SU538318A1 - Lens - Google Patents
LensInfo
- Publication number
- SU538318A1 SU538318A1 SU2146417A SU2146417A SU538318A1 SU 538318 A1 SU538318 A1 SU 538318A1 SU 2146417 A SU2146417 A SU 2146417A SU 2146417 A SU2146417 A SU 2146417A SU 538318 A1 SU538318 A1 SU 538318A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- lens
- focal length
- well
- chromatism
- axis
- Prior art date
Links
Description
(54) ОБЪЕКТИВ(54) LENS
которого выполнены линзы 3 и 4, близки по величине и их разность составл ет 0,01 При этом дисперси стекол линзы 3 превышает показатель преломлени линзы 4 в 1,7 раза.which lenses 3 and 4 are made of, are close in size and their difference is 0.01. In this case, the dispersion of the glasses of lens 3 exceeds the refractive index of lens 4 by 1.7 times.
Рассчитанный вариант объектива имеет фокусное рассто ние 120 мм, относительное отверстие 1:4 и поле зрени 8 .The calculated lens version has a focal length of 120 mm, a relative aperture of 1: 4 and a field of view of 8.
Конструкци первого компонента, а также выбор соответствующих сортов стекла, позволили хорошо исправить в объективе хроматические аберрации. В интервале длины волн от Р до С кружок рассе ни дл точки на оси 0,018 мм. Хроматизм положени дл крайних лучей 0,О11 мм. Дл точки вне оси хроматизм увеличени не превосходит 0,005 мм при астигматизме 0,6 7 мм.The design of the first component, as well as the choice of the appropriate types of glass, made it possible to correct chromatic aberrations in the lens well. In the range of wavelengths from P to C, the circle is for a point on the axis of 0.018 mm. Chromatism of position for extreme rays 0, O11 mm. At the off-axis point, the increase chromatism does not exceed 0.005 mm, with astigmatism being 0.6 7 mm.
С использованием предлолсенного объектива разработана зрительна труба с переменным фокусным рассто нием с диапазоном увеличени от 5 до 20 .Using a pre-lens, a telescope with a variable focal length with a magnification range of 5 to 20 has been developed.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2146417A SU538318A1 (en) | 1975-06-18 | 1975-06-18 | Lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2146417A SU538318A1 (en) | 1975-06-18 | 1975-06-18 | Lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU538318A1 true SU538318A1 (en) | 1976-12-05 |
Family
ID=20623419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2146417A SU538318A1 (en) | 1975-06-18 | 1975-06-18 | Lens |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU538318A1 (en) |
-
1975
- 1975-06-18 SU SU2146417A patent/SU538318A1/en active
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