FR897540A - Photographic lens - Google Patents
Photographic lensInfo
- Publication number
- FR897540A FR897540A FR897540DA FR897540A FR 897540 A FR897540 A FR 897540A FR 897540D A FR897540D A FR 897540DA FR 897540 A FR897540 A FR 897540A
- Authority
- FR
- France
- Prior art keywords
- photographic lens
- photographic
- lens
- 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.)
- Expired
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE897540X | 1942-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR897540A true FR897540A (en) | 1945-03-23 |
Family
ID=6848767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR897540D Expired FR897540A (en) | 1942-09-05 | 1943-08-26 | Photographic lens |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR897540A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574995A (en) * | 1950-08-11 | 1951-11-13 | Eastman Kodak Co | Photographic objective consisting of three simple elements and a cemented triplet therebehind |
DE885619C (en) * | 1950-10-11 | 1953-08-06 | Optische Ind De Oude Delft Nv | Bright, photographic lens consisting of three single lenses and one double lens |
-
1943
- 1943-08-26 FR FR897540D patent/FR897540A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574995A (en) * | 1950-08-11 | 1951-11-13 | Eastman Kodak Co | Photographic objective consisting of three simple elements and a cemented triplet therebehind |
DE885619C (en) * | 1950-10-11 | 1953-08-06 | Optische Ind De Oude Delft Nv | Bright, photographic lens consisting of three single lenses and one double lens |
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