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 (pt
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 (pt)

Applications Claiming Priority (3)

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

Publications (2)

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

Family

ID=27291938

Family Applications (1)

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

Country Status (3)

Country Link
DE (1) DE2511574A1 (pt)
FR (1) FR2269734B1 (pt)
GB (1) GB1496415A (pt)

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
DE2511574A1 (de) 1975-10-30
FR2269734A1 (pt) 1975-11-28

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Legal Events

Date Code Title Description
ST Notification of lapse