[go: up one dir, main page]

GB161091A - Improvements relating to objectives - Google Patents

Improvements relating to objectives

Info

Publication number
GB161091A
GB161091A GB1527220A GB1527220A GB161091A GB 161091 A GB161091 A GB 161091A GB 1527220 A GB1527220 A GB 1527220A GB 1527220 A GB1527220 A GB 1527220A GB 161091 A GB161091 A GB 161091A
Authority
GB
United Kingdom
Prior art keywords
objectives
improvements relating
relating
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
GB1527220A
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
Priority to GB1527220A priority Critical patent/GB161091A/en
Publication of GB161091A publication Critical patent/GB161091A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
GB1527220A 1920-06-05 1920-06-05 Improvements relating to objectives Expired GB161091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1527220A GB161091A (en) 1920-06-05 1920-06-05 Improvements relating to objectives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1527220A GB161091A (en) 1920-06-05 1920-06-05 Improvements relating to objectives

Publications (1)

Publication Number Publication Date
GB161091A true GB161091A (en) 1921-04-07

Family

ID=10056094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1527220A Expired GB161091A (en) 1920-06-05 1920-06-05 Improvements relating to objectives

Country Status (1)

Country Link
GB (1) GB161091A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474837A (en) * 1945-03-08 1949-07-05 American Optical Corp Wide aperture lens system having means for reducing spherical aberrations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474837A (en) * 1945-03-08 1949-07-05 American Optical Corp Wide aperture lens system having means for reducing spherical aberrations

Similar Documents

Publication Publication Date Title
FR540819A (en) Improvements to radio-receivers
GB161091A (en) Improvements relating to objectives
FR24721E (en) Improvements to radio-receivers
US1406197A (en) Frocess of vlcanization
AU1782720B (en) Improvements intire-vulcanizers
AU1684120B (en) Improvements relating to driers
GB153533A (en) Improvements relating to kettles
AU1545720B (en) An improved apple-corer
GB164508A (en) Improvements in or relating to cameras
AU1769220B (en) Improvements in or relating to aero-motors
GB158526A (en) Improvements relating to kinematograph projection apparatus
GB157004A (en) Improvements in or relating to springs
GB166344A (en) New means in colour-kinematography
CA4788S (en) Range
CA4789S (en) Range
CA4911S (en) Water can
FR524027A (en) Improvements to press studs
AU1886620B (en) Improvements relating to syphon apparatus
GB168985A (en) Improvements relating to talking machines
AU1684120A (en) Improvements relating to driers
GB163832A (en) Improvements in retinoscopes
AU1695220B (en) Improvements in flytraps
FR521689A (en) Improvement to shirts
GB172714A (en) Improvements in or relating to colour kinematography
AU1471920B (en) An improved brush-hook