NL6716449A - - Google Patents
Info
- Publication number
- NL6716449A NL6716449A NL6716449A NL6716449A NL6716449A NL 6716449 A NL6716449 A NL 6716449A NL 6716449 A NL6716449 A NL 6716449A NL 6716449 A NL6716449 A NL 6716449A NL 6716449 A NL6716449 A NL 6716449A
- 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
- G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
-
- 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
- G02B15/142—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 two groups only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60015866A | 1966-12-08 | 1966-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6716449A true NL6716449A (xx) | 1968-06-10 |
Family
ID=24402531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6716449A NL6716449A (xx) | 1966-12-08 | 1967-12-04 |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH469277A (xx) |
| DE (1) | DE1572700B1 (xx) |
| FR (1) | FR1542937A (xx) |
| GB (1) | GB1154785A (xx) |
| NL (1) | NL6716449A (xx) |
| SE (1) | SE320517B (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4240724A (en) * | 1979-10-01 | 1980-12-23 | Polaroid Corporation | Zone focusing optical system |
| US4466707A (en) * | 1980-03-21 | 1984-08-21 | Canon Kabushiki Kaisha | Variable magnification lens system |
| US6160668A (en) * | 1998-05-14 | 2000-12-12 | Pilkington Pe Limited | Optical systems |
| GB2339619B (en) * | 1998-05-14 | 2002-05-01 | Pilkington Perkin Elmer Ltd | Optical systems |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR951536A (fr) * | 1944-06-30 | 1949-10-27 | Kodak Pathe | Perfectionnements aux objectifs photographiques |
| DE1087825B (de) * | 1958-07-01 | 1960-08-25 | Zeiss Carl Fa | Photographisches Objektiv |
| FR1239950A (fr) * | 1959-05-30 | 1960-09-02 | Meopta Prevov Narodni Podnik | Objectif photographique à grande luminosité |
-
0
- FR FR1542937D patent/FR1542937A/fr active Active
-
1967
- 1967-10-05 GB GB45431/67A patent/GB1154785A/en not_active Expired
- 1967-12-02 DE DE19671572700 patent/DE1572700B1/de not_active Withdrawn
- 1967-12-04 NL NL6716449A patent/NL6716449A/xx unknown
- 1967-12-06 SE SE16748/67A patent/SE320517B/xx unknown
- 1967-12-08 CH CH1726067A patent/CH469277A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1154785A (en) | 1969-06-11 |
| SE320517B (xx) | 1970-02-09 |
| DE1572700B1 (de) | 1971-10-07 |
| CH469277A (de) | 1969-02-28 |
| FR1542937A (fr) |