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Specifications
,Material:BK72,Centration:
3' 3Surface figure:0.25wavelength
4Surface quality:60/40scratch and dig
Achromatic Lenses consist of two or more elements, usually of crown and flint glass that have been corrected for chromatic aberration with respect to two selected wavelengths.
Our company provides achromatic lenses consisting of two elements. These lenses have considerably reduced not only chromatic aberration bust also spherical aberration and coma aberration. These are designed with respect to three wavelength 480nm, 546.1nm and 643.8nm. They are best used in replacing singlet where improved performance is required.
Material:BK7
Design wavelength:480.0nm,546.1nm,643.8nm
Paraxial focal length:±2%
Dimension tolerance:0/-0.15mm
Thickness Tolerance:±0.2mm
Centration:3 arc min
Surface figure:1/4λ
Surface quality:60—40scratch and dig
Clear aperture:90%
Coating:available upon request
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