Acromatic doublets are cemented achromats consisting of two different lenses: Positive low dispersion crown glass and negative high dispersion flint glass.
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Multi-element Lenses
An economical achromat for general use, suitable for an optical system that does not require high surface quality imaging, such as a microscope or telescope objective.
By combining two lenses with different wavelength dispersion and refractive index, the resulting component provides lower spherical aberration and chromatic aberration than a single spherical lens.
A cylindrical achromat is a single component made by joining two cylindrical surface lenses with different refractive indices.
These reflective microscope objectives are optimized for chromatic aberration over a bandwidth of 350 nm to 7 µm.
With their long acting infinity correction function, these objectives can be used for a laser system and coaxial observation.
With these objectives, the user can focus a visible laser or microscopic observation of objects from a distance.
With its long working distance and field curvature correction, a natural observation image is achieved to the periphery of the field of view.
With its long working infinity correction function, this objective can be used for a laser system and coaxial observation. It is also used for near UV light observation.
These are infinity corrected objectives with high NA for laser processing.
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