FR347754A - Focusing device applicable to cameras - Google Patents

Focusing device applicable to cameras

Info

Publication number
FR347754A
FR347754A FR347754DA FR347754A FR 347754 A FR347754 A FR 347754A FR 347754D A FR347754D A FR 347754DA FR 347754 A FR347754 A FR 347754A
Authority
FR
France
Prior art keywords
cameras
focusing device
device applicable
applicable
focusing
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
Albin Perlich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR347754A publication Critical patent/FR347754A/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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR347754D 1904-11-09 1904-11-09 Focusing device applicable to cameras Expired FR347754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR347754T 1904-11-09

Publications (1)

Publication Number Publication Date
FR347754A true FR347754A (en) 1905-03-22

Family

ID=1396371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR347754D Expired FR347754A (en) 1904-11-09 1904-11-09 Focusing device applicable to cameras

Country Status (1)

Country Link
FR (1) FR347754A (en)

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