JPS525545A - Zoom projection objective - Google Patents
Zoom projection objectiveInfo
- Publication number
- JPS525545A JPS525545A JP51071657A JP7165776A JPS525545A JP S525545 A JPS525545 A JP S525545A JP 51071657 A JP51071657 A JP 51071657A JP 7165776 A JP7165776 A JP 7165776A JP S525545 A JPS525545 A JP S525545A
- Authority
- JP
- Japan
- Prior art keywords
- projection objective
- zoom projection
- zoom
- objective
- projection
- 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.)
- Pending
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
- G02B15/1435—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 negative
- G02B15/143507—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 negative arranged -++
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT492875A AT336918B (de) | 1975-06-26 | 1975-06-26 | Pankratisches projektionsobjektiv |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS525545A true JPS525545A (en) | 1977-01-17 |
Family
ID=3569989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51071657A Pending JPS525545A (en) | 1975-06-26 | 1976-06-17 | Zoom projection objective |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS525545A (de) |
| AT (1) | AT336918B (de) |
| DE (1) | DE2626696A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3700162A1 (de) * | 1986-09-01 | 1988-03-03 | Docter Optic Wetzlar Gmbh | Varioobjektiv fuer projektionszwecke |
-
1975
- 1975-06-26 AT AT492875A patent/AT336918B/de not_active IP Right Cessation
-
1976
- 1976-06-15 DE DE19762626696 patent/DE2626696A1/de not_active Withdrawn
- 1976-06-17 JP JP51071657A patent/JPS525545A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AT336918B (de) | 1977-06-10 |
| ATA492875A (de) | 1976-09-15 |
| DE2626696A1 (de) | 1977-01-13 |
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