FR775225A - Device for lighting elongated diffusing surfaces - Google Patents
Device for lighting elongated diffusing surfacesInfo
- Publication number
- FR775225A FR775225A FR775225DA FR775225A FR 775225 A FR775225 A FR 775225A FR 775225D A FR775225D A FR 775225DA FR 775225 A FR775225 A FR 775225A
- Authority
- FR
- France
- Prior art keywords
- lighting
- diffusing surfaces
- elongated
- elongated diffusing
- lighting elongated
- 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
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR775225T | 1933-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR775225A true FR775225A (en) | 1934-12-21 |
Family
ID=9200324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR775225D Expired FR775225A (en) | 1933-09-19 | 1933-09-19 | Device for lighting elongated diffusing surfaces |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR775225A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0426433A2 (en) * | 1989-10-30 | 1991-05-08 | Minnesota Mining And Manufacturing Company | Light fixture for externally illuminated sign |
EP0515723A1 (en) * | 1990-01-26 | 1992-12-02 | Dimension Technologies, Inc. | Illumination for transmissive displays |
-
1933
- 1933-09-19 FR FR775225D patent/FR775225A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0426433A2 (en) * | 1989-10-30 | 1991-05-08 | Minnesota Mining And Manufacturing Company | Light fixture for externally illuminated sign |
EP0426433A3 (en) * | 1989-10-30 | 1991-08-28 | Minnesota Mining And Manufacturing Company | Light fixture for externally illuminated sign |
EP0515723A1 (en) * | 1990-01-26 | 1992-12-02 | Dimension Technologies, Inc. | Illumination for transmissive displays |
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