NL137214C - - Google Patents
Info
- Publication number
- NL137214C NL137214C NL137214DC NL137214C NL 137214 C NL137214 C NL 137214C NL 137214D C NL137214D C NL 137214DC NL 137214 C NL137214 C NL 137214C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO8652A DE1177842B (de) | 1962-03-28 | 1962-03-28 | Sehr lichtstarkes fotografisches Objektiv |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL137214C true NL137214C (de) |
Family
ID=7351447
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL288651D NL288651A (de) | 1962-03-28 | ||
| NL137214D NL137214C (de) | 1962-03-28 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL288651D NL288651A (de) | 1962-03-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3300267A (de) |
| DE (1) | DE1177842B (de) |
| GB (1) | GB1012524A (de) |
| NL (2) | NL137214C (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1275301B (de) * | 1967-03-25 | 1968-08-14 | Rodenstock Optik G | Lichtstarkes Objektiv |
| US3445154A (en) * | 1966-08-10 | 1969-05-20 | Rodenstock Optik G | Modified triplet lens system |
| US7733581B2 (en) | 2007-08-24 | 2010-06-08 | Caldwell J Brian | Large aperture imaging optical system |
| US8169717B2 (en) * | 2007-08-24 | 2012-05-01 | Caldwell Photographic, Inc. | Large aperture imaging optical systems |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565411A (en) * | 1943-05-03 | 1944-11-09 | Taylor Taylor & Hobson Ltd | Improvements in or relating to optical objectives |
| GB696902A (en) * | 1950-07-15 | 1953-09-09 | Wray Optical Works Ltd | Improvements relating to optical lenses |
| US2978957A (en) * | 1958-04-03 | 1961-04-11 | Optische Ind De Oude Delft Nv | Optical lens system having a relative aperture larger than f/1 |
-
0
- NL NL288651D patent/NL288651A/xx unknown
- NL NL137214D patent/NL137214C/xx active
-
1962
- 1962-03-28 DE DEO8652A patent/DE1177842B/de active Pending
-
1963
- 1963-02-27 GB GB7949/63A patent/GB1012524A/en not_active Expired
- 1963-03-20 US US266601A patent/US3300267A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1012524A (en) | 1965-12-08 |
| US3300267A (en) | 1967-01-24 |
| NL288651A (de) | |
| DE1177842B (de) | 1964-09-10 |