JPS5511269A - Close-up changeover device of zoom lens - Google Patents
Close-up changeover device of zoom lensInfo
- Publication number
- JPS5511269A JPS5511269A JP8548778A JP8548778A JPS5511269A JP S5511269 A JPS5511269 A JP S5511269A JP 8548778 A JP8548778 A JP 8548778A JP 8548778 A JP8548778 A JP 8548778A JP S5511269 A JPS5511269 A JP S5511269A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- guide hole
- close
- barrel
- shaped guide
- 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.)
- Pending
Links
Abstract
PURPOSE: To obtain a close-up, with the second lens stopped, by drawing back the third lens only, by providing a U-shaped guide hole in a fixed barrel, and providing guide holes for second and thired lenses and a V-shaped guide hole for turning in a rotating lens barrel.
CONSTITUTION: A U-shaped guide hole 5 is provided in a fixed barrel, and second lens guide holes 6, 7, third lens guide holes 8, 9, and a V-shaped guide hole 10 are provided in a rotating lens barrel 4. A stepped protuberance 11 of an operation barrel 1 is inserted into the guide hole 10 through the guide hole 5. In this setup, therefore, when the operation barrel 1 is drawn back to the limit for close-up, the second lens 12 fitted in an extended part 7 of the guide hole 6 does not move, and only the third lens 13 fitted in an extended part 9 of the guide hole 8 retreats, so that close-up may be obtained without requiring attachment lens 3. In addition, only by turning the operation barrel 1 right and left, variable magnification and close-up can be changed over.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8548778A JPS5511269A (en) | 1978-07-12 | 1978-07-12 | Close-up changeover device of zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8548778A JPS5511269A (en) | 1978-07-12 | 1978-07-12 | Close-up changeover device of zoom lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5511269A true JPS5511269A (en) | 1980-01-26 |
Family
ID=13860270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8548778A Pending JPS5511269A (en) | 1978-07-12 | 1978-07-12 | Close-up changeover device of zoom lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5511269A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4415221A (en) * | 1980-10-01 | 1983-11-15 | Tokai Electrie Wire Company Limited | Female type electrical connector |
JPS616279U (en) * | 1984-06-18 | 1986-01-14 | 株式会社 ニチフ端子工業 | electrical connector |
-
1978
- 1978-07-12 JP JP8548778A patent/JPS5511269A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4415221A (en) * | 1980-10-01 | 1983-11-15 | Tokai Electrie Wire Company Limited | Female type electrical connector |
JPS616279U (en) * | 1984-06-18 | 1986-01-14 | 株式会社 ニチフ端子工業 | electrical connector |
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