GB1386175A - Lenses - Google Patents
LensesInfo
- Publication number
- GB1386175A GB1386175A GB2579272A GB2579272A GB1386175A GB 1386175 A GB1386175 A GB 1386175A GB 2579272 A GB2579272 A GB 2579272A GB 2579272 A GB2579272 A GB 2579272A GB 1386175 A GB1386175 A GB 1386175A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inner member
- outer members
- magnification
- symmetrically arranged
- members
- 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
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2579272A GB1386175A (en) | 1972-06-02 | 1972-06-02 | Lenses |
DD17108873A DD104858A5 (xx) | 1972-06-02 | 1973-05-25 | |
CA172,992A CA979697A (en) | 1972-06-02 | 1973-06-01 | Optical system |
IT6862973A IT986404B (it) | 1972-06-02 | 1973-06-01 | Sistema ottico particolarmente obiettivo per riproduzioni |
FR7320070A FR2186664B1 (xx) | 1972-06-02 | 1973-06-01 | |
JP6104373A JPS4952634A (xx) | 1972-06-02 | 1973-06-01 | |
SE7307828A SE391589B (sv) | 1972-06-02 | 1973-06-04 | Kopieringsobjektiv |
DE19732328286 DE2328286A1 (de) | 1972-06-02 | 1973-06-04 | Repro-objektiv |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2579272A GB1386175A (en) | 1972-06-02 | 1972-06-02 | Lenses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1386175A true GB1386175A (en) | 1975-03-05 |
Family
ID=10233385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2579272A Expired GB1386175A (en) | 1972-06-02 | 1972-06-02 | Lenses |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4952634A (xx) |
CA (1) | CA979697A (xx) |
DD (1) | DD104858A5 (xx) |
DE (1) | DE2328286A1 (xx) |
FR (1) | FR2186664B1 (xx) |
GB (1) | GB1386175A (xx) |
IT (1) | IT986404B (xx) |
SE (1) | SE391589B (xx) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2849128A1 (de) * | 1977-11-15 | 1979-05-17 | Gretag Ag | Zoom-objektiv |
DE3118561A1 (de) * | 1980-05-13 | 1982-04-15 | Asahi Kogaku Kogyo K.K., Tokyo | Kopieroptik mit variabler brennweite |
DE3544148A1 (de) * | 1984-12-13 | 1986-06-26 | Asahi Kogaku Kogyo K.K., Tokio/Tokyo | Objektiv fuer das kopieren mit variabler abbildungsgroesse |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51144229A (en) * | 1975-06-05 | 1976-12-11 | Konishiroku Photo Ind Co Ltd | Bright wide-angle lens with many surrounding quantities of light |
US4056308A (en) * | 1976-03-03 | 1977-11-01 | Xerox Corporation | Variable focal length reflector lens system |
US4061419A (en) * | 1976-03-03 | 1977-12-06 | Xerox Corporation | Variable magnification lens system |
JPS5767909A (en) * | 1980-10-15 | 1982-04-24 | Canon Inc | Variable magnification optical system |
JPS6218514A (ja) * | 1985-07-18 | 1987-01-27 | Konishiroku Photo Ind Co Ltd | 複写用ズ−ムレンズ系 |
JPH071338B2 (ja) * | 1986-02-03 | 1995-01-11 | 旭光学工業株式会社 | 複写用変倍レンズ |
JP2623620B2 (ja) * | 1987-12-19 | 1997-06-25 | ミノルタ株式会社 | ズームレンズ系 |
DE4005300A1 (de) * | 1990-02-20 | 1991-08-22 | Leica Camera Gmbh | Kameraobjektiv |
-
1972
- 1972-06-02 GB GB2579272A patent/GB1386175A/en not_active Expired
-
1973
- 1973-05-25 DD DD17108873A patent/DD104858A5/xx unknown
- 1973-06-01 CA CA172,992A patent/CA979697A/en not_active Expired
- 1973-06-01 IT IT6862973A patent/IT986404B/it active
- 1973-06-01 FR FR7320070A patent/FR2186664B1/fr not_active Expired
- 1973-06-01 JP JP6104373A patent/JPS4952634A/ja active Pending
- 1973-06-04 DE DE19732328286 patent/DE2328286A1/de active Pending
- 1973-06-04 SE SE7307828A patent/SE391589B/xx unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2849128A1 (de) * | 1977-11-15 | 1979-05-17 | Gretag Ag | Zoom-objektiv |
DE3118561A1 (de) * | 1980-05-13 | 1982-04-15 | Asahi Kogaku Kogyo K.K., Tokyo | Kopieroptik mit variabler brennweite |
DE3544148A1 (de) * | 1984-12-13 | 1986-06-26 | Asahi Kogaku Kogyo K.K., Tokio/Tokyo | Objektiv fuer das kopieren mit variabler abbildungsgroesse |
DE3544148C2 (xx) * | 1984-12-13 | 1991-05-08 | Asahi Kogaku Kogyo K.K., Tokio/Tokyo, Jp |
Also Published As
Publication number | Publication date |
---|---|
DE2328286A1 (de) | 1973-12-13 |
JPS4952634A (xx) | 1974-05-22 |
FR2186664A1 (xx) | 1974-01-11 |
CA979697A (en) | 1975-12-16 |
FR2186664B1 (xx) | 1977-09-23 |
SE391589B (sv) | 1977-02-21 |
DD104858A5 (xx) | 1974-03-20 |
IT986404B (it) | 1975-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2847907A (en) | Variable focal-length objectives | |
GB1386175A (en) | Lenses | |
US5054896A (en) | Continuously focusable microscope incorporating an afocal variator optical system | |
GB1430311A (en) | Telephoto lens systems | |
US2778272A (en) | Optical objective system device of variable focal length | |
US3990785A (en) | Anamorphic zoom lens | |
US4676581A (en) | Infra-red lenses | |
US3353891A (en) | Zoom lens system having front mounted axially movable aperture stop to control numerical aperture during magnification change | |
GB900249A (en) | Improvements in and relating to varifocal lenses | |
GB720984A (en) | Improvements in and relating to optical system of variable focal length | |
US3143590A (en) | Zoom lens | |
US2594020A (en) | Wide-angle photographic objective | |
EP0225824A2 (en) | A high relative aperture objective lens system with compound focusing | |
US3597048A (en) | Varifocal objective with movable lens component of positive refractivity | |
US3065671A (en) | Optical objective | |
GB1008309A (en) | Variable focal length lens system | |
GB1403915A (en) | High aperture objective of the extended gauss-type | |
GB1092677A (en) | Varifocal objective system | |
GB1427808A (en) | Super-wide-angle photographic lens assembly | |
US5173727A (en) | Zoom viewfinder | |
GB1388081A (en) | Lens assembly | |
GB1076789A (en) | Photographic objective of continuously variable focal length | |
GB898745A (en) | Improvements in or relating to optical objectives of variable focal length | |
GB1261217A (en) | Camera objective with continuously variable focal length | |
US3326622A (en) | Afocal varifocal supplementary objective |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |