IT7823483A0 - INDICATOR PANELS. - Google Patents
INDICATOR PANELS.Info
- Publication number
- IT7823483A0 IT7823483A0 IT7823483A IT2348378A IT7823483A0 IT 7823483 A0 IT7823483 A0 IT 7823483A0 IT 7823483 A IT7823483 A IT 7823483A IT 2348378 A IT2348378 A IT 2348378A IT 7823483 A0 IT7823483 A0 IT 7823483A0
- Authority
- IT
- Italy
- Prior art keywords
- indicator panels
- panels
- indicator
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2174777 | 1977-05-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7823483A0 true IT7823483A0 (en) | 1978-05-17 |
IT1095891B IT1095891B (en) | 1985-08-17 |
Family
ID=10168119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23483/78A IT1095891B (en) | 1977-05-24 | 1978-05-17 | INDICATOR PANELS |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2822385A1 (en) |
FR (1) | FR2392460A1 (en) |
IT (1) | IT1095891B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4292951A (en) * | 1979-02-09 | 1981-10-06 | Gould George E | Fireplaces and attachments |
FR2539240B3 (en) * | 1983-01-06 | 1985-10-25 | Husson Michel | SYNOPTIC TABLE WITH LIGHT SCHEME |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2712188A (en) * | 1953-04-13 | 1955-07-05 | Edwin A Neugass | Instrument panel |
FR1135347A (en) * | 1955-04-25 | 1957-04-26 | Plasteck | Light board and manufacturing process of this board |
GB801526A (en) * | 1956-01-19 | 1958-09-17 | Fairey Aviat Co Ltd | Improvements relating to indicating panels |
FR1263414A (en) * | 1960-04-30 | 1961-06-09 | Nec S A | Improvements to the night lighting of the engraved dials illuminated by the edge |
FR2054877A5 (en) * | 1969-07-30 | 1971-05-07 | Arfina | Luminous panels illuminated through their section |
-
1978
- 1978-05-17 IT IT23483/78A patent/IT1095891B/en active
- 1978-05-23 DE DE19782822385 patent/DE2822385A1/en active Pending
- 1978-05-24 FR FR7815465A patent/FR2392460A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2392460A1 (en) | 1978-12-22 |
IT1095891B (en) | 1985-08-17 |
DE2822385A1 (en) | 1978-11-30 |
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