FR2030621A5 - - Google Patents

Info

Publication number
FR2030621A5
FR2030621A5 FR6939146A FR6939146A FR2030621A5 FR 2030621 A5 FR2030621 A5 FR 2030621A5 FR 6939146 A FR6939146 A FR 6939146A FR 6939146 A FR6939146 A FR 6939146A FR 2030621 A5 FR2030621 A5 FR 2030621A5
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.)
Expired
Application number
FR6939146A
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to FR6939146A priority Critical patent/FR2030621A5/fr
Application granted granted Critical
Publication of FR2030621A5 publication Critical patent/FR2030621A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/40—Optical focusing aids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR6939146A 1969-11-14 1969-11-14 Expired FR2030621A5 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6939146A FR2030621A5 (de) 1969-11-14 1969-11-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6939146A FR2030621A5 (de) 1969-11-14 1969-11-14

Publications (1)

Publication Number Publication Date
FR2030621A5 true FR2030621A5 (de) 1970-11-13

Family

ID=9043034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6939146A Expired FR2030621A5 (de) 1969-11-14 1969-11-14

Country Status (1)

Country Link
FR (1) FR2030621A5 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226964A1 (de) * 1971-06-01 1972-12-14 Canon K.K., Tokio Fokussiereinrichtung für optische Instrumente

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226964A1 (de) * 1971-06-01 1972-12-14 Canon K.K., Tokio Fokussiereinrichtung für optische Instrumente

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