GB225398A - Improvements in photographic lenses - Google Patents

Improvements in photographic lenses

Info

Publication number
GB225398A
GB225398A GB3193123A GB3193123A GB225398A GB 225398 A GB225398 A GB 225398A GB 3193123 A GB3193123 A GB 3193123A GB 3193123 A GB3193123 A GB 3193123A GB 225398 A GB225398 A GB 225398A
Authority
GB
United Kingdom
Prior art keywords
lenses
photographic
lens
plate
produced
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
GB3193123A
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.)
R & J Beck Ltd
ROBIN HILL
Original Assignee
R & J Beck Ltd
ROBIN HILL
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 R & J Beck Ltd, ROBIN HILL filed Critical R & J Beck Ltd
Priority to GB3193123A priority Critical patent/GB225398A/en
Publication of GB225398A publication Critical patent/GB225398A/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
    • G02B13/04—Reversed telephoto objectives

Abstract

225,398. Hill, R., and Beck, Ltd., R. & J. Dec. 20, 1923. Lenses.-Photographic lenses for taking views subtending large angles, i.e. exceeding 125‹, consist of divergent meniscus lens a having a convex surface towards the object and a deeply concave back surface. This lens is combined with a positive lens system c, d for the production of an image on the photographic plate e. The majority of the total reduction in the angle of view produced by the entire system takes place before the light reaches the diaphragm b between the lenses. The distorted image produced on the plate e by the system is approximately equivalent to stereographic or equidistant projection. Numerical data are given in the Specification.
GB3193123A 1923-12-20 1923-12-20 Improvements in photographic lenses Expired GB225398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3193123A GB225398A (en) 1923-12-20 1923-12-20 Improvements in photographic lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3193123A GB225398A (en) 1923-12-20 1923-12-20 Improvements in photographic lenses

Publications (1)

Publication Number Publication Date
GB225398A true GB225398A (en) 1924-12-04

Family

ID=10330514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3193123A Expired GB225398A (en) 1923-12-20 1923-12-20 Improvements in photographic lenses

Country Status (1)

Country Link
GB (1) GB225398A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516724A (en) * 1946-08-23 1950-07-25 Rossinov Michael Michaelovitch Wide angle orthoscopic anastigmatic photographic objective
US2649022A (en) * 1950-02-17 1953-08-18 Angenieux Pierre Wide-angle photographic objective lens assembly
US2721499A (en) * 1951-07-12 1955-10-25 Bertele Ludwig Five component wide-angle objective
US2791153A (en) * 1952-09-25 1957-05-07 Felix L Bednarz Wide angle lens system
US2947219A (en) * 1957-08-07 1960-08-02 Tno Wide-angle objective lens
US3068752A (en) * 1956-12-24 1962-12-18 Commw Of Australia Wide angle lens systems
DE1248324B (en) * 1960-03-22 1967-08-24 Yoshiyuki Ino Optical panorama system
EP3683743A1 (en) 2019-01-17 2020-07-22 Basf Se Computer-implemented method, system and computer program for providing audit records that relate to technical equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516724A (en) * 1946-08-23 1950-07-25 Rossinov Michael Michaelovitch Wide angle orthoscopic anastigmatic photographic objective
US2649022A (en) * 1950-02-17 1953-08-18 Angenieux Pierre Wide-angle photographic objective lens assembly
US2721499A (en) * 1951-07-12 1955-10-25 Bertele Ludwig Five component wide-angle objective
US2791153A (en) * 1952-09-25 1957-05-07 Felix L Bednarz Wide angle lens system
US3068752A (en) * 1956-12-24 1962-12-18 Commw Of Australia Wide angle lens systems
US2947219A (en) * 1957-08-07 1960-08-02 Tno Wide-angle objective lens
DE1248324B (en) * 1960-03-22 1967-08-24 Yoshiyuki Ino Optical panorama system
EP3683743A1 (en) 2019-01-17 2020-07-22 Basf Se Computer-implemented method, system and computer program for providing audit records that relate to technical equipment
WO2020148158A1 (en) 2019-01-17 2020-07-23 Basf Se Computer-implemented method, system and computer program for providing audit records that relate to technical equipment

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