Double Concave Lenses

Optola offers wide range of double concave lenses.


Custom design double concave lenses are available upon request.


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You can specify desired parameters during checkout.

Material BK7 or UV fused silica
Focal Length Tolerance ±1% @589nm
Design Wavelength 589nm
Centration ≤3′
Diameter Tolerance +0/-0.1mm
Clear Aperture >central 90%  of  diameter
Center Thickness  Tolerance ±0.1mm
Center Thickness 2.5mm,nominal
Surface Quality 20/10(UVFS)/ 40/20(BK7)
Surface Accuracy ≤ 1.5λ power,λ/2 irregularity(UVFS)

≤ 1.5λ power,λ/4 irregularity(BK7)

Chamfers 0-0.8mm face width×45°±15°
Part Number   Dimension A(mm)
NPBC-063-λ       6.35
NPBC-127-λ 12.7
NPBC-150-λ 15.0
NPBC-200-λ 20.0
NPBC-254-λ 25.4
441.6nm   488-514.5nm   532nm   632.8nm   670nm  
780nm 830nm 1064nm 1300nm 1550nm
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