FR456592A - écran diffuseur de lumière - Google Patents

écran diffuseur de lumière

Info

Publication number
FR456592A
FR456592A FR456592A FR456592DA FR456592A FR 456592 A FR456592 A FR 456592A FR 456592 A FR456592 A FR 456592A FR 456592D A FR456592D A FR 456592DA FR 456592 A FR456592 A FR 456592A
Authority
FR
France
Prior art keywords
light diffusing
diffusing screen
screen
light
diffusing
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
FR456592A
Other languages
English (en)
Inventor
Rosario Federico
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR456592A publication Critical patent/FR456592A/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
    • G03B21/62—Translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR456592A 1912-03-12 1913-03-10 écran diffuseur de lumière Expired FR456592A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT456592X 1912-03-12

Publications (1)

Publication Number Publication Date
FR456592A true FR456592A (fr) 1913-08-29

Family

ID=1496369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR456592A Expired FR456592A (fr) 1912-03-12 1913-03-10 écran diffuseur de lumière

Country Status (1)

Country Link
FR (1) FR456592A (fr)

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