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 lumiereInfo
- 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
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)
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)
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)
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 |
-
1977
- 1977-05-14 DE DE19772721885 patent/DE2721885C3/de not_active Expired
-
1978
- 1978-05-12 BE BE187646A patent/BE867022A/xx not_active IP Right Cessation
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 |