FR2491219B1 - - Google Patents
Info
- Publication number
- FR2491219B1 FR2491219B1 FR8020915A FR8020915A FR2491219B1 FR 2491219 B1 FR2491219 B1 FR 2491219B1 FR 8020915 A FR8020915 A FR 8020915A FR 8020915 A FR8020915 A FR 8020915A FR 2491219 B1 FR2491219 B1 FR 2491219B1
- 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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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/22—Shades or blinds for greenhouses, or the like
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8020915A FR2491219A1 (fr) | 1980-09-30 | 1980-09-30 | Dispositif pour la filtration de rayonnements, notamment de rayonnements solaires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8020915A FR2491219A1 (fr) | 1980-09-30 | 1980-09-30 | Dispositif pour la filtration de rayonnements, notamment de rayonnements solaires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2491219A1 FR2491219A1 (fr) | 1982-04-02 |
| FR2491219B1 true FR2491219B1 (show.php) | 1983-12-16 |
Family
ID=9246415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8020915A Granted FR2491219A1 (fr) | 1980-09-30 | 1980-09-30 | Dispositif pour la filtration de rayonnements, notamment de rayonnements solaires |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2491219A1 (show.php) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348538A1 (en) * | 1988-06-27 | 1990-01-03 | Ryszard Wojcik | Method of natural light correction in rooms |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL34589A (en) * | 1969-08-28 | 1973-01-30 | American Optical Corp | Optical filter for infrared and near infrared wavelengths |
| BE755563A (fr) * | 1969-09-02 | 1971-03-01 | Polaroid Corp | Dispositif de filtrage variable de lumiere |
| US3951520A (en) * | 1974-10-16 | 1976-04-20 | E. I. Du Pont De Nemours And Company | Color imaging using the Christiansen effect |
| US4046567A (en) * | 1976-08-02 | 1977-09-06 | E. I. Du Pont De Nemours And Company | Christiansen cells containing epoxy gelling agents |
| CH613352B (de) * | 1977-07-26 | Bbc Brown Boveri & Cie | Geraet mit fluessigkristall-anzeige. | |
| FR2412859A1 (fr) * | 1977-12-23 | 1979-07-20 | Goldie Alain | Element optique constitue par une cellule transparente contenant un fluide ou un gel et ses applications |
-
1980
- 1980-09-30 FR FR8020915A patent/FR2491219A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2491219A1 (fr) | 1982-04-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |