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Coating Witness Pieces

Optical coating witness sample test pieces for thin film coating will match your finished product, allowing testing without using the finished part. This can be used for testing transmission to measure reflectivity, temperature, durability, polarization and salt fog tests. Running the sample run and monitoring the future runs. With a wide range of materials for the UV to IR in refractive index’s values range from 1.43nd to 4.00 nd. Normally made to 25mm or 1” (25.40mm dia) in thickness of 1mm to 3mm. Other sizes and thickness can be made to custom specification. Additional test pieces are made as wedged windows in all materials.

Please contact our sales team.

Dimensions: Diameters 5mm to 150mm
Thickness Range: 0.10mm to 50mm
Surface Quality: 80/50 to 20/10 Scratch/Dig ground or diffused
Surface Flatness: Up to lambda 4 (@633nm)
Material Options: Schott & Ohara Optical Glass full range of refractive index's, Silicon, Germanium, Sapphire, Zinc Sulphide Multi-Clear, IR Quartz, Zinc Selenide, B270, Float glass, Fused Quartz, Borosilicate, Fused Silica (standard range available in 25mm dia ex-stock)
Options: Substrates, discs, squares & wedges

Purchase or OEM production quantities?
Ask UQG for a quote we are a major single source supply chain global supplier.

Material:
Ohara Optical Glass & Schott Glass
Dimension Tolerance:
+0.00/-0.10mm
Thickness Tolerance:
±0.10mm
Edge Finish:
Ground & chamfered
Surface Quality:
60/40 Scratch/Dig
Surface Flatness:
1-3 Fringes (@633nm)
Parallelism:
≤ 3 Arc mins

Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities

Currency select:

Part No Data
sheet
Description Dimensions (mm)Ref. IndexThickness (mm) Unit price
(1-10)
Qty
Qty
(10+)Volume pricing available for 10+, please add to quote.
TCM-2515 PDF Monitor Window Ø 251.512 £9.80
QTY
Added. View quote
TCM-2516 PDF Monitor Window Ø 251.602 £9.80
QTY
Added. View quote
TCM-2517 PDF Monitor Window Ø 251.702 £9.80
QTY
Added. View quote
TCM-2518 PDF Monitor Window Ø 251.802 £9.80
QTY
Added. View quote

Part Number

TCM-2515

Monitor Window

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

Ref. Index 1.51

UNIT PRICE (1-50)

£9.80 Inc. VAT

QTY

Part Number

TCM-2516

Monitor Window

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

Ref. Index 1.60

UNIT PRICE (1-50)

£9.80 Inc. VAT

QTY

Part Number

TCM-2517

Monitor Window

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

Ref. Index 1.70

UNIT PRICE (1-50)

£9.80 Inc. VAT

QTY

Part Number

TCM-2518

Monitor Window

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

Ref. Index 1.80

UNIT PRICE (1-50)

£9.80 Inc. VAT

QTY