FR768750A - Light production device - Google Patents
Light production deviceInfo
- Publication number
- FR768750A FR768750A FR768750DA FR768750A FR 768750 A FR768750 A FR 768750A FR 768750D A FR768750D A FR 768750DA FR 768750 A FR768750 A FR 768750A
- Authority
- FR
- France
- Prior art keywords
- production device
- light production
- light
- production
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
- F21V7/30—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings the coatings comprising photoluminescent substances
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE768750X | 1933-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR768750A true FR768750A (en) | 1934-08-11 |
Family
ID=6673791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR768750D Expired FR768750A (en) | 1933-02-17 | 1934-02-15 | Light production device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR768750A (en) |
-
1934
- 1934-02-15 FR FR768750D patent/FR768750A/en not_active Expired
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