GB697366A - Improvements in or relating to optical objectives - Google Patents

Improvements in or relating to optical objectives

Info

Publication number
GB697366A
GB697366A GB1943751A GB1943751A GB697366A GB 697366 A GB697366 A GB 697366A GB 1943751 A GB1943751 A GB 1943751A GB 1943751 A GB1943751 A GB 1943751A GB 697366 A GB697366 A GB 697366A
Authority
GB
United Kingdom
Prior art keywords
component
curvature
front surface
taylor
convergent
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
GB1943751A
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.)
Taylor Taylor and Hobson Ltd
Original Assignee
Taylor Taylor and Hobson Ltd
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 Taylor Taylor and Hobson Ltd filed Critical Taylor Taylor and Hobson Ltd
Priority to GB1943751A priority Critical patent/GB697366A/en
Publication of GB697366A publication Critical patent/GB697366A/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)
  • Lenses (AREA)

Abstract

697,366. Optical objectives. COOK, G. H., and TAYLOR, TAYLOR & HOBSON, Ltd. June 23, 1952 [Aug. 17, 1951], No. 19437/51. Class 97 (i). A telephoto objective connected for spherical and chromatic aberrations, coma, astigmatism and field curvature, comprises a rear divergent member widely separated from a convergent front member which consists of three simple components of which the first is convergent with surfaces convex to the front, the second is biconvex and the third biconcave, the curvature of the rear surface of the second component exceeding that of the front surface of the third component by between 0.02 and 0.2 times the equivalent power of the objective, whilst the radius of curvature of the front surface of the first component is less than 0.6F and greater than that of the front surface of the second component which is in turn greater than 0.2F, F being the equivalent focal length. Data are given for two examples.
GB1943751A 1951-08-17 1951-08-17 Improvements in or relating to optical objectives Expired GB697366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1943751A GB697366A (en) 1951-08-17 1951-08-17 Improvements in or relating to optical objectives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1943751A GB697366A (en) 1951-08-17 1951-08-17 Improvements in or relating to optical objectives

Publications (1)

Publication Number Publication Date
GB697366A true GB697366A (en) 1953-09-23

Family

ID=10129367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1943751A Expired GB697366A (en) 1951-08-17 1951-08-17 Improvements in or relating to optical objectives

Country Status (1)

Country Link
GB (1) GB697366A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093110B (en) * 1958-07-12 1960-11-17 Rodenstock Optik G Telephoto lens
DE1144941B (en) * 1956-05-19 1963-03-07 Rodenstock Optik G Telephoto lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144941B (en) * 1956-05-19 1963-03-07 Rodenstock Optik G Telephoto lens
DE1093110B (en) * 1958-07-12 1960-11-17 Rodenstock Optik G Telephoto lens

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