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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.

MaterialBK7 or UV fused silica
Focal Length Tolerance±1% @589nm
Design Wavelength589nm
Centration≤3′
Diameter Tolerance+0/-0.1mm
Clear Aperture>central 90%  of  diameter
Center Thickness  Tolerance±0.1mm
Center Thickness2.5mm,nominal
Surface Quality20/10(UVFS)/ 40/20(BK7)
Surface Accuracy≤ 1.5λ power,λ/2 irregularity(UVFS)

≤ 1.5λ power,λ/4 irregularity(BK7)

Chamfers0-0.8mm face width×45°±15°
Part Number  Dimension A(mm)
NPBC-063-λ      6.35
NPBC-127-λ12.7
NPBC-150-λ15.0
NPBC-200-λ20.0
NPBC-254-λ25.4
441.6nm  488-514.5nm  532nm  632.8nm  670nm  
780nm830nm1064nm1300nm1550nm
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