what's the achromatic lens
Definition:
lens by two different combinations of materials, use of is to focus on two different colors of light to the same point,Christian Louboutin chaussures Greissimo pompe 85mmvente pas cher, otherwise known as amendments to chromatic aberration. Supplementary description of
[1]: General refers to the three kinds of wavelengths (blue, green,read more, and red) light of the chromatic aberration correcting lens group. Color difference stems from the different wavelengths of light in the glass where the dispersion and refractive index differences,Hogan Scuro Uomo Interactive Scuro, which lead to different wavelengths of light have different focus. With the use of different materials,Mbt Flamme White schwarz Männer Walking-Schuh, such as crown and flint glass lens convergent and divergent lens in the mix, each glass dispersion can be compensated for by another glass, allowing an integrated chromatic aberration to a minimum. 2-type achromatic lens achromatic lens is a structure in the simplest one, it is of two types: double-glued and double-separation type.
Of course,Christian Louboutin simplement Mary 70mm Strass Aurora Boreale cristal PompesLivraison gratuite pour vous, can also be formed by a multi-piece lens,MBT Schuhe Tabia schwarzen Sandalen, which depends on its usage. Relatively large aperture achromatic lens is usually separated type, the assembly in the frame,MBT Sini Schuhe, the overall performance is very excellent. For the separation of pairs of lenses,MBT Habari Sandals WoMänner, the two lenses in the gap actually is equivalent to the third block of lenses,MBT Schuhe Pia auf den Verkauf, mirrors than the glue, it may be better to eliminate chromatic aberration. Therefore,Hogan Uomo Scarpe Nero Hi-Sprint vendita, it can be fairly broad-band within the framework of a balanced aberration in the field of broadband imaging play a role.
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