Customized Optical System Lenses Telescope Lens Binocular Lens Optical Lenses

Product Description

Achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. The most common type of achromat is the achromatic doublet, which is composed of two individual lenses made from different optical glasses with different refraction value. Typically, one negative lens with high dispersion material glued together with a positive lens with a lower dispersion material. Such as F2 negative lens glued with a BK7 positive lens to create an achromatic.
PHYO OPTICS still supply the apochromatic lens, which has better correction of chromatic and spherical aberration than the common achromat lens.

Specification	Commercial	High Precision
Material	As Required Schott,CDGM.etc.	As required Schott, CDGM,etc.
Diameter Tolerance	+0.00/-0.20mm	+0.00/-0.05mm
Focual Length Tolerance	Typical +/-5%@633nm	Typical +/-2% @633nm
Centration	Typical <3arcmin	Typical <3arcmin
Surface Flatness@632.8nm	L/4	L/8
Surface Quality	80-50	40-20
Bevel	0.2-0.5	0.05-0.2
Coating	As required, with paint, Protection coating, high precision

PHYO OPTICS Production Material Choosing _____________________________________________________________________________________ Surface finishing high precision Polishing and Coating ________________________________________________________________________________________ Thin film Coating and design _________________________________________________________________________________________ Assembly _________________________________________________________________________________________ Packing for Delivery __________________________________________________________________________________________

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