Contact details

Island Optics Limited

2 Ackerman Court

Balthane Industrial Park

Ballasalla;   Isle of Man


United Kingdom

Call us

Tel: +44 (0) 1624 829435

Sales office email:

Gary Thomas email:


You can also use our contact form.

Ask for a quote


Check out our latest news on our website.

Island Optics Limited
Island Optics Limited

Optical Flat Price list

Below is our standard range of Fused Silica Optical Flats in sizes from 25mm up to 300mm Diameter. Surface flatness is quoted for each item. The prices are for Double Sided Optical Flats although we can offer a full range of single sided and even square or rectangular if required.

Dia Inch's Dia MM Flatness Price    
1 25 Lambda/8 £     Please Ask    
2 50 Lambda/8 £     Please Ask    
3 75 Lambda/8 £     Please Ask    
4 100 Lambda/8 £     Please Ask    
5 125 Lambda/8 £     Please Ask    
6 150 Lambda/8 £     Please Ask    
8 200 Lambda/8 £     Please Ask    
10 250 Lambda/8 £     Please Ask    
12 300 Lambda/8 £     Please Ask    

All Optical Flats are manufactured at our facility from Fused Silica and supplied boxed complete with a certificate of flatness, calibrated on our 12 inch interferometer and traceable to NIST.


We carry stock of most sizes and delivery following cleared funds is by Royal mail next day service.


We can manufacture in Zerodur or other materials. Larger sizes can be manufactured but would be on an individual quote basis.


We offer a full re-calibration and refurbishment service, please ask for details.


Please contact email: or phone: 44(0)1624 829435

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