FR946175A - Process for manufacturing multicellular reflective or refracting surfaces - Google Patents

Process for manufacturing multicellular reflective or refracting surfaces

Info

Publication number
FR946175A
FR946175A FR946175DA FR946175A FR 946175 A FR946175 A FR 946175A FR 946175D A FR946175D A FR 946175DA FR 946175 A FR946175 A FR 946175A
Authority
FR
France
Prior art keywords
reflective
refracting surfaces
multicellular
manufacturing
manufacturing multicellular
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
French (fr)
Inventor
Julien Saget
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 filed Critical
Application granted granted Critical
Publication of FR946175A publication Critical patent/FR946175A/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)
FR946175D 1947-04-23 1947-04-23 Process for manufacturing multicellular reflective or refracting surfaces Expired FR946175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR946175T 1947-04-23

Publications (1)

Publication Number Publication Date
FR946175A true FR946175A (en) 1949-05-25

Family

ID=9472751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR946175D Expired FR946175A (en) 1947-04-23 1947-04-23 Process for manufacturing multicellular reflective or refracting surfaces

Country Status (1)

Country Link
FR (1) FR946175A (en)

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