GB876311A - Improvements in or relating to light sources - Google Patents
Improvements in or relating to light sourcesInfo
- Publication number
- GB876311A GB876311A GB796458A GB796458A GB876311A GB 876311 A GB876311 A GB 876311A GB 796458 A GB796458 A GB 796458A GB 796458 A GB796458 A GB 796458A GB 876311 A GB876311 A GB 876311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- gas
- coating
- march
- channels
- 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
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/08—Lamps in which a screen or coating is excited to luminesce by radioactive material located inside the vessel
-
- 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
- C09K11/04—Luminescent, e.g. electroluminescent, chemiluminescent materials containing natural or artificial radioactive elements or unspecified radioactive elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/26—Signs formed by electric discharge tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/42—Illuminated signs; Luminous advertising with light sources activated by non-visible radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J63/00—Cathode-ray or electron-stream lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0031—Tubes with material luminescing under electron bombardment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
876,311. Uses of luminescence. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 9, 1959 [March 12, 1958], No. 7964/58. Class 39(1). A light source comprises a gas-tight container 1, Fig. 1, a #-radioactive gas within the container and a coating of phosphorescent material 3 on a major portion of the internal surface of the container, the container being light transparent at least over the remainder 6 of the surface, the arrangement being such as to concentrate the emitted light. The coating 3 is of sufficient thickness to absorb substantially a11 the #-radiation incident from the gas on to the coating. As shown in Fig. 3 the container comprises a body 21 having channels 22a, 22b, 22c and 22d defining readable characters, with coatings 23a, 23b, 23c and 23d, and a plane light transparent cover common to all the channels and forming a gas tight lid therefor, provision being made at 24 for admitting the gas, preferably krypton-85 into the common cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB796458A GB876311A (en) | 1958-03-12 | 1958-03-12 | Improvements in or relating to light sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB796458A GB876311A (en) | 1958-03-12 | 1958-03-12 | Improvements in or relating to light sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB876311A true GB876311A (en) | 1961-08-30 |
Family
ID=9843159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB796458A Expired GB876311A (en) | 1958-03-12 | 1958-03-12 | Improvements in or relating to light sources |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB876311A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0001918A1 (en) * | 1977-11-08 | 1979-05-16 | Challenger Engineering Ltd | Underwater lamp and method for its manufacture |
| WO2012046175A1 (en) * | 2010-10-06 | 2012-04-12 | Koninklijke Philips Electronics N.V. | Light-emitting arrangement with organic phosphor |
-
1958
- 1958-03-12 GB GB796458A patent/GB876311A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0001918A1 (en) * | 1977-11-08 | 1979-05-16 | Challenger Engineering Ltd | Underwater lamp and method for its manufacture |
| WO2012046175A1 (en) * | 2010-10-06 | 2012-04-12 | Koninklijke Philips Electronics N.V. | Light-emitting arrangement with organic phosphor |
| US8941302B2 (en) | 2010-10-06 | 2015-01-27 | Koninklijke Philips N.V. | Light-emitting arrangement with organic phosphor |
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