GB1403471A - Optical lens system - Google Patents

Optical lens system

Info

Publication number
GB1403471A
GB1403471A GB2370573A GB2370573A GB1403471A GB 1403471 A GB1403471 A GB 1403471A GB 2370573 A GB2370573 A GB 2370573A GB 2370573 A GB2370573 A GB 2370573A GB 1403471 A GB1403471 A GB 1403471A
Authority
GB
United Kingdom
Prior art keywords
lens
refractive index
lens system
satifies
biconvex
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
GB2370573A
Other languages
English (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.)
Meopta np
Original Assignee
Meopta np
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 Meopta np filed Critical Meopta np
Publication of GB1403471A publication Critical patent/GB1403471A/en
Expired legal-status Critical Current

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 -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
    • G02B9/14—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - +
    • G02B9/18—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + only one component having a compound lens
    • G02B9/20—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + only one component having a compound lens the rear component having the compound
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
GB2370573A 1972-06-13 1973-05-18 Optical lens system Expired GB1403471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS409272A CS152944B1 (enExample) 1972-06-13 1972-06-13

Publications (1)

Publication Number Publication Date
GB1403471A true GB1403471A (en) 1975-08-28

Family

ID=5382905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2370573A Expired GB1403471A (en) 1972-06-13 1973-05-18 Optical lens system

Country Status (11)

Country Link
US (1) US3864028A (enExample)
JP (1) JPS4952635A (enExample)
AT (1) AT326385B (enExample)
CS (1) CS152944B1 (enExample)
DE (1) DE2325489C3 (enExample)
DK (1) DK137733B (enExample)
FI (1) FI60452C (enExample)
FR (1) FR2188177B3 (enExample)
GB (1) GB1403471A (enExample)
IT (1) IT985429B (enExample)
NO (1) NO136434C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440755A (en) * 2006-08-08 2008-02-13 Camdeor Technology Co Ltd Infrared laser light source spreader

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459933A (en) * 1977-10-20 1979-05-15 Canon Inc Photographic lens of rear diaphragm tessar type
JPS5664310A (en) * 1979-10-29 1981-06-01 Canon Inc Projecting lens

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346086A (en) * 1942-06-01 1944-04-04 Eastman Kodak Co Photographic objective

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440755A (en) * 2006-08-08 2008-02-13 Camdeor Technology Co Ltd Infrared laser light source spreader
US7411747B2 (en) 2006-08-08 2008-08-12 Camdeor Technology Co., Ltd. Infrared laser light source spreader
GB2440755B (en) * 2006-08-08 2010-04-21 Camdeor Technology Co Ltd Infrared laser light source spreader

Also Published As

Publication number Publication date
DE2325489A1 (de) 1974-01-03
NO136434B (enExample) 1977-05-23
DE2325489C3 (de) 1975-10-16
FR2188177B3 (enExample) 1976-05-28
FI60452C (fi) 1982-01-11
DK137733C (enExample) 1978-10-02
ATA511473A (de) 1975-02-15
JPS4952635A (enExample) 1974-05-22
NO136434C (no) 1977-08-31
DK137733B (da) 1978-04-24
FI60452B (fi) 1981-09-30
DE2325489B2 (de) 1975-02-27
CS152944B1 (enExample) 1974-02-22
US3864028A (en) 1975-02-04
IT985429B (it) 1974-11-30
FR2188177A1 (enExample) 1974-01-18
AT326385B (de) 1975-12-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee