FR1151997A - écrans de projection - Google Patents

écrans de projection

Info

Publication number
FR1151997A
FR1151997A FR1151997DA FR1151997A FR 1151997 A FR1151997 A FR 1151997A FR 1151997D A FR1151997D A FR 1151997DA FR 1151997 A FR1151997 A FR 1151997A
Authority
FR
France
Prior art keywords
projection screens
screens
projection
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
Other languages
English (en)
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.)
Andrew Smith Harkness Ltd
Original Assignee
Andrew Smith Harkness Ltd
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 Andrew Smith Harkness Ltd filed Critical Andrew Smith Harkness Ltd
Application granted granted Critical
Publication of FR1151997A publication Critical patent/FR1151997A/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)
FR1151997D 1955-09-16 1956-06-29 écrans de projection Expired FR1151997A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1151997X 1955-09-16

Publications (1)

Publication Number Publication Date
FR1151997A true FR1151997A (fr) 1958-02-07

Family

ID=19870417

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1151997D Expired FR1151997A (fr) 1955-09-16 1956-06-29 écrans de projection

Country Status (1)

Country Link
FR (1) FR1151997A (fr)

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