Step Windows
UQG Optics step windows are either windows or plates ground with a step into the edge or length of the glass. This step can allow for rings or sealant, useful for sealing into housing or mechanical assembly. The step windows are made from a wide range of materials including BK7, Fused Quartz, Borosilicate and Sapphire. In fact all materials can be engineered in this way subject to thickness. Additional bevels can be ground to the step for assembly and handling. Angles can also be produced to create angled cones or an angled ground step.
UQG stock step windows to various designs and can custom make them to additional shapes with AR coatings.
Please contact our sales team.
View RoHS Statement
| Dimensions: | Diameters 10mm to 200mm |
| Squares/rectangles 20mm x 20mm to 200mm x 200mm | |
| Thickness Range: | 1.50mm to 20mm thick |
| Surface Quality: | 80/50 to 20/10 scratch/dig |
| Surface Flatness: | Up to lambda 4 (@633nm) |
| Material Options: | Optical glasses, Fused Silica, Fused Quartz, Borosilicate, Germanium, Silicon & Sapphire |
| Coating Options: | AR optical coatings |
| Options: | Angled bevels, chamfers & faces drilled |
Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities
Select Your Currency:
| Part No | Data sheet |
Description | Dimensions (mm) | Thickness (mm) | Unit price (1-10) excl. VAT |
Qty |
Qty (10+)Volume pricing available for 10+, please add to quote. |
|---|---|---|---|---|---|---|---|
| STW-1512 | Fused Quartz Step Window (Click to view drawing) | Ø15 x Ø12 | 9 | £36.00 | |||
| STW-18165 | Borosilicate Step Window (Click to view drawing) | Ø18 x Ø16.50 | 4.80 | £36.00 | |||
| STW-18515 | UV Fused Silica Step Window (Click to view drawing) | Ø18.50 x Ø15 | 3 | £42.00 | |||
| STW-2118 | Borosilicate Step Window (Click to view drawing) | Ø21 x Ø18.05 | 9.70 | £39.00 | |||
| STW-25195 | Sapphire Step Window (Click here to view drawing) | Ø25 x Ø19 | 3 | £69.00 | |||
| STW-31281 | Borosilicate Step Window (Click here to view drawing) | Ø31 x Ø28.10 | 10.80 | £48.00 | |||
| STW-4638 | Borosilicate Step Window (Click here to view drawing) | Ø46 x Ø38 | 9 | £52.00 | |||
| STW-55335 | Float Glass Step Window - Rectangle (Click here to view drawing) | Ø55 x Ø33.50 | 6 | £32.00 | |||
| STW-5542 | Float Glass Step Window (Click here to view drawing) | Ø55 x Ø42 | 6 | £29.00 |
Part Number
STW-1512
Fused Quartz Step Window (Click to view drawing)
PDF Data sheet
Thickness (mm) 9
Dimensions (mm) Ø15 x Ø12
UNIT PRICE (1-10)
£36.00 Inc. VAT
Part Number
STW-18165
Borosilicate Step Window (Click to view drawing)
PDF Data sheet
Thickness (mm) 4.80
Dimensions (mm) Ø18 x Ø16.50
UNIT PRICE (1-10)
£36.00 Inc. VAT
Part Number
STW-18515
UV Fused Silica Step Window (Click to view drawing)
PDF Data sheet
Thickness (mm) 3
Dimensions (mm) Ø18.50 x Ø15
UNIT PRICE (1-10)
£42.00 Inc. VAT
Part Number
STW-2118
Borosilicate Step Window (Click to view drawing)
PDF Data sheet
Thickness (mm) 9.70
Dimensions (mm) Ø21 x Ø18.05
UNIT PRICE (1-10)
£39.00 Inc. VAT
Part Number
STW-25195
Sapphire Step Window (Click here to view drawing)
PDF Data sheet
Thickness (mm) 3
Dimensions (mm) Ø25 x Ø19
UNIT PRICE (1-10)
£69.00 Inc. VAT
Part Number
STW-31281
Borosilicate Step Window (Click here to view drawing)
PDF Data sheet
Thickness (mm) 10.80
Dimensions (mm) Ø31 x Ø28.10
UNIT PRICE (1-10)
£48.00 Inc. VAT
Part Number
STW-4638
Borosilicate Step Window (Click here to view drawing)
PDF Data sheet
Thickness (mm) 9
Dimensions (mm) Ø46 x Ø38
UNIT PRICE (1-10)
£52.00 Inc. VAT
Part Number
STW-55335
Float Glass Step Window – Rectangle (Click here to view drawing)
PDF Data sheet
Thickness (mm) 6
Dimensions (mm) Ø55 x Ø33.50
UNIT PRICE (1-10)
£32.00 Inc. VAT
Part Number
STW-5542
Float Glass Step Window (Click here to view drawing)
PDF Data sheet
Thickness (mm) 6
Dimensions (mm) Ø55 x Ø42
UNIT PRICE (1-10)
£29.00 Inc. VAT
