GB752179A - Optical objective having a very large aperture - Google Patents
Optical objective having a very large apertureInfo
- Publication number
- GB752179A GB752179A GB2922654A GB2922654A GB752179A GB 752179 A GB752179 A GB 752179A GB 2922654 A GB2922654 A GB 2922654A GB 2922654 A GB2922654 A GB 2922654A GB 752179 A GB752179 A GB 752179A
- Authority
- GB
- United Kingdom
- Prior art keywords
- component
- objective
- large aperture
- meniscus convex
- optical objective
- 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
- G02B13/00—Optical objectives specially designed for the purposes specified below
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
752,179. Optical objectives. ANGENIEUX, P. Oct. 11, 1954, No. 29226/54. Class 97 (1). In an objective formed of six components, of which the first is convergent, the second a convergent meniscus convex to the front, the third a meniscus convex to the front, the fourth a meniscus convex to the rear and the fifth and sixth biconvex, the radius of the front surfaces of the second component lies between 0.6 F and 2 F, that of the front surface of the first component between 0.45 F and 0.80 F, that of the rear surface of the third component between 0.25 F and 0.45 F, that of the front surface of the fourth component between 0.30 F and 0.55 F and that of the rear surface of the fourth component between 0.45 F and 0.80 F, whilst the axial length of the airspace between the third and fourth components lies between 0.23 F and 0.50 F., F being the focal length of the objective. Numerical data are given for one example of the objective shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2922654A GB752179A (en) | 1954-10-11 | 1954-10-11 | Optical objective having a very large aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2922654A GB752179A (en) | 1954-10-11 | 1954-10-11 | Optical objective having a very large aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB752179A true GB752179A (en) | 1956-07-04 |
Family
ID=10288145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2922654A Expired GB752179A (en) | 1954-10-11 | 1954-10-11 | Optical objective having a very large aperture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB752179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1286776B (en) * | 1968-04-10 | 1969-01-09 | Rodenstock Optik G | Simplified modified Gauss lens |
-
1954
- 1954-10-11 GB GB2922654A patent/GB752179A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1286776B (en) * | 1968-04-10 | 1969-01-09 | Rodenstock Optik G | Simplified modified Gauss lens |
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