BE822016A - VARIABLE GRANDING OPTICAL SYSTEM - Google Patents
VARIABLE GRANDING OPTICAL SYSTEMInfo
- Publication number
- BE822016A BE822016A BE150353A BE150353A BE822016A BE 822016 A BE822016 A BE 822016A BE 150353 A BE150353 A BE 150353A BE 150353 A BE150353 A BE 150353A BE 822016 A BE822016 A BE 822016A
- Authority
- BE
- Belgium
- Prior art keywords
- granding
- variable
- optical system
- optical
- variable granding
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7339887A FR2251019A1 (en) | 1973-11-09 | 1973-11-09 | Optical system of variable magnification - is between fixed relative object and image planes and has single movable optics |
Publications (1)
Publication Number | Publication Date |
---|---|
BE822016A true BE822016A (en) | 1975-05-09 |
Family
ID=9127517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE150353A BE822016A (en) | 1973-11-09 | 1974-11-08 | VARIABLE GRANDING OPTICAL SYSTEM |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE822016A (en) |
FR (1) | FR2251019A1 (en) |
IT (1) | IT1024603B (en) |
NL (1) | NL7414169A (en) |
-
1973
- 1973-11-09 FR FR7339887A patent/FR2251019A1/en active Granted
-
1974
- 1974-10-15 IT IT7007374A patent/IT1024603B/en active
- 1974-10-30 NL NL7414169A patent/NL7414169A/en unknown
- 1974-11-08 BE BE150353A patent/BE822016A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7414169A (en) | 1975-05-13 |
DE2449671A1 (en) | 1975-05-22 |
FR2251019A1 (en) | 1975-06-06 |
IT1024603B (en) | 1978-07-20 |
FR2251019B1 (en) | 1976-11-19 |
DE2449671B2 (en) | 1976-05-26 |
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