IT1087294B - Schermo di proiezione e procedimento per la sua fabbricazione - Google Patents

Schermo di proiezione e procedimento per la sua fabbricazione

Info

Publication number
IT1087294B
IT1087294B IT29463/77A IT2946377A IT1087294B IT 1087294 B IT1087294 B IT 1087294B IT 29463/77 A IT29463/77 A IT 29463/77A IT 2946377 A IT2946377 A IT 2946377A IT 1087294 B IT1087294 B IT 1087294B
Authority
IT
Italy
Prior art keywords
procedure
manufacture
projection screen
projection
screen
Prior art date
Application number
IT29463/77A
Other languages
English (en)
Original Assignee
Landis & Gyr 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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Application granted granted Critical
Publication of IT1087294B publication Critical patent/IT1087294B/it

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
    • G03B21/602—Lenticular screens
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Optical Elements Other Than Lenses (AREA)
IT29463/77A 1976-11-16 1977-11-09 Schermo di proiezione e procedimento per la sua fabbricazione IT1087294B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1437976A CH604205A5 (it) 1976-11-16 1976-11-16

Publications (1)

Publication Number Publication Date
IT1087294B true IT1087294B (it) 1985-06-04

Family

ID=4400313

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29463/77A IT1087294B (it) 1976-11-16 1977-11-09 Schermo di proiezione e procedimento per la sua fabbricazione

Country Status (8)

Country Link
US (1) US4297001A (it)
JP (2) JPS5363015A (it)
CH (1) CH604205A5 (it)
DE (1) DE2655527C2 (it)
FR (1) FR2370997A1 (it)
GB (1) GB1569468A (it)
IT (1) IT1087294B (it)
SE (1) SE421457B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561929A (en) * 1979-06-20 1981-01-10 Sharp Corp Screen device
US4548470A (en) * 1984-06-11 1985-10-22 Apogee, Inc. Projection screen
JPS63120243U (it) * 1987-01-29 1988-08-03
EP0312046B1 (en) * 1987-10-14 1994-07-27 Hitachi, Ltd. Apparatus and method for inspecting defect of mounted component with slit light
US6307674B1 (en) * 1994-03-29 2001-10-23 Lasersurge, Inc. Video display system for locating a projected image adjacent a surgical field
EP1692566A4 (en) * 2003-10-09 2009-02-25 Merlin Technology Ltd Liabilit PROJECTION RECEPTION SURFACE, WHICH WORKS IN AMBIENT LIGHT
WO2005049334A2 (en) * 2003-11-18 2005-06-02 Merlin Technologies, Inc. A reflective multi-image surface
US7619824B2 (en) * 2003-11-18 2009-11-17 Merlin Technology Limited Liability Company Variable optical arrays and variable manufacturing methods
US7268950B2 (en) * 2003-11-18 2007-09-11 Merlin Technology Limited Liability Company Variable optical arrays and variable manufacturing methods
DE10359084A1 (de) * 2003-12-17 2005-07-21 Hahn, Harry K., Dipl.-Ing. (FH) Bildwand
JP4285259B2 (ja) * 2004-01-30 2009-06-24 凸版印刷株式会社 反射型スクリーン
US7911693B2 (en) * 2006-03-20 2011-03-22 Hewlett-Packard Development Company, L.P. Ambient light absorbing screen
US7864420B2 (en) * 2007-07-20 2011-01-04 Seiko Epson Corporation Screen
WO2013063235A1 (en) * 2011-10-27 2013-05-02 3M Innovative Properties Company Polarization preserving 3d screen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2328219A (en) * 1938-10-29 1943-08-31 Polaroid Corp Light polarizer and process of manufacture
US2454515A (en) * 1938-10-29 1948-11-23 Polaroid Corp Light-polarizing sheet of molecularly oriented transparent linear high polymer dyed with dichroic substance and process of manufacture
US2237567A (en) * 1939-05-04 1941-04-08 Polaroid Corp Light polarizer and process of manufacturing the same
FR927797A (fr) * 1945-06-12 1947-11-10 Du Mont Allen B Lab Inc Perfectionnement aux écrans de projection et procédé de fabrication de ces écrans
US3154461A (en) * 1960-03-07 1964-10-27 Minnesota Mining & Mfg Matte-finish polymeric film and method of forming the same
US3214234A (en) * 1963-05-21 1965-10-26 Phillips Petroleum Co Oriented foamed polyolefin extrudates and the production and dyeing of the same
US3408132A (en) * 1966-11-21 1968-10-29 Eastman Kodak Co Projection screen
US3607596A (en) * 1968-07-10 1971-09-21 Fmc Corp Cellular article
US3622223A (en) * 1970-01-16 1971-11-23 Brakell Products Pty Ltd Projection screens
CA971012A (en) * 1972-03-27 1975-07-15 Robert N. Wolfe Projection screen fabrication techniques
JPS49109037A (it) * 1973-02-19 1974-10-17
JPS49131437A (it) * 1973-04-20 1974-12-17

Also Published As

Publication number Publication date
US4297001A (en) 1981-10-27
DE2655527C2 (de) 1978-12-21
DE2655527B1 (de) 1978-04-27
SE7712655L (sv) 1978-05-17
SE421457B (sv) 1981-12-21
FR2370997A1 (fr) 1978-06-09
JPS5363015A (en) 1978-06-06
JPS57135941A (en) 1982-08-21
CH604205A5 (it) 1978-08-31
GB1569468A (en) 1980-06-18

Similar Documents

Publication Publication Date Title
AT355833B (de) Durchlicht-projektionsschirm
IT1085966B (it) Tessuto composito e procedimento per la sua fabbricazione
FR2309893A1 (fr) Ecran de projection
DK417078A (da) Billedbetragtningsomskifter
IT1043124B (it) Stoppino e procedimento per la sua produzigne
IT1084178B (it) Poli-di carbo-monofluoruro e procedimento per la sua preparazione
IT1041597B (it) Retino per serigrafia e procedimento per la sua fabbricazione
IT1087294B (it) Schermo di proiezione e procedimento per la sua fabbricazione
IT1071907B (it) Collettore e procedimento per la sua fabbricazione
IT1094122B (it) Procedimento di sviluppo fotografico e composizioni polimere per la sua realizzazione
IT1101823B (it) Procedimento e dispositivo per la riproduzione di diapositive
IT1080901B (it) Lampada per esterni e metodo per la sua fabbricazione
IT1093109B (it) Fotocellula e procedimento per la sua fabbricazione
IT1116608B (it) Antitraspirante e procedimento per la sua preparazione
FR2349155A1 (fr) Ecran de projection
IT1088169B (it) Proiettore
SE421838B (sv) Projektor
IT1074812B (it) Dispositivo di proiezione
IT1078851B (it) Composizione deodorante e procedimento per la sua applicazione
IT1117955B (it) Cemento e procedimento per la sua produzione
IT1077719B (it) Stromento giroscopico e procedimento per la sua applicazione
IT1084674B (it) Condensatore elettrico autocicatrizzante e procedimento per la sua fabbricazione
IT1085083B (it) Monossido di piombo e procedimento per la sua preparazione
FR2349855A1 (fr) Projecteur
IT1073471B (it) Tubolare per cicli e procediemnto per la sua fabbricazione