FR2070449A6 - - Google Patents
Info
- Publication number
- FR2070449A6 FR2070449A6 FR6942017A FR6942017A FR2070449A6 FR 2070449 A6 FR2070449 A6 FR 2070449A6 FR 6942017 A FR6942017 A FR 6942017A FR 6942017 A FR6942017 A FR 6942017A FR 2070449 A6 FR2070449 A6 FR 2070449A6
- Authority
- FR
- France
- 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
- 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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6942017A FR2070449A6 (en) | 1969-12-04 | 1969-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6942017A FR2070449A6 (en) | 1969-12-04 | 1969-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2070449A6 true FR2070449A6 (en) | 1971-09-10 |
Family
ID=9044124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6942017A Expired FR2070449A6 (en) | 1969-12-04 | 1969-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2070449A6 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3112404A1 (en) * | 1981-03-28 | 1982-10-07 | Teldix Gmbh | LARGE LIGHTING DEVICE |
| DE3941653A1 (en) * | 1989-12-16 | 1991-06-20 | Teldix Gmbh | Map reading aid incorporating notch in transparent wedge - with roughening or matt finish to facets through which light enters from lamp at broad end |
-
1969
- 1969-12-04 FR FR6942017A patent/FR2070449A6/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3112404A1 (en) * | 1981-03-28 | 1982-10-07 | Teldix Gmbh | LARGE LIGHTING DEVICE |
| DE3941653A1 (en) * | 1989-12-16 | 1991-06-20 | Teldix Gmbh | Map reading aid incorporating notch in transparent wedge - with roughening or matt finish to facets through which light enters from lamp at broad end |