FR2269734B1 - - Google Patents

Info

Publication number
FR2269734B1
FR2269734B1 FR7507666A FR7507666A FR2269734B1 FR 2269734 B1 FR2269734 B1 FR 2269734B1 FR 7507666 A FR7507666 A FR 7507666A FR 7507666 A FR7507666 A FR 7507666A FR 2269734 B1 FR2269734 B1 FR 2269734B1
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.)
Expired
Application number
FR7507666A
Other languages
French (fr)
Other versions
FR2269734A1 (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.)
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
Priority claimed from JP1974044540U external-priority patent/JPS5419869Y2/ja
Priority claimed from JP49051532A external-priority patent/JPS50144440A/ja
Priority claimed from JP49142170A external-priority patent/JPS5168229A/ja
Application filed by Individual filed Critical Individual
Publication of FR2269734A1 publication Critical patent/FR2269734A1/fr
Application granted granted Critical
Publication of FR2269734B1 publication Critical patent/FR2269734B1/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR7507666A 1974-04-18 1975-03-12 Expired FR2269734B1 (https=)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1974044540U JPS5419869Y2 (https=) 1974-04-18 1974-04-18
JP49051532A JPS50144440A (https=) 1974-05-08 1974-05-08
JP49142170A JPS5168229A (https=) 1974-12-10 1974-12-10

Publications (2)

Publication Number Publication Date
FR2269734A1 FR2269734A1 (https=) 1975-11-28
FR2269734B1 true FR2269734B1 (https=) 1977-04-15

Family

ID=27291938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7507666A Expired FR2269734B1 (https=) 1974-04-18 1975-03-12

Country Status (3)

Country Link
DE (1) DE2511574A1 (https=)
FR (1) FR2269734B1 (https=)
GB (1) GB1496415A (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165153A (en) * 1978-04-25 1979-08-21 Polaroid Corporation Translucent screen
DE102010009944A1 (de) 2010-03-04 2011-09-08 Jürgen Daszinnies Auf-Projektionswand für zwei- oder dreidimensionale Projektionen

Also Published As

Publication number Publication date
GB1496415A (en) 1977-12-30
FR2269734A1 (https=) 1975-11-28
DE2511574A1 (de) 1975-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse