GB701526A - Improved illumination of instrument boards - Google Patents
Improved illumination of instrument boardsInfo
- Publication number
- GB701526A GB701526A GB4129/51A GB412951A GB701526A GB 701526 A GB701526 A GB 701526A GB 4129/51 A GB4129/51 A GB 4129/51A GB 412951 A GB412951 A GB 412951A GB 701526 A GB701526 A GB 701526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- refracted
- feb
- dial
- edge
- 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
- 238000005286 illumination Methods 0.000 title 1
- 239000000463 material Substances 0.000 abstract 2
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000012780 transparent material Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Measuring And Other Instruments (AREA)
Abstract
701,526. Applications of luminescence. SVENSKA AEROPLAN AKTIEBOLAGET. Feb. 20, 1951 [Feb. 20, 1950], No. 4129/51. Class 39(1) An illuminated instrument dial with fluorescent scale and indicator markings has a sheet of transparent material 6 coated or covered with opaque reflecting material and formed with apertures 8, 17 for the ultra-violet sources 13 and the dials 5 respectively. The radiation from source 13 reflected and refracted by the material 6 is refracted at the bevelled edge 10 on to the dial. A filter sheet 12 transmitting light of long wave length covers the panel and overlying this sheet is a metal screen 11 with openings opposite the scales. The straight bevel of the edge 10 may be modified to curve convexly or concavely, Figs. 3 and 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE701526X | 1950-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB701526A true GB701526A (en) | 1953-12-30 |
Family
ID=20315487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4129/51A Expired GB701526A (en) | 1950-02-20 | 1951-02-20 | Improved illumination of instrument boards |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB701526A (en) |
-
1951
- 1951-02-20 GB GB4129/51A patent/GB701526A/en not_active Expired
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