JPS5621106A - Lens barrel of zoom lens having close-up photographing mechanism - Google Patents
Lens barrel of zoom lens having close-up photographing mechanismInfo
- Publication number
- JPS5621106A JPS5621106A JP9776679A JP9776679A JPS5621106A JP S5621106 A JPS5621106 A JP S5621106A JP 9776679 A JP9776679 A JP 9776679A JP 9776679 A JP9776679 A JP 9776679A JP S5621106 A JPS5621106 A JP S5621106A
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- cam
- stationary barrel
- operating part
- movement
- 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.)
- Granted
Links
Landscapes
- Lens Barrels (AREA)
Abstract
PURPOSE: To make possible three kinds of photographing, zooming, ordinary distance by providing a cam section which controls the movement of an optical system making variable power or correction action of the subject image to the stationary barrel and providing an operating member as well as predetermined cam member cooperating with this.
CONSTITUTION: When an operating part 14 is slided rectilinear in the optical axis direction, the operating part 14, connecting barrel 15 and cam member 12 move in one piece in the optical axis direction and the extent of their movement is determined by the pin 1d studded in a stationary barrel 1 and the 1st cam groove 12a of the cam member 12. On the other hand, along with the movement of the operating member 14, a variable power system lens group L3 is extended by way of the pin 8b of a holding member 8 and the cam groove 1b of the stationary barrel 1. At the same time, a correcting system lens group L4 is extended along the cam groove 1c of the stationary barrel by way of the screw 17 of the holding member 10. Next, when the operating part 14 is rotated, a focus adjusting lens group L2 is extended by the helicoid portions 6a, 1a of the front lens barrel 6 and stationary barrel 1. Controlling of zooming, ordinary distance and close up distance photographing may be performed by the operating part 14 alone.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9776679A JPS5621106A (en) | 1979-07-30 | 1979-07-30 | Lens barrel of zoom lens having close-up photographing mechanism |
| US06/173,182 US4322150A (en) | 1979-07-30 | 1980-07-28 | Mechanical mounting system for zoom objective |
| DE19803028783 DE3028783A1 (en) | 1979-07-30 | 1980-07-29 | ZOOM LENS ASSEMBLY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9776679A JPS5621106A (en) | 1979-07-30 | 1979-07-30 | Lens barrel of zoom lens having close-up photographing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5621106A true JPS5621106A (en) | 1981-02-27 |
| JPS6245963B2 JPS6245963B2 (en) | 1987-09-30 |
Family
ID=14200979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9776679A Granted JPS5621106A (en) | 1979-07-30 | 1979-07-30 | Lens barrel of zoom lens having close-up photographing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5621106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5995306U (en) * | 1982-12-17 | 1984-06-28 | 株式会社リコー | Zoom lens barrel capable of close-up photography |
| KR100325181B1 (en) * | 1999-10-02 | 2002-02-21 | 이중구 | Barrle assembly of zoom camera |
-
1979
- 1979-07-30 JP JP9776679A patent/JPS5621106A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5995306U (en) * | 1982-12-17 | 1984-06-28 | 株式会社リコー | Zoom lens barrel capable of close-up photography |
| KR100325181B1 (en) * | 1999-10-02 | 2002-02-21 | 이중구 | Barrle assembly of zoom camera |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6245963B2 (en) | 1987-09-30 |
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