luminous layer made of a mixture of luminescent materials and arranged in the beam path of the lamp |
-
1935
- 1935-08-29 GB GB24182/35A patent/GB453310A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749714C (en) * | 1937-04-22 | 1944-12-02 | High-pressure mercury lamp with quartz glass vessel and a luminous layer made of a mixture of luminescent materials and arranged in the beam path of the lamp |
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