JPS5764202A - Macrozoom lens barrel - Google Patents
Macrozoom lens barrelInfo
- Publication number
- JPS5764202A JPS5764202A JP55139931A JP13993180A JPS5764202A JP S5764202 A JPS5764202 A JP S5764202A JP 55139931 A JP55139931 A JP 55139931A JP 13993180 A JP13993180 A JP 13993180A JP S5764202 A JPS5764202 A JP S5764202A
- Authority
- JP
- Japan
- Prior art keywords
- macro
- area
- limiting plate
- focal distance
- macrozoom
- 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
- 230000003287 optical effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/105—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens with movable lens means specially adapted for focusing at close distances
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55139931A JPS5764202A (en) | 1980-10-08 | 1980-10-08 | Macrozoom lens barrel |
US06/308,110 US4421389A (en) | 1980-10-08 | 1981-10-02 | Macro zoom lens barrel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55139931A JPS5764202A (en) | 1980-10-08 | 1980-10-08 | Macrozoom lens barrel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5764202A true JPS5764202A (en) | 1982-04-19 |
JPH0145603B2 JPH0145603B2 (en]) | 1989-10-04 |
Family
ID=15256994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55139931A Granted JPS5764202A (en) | 1980-10-08 | 1980-10-08 | Macrozoom lens barrel |
Country Status (2)
Country | Link |
---|---|
US (1) | US4421389A (en]) |
JP (1) | JPS5764202A (en]) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4861147A (en) * | 1982-08-17 | 1989-08-29 | Canon Kabushiki Kaisha | Zoom lens system |
JPS6066216A (ja) * | 1983-09-21 | 1985-04-16 | Asahi Optical Co Ltd | マクロ機構を有するズ−ムレンズ |
DE8428377U1 (de) * | 1984-09-27 | 1984-12-13 | Fa. Carl Zeiss, 7920 Heidenheim | Zoomobjektivfassung |
US4720182A (en) * | 1984-11-08 | 1988-01-19 | Nippon Kogaku K.K. | Zoom lens capable of effecting a macro operation |
US4848884A (en) * | 1987-02-05 | 1989-07-18 | Ricoh Company, Ltd. | Variable focusing lens barrel |
JP3435580B2 (ja) * | 1993-04-30 | 2003-08-11 | コニカ株式会社 | ズームレンズ鏡胴及びカメラ |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54139724A (en) * | 1978-04-21 | 1979-10-30 | Asahi Optical Co Ltd | Device for focusing zoom lens |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784285A (en) * | 1972-06-01 | 1974-01-08 | Ponder & Best | Zoom lens |
JPS5638482Y2 (en]) * | 1976-04-09 | 1981-09-08 | ||
US4171880A (en) * | 1976-12-09 | 1979-10-23 | Fuji Photo Optical Co., Ltd. | Zoom lens system for cameras |
-
1980
- 1980-10-08 JP JP55139931A patent/JPS5764202A/ja active Granted
-
1981
- 1981-10-02 US US06/308,110 patent/US4421389A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54139724A (en) * | 1978-04-21 | 1979-10-30 | Asahi Optical Co Ltd | Device for focusing zoom lens |
Also Published As
Publication number | Publication date |
---|---|
JPH0145603B2 (en]) | 1989-10-04 |
US4421389A (en) | 1983-12-20 |
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