JPS6131292Y2 - - Google Patents
Info
- Publication number
- JPS6131292Y2 JPS6131292Y2 JP5178781U JP5178781U JPS6131292Y2 JP S6131292 Y2 JPS6131292 Y2 JP S6131292Y2 JP 5178781 U JP5178781 U JP 5178781U JP 5178781 U JP5178781 U JP 5178781U JP S6131292 Y2 JPS6131292 Y2 JP S6131292Y2
- Authority
- JP
- Japan
- Prior art keywords
- group
- lens
- focal length
- positive
- zoom lens
- 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
- 230000005499 meniscus Effects 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5178781U JPS6131292Y2 (en:Method) | 1981-04-10 | 1981-04-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5178781U JPS6131292Y2 (en:Method) | 1981-04-10 | 1981-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57164704U JPS57164704U (en:Method) | 1982-10-18 |
JPS6131292Y2 true JPS6131292Y2 (en:Method) | 1986-09-11 |
Family
ID=29848503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5178781U Expired JPS6131292Y2 (en:Method) | 1981-04-10 | 1981-04-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6131292Y2 (en:Method) |
-
1981
- 1981-04-10 JP JP5178781U patent/JPS6131292Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57164704U (en:Method) | 1982-10-18 |
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