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FR420912A - Advanced eyepiece for optical instruments - Google Patents

Advanced eyepiece for optical instruments

Info

Publication number
FR420912A
FR420912A FR420912A FR420912DA FR420912A FR 420912 A FR420912 A FR 420912A FR 420912 A FR420912 A FR 420912A FR 420912D A FR420912D A FR 420912DA FR 420912 A FR420912 A FR 420912A
Authority
FR
France
Prior art keywords
eyepiece
advanced
optical instruments
instruments
optical
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
FR420912A
Other languages
French (fr)
Inventor
Francis Arthur Rich
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 FR420912A publication Critical patent/FR420912A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/001—Eyepieces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)
FR420912A 1909-10-01 1910-09-30 Advanced eyepiece for optical instruments Expired FR420912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ26672 1909-10-01

Publications (1)

Publication Number Publication Date
FR420912A true FR420912A (en) 1911-02-10

Family

ID=63359333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR420912A Expired FR420912A (en) 1909-10-01 1910-09-30 Advanced eyepiece for optical instruments

Country Status (3)

Country Link
AU (1) AU1948210B (en)
FR (1) FR420912A (en)
GB (1) GB191022407A (en)

Also Published As

Publication number Publication date
AU1948210B (en) 1911-01-10
GB191022407A (en) 1911-09-27

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