GB1431368A - - Google Patents

Info

Publication number
GB1431368A
GB1431368A GB2100275A GB2100275A GB1431368A GB 1431368 A GB1431368 A GB 1431368A GB 2100275 A GB2100275 A GB 2100275A GB 2100275 A GB2100275 A GB 2100275A GB 1431368 A GB1431368 A GB 1431368A
Authority
GB
United Kingdom
Prior art keywords
eye
sept
piece
optical
heading
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
GB2100275A
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 filed Critical
Publication of GB1431368A publication Critical patent/GB1431368A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eye Examination Apparatus (AREA)
  • Lenses (AREA)

Abstract

1431368 Microscopic eye-piece AMERICAN OPTICAL CORP 3 Sept 1973 [11 Sept 1972] 21002/75 Divided out of 1421806 Heading G2J An eye-piece having a magnification of 10X, an apparent field of view of 52À3 degrees, a maximum exit pupil diameter of 1À6 mm, a Petzval radius of 5À4F and having an eye relief of 0À74F (F= focal length) has optical elements as shown (R1 = α). Optical data are given.
GB2100275A 1972-09-11 1973-09-03 Expired GB1431368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28820772A 1972-09-11 1972-09-11

Publications (1)

Publication Number Publication Date
GB1431368A true GB1431368A (en) 1976-04-07

Family

ID=23106202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2100275A Expired GB1431368A (en) 1972-09-11 1973-09-03

Country Status (2)

Country Link
JP (1) JPS4969148A (en)
GB (1) GB1431368A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5227918A (en) * 1988-11-10 1993-07-13 Olympus Optical Co., Ltd. Wide field eyepiece lens system
JP3250739B2 (en) * 1991-10-24 2002-01-28 オリンパス光学工業株式会社 Super wide field eyepiece for microscope

Also Published As

Publication number Publication date
JPS4969148A (en) 1974-07-04

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee