CH680168A5 - - Google Patents
Download PDFInfo
- Publication number
- CH680168A5 CH680168A5 CH783/89A CH78389A CH680168A5 CH 680168 A5 CH680168 A5 CH 680168A5 CH 783/89 A CH783/89 A CH 783/89A CH 78389 A CH78389 A CH 78389A CH 680168 A5 CH680168 A5 CH 680168A5
- Authority
- CH
- Switzerland
- Prior art keywords
- lens
- lens group
- positive
- negative
- fixed
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 7
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims 2
- 229910001634 calcium fluoride Inorganic materials 0.000 claims 2
- 210000001747 pupil Anatomy 0.000 description 8
- 239000004568 cement Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/02—Objectives
- G02B21/025—Objectives with variable magnification
-
- 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
- G02B15/144—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 four groups only
- G02B15/1441—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 four groups only the first group being positive
- G02B15/144109—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 four groups only the first group being positive arranged +--+
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
- G02B21/20—Binocular arrangements
- G02B21/22—Stereoscopic arrangements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD88315523A DD271962A1 (de) | 1988-05-09 | 1988-05-09 | Afokales pankratisches system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH680168A5 true CH680168A5 (https=) | 1992-06-30 |
Family
ID=5599052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH783/89A CH680168A5 (https=) | 1988-05-09 | 1989-03-02 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH680168A5 (https=) |
| DD (1) | DD271962A1 (https=) |
| DE (1) | DE3904190A1 (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837135C5 (de) * | 1997-09-29 | 2016-09-22 | Carl Zeiss Meditec Ag | Afokales Zoomsystem |
| DE102004052253B4 (de) * | 2003-12-10 | 2018-02-08 | Carl Zeiss Meditec Ag | Objektiv für ein Operationsmikroskop, Operationsmikroskop sowie Verfahren zum Einstellen eines Objektivs |
| DE10359733A1 (de) * | 2003-12-19 | 2005-07-14 | Carl Zeiss Jena Gmbh | Afokales Zoomsystem |
| DE102015005777A1 (de) * | 2015-05-08 | 2016-02-18 | Carl Zeiss Meditec Ag | Stereomikroskop mit Zoom-System für Stereomitbeobachter |
-
1988
- 1988-05-09 DD DD88315523A patent/DD271962A1/de not_active IP Right Cessation
-
1989
- 1989-02-13 DE DE3904190A patent/DE3904190A1/de not_active Withdrawn
- 1989-03-02 CH CH783/89A patent/CH680168A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3904190A1 (de) | 1989-11-23 |
| DD271962A1 (de) | 1989-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |