FR2172415B1 - - Google Patents

Info

Publication number
FR2172415B1
FR2172415B1 FR7305689A FR7305689A FR2172415B1 FR 2172415 B1 FR2172415 B1 FR 2172415B1 FR 7305689 A FR7305689 A FR 7305689A FR 7305689 A FR7305689 A FR 7305689A FR 2172415 B1 FR2172415 B1 FR 2172415B1
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
FR7305689A
Other languages
French (fr)
Other versions
FR2172415A1 (en
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE Ltd
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 Pilkington PE Ltd filed Critical Pilkington PE Ltd
Publication of FR2172415A1 publication Critical patent/FR2172415A1/fr
Application granted granted Critical
Publication of FR2172415B1 publication Critical patent/FR2172415B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/002—Magnifying glasses
    • G02B25/004—Magnifying glasses having binocular arrangement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR7305689A 1972-02-17 1973-02-16 Expired FR2172415B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB751072A GB1389564A (en) 1972-02-17 1972-02-17 Lenses

Publications (2)

Publication Number Publication Date
FR2172415A1 FR2172415A1 (en) 1973-09-28
FR2172415B1 true FR2172415B1 (en) 1977-07-22

Family

ID=9834512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7305689A Expired FR2172415B1 (en) 1972-02-17 1973-02-16

Country Status (5)

Country Link
JP (1) JPS4897550A (en)
DE (1) DE2307598A1 (en)
FR (1) FR2172415B1 (en)
GB (1) GB1389564A (en)
NL (1) NL181054C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322135A (en) 1978-11-29 1982-03-30 Pilkington P. E. Limited Optical apparatus
US4392710A (en) 1979-11-22 1983-07-12 Pilkington P. E. Limited Optical apparatus
FR2535860B1 (en) * 1982-11-10 1986-02-28 Trt Telecom Radio Electr BIOCULAR MAGNIFIER

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1478704A (en) * 1921-08-13 1923-12-25 Zeiss Carl Fa Ocular

Also Published As

Publication number Publication date
JPS4897550A (en) 1973-12-12
DE2307598A1 (en) 1973-08-23
NL181054B (en) 1987-01-02
GB1389564A (en) 1975-04-03
NL7301679A (en) 1973-08-21
NL181054C (en) 1987-06-01
FR2172415A1 (en) 1973-09-28

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Legal Events

Date Code Title Description
ST Notification of lapse