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 (https=
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 (https=)

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=6645139

Family Applications (1)

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

Country Status (3)

Country Link
US (1) US3985430A (https=)
FR (1) FR2272412B3 (https=)
IT (1) IT1033884B (https=)

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 (https=) 1978-12-01
US3985430A (en) 1976-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse