GB495550A - Improvements in or relating to electric gas-discharge tubes - Google Patents
Improvements in or relating to electric gas-discharge tubesInfo
- Publication number
- GB495550A GB495550A GB11365/38A GB1136538A GB495550A GB 495550 A GB495550 A GB 495550A GB 11365/38 A GB11365/38 A GB 11365/38A GB 1136538 A GB1136538 A GB 1136538A GB 495550 A GB495550 A GB 495550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- luminescent
- tube
- glass
- layer
- discharge
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
495,550. Discharge lamps; luminescent screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 13, 1938, No. 11365. Convention date, April 16, 1937. [Class 39 (i)] [Also in Group XX] The envelope of an electric gas discharge tube, or a screen associated therewith, is made of luminescent glass coated on the side adjacent the discharge with a luminescent pulverulent layer and provided on the other side with a fogged translucent layer, such as opal glass. In the example described, the tube 1 is made cylindrical and of a luminescent glass, such as green fluorescent uranium glass. The interior is provided with a coating 2 of red-luminescent zinc-beryllium silicate applied in powdered form with a binder such as glycerine, phosphoric acid or a readily softening enamel. The outside is coated with a layer 3 of opal glass. The tube comprises two electrodes 4 and is provided with a filling of rare gas and mercury vapour at low pressure. Where a screen associated with the tube is provided, this may be in the form of an envelope surrounding the tube and combined therewith to form a unit. Specification 473,587 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE495550X | 1937-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB495550A true GB495550A (en) | 1938-11-15 |
Family
ID=6544909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11365/38A Expired GB495550A (en) | 1937-04-16 | 1938-04-13 | Improvements in or relating to electric gas-discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB495550A (en) |
-
1938
- 1938-04-13 GB GB11365/38A patent/GB495550A/en not_active Expired
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