BE867022A - Utilisation de feuilles de matieres plastiques chargees de perles de verre, pour la fabrication de plaques de diffusion de la lumiere - Google Patents

Utilisation de feuilles de matieres plastiques chargees de perles de verre, pour la fabrication de plaques de diffusion de la lumiere

Info

Publication number
BE867022A
BE867022A BE187646A BE187646A BE867022A BE 867022 A BE867022 A BE 867022A BE 187646 A BE187646 A BE 187646A BE 187646 A BE187646 A BE 187646A BE 867022 A BE867022 A BE 867022A
Authority
BE
Belgium
Prior art keywords
manufacture
light distribution
glass beads
plastic sheets
distribution plates
Prior art date
Application number
BE187646A
Other languages
English (en)
French (fr)
Original Assignee
Bayer Ag
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 by Bayer Ag filed Critical Bayer Ag
Publication of BE867022A publication Critical patent/BE867022A/xx

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/585—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres incorporation of light reflecting filler, e.g. lamellae to obtain pearlescent effet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0031—Refractive

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
BE187646A 1977-05-14 1978-05-12 Utilisation de feuilles de matieres plastiques chargees de perles de verre, pour la fabrication de plaques de diffusion de la lumiere BE867022A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772721885 DE2721885C3 (de) 1977-05-14 1977-05-14 Herstellung von Streulichtscheiben

Publications (1)

Publication Number Publication Date
BE867022A true BE867022A (fr) 1978-11-13

Family

ID=6008970

Family Applications (1)

Application Number Title Priority Date Filing Date
BE187646A BE867022A (fr) 1977-05-14 1978-05-12 Utilisation de feuilles de matieres plastiques chargees de perles de verre, pour la fabrication de plaques de diffusion de la lumiere

Country Status (2)

Country Link
BE (1) BE867022A (xx)
DE (1) DE2721885C3 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2539491Y2 (ja) * 1991-10-09 1997-06-25 惠和商工株式会社 光拡散シート材
JPS60192918A (ja) * 1984-03-14 1985-10-01 Hitachi Maxell Ltd 表示装置
DE19818009C2 (de) 1998-04-22 2003-05-22 Mcgavigan John Ltd Mehrschicht-Abdeckung für Mehrfachfunktions-Heckleuchten für Straßenfahrzeuge
DE102014205497B4 (de) * 2014-03-25 2018-02-22 Trumpf Gmbh + Co. Kg Werkstück mit NIR-Streuzentren in einem NIR-transparenten Werkstoff und Verfahren zum Erwärmen eines Werkstücks

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD76350A (xx) *
DE2359060B2 (de) * 1973-11-27 1978-03-02 Alkor Gmbh, 8000 Muenchen Matte und kratzfeste Filme oder Folien und Verfahren zu ihrer Herstellung
DE2531240C2 (de) * 1975-07-12 1984-07-26 Bayer Ag, 5090 Leverkusen Verfahren zum Herstellen von Streulichtscheiben
DE2534188C2 (de) * 1975-07-31 1990-08-23 Basf Ag, 6700 Ludwigshafen Formteile mit glatten Oberflächen aus glasfaserverstärkten Kunststoffen

Also Published As

Publication number Publication date
DE2721885C3 (de) 1981-12-24
DE2721885A1 (de) 1978-11-16
DE2721885B2 (xx) 1981-02-26

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BAYER A.G.

Effective date: 19930531