Achromatic doublet lenses("achromat") are designed to eliminate chromatic and spherical aberrations inherent in singlet lenses. When used on-axis, an achromatic lens focuses an parallel input beam to a perfect "point", limited only by the effects of diffraction. This performance can be achieved over a broadband of wavelength. Achromatic lenses can be used to collimate and focus laser beams. They can also be used for high-quality imaging on-axis. However, the off-axis performance is significantly worse than the on-axis performance. If your application requires good optical performance off-axis as well as on-axis, multi-element lenses such as our digital imaging lenses are recommended.
4mm to 550mm
+0,-0.1mm (+0,-0.15mm for diameter>75mm)
Focal length tolerance
+/-1% (+/-5% for 400 series)
Center thickness tolerance
3 arc min
ARCoatings are on request.
Realpoo also can offer other optical lenses,such as plano convex lenses,plano concave lenses,double convex lenses,double concave lenses,meniscus lenses,ball lenses,rod lenses,cylinderical lenses.
The coating machine and toolings
The testing room and machine
The protective packing
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