JPS6114492B2 - - Google Patents
Info
- Publication number
- JPS6114492B2 JPS6114492B2 JP11599679A JP11599679A JPS6114492B2 JP S6114492 B2 JPS6114492 B2 JP S6114492B2 JP 11599679 A JP11599679 A JP 11599679A JP 11599679 A JP11599679 A JP 11599679A JP S6114492 B2 JPS6114492 B2 JP S6114492B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- group
- rear attachment
- positive
- focal length
- 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
- 239000002131 composite material Substances 0.000 claims description 3
- 230000005499 meniscus Effects 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 26
- 206010010071 Coma Diseases 0.000 description 5
- 201000009310 astigmatism Diseases 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 125000001475 halogen functional group Chemical group 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11599679A JPS5639513A (en) | 1979-09-10 | 1979-09-10 | Rear attachment lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11599679A JPS5639513A (en) | 1979-09-10 | 1979-09-10 | Rear attachment lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639513A JPS5639513A (en) | 1981-04-15 |
JPS6114492B2 true JPS6114492B2 (US20090163788A1-20090625-C00002.png) | 1986-04-18 |
Family
ID=14676263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11599679A Granted JPS5639513A (en) | 1979-09-10 | 1979-09-10 | Rear attachment lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639513A (US20090163788A1-20090625-C00002.png) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5784417A (en) * | 1980-11-13 | 1982-05-26 | Canon Inc | Optical system for focal length conversion |
JPS5886511A (ja) | 1981-11-19 | 1983-05-24 | Olympus Optical Co Ltd | アタツチメントレンズ |
JPS62235915A (ja) * | 1986-04-04 | 1987-10-16 | Asahi Optical Co Ltd | リアアタツチメントレンズ |
JP7238199B2 (ja) * | 2019-07-04 | 2023-03-13 | キヤノン株式会社 | テレコンバータレンズ、レンズ装置、および、撮像装置 |
JP7171519B2 (ja) * | 2019-07-04 | 2022-11-15 | キヤノン株式会社 | テレコンバータレンズ、レンズ装置、および、撮像装置 |
-
1979
- 1979-09-10 JP JP11599679A patent/JPS5639513A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5639513A (en) | 1981-04-15 |
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