GB931063A - Photographic objective - Google Patents
Photographic objectiveInfo
- Publication number
- GB931063A GB931063A GB3896060A GB3896060A GB931063A GB 931063 A GB931063 A GB 931063A GB 3896060 A GB3896060 A GB 3896060A GB 3896060 A GB3896060 A GB 3896060A GB 931063 A GB931063 A GB 931063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- lens
- collective
- concave
- towards
- 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
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
-
- 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
931,063. Optical objectives. C. ZEISS-STIFTUNG, [trading as C.ZEISS [Firm of]]. Nov. 14, 1960 [Nov. 25, 1959], No. 38960/60. Class 97 (1). A photographic objective consists of at least five components, has an angular field of more than 28 degrees and a back focal length of more than 0.90f. The part of the system in front of the diaphragm contains an air space of axial length between 0.18/ and 0.90f and the sum of the refractive powers of the surfaces in front of this air space is negative. Between this air space and the diaphragm space there is a biconvex collective component and beyond the diaphragm there are disposed a bi-concave asymmetrical dispersive lens having its surface of deeper curvature concave towards the diaphragm, a collective meniscus concave towards the diaphragm and an asymmetrical collective component of which the rear surface is of deeper curvature and is convex towards the rear. As shown in Fig. 1, the three components to the rear of the diaphragm are all simple lenses and the bi-convex collective component which separates the diaphragm space from the front air space of axial length d 2 is a doublet. The front lens in this example is a simple dispersive lens but in other forms this lens is replaced by two menisci concave towards the diaphragm. In one form the bi-concave collecting component separating the two air spaces is a simple lens, in this case the middle of the three rear lenses being a doublet having a collective cemented surface which is convex towards the diaphragm. Optical data are given in the Specification for three examples.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEZ7682A DE1187393B (en) | 1959-11-25 | 1959-11-25 | Photographic lens |
Publications (1)
Publication Number | Publication Date |
---|---|
GB931063A true GB931063A (en) | 1963-07-10 |
Family
ID=7620226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3896060A Expired GB931063A (en) | 1959-11-25 | 1960-11-14 | Photographic objective |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1187393B (en) |
GB (1) | GB931063A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3410632A (en) * | 1964-05-30 | 1968-11-12 | Schneider Co Optische Werke | Wide-angle objective with negative front component and multilens positive component |
US3497291A (en) * | 1966-02-26 | 1970-02-24 | Schneider Co Optische Werke | Wide-angle photographic or cinematographic objective |
US3731989A (en) * | 1970-12-15 | 1973-05-08 | Nippon Kogaku Kk | Wide angle photographic lens system |
JPS5155232A (en) * | 1974-11-09 | 1976-05-14 | Olympus Optical Co | |
US4203653A (en) * | 1977-06-29 | 1980-05-20 | Nippon Kogaku K.K. | Inverted telephoto type wide angle lens system |
US4236789A (en) * | 1976-08-12 | 1980-12-02 | Canon Kabushiki Kaisha | Projection optical system |
US4264137A (en) | 1978-03-01 | 1981-04-28 | Olympus Optical Co., Ltd. | Compact retrofocus type lens system |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5834811B2 (en) * | 1973-01-30 | 1983-07-29 | ミノルタ株式会社 | Reverse telephoto wide-angle lens |
JPS5416410B2 (en) * | 1974-03-07 | 1979-06-22 | ||
JPS6034731B2 (en) * | 1977-04-19 | 1985-08-10 | オリンパス光学工業株式会社 | wide angle photo lens |
JPS543528A (en) | 1977-06-10 | 1979-01-11 | Olympus Optical Co Ltd | Retrofocus type wide angle lens |
JPS5444519A (en) * | 1977-09-14 | 1979-04-09 | Canon Inc | Wide angle leins |
JPS5622406A (en) * | 1979-08-01 | 1981-03-03 | Olympus Optical Co Ltd | Wide angle photographic lens |
RU2745899C1 (en) * | 2020-07-30 | 2021-04-02 | Публичное акционерное общество "Красногорский завод им. С.А. Зверева", ПАО КМЗ | Wide-angle high-power object lens |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE634843C (en) * | 1936-09-04 | Willy F Bielicke | Photographic lens | |
GB224425A (en) * | 1924-02-07 | 1924-11-13 | Horace William Lee | Improvements in photographic objectives |
DE440229C (en) * | 1924-02-23 | 1927-02-04 | Willy F Bielicke | Photographic lens consisting of four individual lenses |
GB299983A (en) * | 1927-10-12 | 1928-11-08 | Horace William Lee | Improvements in lenses |
US1955590A (en) * | 1930-07-12 | 1934-04-17 | Kapella Ltd | Lens |
GB555464A (en) * | 1941-11-06 | 1943-08-24 | Kodak Ltd | Improvements in or relating to photographic objectives |
DE1024730B (en) * | 1952-03-05 | 1958-02-20 | Voigtlaender A G | Photographic lens of the extended triplet type |
DE1062028B (en) * | 1955-02-19 | 1959-07-23 | Enna Werk Optik Apelt | Photographic lens |
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 |
FR1176697A (en) * | 1957-06-12 | 1959-04-14 | Zeiss Jena Veb Carl | Wide angle lens with very long frontal distance |
-
1959
- 1959-11-25 DE DEZ7682A patent/DE1187393B/en active Pending
-
1960
- 1960-11-14 GB GB3896060A patent/GB931063A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3410632A (en) * | 1964-05-30 | 1968-11-12 | Schneider Co Optische Werke | Wide-angle objective with negative front component and multilens positive component |
US3497291A (en) * | 1966-02-26 | 1970-02-24 | Schneider Co Optische Werke | Wide-angle photographic or cinematographic objective |
US3731989A (en) * | 1970-12-15 | 1973-05-08 | Nippon Kogaku Kk | Wide angle photographic lens system |
JPS5155232A (en) * | 1974-11-09 | 1976-05-14 | Olympus Optical Co | |
US4113358A (en) * | 1974-11-09 | 1978-09-12 | Olympus Optical Co., Ltd. | Retrofocus type wide-angle photographic lens system |
US4236789A (en) * | 1976-08-12 | 1980-12-02 | Canon Kabushiki Kaisha | Projection optical system |
US4203653A (en) * | 1977-06-29 | 1980-05-20 | Nippon Kogaku K.K. | Inverted telephoto type wide angle lens system |
US4264137A (en) | 1978-03-01 | 1981-04-28 | Olympus Optical Co., Ltd. | Compact retrofocus type lens system |
Also Published As
Publication number | Publication date |
---|---|
DE1187393B (en) | 1965-02-18 |
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