TW200708760A - A convertible lens - Google Patents

A convertible lens

Info

Publication number
TW200708760A
TW200708760A TW094128249A TW94128249A TW200708760A TW 200708760 A TW200708760 A TW 200708760A TW 094128249 A TW094128249 A TW 094128249A TW 94128249 A TW94128249 A TW 94128249A TW 200708760 A TW200708760 A TW 200708760A
Authority
TW
Taiwan
Prior art keywords
lens assembly
lens
possesses
variable distance
convertible
Prior art date
Application number
TW094128249A
Other languages
English (en)
Other versions
TWI274895B (en
Inventor
Chung-Yuan Kuo
Original Assignee
Asia Optical Co Inc
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 Asia Optical Co Inc filed Critical Asia Optical Co Inc
Priority to TW094128249A priority Critical patent/TWI274895B/zh
Priority to US11/465,059 priority patent/US7466494B2/en
Priority to JP2006222524A priority patent/JP2007052437A/ja
Application granted granted Critical
Publication of TWI274895B publication Critical patent/TWI274895B/zh
Publication of TW200708760A publication Critical patent/TW200708760A/zh

Links

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
    • 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
    • G02B15/142—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 having two groups only
    • 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
    • G02B15/142—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 having two groups only
    • G02B15/1425—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 having two groups only the first group being negative
TW094128249A 2005-08-18 2005-08-18 A convertible lens TWI274895B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW094128249A TWI274895B (en) 2005-08-18 2005-08-18 A convertible lens
US11/465,059 US7466494B2 (en) 2005-08-18 2006-08-16 Compact zoom lens
JP2006222524A JP2007052437A (ja) 2005-08-18 2006-08-17 ズームレンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094128249A TWI274895B (en) 2005-08-18 2005-08-18 A convertible lens

Publications (2)

Publication Number Publication Date
TWI274895B TWI274895B (en) 2007-03-01
TW200708760A true TW200708760A (en) 2007-03-01

Family

ID=37767110

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094128249A TWI274895B (en) 2005-08-18 2005-08-18 A convertible lens

Country Status (3)

Country Link
US (1) US7466494B2 (zh)
JP (1) JP2007052437A (zh)
TW (1) TWI274895B (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4967294B2 (ja) * 2005-09-29 2012-07-04 株式会社ニコン ２群ズームレンズ
JP4978836B2 (ja) * 2007-03-19 2012-07-18 株式会社ニコン ズームレンズ、光学機器、および結像方法
JP2009282465A (ja) * 2008-05-26 2009-12-03 Sony Corp ズームレンズ及び撮像装置
TWI410673B (zh) * 2009-01-22 2013-10-01 Young Optics Inc 變焦鏡頭
CN102129120B (zh) * 2010-01-14 2012-05-16 佛山普立华科技有限公司 投影镜头
JP5312393B2 (ja) * 2010-04-16 2013-10-09 キヤノン株式会社 撮像装置
JP5868186B2 (ja) * 2012-01-06 2016-02-24 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置
WO2013171995A1 (ja) * 2012-05-16 2013-11-21 富士フイルム株式会社 投写用変倍光学系および投写型表示装置
TWI460467B (zh) * 2013-03-08 2014-11-11 Young Optics Inc 變焦鏡頭
US10012832B2 (en) * 2015-06-22 2018-07-03 Microsoft Technology Licensing, Llc Automatic lens design using off-the-shelf components
TWI664469B (zh) * 2018-07-25 2019-07-01 揚明光學股份有限公司 定焦鏡頭
CN114355592B (zh) * 2021-12-29 2023-04-07 福建福光股份有限公司 一种全彩广角小型化变焦光学系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62220915A (ja) * 1986-03-24 1987-09-29 Tokinaa Kogaku Kk ２群ズ−ムレンズ
JPS6396621A (ja) * 1986-10-14 1988-04-27 Konica Corp ２成分ズ−ムレンズ
JPH0827430B2 (ja) * 1988-03-22 1996-03-21 株式会社ニコン ２群ズームレンズ
TW319831B (zh) * 1994-07-29 1997-11-11 Canon Kk
US5619381A (en) * 1995-06-02 1997-04-08 Texas Instruments Incorporated Offset zoom lens for reflective light modulators
JP2000035537A (ja) * 1998-05-12 2000-02-02 Asahi Optical Co Ltd ２群ズ―ムレンズ系
JP2001228399A (ja) * 2000-02-18 2001-08-24 Canon Inc ズームレンズ及びそれを用いた光学機器
JP3503631B2 (ja) * 2001-04-27 2004-03-08 セイコーエプソン株式会社 投映用ズームレンズ及びこれを備えたプロジェクター
US7277232B2 (en) * 2003-01-24 2007-10-02 Nikon Corporation Zoom lens system
TWI288290B (en) * 2005-05-12 2007-10-11 Asia Optical Co Inc Variable focus projection lens
TWI263074B (en) * 2005-08-24 2006-10-01 Asia Optical Co Inc Zoom lens
JP4859178B2 (ja) * 2005-09-21 2012-01-25 オリンパスイメージング株式会社 ２群ズームレンズ及びそれを有する交換レンズ及びそれを有する電子撮像装置

Also Published As

Publication number Publication date
JP2007052437A (ja) 2007-03-01
US20070041102A1 (en) 2007-02-22
TWI274895B (en) 2007-03-01
US7466494B2 (en) 2008-12-16

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees