JPS6212115U - - Google Patents

Info

Publication number
JPS6212115U
JPS6212115U JP9015786U JP9015786U JPS6212115U JP S6212115 U JPS6212115 U JP S6212115U JP 9015786 U JP9015786 U JP 9015786U JP 9015786 U JP9015786 U JP 9015786U JP S6212115 U JPS6212115 U JP S6212115U
Authority
JP
Japan
Prior art keywords
focusing
refractive power
movement
utility
amount
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
JP9015786U
Other languages
English (en)
Other versions
JPS6331041Y2 (ja
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 JP1986090157U priority Critical patent/JPS6331041Y2/ja
Publication of JPS6212115U publication Critical patent/JPS6212115U/ja
Application granted granted Critical
Publication of JPS6331041Y2 publication Critical patent/JPS6331041Y2/ja
Expired legal-status Critical Current

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  • Lenses (AREA)

Description

【図面の簡単な説明】
第１図Ａ，Ｂは実施例１のレンズ断面図。第２
図から第５図までは実施例１の収差曲線図。第６
図Ａ，Ｂは実施例１のレンズ断面図。第７図から
第９図までは実施例２の収差曲線図。第１０図Ａ
，Ｂは実施例３のレンズ断面図。第１１図から第
１３図までは実施例３の収差曲線図。第１４図か
ら第１６図まではカム環の展開図。第１７図と第
１８図はフオーカシングに伴う光線の変形を示す
光学断面図。 図中、は第１フオーカシングレンズ部、は
第２フオーカシングレンズ部、は固定レンズ部
、Ｍはメリデイオナル像面、Ｓはサジタル像面で
ある。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 物体側より順に正屈折力を持つ第１フオー
    カシング部、負屈折力を持つ第２フオーカシング
    部そして正屈折力を持つ固定レンズ部から成り、
    第１と第２のフオーカシング部を互いに逆方向へ
    移動させてフオーカシングすることを特徴とする
    望遠レンズ。 (2) 前記第１フオーカシング部の移動量をＳ１
    とし、前記第２フオーカシング部の移動量をＳ２
    としたとき、０．７＜｜Ｓ１｜｜Ｓ２｜＜１．４
    を満たすことを特徴とする実用新案登録請求の範
    囲(1)項記載の望遠レンズ。
JP1986090157U 1986-06-12 1986-06-12 Expired JPS6331041Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986090157U JPS6331041Y2 (ja) 1986-06-12 1986-06-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986090157U JPS6331041Y2 (ja) 1986-06-12 1986-06-12

Publications (2)

Publication Number Publication Date
JPS6212115U true JPS6212115U (ja) 1987-01-24
JPS6331041Y2 JPS6331041Y2 (ja) 1988-08-19

Family

ID=30949767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986090157U Expired JPS6331041Y2 (ja) 1986-06-12 1986-06-12

Country Status (1)

Country Link
JP (1) JPS6331041Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178326A (en) * 1974-12-28 1976-07-07 Nippon Kogaku Kk Boenrenzu
JPS5255639A (en) * 1975-09-30 1977-05-07 Nippon Chemical Ind Telephoto lens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178326A (en) * 1974-12-28 1976-07-07 Nippon Kogaku Kk Boenrenzu
JPS5255639A (en) * 1975-09-30 1977-05-07 Nippon Chemical Ind Telephoto lens

Also Published As

Publication number Publication date
JPS6331041Y2 (ja) 1988-08-19

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