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When two flat optical surfaces are in close proximity interference effects associated with residual Fresnel reflection can be seen, these are a special case of Newton’s Rings.  Anti-Newton glass sheets are lightly etched to deform the surface enough to prevent this but with minimal effect on image quality. 

Anti-Newton material is often used in scanners and film enlargers for scanning photography negatives etc without seeing the interference rings (Newton`s rings). Quality anti-Newton glass is available to purchase directly from our website in the sizes listed below.

Knight Optical also offers an extensive custom optic service thanks to our many years of experience in the industry. We are able to supply anti-Newton glass cut to specific shapes and sizes to suit individual applications. For more information on anti-Newton glass and our custom optic service, contact our technical sales team.

Material:
Diameter:
Length/Width:
Surface Quality:
Anti-Newton Glass
+0/-0.25 mm
<100mm ± 0.3 mm ≥100mm ±0.5mm
80/50

Cutting down of stock components to smaller diameters and sizes.
Mounting options.
Larger sheets available for custom shapes and sizes.

9 Items

Name Diameter (mm) Length (mm) Width (mm) Thickness (mm) Material Price Buy
DGN2500 pdf 25 3 Anti-Newton Glass
$18.70
DGN5000 pdf 50 3 Anti-Newton Glass
$22.17
DGN5050 pdf 50 50 3 Anti-Newton Glass
$19.39
DGN9363

pdf

93 63 3 Anti-Newton Glass
$31.21
DGN100100 pdf 100 100 3 Anti-Newton Glass
$38.16
DGN250100 pdf 250 100 3 Anti-Newton Glass
$72.91
DGN305305 pdf 300 300 3 Anti-Newton Glass
$152.83
DGN297210 297 210 3 Anti-Newton Glass
$208.50
DGN7169 69 71 3 Anti-Newton Glass
$104.25

9 Items

1

Anti-Newton Glass

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