Request for Quotation
48-hour express service
D 263 T is a nearly colorless flat borosilicate thin glass made by SCHOTT. The specific properties and an extensive range of standard thicknesses make D 263 T specialty glass ideal for many technical glass applications. Due to the very smooth fire-polished surfaces, D 263 T glass does not require an additional mechanical polishing treatment. D 263 T exceeds the surface quality grade, smoothness, and flatness of most commercial polishing processes. The micro-roughness of the glass surfaces is typically less than 1 nm (RMS).
Measured against optical standards that apply to thicker glass, the possible flatness of ultra-thin glass is limited for technical and physical reasons. The natural weight alone is a limiting factor for the possible flatness of ultra-thin glass. Nevertheless, even low glass thicknesses offer excellent flatness and optical surface quality that mechanically polished thin glass can hardly outperform.
SCHOTT produces D 263 T borosilicate thin glass by melting the purest raw materials. The specialty glass is resistant to chemical attack and offers a high uniform optical transmittance in the visible range. Moreover, D 263 T glass offers higher infrared transmission than most other thin glass materials (you can obtain IR transmittance curves on request).
D 263 glass is a perfect choice for display technology, but it is also an ideal substrate for optics, micro-optics, and glass wafer applications. It is often the best glass material for microscope slides and thin or ultra-thin coverslips with high optical quality in research and science.
The glass is nearly always available from us in various extremely thin thicknesses with very low tolerances. Our 48–hour express-service capabilities are also available for this material.
To receive a quote for windows, substrates, or wafer components of original SCHOTT D 263 T or D 263 T eco* borosilicate glass with individual dimensions, please click the button below or select a thickness from the table.
*The D263 T eco materials have been made by SCHOTT using eco-friendly refining agents.
Transmission at 0,15 mm thickness
Enlarge the curve to show details
Transmission at 0,7 mm thickness
Enlarge the curve to show details
UV-Transmission at 0,7 mm thickness
Enlarge the curve to show details
Thickness (mm) |
Tolerance |
![]() |
---|---|---|
0,030 | ±0,008 | — |
0,050 | ±0,010 | — |
0,070* | ±0,010 | — |
0,100 | ±0,015 | ✔ |
0,145 | ±0,015 | ✔ |
0,175 | ±0,015 | ✔ |
0,210 | ±0,020 | ✔ |
0,300 | ±0,020 | ✔ |
0,400 | ±0,020 | ✔ |
0,500* | ±0,050 | — |
0,550 | ±0,050 | ✔ |
0,550 | ±0,015 | ✔ |
0,700 | ±0,050 | ✔ |
0,900* | ±0,050 | — |
1,100 | ±0,050 | ✔ |
1,100 | ±0,030 | ✔ |
The thicknesses marked with "✔" are also available within 48–hour express service. | ||
*These glass thicknesses are currently not produced. Please send us your inquiry in case of need. |
Refractive index numbers |
||
---|---|---|
Designation |
Wavelength (nm) |
Refractive Index |
ng |
436 |
1,5354 |
nF' |
480 |
1,5305 |
nF |
486 |
1,5300 |
ne |
546 |
1,5255 |
nd |
587,5 |
1,5231 |
nD |
589,3 |
1,5230 |
nC' |
644 |
1,5209 |
nC |
656 |
1,5204 |
Dielectric Constant (permittivity) εr |
||||||
---|---|---|---|---|---|---|
Frequency in GHz | 0,001 |
1,0 |
2,0 |
5,0 |
24 |
77 |
6,7 |
6,4 |
6,4 |
6,3 |
6,3 |
6,1 |
Loss Tangent tan(δ) x 10-4 |
||||||
---|---|---|---|---|---|---|
Frequency in GHz | 0,001 |
1,0 |
2,0 |
5,0 |
24 |
77 |
61 |
74 |
81 |
101 |
210 |
240 |
Other materials from SCHOTT in our extensive delivery program are AF 32 eco, AS 87 eco, B 270 Superwite, BK7, and BOROFLOAT® 33. For further technical information, please feel free to contact us.
© 1994 – 2023 Präzisions Glas & Optik GmbH
Last update 15.09.2022