GB1421806A - Optical lens systems centrifugal pump with means - Google Patents

Optical lens systems centrifugal pump with means

Info

Publication number
GB1421806A
GB1421806A GB4138073A GB4138073A GB1421806A GB 1421806 A GB1421806 A GB 1421806A GB 4138073 A GB4138073 A GB 4138073A GB 4138073 A GB4138073 A GB 4138073A GB 1421806 A GB1421806 A GB 1421806A
Authority
GB
United Kingdom
Prior art keywords
optical lens
centrifugal pump
lens systems
eye
sept
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
GB4138073A
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of GB1421806A publication Critical patent/GB1421806A/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)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

1421806 Microscope eye-piece AMERICAN OPTICAL CORP 3 Sept 1973 [11 Sept 1972] 41380/73 Heading G2J An eye-piece having a magnification of 6.3X, an apparent field of view of 38.6 degrees, a maximum exit pupil diameter of 2.65mm, a Petzval radius of 7.5F and having an eye relief of 0.47F (F = focal length) has optical elements as shown. Optical data are given.
GB4138073A 1972-09-11 1973-09-03 Optical lens systems centrifugal pump with means Expired GB1421806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28820872A 1972-09-11 1972-09-11

Publications (1)

Publication Number Publication Date
GB1421806A true GB1421806A (en) 1976-01-21

Family

ID=23106206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4138073A Expired GB1421806A (en) 1972-09-11 1973-09-03 Optical lens systems centrifugal pump with means

Country Status (3)

Country Link
JP (1) JPS4969149A (en)
AT (1) AT348272B (en)
GB (1) GB1421806A (en)

Also Published As

Publication number Publication date
JPS4969149A (en) 1974-07-04
ATA620073A (en) 1978-06-15
AT348272B (en) 1979-02-12

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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