GB1310861A - Apparatus for use in projection - Google Patents

Apparatus for use in projection

Info

Publication number
GB1310861A
GB1310861A GB192971A GB192971A GB1310861A GB 1310861 A GB1310861 A GB 1310861A GB 192971 A GB192971 A GB 192971A GB 192971 A GB192971 A GB 192971A GB 1310861 A GB1310861 A GB 1310861A
Authority
GB
United Kingdom
Prior art keywords
mirror
screen
projector
light
jan
Prior art date
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
GB192971A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1310861A publication Critical patent/GB1310861A/en
Expired legal-status Critical Current

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
    • G03B21/14—Details
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
GB192971A 1970-01-14 1971-01-14 Apparatus for use in projection Expired GB1310861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT31370A AT311085B (de) 1970-01-14 1970-01-14 Projektionseinrichtung

Publications (1)

Publication Number Publication Date
GB1310861A true GB1310861A (en) 1973-03-21

Family

ID=3487245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB192971A Expired GB1310861A (en) 1970-01-14 1971-01-14 Apparatus for use in projection

Country Status (7)

Country Link
US (1) US3746437A (enrdf_load_stackoverflow)
JP (1) JPS5343047B1 (enrdf_load_stackoverflow)
AT (1) AT311085B (enrdf_load_stackoverflow)
DE (1) DE2064672C3 (enrdf_load_stackoverflow)
FR (1) FR2075559A5 (enrdf_load_stackoverflow)
GB (1) GB1310861A (enrdf_load_stackoverflow)
NL (1) NL7100080A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138160A (en) * 1983-03-11 1984-10-17 Jmc Compak Limited Rear projection display apparatus

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870411A (en) * 1973-02-26 1975-03-11 Motiva Ltd Collapsible slide projection theatre
JPS5312195Y2 (enrdf_load_stackoverflow) * 1973-11-08 1978-04-03
US4022526A (en) * 1975-01-09 1977-05-10 Bell & Howell Company Portable film strip projector
JPS53129335U (enrdf_load_stackoverflow) * 1977-03-18 1978-10-14
DE2933507A1 (de) * 1979-08-18 1981-03-26 MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG, 61239 Ober-Mörlen Zusammenklappbares mikrofiche-lesegeraet
FR2497371A1 (fr) * 1980-12-30 1982-07-02 Cii Honeywell Bull Systeme de visualisation ergonomique a correction automatique de la distance de lecture en fonction de l'inclinaison du visuel
DE3220168C2 (de) * 1982-05-28 1984-04-19 Agfa-Gevaert Ag, 5090 Leverkusen Gehäuse eines Dia- oder Schmalfilmprojektors für die wahlweise Bildschirm- oder Wandprojektion
FR2537737B1 (fr) * 1982-12-13 1985-08-30 Prestinox Sa Ensemble de protection directe et de retroprojection de diapositives transportable
ATE29794T1 (de) * 1983-06-24 1987-10-15 Stadelmann Ernst Gmbh Kassette zur aufnahme plattenfoermiger gegenstaende, insbesondere disketten.
FR2554608A1 (fr) * 1983-11-03 1985-05-10 Prestinox Sa Dispositif de retroprojection utilisable avec un projecteur de diapositives
US4531317A (en) * 1984-06-08 1985-07-30 Graphic Technology, Inc. Portable viewing apparatus
FR2615010B1 (fr) * 1987-05-07 1989-10-06 Pasqualini Bernard Bloc de projection prefabrique auto-positionne pour la visualisation de photos ou documents en diapositives
JP2012523588A (ja) * 2009-06-10 2012-10-04 長績科技股▲ふん▼有限公司 プロジェクター

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882004A (en) * 1959-04-14 Means for mounting objects that are
BE514105A (enrdf_load_stackoverflow) *
US999207A (en) * 1910-03-10 1911-08-01 John L Clark Folding box.
US2446693A (en) * 1942-01-05 1948-08-10 Harold G Davis Dishwashing machine
FR969793A (fr) * 1947-07-31 1950-12-26 Perfectionnements aux magasins pour éléments d'enregistrement sous forme de bande translucide
US2483947A (en) * 1947-10-18 1949-10-04 Turner Alonzo Robert Cover lift hinge
US2863356A (en) * 1951-08-30 1958-12-09 Ernest W Goldberg Shiftable film bed and optical system for projectors
US2861711A (en) * 1957-08-22 1958-11-25 Schneider & Co Dr Ing Lighting equipment and housing and hinges for same
FR1302576A (fr) * 1961-07-19 1962-08-31 Bac à couvercle escamotable pour fiches ou dossiers suspendus assemblé par glissière
US3195401A (en) * 1962-07-13 1965-07-20 Crystal M Lange Film projector with telescopic cabinet
US3203575A (en) * 1963-08-19 1965-08-31 Nat Lock Co Counterbalancing lid support
GB1092905A (en) * 1963-09-30 1967-11-29 Moviecol Sales Ltd Improvements in or relating to cinematographic apparatus
JPS4115005Y1 (enrdf_load_stackoverflow) * 1964-01-28 1966-07-13
US3375054A (en) * 1964-12-11 1968-03-26 Bohn Benton Inc Cartridge type sound motion picture projector
US3522982A (en) * 1965-08-18 1970-08-04 Bohn Benton Inc Collapsible screen assembly for portable motion picture projector
US3438022A (en) * 1966-07-07 1969-04-08 Teeg Research Inc Thermochromic display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138160A (en) * 1983-03-11 1984-10-17 Jmc Compak Limited Rear projection display apparatus

Also Published As

Publication number Publication date
NL7100080A (enrdf_load_stackoverflow) 1971-07-16
FR2075559A5 (enrdf_load_stackoverflow) 1971-10-08
AT311085B (de) 1973-10-25
US3746437A (en) 1973-07-17
DE2064672C3 (de) 1980-10-23
DE2064672A1 (enrdf_load_stackoverflow) 1971-07-22
DE2064672B2 (de) 1980-01-24
JPS5343047B1 (enrdf_load_stackoverflow) 1978-11-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee