BE741427A - - Google Patents
Info
- Publication number
- BE741427A BE741427A BE741427DA BE741427A BE 741427 A BE741427 A BE 741427A BE 741427D A BE741427D A BE 741427DA BE 741427 A BE741427 A BE 741427A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
- G02B9/36—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- +
- G02B9/38—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- + both - components being meniscus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77414168A | 1968-11-07 | 1968-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE741427A true BE741427A (https=) | 1970-05-08 |
Family
ID=25100357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE741427D BE741427A (https=) | 1968-11-07 | 1969-11-07 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3619036A (https=) |
| JP (1) | JPS498336B1 (https=) |
| AT (1) | AT316165B (https=) |
| BE (1) | BE741427A (https=) |
| CA (1) | CA925731A (https=) |
| CH (1) | CH520943A (https=) |
| DE (1) | DE1955667C3 (https=) |
| FR (1) | FR2022792A1 (https=) |
| GB (1) | GB1252086A (https=) |
| NL (1) | NL166793C (https=) |
| SE (1) | SE345526B (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807836A (en) * | 1973-01-02 | 1974-04-30 | Polaroid Corp | Compact four element objective lenses of plastic and glass |
| JPS5485118U (https=) * | 1977-11-24 | 1979-06-16 | ||
| SE468335B (sv) * | 1988-09-15 | 1992-12-14 | Nova Onab Optica Ab | Projektionsoptik |
| JP3341934B2 (ja) * | 1993-10-07 | 2002-11-05 | 富士写真光機株式会社 | 結像レンズ |
| US6680795B2 (en) * | 2000-08-23 | 2004-01-20 | The United States Of America As Represented By The Secretary Of The Interior | Underwater microscope system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190524391A (en) * | 1905-11-25 | 1906-09-13 | Harold Dennis Taylor | Improvements in Photographic Lenses. |
| US2338614A (en) * | 1942-06-17 | 1944-01-04 | Eastman Kodak Co | Lens |
| US2503789A (en) * | 1946-09-21 | 1950-04-11 | Eastman Kodak Co | Focusing objective lens |
-
1968
- 1968-11-07 US US774141A patent/US3619036A/en not_active Expired - Lifetime
-
1969
- 1969-10-31 CA CA066392A patent/CA925731A/en not_active Expired
- 1969-11-03 GB GB1252086D patent/GB1252086A/en not_active Expired
- 1969-11-05 DE DE1955667A patent/DE1955667C3/de not_active Expired
- 1969-11-06 AT AT1045969A patent/AT316165B/de not_active IP Right Cessation
- 1969-11-06 SE SE15223/69A patent/SE345526B/xx unknown
- 1969-11-06 FR FR6938261A patent/FR2022792A1/fr not_active Withdrawn
- 1969-11-07 CH CH1662969A patent/CH520943A/de not_active IP Right Cessation
- 1969-11-07 JP JP44088802A patent/JPS498336B1/ja active Pending
- 1969-11-07 NL NL6916842.A patent/NL166793C/xx not_active IP Right Cessation
- 1969-11-07 BE BE741427D patent/BE741427A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1252086A (https=) | 1971-11-03 |
| NL166793C (nl) | 1981-09-15 |
| CH520943A (de) | 1972-03-31 |
| AT316165B (de) | 1974-06-25 |
| US3619036A (en) | 1971-11-09 |
| DE1955667B2 (de) | 1973-10-25 |
| FR2022792A1 (https=) | 1970-08-07 |
| SE345526B (https=) | 1972-05-29 |
| DE1955667A1 (de) | 1970-07-30 |
| JPS498336B1 (https=) | 1974-02-26 |
| NL6916842A (https=) | 1970-05-11 |
| CA925731A (en) | 1973-05-08 |
| NL166793B (nl) | 1981-04-15 |
| DE1955667C3 (de) | 1974-05-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: POLAROID CORP. Effective date: 19881130 |