Knight Optical (UK) Ltd Flat 1 side-Lambda/10


	> Lenses

	> Filters

	> Diffusers

	> Windows

	> Optical Flats

	> Mirrors

	> Beamsplitters

	> Prisms

	> Polarisers

	> Retarders

	> Gratings/ Graticules and Apertures


	> Latest News

	> Useful Links

	> Mailing List

	> Add to Favourites

	> Email a friend

	> Terms & Conditions

01622 859444

Optical Flats

These high quality flat substrates are made from tree types of material, Zerodur, fused silica and LEGB. These Optical Flats can be used for interferometry i.e. checking the flatness of other surfaces from interference fringes (Newton's rings) which are seen when the surfaces are in contact, in monochromatic light. They can be used for high quality laser mirrors.

Knight Optical > Optical Flats > Zerodur type > Flat 1 side-Lambda/10

Only UK and EU customers are charged VAT at 17.5%, customers outside the EU and EU customers based outside the UK who have a valid EU VAT number will not be charged VAT

Bulk Discounts! Where (B) appears next to a price below, bulk prices are available, click the (B) button to view!

Part No.	Material	Diameter (mm)	Thickness (mm)	Price
TYZ1900	Zerodur	19.05	3	£0.00
TYZ2500	Zerodur	25	6	£0.00
TYZ2600	Zerodur	25.4	6	£0.00
TYZ3800	Zerodur	38.1	9	£0.00
TYZ4000	Zerodur	40	9	£0.00
TYZ5000	Zerodur	50	9	£0.00
TYZ5100	Zerodur	50.8	9	£0.00
TYZ6300	Zerodur	63	12	£0.00
TYZ7500	Zerodur	70	12	£0.00
TYZ10000	Zerodur	100	15	£0.00
TYZ10100	Zerodur	101.6	15	£0.00
TYZ12500	Zerodur	125	20	£0.00
TYZ15000	Zerodur	150	25	£0.00
TYZ20000	Zerodur	200	30	£0.00
TYZ25000	Zerodur	250	40	£0.00
TYZ30000	Zerodur	300	50	£0.00

Knight Optical > Optical Flats > Zerodur type > Flat 1 side-Lambda/10

Specification
Material:	Zerodur, Fused silica, LEGB
Material Data :	(see materials section)
Dimensional:	+0.0/-0.2 mm
Thickness:	+0.0/-0.2 mm
Scratch/dig	10:5
Surface finish:	<5 angstrom off pitch
Flatness face 1:	λ/10 & over 95%
Flatness face 2:	Commercial polish
Parallelism:	<1 arcmin (or better if required)

Specific requirements
We can manufacture Optical Flats to any size at short notice, so if your requirements are not listed please contact us by telephone / fax or email: stockrequirement@knightoptical.co.uk

Options available
. Special Mirror and other coatings
. Other sizes i.e. squares, rectangles, and other diameters at short notice
. Other grades of flatness i.e. <l/20
. Flat polishing of second face

Technical Data Sheets
Are available for each filter (see materials section)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knight Optical (UK) Ltd
Templetree House, Sandway Road, Harrietsham, Kent ME17 1HT. United Kingdom.
Phone: +44 (0)1622 859444 Fax: +44 (0)1622 859555
e-mail: info@knightoptical.co.uk Web design by Smart ePos