FR936135A - Autofocus device for magnifying devices - Google Patents

Autofocus device for magnifying devices

Info

Publication number
FR936135A
FR936135A FR936135DA FR936135A FR 936135 A FR936135 A FR 936135A FR 936135D A FR936135D A FR 936135DA FR 936135 A FR936135 A FR 936135A
Authority
FR
France
Prior art keywords
autofocus device
magnifying devices
magnifying
devices
autofocus
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)
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.)
Alsacienne De Construction D A
Original Assignee
Alsacienne De Construction D A
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 Alsacienne De Construction D A filed Critical Alsacienne De Construction D A
Application granted granted Critical
Publication of FR936135A publication Critical patent/FR936135A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/34—Means for automatic focusing therefor
    • G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR936135D 1946-11-15 1946-11-15 Autofocus device for magnifying devices Expired FR936135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR936135T 1946-11-15

Publications (1)

Publication Number Publication Date
FR936135A true FR936135A (en) 1948-07-09

Family

ID=9457209

Family Applications (1)

Application Number Title Priority Date Filing Date
FR936135D Expired FR936135A (en) 1946-11-15 1946-11-15 Autofocus device for magnifying devices

Country Status (1)

Country Link
FR (1) FR936135A (en)

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