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Knight Optical(UK) Ltd - [email protected] - +44 (0)1622 859444

Flashed opal diffusers

What are you looking for in Stock?

Flashed opal offers a more thorough diffusion with a distribution close to Lambertian, with the brightness of the diffuser being independent of the viewing angle.

Such wide scattering angles will inevitably reduce brightness, however Opal diffusers can be very useful in light boxes and other illumination systems.

Note: Flashed opal diffuser material has been discontinued by the manufacturer. Knight Optical still hold limited stock parts available for purchase. Please contact our sales team for more information.


Material: White-flashed opal
Diameter: +0.0 / -0.25 mm
Length / width: ± 0.25 mm
Material thickness: ± 0.20 mm (+0.2/-0.5mm 6mmthk)
Opal layer thickness: 0.45mm +0.35mm/-0.2mm
Surface quality: <60-40 scratch-dig


  • Cutting down of stock components to smaller diameters and sizes.
  • Mounting options.
  • Larger sheets available for custom shapes and sizes.
  • The opal layer can be polished down at short notice.

Stock Optics

Get a Custom Quote

Part No. Diameter
Material Price
DFO10000 Download 1003Flashed Opal £41.40
DFO100100 Download 1001003Flashed Opal £34.50
DFO15000 Download 1503Flashed Opal £49.25
DFO2500 Download 253Flashed Opal £16.95
DFO2525 Download 25253Flashed Opal £10.95
DFO4000 Download 403Flashed Opal £18.45
DFO4040 Download 40403Flashed Opal £14.50
DFO5000 Download 503Flashed Opal £19.95
DFO5050 Download 50503Flashed Opal £16.50
DFO5051 Download 50506Flashed Opal £24.95
DFO1200 122Flashed Opal £7.00

Get a Custom Quote

Get in touch

Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

International Shipping

We are able to ship to most countries at good rates, please click here for more info.

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