FR428475A - projection screen - Google Patents

projection screen

Info

Publication number
FR428475A
FR428475A FR428475A FR428475DA FR428475A FR 428475 A FR428475 A FR 428475A FR 428475 A FR428475 A FR 428475A FR 428475D A FR428475D A FR 428475DA FR 428475 A FR428475 A FR 428475A
Authority
FR
France
Prior art keywords
projection screen
projection
screen
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
FR428475A
Other languages
French (fr)
Inventor
Sigge H Lunden
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.)
SIGGE H LUNDEN
Original Assignee
SIGGE H LUNDEN
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 SIGGE H LUNDEN filed Critical SIGGE H LUNDEN
Application granted granted Critical
Publication of FR428475A publication Critical patent/FR428475A/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR428475A 1911-04-14 1911-04-14 projection screen Expired FR428475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR428475T 1911-04-14

Publications (1)

Publication Number Publication Date
FR428475A true FR428475A (en) 1911-08-31

Family

ID=1470872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR428475A Expired FR428475A (en) 1911-04-14 1911-04-14 projection screen

Country Status (1)

Country Link
FR (1) FR428475A (en)

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