GB1392437A - Indicator arrangements - Google Patents
Indicator arrangementsInfo
- Publication number
- GB1392437A GB1392437A GB3186371A GB3186371A GB1392437A GB 1392437 A GB1392437 A GB 1392437A GB 3186371 A GB3186371 A GB 3186371A GB 3186371 A GB3186371 A GB 3186371A GB 1392437 A GB1392437 A GB 1392437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light guides
- fibres
- phosphor
- guides
- emitters
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/305—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being the ends of optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
1392437 Matrix displays MARCONI CO Ltd 30 March 1972 [7 July 1971] 31863/71 Heading G5C An indicator arrangement includes a plurality of elongated light guides 1 at least a portion of the outer longitudinal surfaces of each guide being provided with a surface layer of phosphor, and means 2 for introducing exciting radiation into selectable ones of the light guides. The light guides may be fibres of glass or plastics material, may be in crossed array and woven to form a mesh, and ground at the cross over points 3, phosphor 4 being only at these regions. Phosphors may be lanthanum or barium fluoride doped with rare earths, and excitation sources of infra red GaAs emitters, at one or both ends of the guides. Fibres may be 1 mm. diameter, spaced four/cm. A map position indicator (Fig. 3, not shown), includes lead (7) activating emitters 2 to produce two crossing dotted lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3186371A GB1392437A (en) | 1971-07-07 | 1971-07-07 | Indicator arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3186371A GB1392437A (en) | 1971-07-07 | 1971-07-07 | Indicator arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1392437A true GB1392437A (en) | 1975-04-30 |
Family
ID=10329526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3186371A Expired GB1392437A (en) | 1971-07-07 | 1971-07-07 | Indicator arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1392437A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2417822A1 (en) * | 1978-02-17 | 1979-09-14 | Trigano Claude | Polychromatic image display system - uses fine grid or array of optical fibres producing interference phenomena |
| WO1995006931A1 (en) * | 1993-09-03 | 1995-03-09 | Commissariat A L'energie Atomique | Display device comprising means for converting a laser beam into visible, incoherent light |
| US20090322677A1 (en) * | 2006-08-10 | 2009-12-31 | Yeon-Keun Lee | Light guide plate for system inputting coordinate contactlessly, a system comprising the same and a method for inputting coordinate contactlessly using the same |
-
1971
- 1971-07-07 GB GB3186371A patent/GB1392437A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2417822A1 (en) * | 1978-02-17 | 1979-09-14 | Trigano Claude | Polychromatic image display system - uses fine grid or array of optical fibres producing interference phenomena |
| WO1995006931A1 (en) * | 1993-09-03 | 1995-03-09 | Commissariat A L'energie Atomique | Display device comprising means for converting a laser beam into visible, incoherent light |
| FR2709567A1 (en) * | 1993-09-03 | 1995-03-10 | Commissariat Energie Atomique | Visualization device with conversion of laser beam into visible and inconsistent light. |
| US5606634A (en) * | 1993-09-03 | 1997-02-25 | Commissariat A L'energie Atomique | Display unit for conversion of a laser beam into visible and incoherent light |
| US20090322677A1 (en) * | 2006-08-10 | 2009-12-31 | Yeon-Keun Lee | Light guide plate for system inputting coordinate contactlessly, a system comprising the same and a method for inputting coordinate contactlessly using the same |
| US8754852B2 (en) * | 2006-08-10 | 2014-06-17 | Lg Chem, Ltd. | Light guide plate for system inputting coordinate contactlessly, a system comprising the same and a method for inputting coordinate contactlessly using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |