GB329350A - Improvements in or relating to optical lenses - Google Patents

Improvements in or relating to optical lenses

Info

Publication number
GB329350A
GB329350A GB3352828A GB3352828A GB329350A GB 329350 A GB329350 A GB 329350A GB 3352828 A GB3352828 A GB 3352828A GB 3352828 A GB3352828 A GB 3352828A GB 329350 A GB329350 A GB 329350A
Authority
GB
United Kingdom
Prior art keywords
lens
lenses
soc
combined
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
GB3352828A
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.)
FR CINECHROMATIQUE PROCEDES R
Original Assignee
FR CINECHROMATIQUE PROCEDES R
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 FR CINECHROMATIQUE PROCEDES R filed Critical FR CINECHROMATIQUE PROCEDES R
Priority to GB3352828A priority Critical patent/GB329350A/en
Publication of GB329350A publication Critical patent/GB329350A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Eyeglasses (AREA)
  • Prostheses (AREA)

Abstract

329,350. Wade, H., (Soc. Franþaise CinÚchromatique, ProcÚdÚs R. Berthon, Soc. Anon.). Nov. 16, 1928. Lenses.-Spherically and anastigmatically corrected lenses are constructed of a divergent and a convergent element, the ratio of the respective focal lengths being between 2.3 and 2.8. The spacing of the lens elements is between 0.12 and 0.18 of the total focal length. Achromatism may be effected by making one of the lenses a cemented doublet. Two similar lenses may be combined to form a svmmetrical lens or the lens may be combined with a known type of lens to increase the aperture of the combination. This lens is stated to be specially applicable for use with lenticular films, enabling the selecting filter to be placed outside the lens system. Numerical data are given in the Specification of one construction.
GB3352828A 1928-11-16 1928-11-16 Improvements in or relating to optical lenses Expired GB329350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3352828A GB329350A (en) 1928-11-16 1928-11-16 Improvements in or relating to optical lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3352828A GB329350A (en) 1928-11-16 1928-11-16 Improvements in or relating to optical lenses

Publications (1)

Publication Number Publication Date
GB329350A true GB329350A (en) 1930-05-16

Family

ID=10354114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3352828A Expired GB329350A (en) 1928-11-16 1928-11-16 Improvements in or relating to optical lenses

Country Status (1)

Country Link
GB (1) GB329350A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416525A (en) * 1943-11-22 1947-02-25 Combined Optical Ind Ltd Collective lens system
US2516724A (en) * 1946-08-23 1950-07-25 Rossinov Michael Michaelovitch Wide angle orthoscopic anastigmatic photographic objective
US2518719A (en) * 1946-02-09 1950-08-15 Eastman Kodak Co Wide-angle camera objective
US2792749A (en) * 1952-08-17 1957-05-21 Zeiss Carl Wide angle anastigmatic objective comprising two negative inner meniscus components between two outer positive meniscus components

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416525A (en) * 1943-11-22 1947-02-25 Combined Optical Ind Ltd Collective lens system
US2518719A (en) * 1946-02-09 1950-08-15 Eastman Kodak Co Wide-angle camera objective
US2516724A (en) * 1946-08-23 1950-07-25 Rossinov Michael Michaelovitch Wide angle orthoscopic anastigmatic photographic objective
US2792749A (en) * 1952-08-17 1957-05-21 Zeiss Carl Wide angle anastigmatic objective comprising two negative inner meniscus components between two outer positive meniscus components

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