Borosilicate Optically Polished Windows and Plates

UQG (Optics) Ltd.

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UQG Optics Borosilicate windows range includes two main finishes - plate finish or optically polished. We mainly supply Borofloat Borosilicate cut and ground from sheet. This can then be worked into a guaranteed optical polished surface to optical specifications or dimensional tolerances.

Borosilicate has low coefficient of expansion with good resistance to water, acid and Saline Solutions. It has good thermal properties withstanding temperatures over lengthy periods of time.

Other grades and types of Borosilicate materials are supplied including Pyrex and ultra-thin glass Borosilicate glass substrates below 1mm in thickness.

UQG Optics has an extensive range of stock sizes for a quick delivery.

CUSTOM MADE SIZES
Dimensions: Squares/Rectangles 1mm x 1mm to 1150 mm x 850mm
• Diameters: 5mm to 800mm
Thickness: 0.70mm to 15mm (subject to dimension)

CUSTOM RANGE
Diameters: 5mm to 200mm
Squares/Rectangles: 1mm x 1mm to 200mm x 200mm
Thickness: 0.10mm to 15mm thick (subject to dimension)
Edges: As cut/bevelled, ground or polished
Parallelism: Up to 10 seconds
Flatness: Up to Lambda 10

STOCK SIZE RANGE
Diameter: 10mm – 50mm
Squares: 10mm – 50mm
Material: Borosilicate optically polished Borofloat
Dimension Tolerance: +0.00/-0.20mm
Thickness Tolerance: ± 0.10mm
Edges: Fine ground
Surface Quality: 60/40
Flatness: ≤ 5 fringes
Parallelism: ≤ 3 arc mins

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Published: May 2018