JPS59164021U - 色消し対物レンズ - Google Patents

色消し対物レンズ

Info

Publication number
JPS59164021U
JPS59164021U JP3319084U JP3319084U JPS59164021U JP S59164021 U JPS59164021 U JP S59164021U JP 3319084 U JP3319084 U JP 3319084U JP 3319084 U JP3319084 U JP 3319084U JP S59164021 U JPS59164021 U JP S59164021U
Authority
JP
Japan
Prior art keywords
lens
positive
refractive index
objective lens
achromatic objective
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
JP3319084U
Other languages
English (en)
Other versions
JPS6144167Y2 (ja
Inventor
新井 保則
Original Assignee
旭光学工業株式会社
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 旭光学工業株式会社 filed Critical 旭光学工業株式会社
Priority to JP3319084U priority Critical patent/JPS59164021U/ja
Publication of JPS59164021U publication Critical patent/JPS59164021U/ja
Application granted granted Critical
Publication of JPS6144167Y2 publication Critical patent/JPS6144167Y2/ja
Granted legal-status Critical Current

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  • Lenses (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【図面の簡単な説明】
第1図は本考案の実施例のレンズ構成図、第2図は無限
遠物体に対する実施例の収差図であり、aは球面収差、
正弦条件、bは色収差、Cは非点収差を示す。

Claims (1)

  1. 【実用新案登録請求の範囲】 正、負、正の3枚のレンズより構成され、一方の正レン
    ズをL1、負レンズをL2、他方の正レンズをL3とし
    たとき、 (1)40<ν2<45 (2)p2*<0.05700,P2**>0.330
    0(3)ν1>ν2+15 (4)|ν3−ν2|<5 (5)P3*−P2*>0.005,P2**−p3*
    *>0 (6)0.15f<−f2<0.5f (7)0.5<f1/f3<2.0 の条件を満たすレンズであって、以下の諸元を有する色
    消し対物レンズ。 ただし ν1:レンズL1のアツベ数 P1*:レンズL1の短波長側部分分散比で、P*は硝
    材のg.c,F線に対する屈折率をng,nc,npと
    するとき P*=(ng−nF)/(nF−nc)Pi**:レン
    ズLiの長波長側部分分散比で、P**は硝材のA’,
    C,F線に対する屈折率をnA’nc,npとするとき P**=(nc−nA’)/(nF−nc)とするf:
    全系の焦点距離 f1:レンズL1の焦点距離 R1:第i面の曲率半径 d1:第i番目のレンズ厚またはレンズ間隔ni:レン
    ズL1id線の屈折率。
JP3319084U 1984-03-08 1984-03-08 色消し対物レンズ Granted JPS59164021U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3319084U JPS59164021U (ja) 1984-03-08 1984-03-08 色消し対物レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3319084U JPS59164021U (ja) 1984-03-08 1984-03-08 色消し対物レンズ

Publications (2)

Publication Number Publication Date
JPS59164021U true JPS59164021U (ja) 1984-11-02
JPS6144167Y2 JPS6144167Y2 (ja) 1986-12-12

Family

ID=30163993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3319084U Granted JPS59164021U (ja) 1984-03-08 1984-03-08 色消し対物レンズ

Country Status (1)

Country Link
JP (1) JPS59164021U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11480757B2 (en) 2019-10-03 2022-10-25 Largan Precision Co., Ltd. Imaging optical system, imaging apparatus and electronic device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5164941A (ja) * 1974-12-03 1976-06-04 Goto Optical Mfg Co Sanmaidamachoirokeshitaibutsurenzu
JPS5168843A (ja) * 1974-12-11 1976-06-14 Goto Optical Mfg Co Tentaiyoahokuromaatotaibutsurenzu

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5164941A (ja) * 1974-12-03 1976-06-04 Goto Optical Mfg Co Sanmaidamachoirokeshitaibutsurenzu
JPS5168843A (ja) * 1974-12-11 1976-06-14 Goto Optical Mfg Co Tentaiyoahokuromaatotaibutsurenzu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11480757B2 (en) 2019-10-03 2022-10-25 Largan Precision Co., Ltd. Imaging optical system, imaging apparatus and electronic device

Also Published As

Publication number Publication date
JPS6144167Y2 (ja) 1986-12-12

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