JPH0211883B2 - - Google Patents
Info
- Publication number
- JPH0211883B2 JPH0211883B2 JP7439080A JP7439080A JPH0211883B2 JP H0211883 B2 JPH0211883 B2 JP H0211883B2 JP 7439080 A JP7439080 A JP 7439080A JP 7439080 A JP7439080 A JP 7439080A JP H0211883 B2 JPH0211883 B2 JP H0211883B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- object side
- spherical aberration
- becomes
- angle
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000005499 meniscus Effects 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 37
- 230000002093 peripheral effect Effects 0.000 description 11
- 206010010071 Coma Diseases 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 201000009310 astigmatism Diseases 0.000 description 5
- 239000002131 composite material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
- G02B9/14—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - +
- G02B9/16—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + all the components being simple
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7439080A JPS572012A (en) | 1980-06-04 | 1980-06-04 | Triplet lens having last diaphragm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7439080A JPS572012A (en) | 1980-06-04 | 1980-06-04 | Triplet lens having last diaphragm |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS572012A JPS572012A (en) | 1982-01-07 |
JPH0211883B2 true JPH0211883B2 (en]) | 1990-03-16 |
Family
ID=13545795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7439080A Granted JPS572012A (en) | 1980-06-04 | 1980-06-04 | Triplet lens having last diaphragm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS572012A (en]) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933416A (ja) * | 1982-08-20 | 1984-02-23 | Olympus Optical Co Ltd | 写真撮影用アダプタ−レンズ |
US4542961A (en) * | 1983-03-03 | 1985-09-24 | Canon Kabushiki Kaisha | Triplet type objective |
JPS61134720A (ja) * | 1984-12-05 | 1986-06-21 | Nitto Kogaku Kk | フアクシミリ用レンズ |
JPH0792542B2 (ja) * | 1986-02-07 | 1995-10-09 | ミノルタ株式会社 | 絞り後置のトリプレツトレンズ系 |
JP2683895B2 (ja) * | 1987-01-22 | 1997-12-03 | 旭光学工業株式会社 | 複写用レンズ |
JP2808628B2 (ja) * | 1988-11-29 | 1998-10-08 | 株式会社ニコン | ビハインド絞りを有するトリプレットレンズ |
-
1980
- 1980-06-04 JP JP7439080A patent/JPS572012A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS572012A (en) | 1982-01-07 |
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