JPH0526169B2 - - Google Patents
Info
- Publication number
- JPH0526169B2 JPH0526169B2 JP58116490A JP11649083A JPH0526169B2 JP H0526169 B2 JPH0526169 B2 JP H0526169B2 JP 58116490 A JP58116490 A JP 58116490A JP 11649083 A JP11649083 A JP 11649083A JP H0526169 B2 JPH0526169 B2 JP H0526169B2
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- cam
- lens barrel
- holding frame
- focusing
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 44
- 230000004075 alteration Effects 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 description 11
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11649083A JPS607412A (ja) | 1983-06-28 | 1983-06-28 | ズ−ムレンズ鏡筒 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11649083A JPS607412A (ja) | 1983-06-28 | 1983-06-28 | ズ−ムレンズ鏡筒 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS607412A JPS607412A (ja) | 1985-01-16 |
JPH0526169B2 true JPH0526169B2 (de) | 1993-04-15 |
Family
ID=14688410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11649083A Granted JPS607412A (ja) | 1983-06-28 | 1983-06-28 | ズ−ムレンズ鏡筒 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS607412A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4508318B2 (ja) * | 1999-09-10 | 2010-07-21 | キヤノン株式会社 | レンズ鏡筒及び該レンズ鏡筒を有する投射表示装置 |
JP4660141B2 (ja) * | 2004-08-20 | 2011-03-30 | 日東光学株式会社 | ズームレンズ鏡筒 |
JP2009024631A (ja) * | 2007-07-20 | 2009-02-05 | Hitachi Ltd | ガスタービン設備 |
JP7127634B2 (ja) * | 2019-12-19 | 2022-08-30 | セイコーエプソン株式会社 | 投写光学系およびプロジェクター |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5415760A (en) * | 1977-07-06 | 1979-02-05 | Minolta Camera Co Ltd | Two-component wide angle zoom lens system of divergent refractive power group precedence type |
JPS5536833A (en) * | 1978-09-08 | 1980-03-14 | Nippon Kogaku Kk <Nikon> | Wide angle zoom lens system of closest focusing distance |
JPS5614212A (en) * | 1979-07-13 | 1981-02-12 | Minolta Camera Co Ltd | Zoom lens system |
JPS57108807A (en) * | 1980-12-25 | 1982-07-07 | Ricoh Co Ltd | Compensating device for short-distance shooting of photographing lens |
-
1983
- 1983-06-28 JP JP11649083A patent/JPS607412A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5415760A (en) * | 1977-07-06 | 1979-02-05 | Minolta Camera Co Ltd | Two-component wide angle zoom lens system of divergent refractive power group precedence type |
JPS5536833A (en) * | 1978-09-08 | 1980-03-14 | Nippon Kogaku Kk <Nikon> | Wide angle zoom lens system of closest focusing distance |
JPS5614212A (en) * | 1979-07-13 | 1981-02-12 | Minolta Camera Co Ltd | Zoom lens system |
JPS57108807A (en) * | 1980-12-25 | 1982-07-07 | Ricoh Co Ltd | Compensating device for short-distance shooting of photographing lens |
Also Published As
Publication number | Publication date |
---|---|
JPS607412A (ja) | 1985-01-16 |
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