GB855706A - Three-component photographic objective - Google Patents

Three-component photographic objective

Info

Publication number
GB855706A
GB855706A GB12372/59A GB1237259A GB855706A GB 855706 A GB855706 A GB 855706A GB 12372/59 A GB12372/59 A GB 12372/59A GB 1237259 A GB1237259 A GB 1237259A GB 855706 A GB855706 A GB 855706A
Authority
GB
United Kingdom
Prior art keywords
lies
objective
sum
lens
cemented surface
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
GB12372/59A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB855706A publication Critical patent/GB855706A/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)
  • Lenses (AREA)

Abstract

855,706. Photographic objectives. ZEISSSTIFTUNG, C., [trading as ZEISS, C. (Firm of)]. April 13, 1959 [April 22, 1958], No. 12372/59. Class 97(1) The objective consists of a positive meniscus simple lens, a bi-concave simple lens and a rear doublet having its cemented surface convex towards the middle lens wherein 1. À22f<L<À32F 2. À28F<R1<À36F 3. 1À7F<R2<3À4F 4. À3F<R6<À4F 5. -À7<R7<-À45f 6. The sum of the refractive powers of the first and last surfaces lies between 3À2/f and 3À8/f 7. The sum of the refractive powers of the two surfaces of the middle lens lies between - 3À1/f and - 2À7/f 8. The sum of the refractive powers of the two surfaces of the two outer lenses which are adjacent the middle lens lies between - 0À45/f and - 0À25/f 9. The thickness of the middle lens lies between À025f and À070f 10. -4À5L<R3<-3L 11. The refractive index difference at the cemented surface is between À14 and À22 12. À80f<R6+r7<f 13. L<R6<1À6L 14. The refractive power of the cemented surface lies between 0À35/f and À6/f Where f is the equivalent focal length and L is the overall length of the objective. Optical data are given for two examples of the objective illustrated.
GB12372/59A 1958-04-22 1959-04-13 Three-component photographic objective Expired GB855706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE855706X 1958-04-22

Publications (1)

Publication Number Publication Date
GB855706A true GB855706A (en) 1960-12-07

Family

ID=6789169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12372/59A Expired GB855706A (en) 1958-04-22 1959-04-13 Three-component photographic objective

Country Status (1)

Country Link
GB (1) GB855706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420602A (en) * 1964-03-23 1969-01-07 Voigtlaender Ag Triplet with one cemented component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420602A (en) * 1964-03-23 1969-01-07 Voigtlaender Ag Triplet with one cemented component

Similar Documents

Publication Publication Date Title
GB772912A (en) An optical system of high acceptance angle
GB931063A (en) Photographic objective
GB855706A (en) Three-component photographic objective
GB544658A (en) Improvements in or relating to optical objectives
GB592144A (en) Improvements in and relating to objectives suitable for photographic purposes
GB547739A (en) Improvements in or relating to optical objectives
GB1403915A (en) High aperture objective of the extended gauss-type
GB706605A (en) Photographic objective
GB522651A (en) Improvements in or relating to optical objectives
GB1020462A (en)
GB579521A (en) Improvements in or relating to telephoto lenses
GB977745A (en) Afocal wide-angle supplementary objective
GB821686A (en) Photographic teleobjective
GB769241A (en) Improvements in and relating to asymmetrical photographic objectives
GB350717A (en) Photographic objectives
GB836087A (en) Photographic objective
GB818807A (en) A wide aperture tele-photo-lens
GB863565A (en) Afocal attachments for optical objectives
GB548252A (en) Improvements in or relating to high aperture objectives
GB898269A (en) Improvements in photographic high-speed lenses
GB548253A (en) Improvements in or relating to photographic objectives
GB850117A (en) Improvements in or relating to photographic lenses
GB575075A (en) Improvements relating to optical lenses
GB548251A (en) Improvements in or relating to photographic objectives
GB923550A (en) Five-lens objective