FR547944A - - Google Patents
Info
- Publication number
- FR547944A FR547944A FR547944DA FR547944A FR 547944 A FR547944 A FR 547944A FR 547944D A FR547944D A FR 547944DA FR 547944 A FR547944 A FR 547944A
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR547944A true FR547944A (de) | 1922-12-28 |
Family
ID=1538091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR547944D Expired FR547944A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR547944A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0440274A1 (de) * | 1990-02-02 | 1991-08-07 | Poot Lichtenergie B.V. | Reflektor |
-
0
- FR FR547944D patent/FR547944A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0440274A1 (de) * | 1990-02-02 | 1991-08-07 | Poot Lichtenergie B.V. | Reflektor |