JPH0245510U - - Google Patents

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Publication number
JPH0245510U
JPH0245510U JP10207689U JP10207689U JPH0245510U JP H0245510 U JPH0245510 U JP H0245510U JP 10207689 U JP10207689 U JP 10207689U JP 10207689 U JP10207689 U JP 10207689U JP H0245510 U JPH0245510 U JP H0245510U
Authority
JP
Japan
Prior art keywords
lens
auxiliary
main
auxiliary lens
image plane
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.)
Granted
Application number
JP10207689U
Other languages
Japanese (ja)
Other versions
JPH064332Y2 (en
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 filed Critical
Priority to JP1989102076U priority Critical patent/JPH064332Y2/en
Publication of JPH0245510U publication Critical patent/JPH0245510U/ja
Application granted granted Critical
Publication of JPH064332Y2 publication Critical patent/JPH064332Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Lenses (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図と第２図は本考案の数値実施例１のレン
ズ断面図と諸収差図、第３図、第４図、第５図は
本考案の数値実施例２のレンズ断面図と諸収差図
、第６図、第７図は本考案の数値実施例２の撮影
倍率β＝−０．２のときのレンズ断面図と諸収差
図、第８図と第９図は本考案の数値実施例３のレ
ンズ断面図と諸収差図、第１０図、第１１図、第
１２図は本考案の数値実施例４のレンズ断面図と
諸収差図、第１３図、第１４図は本考案の数値実
施例４の撮影倍率β＝−０．１５のときのレンズ
断面図と諸収差図である。 Figures 1 and 2 are cross-sectional views of the lens and various aberrations of Numerical Example 1 of the present invention, and Figures 3, 4, and 5 are cross-sectional views of the lens and various aberrations of Numerical Example 2 of the present invention. Figures 6 and 7 are lens cross-sectional views and various aberration diagrams when photographing magnification β = -0.2 in numerical embodiment 2 of the present invention, and Figures 8 and 9 are numerical implementations of the present invention. The lens sectional view and various aberration diagrams of Example 3, Figures 10, 11, and 12 are the lens sectional view and various aberration diagrams of Numerical Example 4 of the present invention, and Figures 13 and 14 are the lens cross-sectional diagrams and various aberration diagrams of the present invention. FIG. 7 is a cross-sectional view of the lens and various aberration diagrams when the imaging magnification β=−0.15 in Numerical Example 4. FIG.

Claims (1)

【実用新案登録請求の範囲】 (1) それ自体で撮影可能な主レンズと、該主レ
ンズの像面側に位置する絞りと、焦点距離を変化
させるために該絞りと前記主レンズの像面との間
に装着され、かつ離脱自在の補助レンズを備えた
レンズ系に於て、前記補助レンズを装着した際、
ある定められた近距離物体に対しては前記主レン
ズを物体側に繰り出すことによつて焦点調節を行
ない、撮影倍率が０．１５倍を含む近距離物体に
対しては前記補助レンズを移動させることによつ
て焦点調節を行なうことを特徴とする補助レンズ
を備えたレンズ系。 (2) 前記補助レンズは、物体側より順に第１正
レンズ、第２負レンズそして第３正レンズから成
ることを特徴とする実用新案登録請求の範囲第１
項記載の補助レンズを備えたレンズ系。[Claims for Utility Model Registration] (1) A main lens that can take pictures by itself, a diaphragm located on the image plane side of the main lens, and a diaphragm and an image plane of the main lens for changing the focal length. In a lens system equipped with a removable auxiliary lens that is attached between the lens and the lens, when the auxiliary lens is attached,
Focus adjustment is performed for a certain short-distance object by extending the main lens toward the object side, and for a short-distance object with an imaging magnification of 0.15x, the auxiliary lens is moved. A lens system with an auxiliary lens, which is characterized in that it performs focus adjustment. (2) The utility model registration claim 1 is characterized in that the auxiliary lens consists of a first positive lens, a second negative lens, and a third positive lens in order from the object side.
A lens system equipped with the auxiliary lens described in Section 1.
JP1989102076U 1989-08-31 1989-08-31 Lens system with auxiliary lens Expired - Lifetime JPH064332Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989102076U JPH064332Y2 (en) 1989-08-31 1989-08-31 Lens system with auxiliary lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989102076U JPH064332Y2 (en) 1989-08-31 1989-08-31 Lens system with auxiliary lens

Publications (2)

Publication Number Publication Date
JPH0245510U true JPH0245510U (en) 1990-03-28
JPH064332Y2 JPH064332Y2 (en) 1994-02-02

Family

ID=31331650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989102076U Expired - Lifetime JPH064332Y2 (en) 1989-08-31 1989-08-31 Lens system with auxiliary lens

Country Status (1)

Country Link
JP (1) JPH064332Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117270185A (en) * 2023-11-17 2023-12-22 长春长光智欧科技有限公司 Micro-optical system with large numerical aperture and wide spectrum

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132327A (en) * 1974-09-11 1976-03-18 Canon Kk Goshososa no kantannaboenrenzu
JPS5691206A (en) * 1979-12-25 1981-07-24 Canon Inc Wide-angle photographic lens of short overall length

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132327A (en) * 1974-09-11 1976-03-18 Canon Kk Goshososa no kantannaboenrenzu
JPS5691206A (en) * 1979-12-25 1981-07-24 Canon Inc Wide-angle photographic lens of short overall length

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117270185A (en) * 2023-11-17 2023-12-22 长春长光智欧科技有限公司 Micro-optical system with large numerical aperture and wide spectrum
CN117270185B (en) * 2023-11-17 2024-02-20 长春长光智欧科技有限公司 Micro-optical system with large numerical aperture and wide spectrum

Also Published As

Publication number Publication date
JPH064332Y2 (en) 1994-02-02

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