FR1601926A - - Google Patents

Info

Publication number
FR1601926A
FR1601926A FR181939A FR1601926DA FR1601926A FR 1601926 A FR1601926 A FR 1601926A FR 181939 A FR181939 A FR 181939A FR 1601926D A FR1601926D A FR 1601926DA FR 1601926 A FR1601926 A FR 1601926A
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
Application number
FR181939A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR1601926A publication Critical patent/FR1601926A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
    • 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
    • A01G9/14—Greenhouses
    • A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
    • 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
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
FR181939A 1968-12-30 1968-12-30 Expired FR1601926A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR181939 1968-12-30

Publications (1)

Publication Number Publication Date
FR1601926A true FR1601926A (fr) 1970-09-21

Family

ID=8659421

Family Applications (1)

Application Number Title Priority Date Filing Date
FR181939A Expired FR1601926A (fr) 1968-12-30 1968-12-30

Country Status (1)

Country Link
FR (1) FR1601926A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615292A1 (fr) * 1987-05-14 1988-11-18 Simeray Janick Filtre optique d'absorption variable a commande mecanique
WO1994010621A1 (fr) * 1992-10-24 1994-05-11 Joo Sang Lim Ecran de regulation de lumiere a bandes de polarisation
FR2723612A1 (fr) * 1994-08-10 1996-02-16 Peugeot Ensemble de vitrage a opacite reglable.
FR2845036A1 (fr) * 2002-09-30 2004-04-02 Peugeot Citroen Automobiles Sa Pare soleil a plaques polarisantes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615292A1 (fr) * 1987-05-14 1988-11-18 Simeray Janick Filtre optique d'absorption variable a commande mecanique
WO1994010621A1 (fr) * 1992-10-24 1994-05-11 Joo Sang Lim Ecran de regulation de lumiere a bandes de polarisation
FR2723612A1 (fr) * 1994-08-10 1996-02-16 Peugeot Ensemble de vitrage a opacite reglable.
FR2845036A1 (fr) * 2002-09-30 2004-04-02 Peugeot Citroen Automobiles Sa Pare soleil a plaques polarisantes

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Legal Events

Date Code Title Description
ST Notification of lapse