GB741511A - Improvements in or relating to optical objectives - Google Patents

Improvements in or relating to optical objectives

Info

Publication number
GB741511A
GB741511A GB2147753A GB2147753A GB741511A GB 741511 A GB741511 A GB 741511A GB 2147753 A GB2147753 A GB 2147753A GB 2147753 A GB2147753 A GB 2147753A GB 741511 A GB741511 A GB 741511A
Authority
GB
United Kingdom
Prior art keywords
divergent
meniscus
component
rear member
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
GB2147753A
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 GB2147753A priority Critical patent/GB741511A/en
Priority to FR1097478D priority patent/FR1097478A/en
Publication of GB741511A publication Critical patent/GB741511A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

741,511. Optical systems. COOK, G. H., and TAYLOR, TAYLOR & HOBSON, Ltd.. Aug. 4, 1954 [Aug. 4, 1953; March 16, 1954], Nos. 21477/53 and 7614/54. Class 97 (1). A corrected objective of the inverted telephoto type comprises a divergent front member widely separated from a convergent rear member consisting of five components, of which the middle one is divergent and the other four convergent, the two outer air spaces in the rear member being collective whilst the two inner air spaces in such member are dispersive. The convergent second component of the rear member may be of meniscus form with its airexposed surfaces convex to the front, and the divergent middle component biconcave, whilst the two rear components may each be biconvex, the front surface of the front component of the rear member being convex to the front. Numerical data are given for two examples of the objective shown, for one, as shown, in which the second component of the rear member is a simple meniscus, for one, as shown, in which the front member consists of a simple biconvex lens followed by a divergent meniscus and the second component of the rear member is a simple meniscus, and for one, as shown, in which the front member is a simple divergent meniscus followed by a convergent doublet formed by cementing a biconvex element and a biconcave element. Specification 696,159 is referred to.
GB2147753A 1953-08-04 1953-08-04 Improvements in or relating to optical objectives Expired GB741511A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2147753A GB741511A (en) 1953-08-04 1953-08-04 Improvements in or relating to optical objectives
FR1097478D FR1097478A (en) 1953-08-04 1954-03-30 Improvements to optical device lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2147753A GB741511A (en) 1953-08-04 1953-08-04 Improvements in or relating to optical objectives

Publications (1)

Publication Number Publication Date
GB741511A true GB741511A (en) 1955-12-07

Family

ID=10163608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2147753A Expired GB741511A (en) 1953-08-04 1953-08-04 Improvements in or relating to optical objectives

Country Status (2)

Country Link
FR (1) FR1097478A (en)
GB (1) GB741511A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826117A (en) * 1955-12-12 1958-03-11 Canon Camera Co High aperture wide-angle objective for cinematographic cameras
DE1092229B (en) * 1958-09-23 1960-11-03 Schneider Co Optische Werke Wide-angle photographic or cinematographic lens
DE1102435B (en) * 1958-09-12 1961-03-16 Enna Werk Optik Apelt Photographic wide-angle lens with extremely high light intensity
US3033082A (en) * 1959-04-13 1962-05-08 Rank Precision Ind Ltd Inverted telephoto objectives
GB2323934A (en) * 1995-01-06 1998-10-07 Samsung Aerospace Ind Optical six element lens system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063826B (en) * 1956-11-10 1959-08-20 Isco Optische Werke G M B H Asymmetrical photographic or cinematographic lens with a large field of view

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826117A (en) * 1955-12-12 1958-03-11 Canon Camera Co High aperture wide-angle objective for cinematographic cameras
DE1102435B (en) * 1958-09-12 1961-03-16 Enna Werk Optik Apelt Photographic wide-angle lens with extremely high light intensity
DE1092229B (en) * 1958-09-23 1960-11-03 Schneider Co Optische Werke Wide-angle photographic or cinematographic lens
US3033082A (en) * 1959-04-13 1962-05-08 Rank Precision Ind Ltd Inverted telephoto objectives
GB2323934A (en) * 1995-01-06 1998-10-07 Samsung Aerospace Ind Optical six element lens system

Also Published As

Publication number Publication date
FR1097478A (en) 1955-07-06

Similar Documents

Publication Publication Date Title
GB741511A (en) Improvements in or relating to optical objectives
GB609669A (en) Improvements in or relating to optical objectives
GB601837A (en) Improvements in or relating to optical objectives
GB696159A (en) Improvements in or relating to optical objectives
GB696167A (en) Four lens objective
GB740530A (en) Improvements in wide angle objectives
GB564133A (en) Improvements in or relating to optical objectives
GB672822A (en) Improvements in or relating to optical objectives
GB937333A (en) Afocal wide-angle supplementary objective
GB880848A (en) Improvements in or relating to optical objectives
GB686196A (en) Improvements in or relating to optical objectives
GB609407A (en) Improvements in or relating to optical objectives
GB609408A (en) Improvements in or relating to optical objectives
GB593835A (en) Improvements in or relating to optical objectives
GB849576A (en) Optical objective
GB583297A (en) Improvements in or relating to optical objectives
GB565411A (en) Improvements in or relating to optical objectives
GB653227A (en) Improvements in or relating to optical objectives
GB656347A (en) Improvements in or relating to optical objectives of the telephoto type
GB1095767A (en) Wide angle lens
GB678528A (en) Improvements in or relating to optical objectives
GB926802A (en) Improvements in or relating to optical objectives
GB697366A (en) Improvements in or relating to optical objectives
GB702629A (en) Improvements in or relating to optical objectives
GB915221A (en) Improvements in or relating to variable focal objectives