FR71569E - Lighting diffuser and its manufacturing process - Google Patents
Lighting diffuser and its manufacturing processInfo
- Publication number
- FR71569E FR71569E FR71569DA FR71569E FR 71569 E FR71569 E FR 71569E FR 71569D A FR71569D A FR 71569DA FR 71569 E FR71569 E FR 71569E
- Authority
- FR
- France
- Prior art keywords
- manufacturing process
- lighting diffuser
- diffuser
- lighting
- manufacturing
- 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
-
- 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
- F21V9/02—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for simulating daylight
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR71569T | 1957-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR71569E true FR71569E (en) | 1960-01-05 |
Family
ID=8703119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR71569D Expired FR71569E (en) | 1957-05-24 | 1957-05-24 | Lighting diffuser and its manufacturing process |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR71569E (en) |
-
1957
- 1957-05-24 FR FR71569D patent/FR71569E/en not_active Expired
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