GB2329996B - Illuminated signs - Google Patents
Illuminated signsInfo
- Publication number
- GB2329996B GB2329996B GB9821085A GB9821085A GB2329996B GB 2329996 B GB2329996 B GB 2329996B GB 9821085 A GB9821085 A GB 9821085A GB 9821085 A GB9821085 A GB 9821085A GB 2329996 B GB2329996 B GB 2329996B
- Authority
- GB
- United Kingdom
- Prior art keywords
- illuminated signs
- illuminated
- signs
- 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 - Lifetime
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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9720907.6A GB9720907D0 (en) | 1997-10-03 | 1997-10-03 | Illuminated signs |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9821085D0 GB9821085D0 (en) | 1998-11-18 |
GB2329996A GB2329996A (en) | 1999-04-07 |
GB2329996B true GB2329996B (en) | 2001-03-28 |
Family
ID=10819935
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9720907.6A Pending GB9720907D0 (en) | 1997-10-03 | 1997-10-03 | Illuminated signs |
GB9821085A Expired - Lifetime GB2329996B (en) | 1997-10-03 | 1998-09-30 | Illuminated signs |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9720907.6A Pending GB9720907D0 (en) | 1997-10-03 | 1997-10-03 | Illuminated signs |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE1011955A3 (en) |
GB (2) | GB9720907D0 (en) |
NL (1) | NL1010215C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPQ663800A0 (en) * | 2000-03-31 | 2000-05-04 | Legrand Minitronics Pty Ltd | Sign carrier for an emergency light |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2038527A (en) * | 1978-11-28 | 1980-07-23 | Nuttall D | Display devices |
GB2301692A (en) * | 1995-05-25 | 1996-12-11 | Rainford Group Plc | Illuminated signs |
EP0573051B1 (en) * | 1992-06-04 | 1997-01-29 | Tosoh Corporation | Back lighting device |
WO1997033268A1 (en) * | 1996-03-08 | 1997-09-12 | Ericsson, Inc. | Light guide for a display or keyboard |
-
1997
- 1997-10-03 GB GBGB9720907.6A patent/GB9720907D0/en active Pending
-
1998
- 1998-09-29 NL NL1010215A patent/NL1010215C2/en not_active IP Right Cessation
- 1998-09-30 GB GB9821085A patent/GB2329996B/en not_active Expired - Lifetime
- 1998-09-30 BE BE9800698A patent/BE1011955A3/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2038527A (en) * | 1978-11-28 | 1980-07-23 | Nuttall D | Display devices |
EP0573051B1 (en) * | 1992-06-04 | 1997-01-29 | Tosoh Corporation | Back lighting device |
GB2301692A (en) * | 1995-05-25 | 1996-12-11 | Rainford Group Plc | Illuminated signs |
WO1997033268A1 (en) * | 1996-03-08 | 1997-09-12 | Ericsson, Inc. | Light guide for a display or keyboard |
Also Published As
Publication number | Publication date |
---|---|
GB2329996A (en) | 1999-04-07 |
BE1011955A3 (en) | 2000-03-07 |
GB9720907D0 (en) | 1997-12-03 |
NL1010215C2 (en) | 1999-11-11 |
GB9821085D0 (en) | 1998-11-18 |
NL1010215A1 (en) | 1999-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20180929 |