FR2272412A1 - - Google Patents

Info

Publication number
FR2272412A1
FR2272412A1 FR7516159A FR7516159A FR2272412A1 FR 2272412 A1 FR2272412 A1 FR 2272412A1 FR 7516159 A FR7516159 A FR 7516159A FR 7516159 A FR7516159 A FR 7516159A FR 2272412 A1 FR2272412 A1 FR 2272412A1
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.)
Granted
Application number
FR7516159A
Other languages
French (fr)
Other versions
FR2272412B3 (enExample
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.)
STEINER FILM INH S STEINER
Original Assignee
STEINER FILM INH S STEINER
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 STEINER FILM INH S STEINER filed Critical STEINER FILM INH S STEINER
Publication of FR2272412A1 publication Critical patent/FR2272412A1/fr
Application granted granted Critical
Publication of FR2272412B3 publication Critical patent/FR2272412B3/fr
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
    • G03B21/10—Projectors with built-in or built-on screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
FR7516159A 1974-05-24 1975-05-23 Expired FR2272412B3 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7418110 1974-05-24

Publications (2)

Publication Number Publication Date
FR2272412A1 true FR2272412A1 (enExample) 1975-12-19
FR2272412B3 FR2272412B3 (enExample) 1978-12-01

Family

ID=6645139

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516159A Expired FR2272412B3 (enExample) 1974-05-24 1975-05-23

Country Status (3)

Country Link
US (1) US3985430A (enExample)
FR (1) FR2272412B3 (enExample)
IT (1) IT1033884B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1865374A1 (en) * 2006-06-08 2007-12-12 Hitachi, Ltd. Projection type image display device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640227C3 (de) * 1976-09-07 1980-03-20 Rolf 7050 Waiblingen Dieckhoff Vorführgerät, insbesondere audiovisuelles Informationsgerät
US4174889A (en) * 1977-10-31 1979-11-20 Northern Engraving Company Travel monitor
US4217039A (en) * 1978-10-16 1980-08-12 Bell & Howell Company Microfiche viewer with rotatable base
US4573748A (en) * 1983-08-08 1986-03-04 Giuseppe Biraghi Container for a rotating transparency projector fixable at a selected height on a vertical guide
TWI312439B (en) * 2006-06-06 2009-07-21 Coretronic Corporatio Projection apparatus
US20240369205A1 (en) * 2021-05-01 2024-11-07 April Mitchell Illuminating device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592444A (en) * 1950-04-12 1952-04-08 John J Matelena Inflatable aerial projection display device
US3472588A (en) * 1966-08-02 1969-10-14 Lester A Dine Lectern-projector combination
US3586432A (en) * 1969-04-01 1971-06-22 Pentes Design Inc Self-contained image projecting apparatus and rear projection screen therefor
US3848980A (en) * 1971-08-24 1974-11-19 Polaroid Corp Projector apparatus and system employing unique screen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1865374A1 (en) * 2006-06-08 2007-12-12 Hitachi, Ltd. Projection type image display device
US7589904B2 (en) 2006-06-08 2009-09-15 Hitachi, Ltd. Projection type image display device
EP2299321A3 (en) * 2006-06-08 2011-05-04 Hitachi, Ltd. Projection type image display device
EP2299320A3 (en) * 2006-06-08 2011-05-04 Hitachi, Ltd. Projection type image display device
EP2270587A3 (en) * 2006-06-08 2011-12-28 Hitachi, Ltd. Projection type image display device
CN101840139B (zh) * 2006-06-08 2013-03-27 株式会社日立制作所 投射型图像显示装置

Also Published As

Publication number Publication date
IT1033884B (it) 1979-08-10
FR2272412B3 (enExample) 1978-12-01
US3985430A (en) 1976-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse