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Диаметр 25,40 мм ФЛ 250 мм SF5 SFL6 Ахроматическая двойная линза 650-1050 нм с антиотражающим покрытием

Code: 1113-131

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Specifications:

Lens FormAchromatic Doublet LensMaterials SF5/SFL6
Diameters(mm) 25.40(+0.0/-0.1) Effective Focal Length EFL(mm) 250±1%
Back Focal Length BFL(mm) 237.5 Coating650-1050nm AR Coating
Surface Quality(S/D)60/40Irregularity@632.8nmλ/2
Centration≤3 arc minCenter Thickness 5.5±0.2
Edge Thickness(mm) 4.7±0.2 Clear Aperture>90%

Dia25.40mm EFL250mm SF5 SFL6 Achromatic Doublet Lens 650-1050nm AR Coating, Code: 1113-131

An Achromatic Doublet Lens is an optical lens component consisting of one lens made from crown glass of positive, minor refractive index and one lens made from flint glass of negative, greater refractive index cemented together. The purpose of an achromatic doublet lens is to mitigate chromatic aberration and stabilize the shift of focal lengths between designed wavelengths. 

Hangzhou Shalom EO provides off-the-shelf achromatic doublet lenses with a sufficing selection of focal lengths (positive 7.5mm to 1000mm, negative -100mm to - 20mm) and standardized diameters that are compatible with most optic sets. Three options of anti- reflection coatings from visible to infrared wavelength range are accessible: 350-650nm, 650- 1050nm, and 1050-1580nm. 

SF5/SFL6
25.40мм
5.5мм
4.7мм
250мм
λ/2
650-1050нм антирефлексионное покрытие
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