FR2404165B1 - - Google Patents
Info
- Publication number
- FR2404165B1 FR2404165B1 FR7728918A FR7728918A FR2404165B1 FR 2404165 B1 FR2404165 B1 FR 2404165B1 FR 7728918 A FR7728918 A FR 7728918A FR 7728918 A FR7728918 A FR 7728918A FR 2404165 B1 FR2404165 B1 FR 2404165B1
- 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
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- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
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- 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
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7728918A FR2404165A1 (en) | 1977-09-26 | 1977-09-26 | Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7728918A FR2404165A1 (en) | 1977-09-26 | 1977-09-26 | Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2404165A1 FR2404165A1 (en) | 1979-04-20 |
FR2404165B1 true FR2404165B1 (en) | 1981-10-02 |
Family
ID=9195776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7728918A Granted FR2404165A1 (en) | 1977-09-26 | 1977-09-26 | Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2404165A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4335421A (en) * | 1980-03-17 | 1982-06-15 | Modia Joseph W | Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area |
US4622624A (en) * | 1983-06-10 | 1986-11-11 | Electri-Cable Assemblies, Inc. | Under shelf task lighting fixture |
NL9200579A (en) * | 1992-03-30 | 1993-10-18 | Simon Cornelis Van Putten | LIGHTING LUMINAIRE. |
FR2742213B1 (en) * | 1995-12-08 | 1998-02-27 | Hode Jean Pierre | CEILING REFLECTIVE OPTICS |
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1977
- 1977-09-26 FR FR7728918A patent/FR2404165A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2404165A1 (en) | 1979-04-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |