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Biconvex lenses are a good quality simple form of lens; typically both faces are convex and spherical. UV grade fused silica biconvex lenses are widely used for moderate quality imaging and also for focussing and control of laser beams in UV applications. Generally biconvex lenses have the same radius of curvature on both spherical surfaces. 

Our stock range of quality grade UV Grade Fused Silica lenses are available uncoated or AR coated for ultra-violet applications from 248-400nm although the lens can work down at 185nm through to NIR applications at 2000nm. Knight optical also offers custom biconvex lenses to meet your requirements or alternatively edge stock lenses for a quick turnaround.

Centring Accuracy:
Focal Length (@ 587nm):

Centre Thickness:
Edge Thickness:
Surface Quality:

UV grade fused silica
+0.0 /-0.10mm
5 arcmin
± 0.2mm (< 10mm)
± 2.0% (10mm - 1000mm)
± 5.0% (> 1000mm)
± 0.2mm
± 0.2mm
<40-20 scratch/dig
UV synthetic fused silica Lenses with suffix "AU1" are coated on both faces with:
multilayer antireflective coating @248-400nm 

Stock lenses can be edged to smaller diameters.
Stock lenses can be ground to rectangular and square shaped apertures.
Mounting into lens cells.
Special anti-reflective coatings for UV and NIR  

UV synthetic fused silica Lenses with suffix "AU1" are coated on both faces with:
multilayer antireflective coating @248-400nm

14 Items

Name Coating Focal Length (mm) Diameter (mm) Material Price Buy
LXS0806 Uncoated 8.0 6.0 UVFS
LXS0165 AR Coated 340-700nm 9.0 6.0 UVFS
LXS1010 Uncoated 10.0 10.0 UVFS
LXS0166 AR Coated 340-700nm 12.7 12.7 UVFS
LXS1513 Uncoated 15.0 12.5 UVFS
LXS2512 Uncoated 25.0 12.5 UVFS
LXS2525 Uncoated 25.0 25.0 UVFS
LXS3050 Uncoated 38 22.5 UVFS
LXS5012 Uncoated 50.0 12.5 UVFS
LXS5026 Uncoated 50.0 25.0 UVFS
LXS7512 Uncoated 75.0 12.5 UVFS
LXS7526 Uncoated 75.0 25.0 UVFS
LXS10012 Uncoated 100.0 12.5 UVFS
LXS10026 Uncoated 100.0 25.0 UVFS

14 Items


UVFS Biconvex Lenses

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