NL6901141A - - Google Patents
Info
- Publication number
- NL6901141A NL6901141A NL6901141A NL6901141A NL6901141A NL 6901141 A NL6901141 A NL 6901141A NL 6901141 A NL6901141 A NL 6901141A NL 6901141 A NL6901141 A NL 6901141A NL 6901141 A NL6901141 A NL 6901141A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
- G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
- G02B15/143105—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged +-+
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Microscoopes, Condenser (AREA)
- Telescopes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4026/68A GB1260653A (en) | 1968-01-25 | 1968-01-25 | Improvements in or relating to optical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6901141A true NL6901141A (de) | 1969-07-29 |
Family
ID=9769343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6901141A NL6901141A (de) | 1968-01-25 | 1969-01-23 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3619035A (de) |
| AT (1) | AT301900B (de) |
| CH (1) | CH506798A (de) |
| DE (1) | DE1903626A1 (de) |
| FR (1) | FR2000764A1 (de) |
| GB (1) | GB1260653A (de) |
| NL (1) | NL6901141A (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3992083A (en) * | 1973-03-23 | 1976-11-16 | Canon Kabushiki Kaisha | Variable focal length optical system of super-high magnification ratio |
| US3915557A (en) * | 1974-04-19 | 1975-10-28 | Optigon Res & Dev Corp | Zoom lens |
| JPS54133355A (en) * | 1978-04-07 | 1979-10-17 | Nippon Chemical Ind | Erect type zoom telephoto optical system |
| JPS5576318A (en) * | 1978-12-05 | 1980-06-09 | Canon Inc | Zoom lens system |
| GB2107899B (en) * | 1981-10-20 | 1985-12-11 | Mitutoyo Mfg Co Ltd | Projecting apparatus |
| JPS59172617A (ja) * | 1983-03-22 | 1984-09-29 | Olympus Optical Co Ltd | 自動制御式照明光学系を備えた顕微鏡 |
| JPS61122623A (ja) * | 1984-11-19 | 1986-06-10 | Canon Inc | 投影装置 |
| US5668660A (en) * | 1994-11-29 | 1997-09-16 | Hunt; Gary D. | Microscope with plural zoom lens assemblies in series |
| JP4084061B2 (ja) * | 2002-03-18 | 2008-04-30 | 独立行政法人科学技術振興機構 | 高安定性光学顕微鏡 |
| DE10355523A1 (de) * | 2003-11-21 | 2005-08-11 | Carl Zeiss Jena Gmbh | Auflicht-Fluoreszenz-Stereomikroskop |
| DE102008041819A1 (de) * | 2008-09-04 | 2010-03-11 | Leica Microsystems (Schweiz) Ag | Optisches Abbildungssystem |
| WO2020074065A1 (de) * | 2018-10-09 | 2020-04-16 | Eardley Holding Ag | Optische baugruppe, optisches instrument und verfahren |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2209532A (en) * | 1938-05-27 | 1940-07-30 | Zeiss Carl Fa | Microscope |
| US3185029A (en) * | 1961-01-23 | 1965-05-25 | Bausch & Lomb | Linear zoom optical system |
| US3057259A (en) * | 1961-06-22 | 1962-10-09 | Bausch & Lomb | Variable magnification optical systems |
| US3353891A (en) * | 1964-06-18 | 1967-11-21 | Bausch & Lomb | Zoom lens system having front mounted axially movable aperture stop to control numerical aperture during magnification change |
| US3421807A (en) * | 1967-09-08 | 1969-01-14 | Bausch & Lomb | Zoom lens system for microscope |
-
1968
- 1968-01-25 GB GB4026/68A patent/GB1260653A/en not_active Expired
-
1969
- 1969-01-23 NL NL6901141A patent/NL6901141A/xx unknown
- 1969-01-24 AT AT75169A patent/AT301900B/de not_active IP Right Cessation
- 1969-01-24 US US793701*A patent/US3619035A/en not_active Expired - Lifetime
- 1969-01-24 FR FR6901471A patent/FR2000764A1/fr not_active Withdrawn
- 1969-01-24 CH CH112969A patent/CH506798A/fr not_active IP Right Cessation
- 1969-01-24 DE DE19691903626 patent/DE1903626A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH506798A (fr) | 1971-04-30 |
| DE1903626A1 (de) | 1969-09-04 |
| GB1260653A (en) | 1972-01-19 |
| AT301900B (de) | 1972-09-25 |
| FR2000764A1 (de) | 1969-09-12 |
| US3619035A (en) | 1971-11-09 |