FR922532A - Improvements to optical lens systems - Google Patents
Improvements to optical lens systemsInfo
- Publication number
- FR922532A FR922532A FR922532DA FR922532A FR 922532 A FR922532 A FR 922532A FR 922532D A FR922532D A FR 922532DA FR 922532 A FR922532 A FR 922532A
- Authority
- FR
- France
- Prior art keywords
- optical lens
- lens systems
- systems
- optical
- 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
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US922532XA | 1945-03-07 | 1945-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR922532A true FR922532A (en) | 1947-06-11 |
Family
ID=22232383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR922532D Expired FR922532A (en) | 1945-03-07 | 1946-02-18 | Improvements to optical lens systems |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR922532A (en) |
-
1946
- 1946-02-18 FR FR922532D patent/FR922532A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR936762A (en) | Improvements to electronic optical systems | |
FR938666A (en) | TV systems | |
FR915131A (en) | Improvements to hydrophoric systems | |
FR909949A (en) | Improvements to television systems | |
FR938282A (en) | Improvements to communication systems | |
FR922532A (en) | Improvements to optical lens systems | |
FR913579A (en) | Improvements to lamps used in centered optical systems | |
FR923401A (en) | Improvements to optical lens systems | |
FR926690A (en) | Improvements to optical systems | |
CH251842A (en) | Optical glass. | |
FR939163A (en) | Improvements to optical projection devices | |
FR1101419A (en) | Improvements to anamorphotic optical systems | |
FR1143595A (en) | Improvements to optical systems | |
FR936816A (en) | Optical system | |
FR939342A (en) | Improvements to automatic direction finding systems | |
FR917663A (en) | Improvements to spherical mirror optical systems | |
FR973041A (en) | Optical systems | |
FR944714A (en) | Optical system | |
FR912213A (en) | Improvements to modulation systems | |
FR941174A (en) | Advanced optical systems including lenses | |
FR930690A (en) | Improvements to optical elements | |
FR1017754A (en) | Improvements to optical systems | |
FR1097034A (en) | Improvements to optical systems | |
FR933834A (en) | Improvements to optical devices | |
FR919139A (en) | Optical device |