FR2141708A1 - - Google Patents

Info

Publication number
FR2141708A1
FR2141708A1 FR7219415A FR7219415A FR2141708A1 FR 2141708 A1 FR2141708 A1 FR 2141708A1 FR 7219415 A FR7219415 A FR 7219415A FR 7219415 A FR7219415 A FR 7219415A FR 2141708 A1 FR2141708 A1 FR 2141708A1
Authority
FR
France
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.)
Granted
Application number
FR7219415A
Other languages
French (fr)
Other versions
FR2141708B1 (enExample
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of FR2141708A1 publication Critical patent/FR2141708A1/fr
Application granted granted Critical
Publication of FR2141708B1 publication Critical patent/FR2141708B1/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
    • G03B21/14—Details
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
FR7219415A 1971-06-04 1972-05-31 Expired FR2141708B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15010771A 1971-06-04 1971-06-04

Publications (2)

Publication Number Publication Date
FR2141708A1 true FR2141708A1 (enExample) 1973-01-26
FR2141708B1 FR2141708B1 (enExample) 1973-07-13

Family

ID=22533146

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7219415A Expired FR2141708B1 (enExample) 1971-06-04 1972-05-31

Country Status (2)

Country Link
DE (1) DE2227297A1 (enExample)
FR (1) FR2141708B1 (enExample)

Also Published As

Publication number Publication date
DE2227297A1 (de) 1972-12-28
FR2141708B1 (enExample) 1973-07-13

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Legal Events

Date Code Title Description
ST Notification of lapse