NL97530C - - Google Patents
Info
- Publication number
- NL97530C NL97530C NL97530DC NL97530C NL 97530 C NL97530 C NL 97530C NL 97530D C NL97530D C NL 97530DC NL 97530 C NL97530 C NL 97530C
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH709172X | 1951-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL97530C true NL97530C (fr) |
Family
ID=4530627
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL97530D NL97530C (fr) | 1951-08-30 | ||
| NLAANVRAGE7605535,A NL171273B (nl) | 1951-08-30 | Werkwijze voor het polymeriseren van alkenen en werkwijze voor het bereiden van een chroomoxyde-op drager-katalysator. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7605535,A NL171273B (nl) | 1951-08-30 | Werkwijze voor het polymeriseren van alkenen en werkwijze voor het bereiden van een chroomoxyde-op drager-katalysator. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2670659A (fr) |
| FR (1) | FR1065363A (fr) |
| GB (1) | GB709172A (fr) |
| NL (2) | NL171273B (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH320404A (de) * | 1953-03-17 | 1957-03-31 | Zeiss Carl Fa | Photographisches Objektiv |
| DE1048042B (de) * | 1954-04-02 | 1958-12-31 | Schneider Co Optische Werke | Gauss-Doppelobjektiv aus vier in Luft stehenden Gliedern |
| US2849918A (en) * | 1954-04-17 | 1958-09-02 | Carl Zeiss Of Heidenheim | Photographic objective |
| US2744447A (en) * | 1954-06-14 | 1956-05-08 | Zeiss Carl | Photographic objective comprising four air spaced meniscus shaped components |
| DE1083565B (de) * | 1954-08-02 | 1960-06-15 | Zeiss Carl Fa | Photographisches Objektiv |
| US2779239A (en) * | 1954-10-01 | 1957-01-29 | Canon Camera Co | Four component high aperture wide angle objective lens |
| DE1049603B (fr) * | 1954-12-01 | |||
| US2777363A (en) * | 1955-03-23 | 1957-01-15 | Zeiss Jena Veb Carl | Photographic objective comprising two collective and two dispersive members enclosing a diaphragm |
| US2807983A (en) * | 1955-11-14 | 1957-10-01 | Farrand Optical Co Inc | Five component high speed objective of modified gaussian type |
| DE1139292B (de) * | 1957-06-04 | 1962-11-08 | Farrand Optical Co Inc | Objektiv |
| JPS59177514A (ja) * | 1983-03-29 | 1984-10-08 | Olympus Optical Co Ltd | 写真レンズ |
| CN109683283B (zh) * | 2019-01-21 | 2021-01-01 | 上海理工大学 | 一种物像等距的有限远共轭光学系统 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1168873A (en) * | 1913-06-04 | 1916-01-18 | Lacour Berthiot Sa Des Ets | Objective. |
| US2084309A (en) * | 1934-06-16 | 1937-06-22 | Zeiss Ikon Ag | Photographic lens system |
| US2171640A (en) * | 1936-08-15 | 1939-09-05 | Leitz Ernst Gmbh | Photographic objective |
| US2499264A (en) * | 1944-02-25 | 1950-02-28 | Wray Optical Works Ltd | Large aperture spherically corrected objective having two outer positive components and two inner negative meniscus components with one cemented surface |
| US2446402A (en) * | 1946-09-21 | 1948-08-03 | Eastman Kodak Co | Camera lens |
-
0
- NL NL97530D patent/NL97530C/xx active
- NL NLAANVRAGE7605535,A patent/NL171273B/xx unknown
-
1952
- 1952-07-15 FR FR1065363D patent/FR1065363A/fr not_active Expired
- 1952-07-29 US US301455A patent/US2670659A/en not_active Expired - Lifetime
- 1952-09-01 GB GB21876/52A patent/GB709172A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB709172A (en) | 1954-05-19 |
| US2670659A (en) | 1954-03-02 |
| FR1065363A (fr) | 1954-05-24 |
| NL171273B (nl) |