Medical device cover glass, microscope slides and cover slips, quartz capillaries and fluorescence filters.
From 0.17 mm cover slips to 2 mm strengthened device covers, cleaned and coated to specification.
Samples are supplied for your own device validation.
Most microscope objectives are corrected for a No. 1.5 cover slip, 0.16–0.19 mm, ideally 0.17 mm. A thicker or thinner slip adds spherical aberration and the image softens, so we sort cover glass to its thickness grade.
Monitors and handheld meters use 0.55 to 2.0 mm aluminosilicate, chemically strengthened to over 650 MPa with a compression layer about 40 µm deep, keeping thin covers above 92% transmission.
Thin borosilicate passes UV-A but blocks 254 nm UV-C at any thickness. Windows for UV-C lamps and UV detection paths are made from fused silica or quartz instead.
In fluorescence work, a shortpass filter such as one passing 340–500 nm removes the longer wavelengths from the excitation source, so they do not leak into the emission signal the camera reads.
Silver-ion surfaces are specified by their R value under ISO 22196. R 2 means 99% fewer bacteria than an untreated sample after 24 hours, R 3 means 99.9%. We quote the value tested, not a general claim.
Device makers validate glass in their own assemblies. We supply samples in 7–15 working days, made on the production route, so test results carry over to the production parts.
Disposable cell counting chamber slides in ultra-clear glass, with 4, 6 or 8 chambers per slide at a depth of 10, 15 or 20 µm. The cover glass carries a coating that draws the sample in by capillary action, prevents bubbles and keeps cells from sticking, for counting by eye under brightfield or in automated counters.
Chemical & Thermal StrengtheningSilkscreen Printing
Anti-Reflection CoatingsOleophobic & Hydrophobic CoatingsGlass CleaningQuality Inspection
Send the drawing or the slide and cover slip spec: glass type, thickness grade, chamber depth, wavelength or coating. We confirm the material and the measurement method for each value before quoting.
Samples are made on the production route and shipped with the measured values, so your validation and assay testing are done on parts that match what production will deliver.
Once samples pass your testing, the material, process and measured values are fixed. Production lots are made and checked to the same values, and changes are agreed with you first.
Device covers cut to outline; slips and small parts diced.
Edges ground smooth, then chemically strengthened where needed.
Multi-stage cleaning before any coating or printing.
AR, oleophobic or antimicrobial layers, then markings.
Appearance checked; dimensions sampled; parts packed clean.
Include the glass type, thickness or grade, size, coating and quantity.
Glass Cutting