JPS5614209A - Lens barrel of zoom lens - Google Patents
Lens barrel of zoom lensInfo
- Publication number
- JPS5614209A JPS5614209A JP9074279A JP9074279A JPS5614209A JP S5614209 A JPS5614209 A JP S5614209A JP 9074279 A JP9074279 A JP 9074279A JP 9074279 A JP9074279 A JP 9074279A JP S5614209 A JPS5614209 A JP S5614209A
- Authority
- JP
- Japan
- Prior art keywords
- intermediate member
- ring
- lens
- backward
- lens group
- 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
Landscapes
- Lens Barrels (AREA)
Abstract
PURPOSE: To make the lens compact and sufficiently strong by providing an intermediate member which screws together a zooming member and a holding member for the 1st optical system and so constituting these that the 1st optical system is mov ed rectilinearly by the intermediate member at the zooming.
CONSTITUTION: The 1st lens group 1 and a distance ring 3 are integrally coupled and are coupled to an intermediate member 5 having screws on its inside and outside circumferences because the screws 5a and 3a on its inside circumferential side are intermeshed. The intermediate member 5 fits into linear guide grooves 8a, by which its rotatin direction is defined. The screw 5b of its outside circumferential surface is intermeshed with the screw 4a existing on the inside circumference of a zoom ring 4. Hence, if the zoom ring 4 is rotated, the intermediate member 5 moves rectilinearly forward or backward in the optical axis direction, causing the 1st lens group 1 and the distance ring 3 to move rectilinearly forward and backward as well. When the distance ring 3 is rotated, only the ring 3 and lens group 1 move rectilinearly forward and backward.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9074279A JPS5614209A (en) | 1979-07-17 | 1979-07-17 | Lens barrel of zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9074279A JPS5614209A (en) | 1979-07-17 | 1979-07-17 | Lens barrel of zoom lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5614209A true JPS5614209A (en) | 1981-02-12 |
Family
ID=14007029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9074279A Pending JPS5614209A (en) | 1979-07-17 | 1979-07-17 | Lens barrel of zoom lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5614209A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5920530U (en) * | 1982-07-30 | 1984-02-08 | オムロン株式会社 | push button switch |
-
1979
- 1979-07-17 JP JP9074279A patent/JPS5614209A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5920530U (en) * | 1982-07-30 | 1984-02-08 | オムロン株式会社 | push button switch |
JPH0142897Y2 (en) * | 1982-07-30 | 1989-12-14 |
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