IT1046464B - Perfezionamento negli obiettivi fotografici a quattro elementi - Google Patents

Perfezionamento negli obiettivi fotografici a quattro elementi

Info

Publication number
IT1046464B
IT1046464B IT51265/72A IT5126572A IT1046464B IT 1046464 B IT1046464 B IT 1046464B IT 51265/72 A IT51265/72 A IT 51265/72A IT 5126572 A IT5126572 A IT 5126572A IT 1046464 B IT1046464 B IT 1046464B
Authority
IT
Italy
Prior art keywords
improvement
photographic objectives
element photographic
objectives
photographic
Prior art date
Application number
IT51265/72A
Other languages
English (en)
Italian (it)
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of IT1046464B publication Critical patent/IT1046464B/it

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G02B9/36—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- +
    • G02B9/44—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- + both - components being biconcave
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Camera Data Copying Or Recording (AREA)
IT51265/72A 1971-07-28 1972-06-30 Perfezionamento negli obiettivi fotografici a quattro elementi IT1046464B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16693371A 1971-07-28 1971-07-28

Publications (1)

Publication Number Publication Date
IT1046464B true IT1046464B (it) 1980-06-30

Family

ID=22605269

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51265/72A IT1046464B (it) 1971-07-28 1972-06-30 Perfezionamento negli obiettivi fotografici a quattro elementi

Country Status (12)

Country Link
US (1) US3695750A (enExample)
AT (1) AT334651B (enExample)
AU (1) AU463893B2 (enExample)
BE (1) BE786824R (enExample)
CA (1) CA972196A (enExample)
CH (1) CH555547A (enExample)
DE (1) DE2235652C2 (enExample)
FR (1) FR2147179B2 (enExample)
GB (1) GB1331898A (enExample)
IT (1) IT1046464B (enExample)
NL (1) NL182103C (enExample)
SE (1) SE373213B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54126531A (en) * 1978-03-24 1979-10-01 Minolta Camera Co Ltd Diopter adjusting eyepiece lens and finder of single lens reflex camera using this
SE468335B (sv) * 1988-09-15 1992-12-14 Nova Onab Optica Ab Projektionsoptik
US20220381955A1 (en) * 2021-05-28 2022-12-01 Zebra Technologies Corporation Moving front lens group mechanically located to fixed rear lens group

Also Published As

Publication number Publication date
CH555547A (de) 1974-10-31
GB1331898A (en) 1973-09-26
AU463893B2 (en) 1975-08-07
CA972196A (en) 1975-08-05
NL182103B (nl) 1987-08-03
BE786824R (fr) 1973-01-29
ATA652972A (de) 1976-05-15
DE2235652C2 (de) 1982-05-06
AU4469272A (en) 1974-01-24
NL182103C (nl) 1988-01-04
SE373213B (enExample) 1975-01-27
FR2147179A2 (enExample) 1973-03-09
US3695750A (en) 1972-10-03
DE2235652A1 (de) 1973-03-15
AT334651B (de) 1976-01-25
FR2147179B2 (enExample) 1974-10-04
NL7209168A (enExample) 1973-01-30

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