FR1271656A - Improvements to optical projection devices - Google Patents

Improvements to optical projection devices

Info

Publication number
FR1271656A
FR1271656A FR834884A FR834884A FR1271656A FR 1271656 A FR1271656 A FR 1271656A FR 834884 A FR834884 A FR 834884A FR 834884 A FR834884 A FR 834884A FR 1271656 A FR1271656 A FR 1271656A
Authority
FR
France
Prior art keywords
optical projection
projection devices
devices
optical
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
FR834884A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Priority to FR834884A priority Critical patent/FR1271656A/en
Application granted granted Critical
Publication of FR1271656A publication Critical patent/FR1271656A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR834884A 1960-08-03 1960-08-03 Improvements to optical projection devices Expired FR1271656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR834884A FR1271656A (en) 1960-08-03 1960-08-03 Improvements to optical projection devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR834884A FR1271656A (en) 1960-08-03 1960-08-03 Improvements to optical projection devices

Publications (1)

Publication Number Publication Date
FR1271656A true FR1271656A (en) 1961-09-15

Family

ID=8736825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR834884A Expired FR1271656A (en) 1960-08-03 1960-08-03 Improvements to optical projection devices

Country Status (1)

Country Link
FR (1) FR1271656A (en)

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