Precision Optics Lens Plano-Concave Lens

Precision Optics Lens Plano-Concave Lens
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Precision Optics Plano-Concave Lens

Plano-concave, a collimated light beam passing through the lens is spread, then we called it as a negative
or diverging lens. The beam after passing through the lens, appears to emanate from a particular point on
the axis in front of the lens. The distance from this point to the lens is the focal length. The reason we
called negative based on the comparison between the plano-convex positive lens. PHYO OPTICS supply plano-
concave lens in material of N-BK7,Fused Silica,CaF2,SF11,H-BaK4,H-BaK7,etc, also coating as requested.

Specifications

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

$89.00

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