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Location: Main > Optical Lenses > Cylindrical Lens Meniscus Lens > POL-MNC-P25.4-113-1570
Name: DIA25.4mm Meniscus Lens(DAR1510-1620nm) f+113mm
P/N: POL-MNC-P25.4-113-1570
Keywords:Dia25.4mm,BK7,Miniscus,EFL+113mm,AR1510-1620nm
Unit Price: S$95.00/pc
Available: In stock
Request: Add to Request List
Introduction:
Meniscus lenses are convex-concave lenses. They have one outward curved face and one inward-curved face. If the outward curve is sharper than the inward curve, the lens has a positive focal length and acts as a magnifier.

If the inward curve is sharper than the outward curve, the lens has a negative focal length and acts as a reducing lens.

Substrate Material:
Schott N-BK7 optical glass
Wavelength Range:
350 - 2000nm
Design Wavelength:
1570nm(convex-concave, spherical - meniscus type)
Outer Diameter(OD):
25.4,-0.10/-0.05mm
Center Thickness(CT):
4.00,+/-0.05mm
Edge Thickness(ET):
-
Radius of Curvature(R1)
40.70,+/-0.05mm (convex)
Radius of Curvature(R2)
140.8,+/-0.05mm(concave)
Effective Focal Length(EFL):
+113.0mm designed @ 1570nm
Back Focal Length(BFL):
+109.0mm
Surface Quality:
40/20 scratch and dig
Surface Figure:
< lambda/4 @ 633nm inspected (over clear aperture)
Clear Aperture:
>90%
Centration:
<0.05mm
Coating:
AR coated @1510 -1620nm, R<0.25%, 0-deg AOI (double surfaces)
Bevel:
0.20mm, 40-50 degrees