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FR1446992A - Method, apparatus and materials for projecting light images - Google Patents

Method, apparatus and materials for projecting light images

Info

Publication number
FR1446992A
FR1446992A FR31725A FR31725A FR1446992A FR 1446992 A FR1446992 A FR 1446992A FR 31725 A FR31725 A FR 31725A FR 31725 A FR31725 A FR 31725A FR 1446992 A FR1446992 A FR 1446992A
Authority
FR
France
Prior art keywords
materials
projecting light
light images
images
projecting
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
FR31725A
Other languages
French (fr)
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to FR31725A priority Critical patent/FR1446992A/en
Application granted granted Critical
Publication of FR1446992A publication Critical patent/FR1446992A/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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR31725A 1965-09-17 1965-09-17 Method, apparatus and materials for projecting light images Expired FR1446992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR31725A FR1446992A (en) 1965-09-17 1965-09-17 Method, apparatus and materials for projecting light images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR31725A FR1446992A (en) 1965-09-17 1965-09-17 Method, apparatus and materials for projecting light images

Publications (1)

Publication Number Publication Date
FR1446992A true FR1446992A (en) 1966-07-22

Family

ID=8588529

Family Applications (1)

Application Number Title Priority Date Filing Date
FR31725A Expired FR1446992A (en) 1965-09-17 1965-09-17 Method, apparatus and materials for projecting light images

Country Status (1)

Country Link
FR (1) FR1446992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517083A1 (en) * 1981-11-26 1983-05-27 Sony Corp RETROPROJECTION APPARATUS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517083A1 (en) * 1981-11-26 1983-05-27 Sony Corp RETROPROJECTION APPARATUS

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