GB2001779A – Zoom lens system
– Google Patents
GB2001779A – Zoom lens system
– Google Patents
Zoom lens system
Info
Publication number
GB2001779A
GB2001779A
GB787831422A
GB7831422A
GB2001779A
GB 2001779 A
GB2001779 A
GB 2001779A
GB 787831422 A
GB787831422 A
GB 787831422A
GB 7831422 A
GB7831422 A
GB 7831422A
GB 2001779 A
GB2001779 A
GB 2001779A
Authority
GB
United Kingdom
Prior art keywords
zoom lens
lens system
zoom
lens
Prior art date
1977-07-30
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.)
Granted
Application number
GB787831422A
Other versions
GB2001779B
(en
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co 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.)
1977-07-30
Filing date
1978-07-27
Publication date
1979-02-07
1978-07-27
Application filed by Asahi Kogaku Kogyo Co Ltd
filed
Critical
Asahi Kogaku Kogyo Co Ltd
1979-02-07
Publication of GB2001779A
publication
Critical
patent/GB2001779A/en
1982-01-27
Application granted
granted
Critical
1982-01-27
Publication of GB2001779B
publication
Critical
patent/GB2001779B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G02—OPTICS
G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B15/00—Optical objectives with means for varying the magnification
G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
G02B15/177—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
GB787831422A
1977-07-30
1978-07-27
Zoom lens system
Expired
GB2001779B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP9184577A
JPS5426754A
(en)
1977-07-30
1977-07-30
Zoom lens having small distorted aberration
Publications (2)
Publication Number
Publication Date
GB2001779A
true
GB2001779A
(en)
1979-02-07
GB2001779B
GB2001779B
(en)
1982-01-27
Family
ID=14037904
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB787831422A
Expired
GB2001779B
(en)
1977-07-30
1978-07-27
Zoom lens system
Country Status (4)
Country
Link
US
(1)
US4196969A
(en)
JP
(1)
JPS5426754A
(en)
DE
(1)
DE2833309C3
(en)
GB
(1)
GB2001779B
(en)
Families Citing this family (29)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5850327B2
(en)
*
1977-12-02
1983-11-10
旭光学工業株式会社
A zoom lens with low distortion that covers a wide angle
JPS5532037A
(en)
*
1978-08-29
1980-03-06
Nippon Kogaku Kk
Zoom lens system for near distance
JPS5576318A
(en)
*
1978-12-05
1980-06-09
Canon Inc
Zoom lens system
JPS5695210A
(en)
*
1979-12-28
1981-08-01
Canon Inc
Lens system provided with rear converter lens
JPS5891421A
(en)
*
1981-11-26
1983-05-31
Canon Inc
Rear focus type zoom lens
US4636040A
(en)
*
1982-02-19
1987-01-13
Minolta Camera Kabushiki Kaisha
Zoom lens system
JPS58143312A
(en)
*
1982-02-19
1983-08-25
Minolta Camera Co Ltd
Zoom lens system
JPS58160911A
(en)
*
1982-03-19
1983-09-24
Canon Inc
Zoom lens
GB8511978D0
(en)
*
1985-05-11
1987-09-09
Pilkington Perkin Elmer Ltd
Optical apparatus
CH669336A5
(en)
*
1985-12-11
1989-03-15
Sulzer Ag
JPH0814654B2
(en)
*
1987-04-28
1996-02-14
キヤノン株式会社
Small zoom lens
US4756609A
(en)
*
1987-07-13
1988-07-12
Eastman Kodak Company
Four component compact zoom lens
US4828372A
(en)
*
1987-10-09
1989-05-09
Eastman Kodak Company
Wide-angle zoom lens
US5079416A
(en)
*
1987-10-27
1992-01-07
Night Vision General Partnership
Compact see-through night vision goggles
US5039211A
(en)
*
1988-07-28
1991-08-13
Asahi Kogaku Kogyo Kabushiki Kaisha
Zoom lens capable of image blur compensation
JP2681491B2
(en)
*
1988-07-28
1997-11-26
コニカ株式会社
Compact zoom lens
JPH03126568U
(en)
*
1990-03-31
1991-12-19
JPH04289812A
(en)
*
1991-03-18
1992-10-14
Asahi Optical Co Ltd
Zoom lens
GB9226806D0
(en)
*
1991-12-25
1993-02-17
Asahi Optical Co Ltd
Zoom lens system
US5786941A
(en)
*
1994-07-08
1998-07-28
Minolta C., Ltd.
Zoom lens system
US5646788A
(en)
*
1995-04-06
1997-07-08
Eastman Kodak Company
Dual aperture lens
US5687028A
(en)
*
1995-07-24
1997-11-11
Asahi Kogaku Kogyo Kabushiki Kaisha
Zoom lens system
JP3709000B2
(en)
*
1995-12-12
2005-10-19
ペンタックス株式会社
Super wide-angle zoom lens camera
US6075644A
(en)
*
1996-12-20
2000-06-13
Night Vision General Partnership
Panoramic night vision goggles
JP3417860B2
(en)
1998-12-24
2003-06-16
ペンタックス株式会社
Zoom lens system and focusing method thereof
JP3495623B2
(en)
1998-12-24
2004-02-09
ペンタックス株式会社
Zoom lens system
JP3538354B2
(en)
*
1999-12-27
2004-06-14
ペンタックス株式会社
Zoom lens system
KR102422126B1
(en)
*
2015-06-09
2022-07-18
한화테크윈 주식회사
Zoom lens system
CN112955803A
(en)
*
2019-12-04
2021-06-11
深圳市大疆创新科技有限公司
Optical system and imaging device
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5229521B2
(en)
*
1972-07-03
1977-08-02
JPS5652291B2
(en)
*
1973-02-13
1981-12-11
JPS5141354B2
(en)
*
1973-02-24
1976-11-09
1977
1977-07-30
JP
JP9184577A
patent/JPS5426754A/en
active
Granted
1978
1978-07-26
US
US05/928,321
patent/US4196969A/en
not_active
Expired – Lifetime
1978-07-27
GB
GB787831422A
patent/GB2001779B/en
not_active
Expired
1978-07-28
DE
DE2833309A
patent/DE2833309C3/en
not_active
Expired
Also Published As
Publication number
Publication date
DE2833309A1
(en)
1979-02-01
GB2001779B
(en)
1982-01-27
DE2833309B2
(en)
1981-06-04
JPS5426754A
(en)
1979-02-28
US4196969A
(en)
1980-04-08
DE2833309C3
(en)
1982-02-18
JPS5713850B2
(en)
1982-03-19
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Legal Events
Date
Code
Title
Description
1983-07-06
746
Register noted ‘licences of right’ (sect. 46/1977)
1994-03-23
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19930727
