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SCHOTT
SCHOTT Optical Glass Substrates
SCHOTT optical glass substrates (including high-performance SCHOTT D263T eco, B270, and BOROFLOAT 33) are world-class borosilicate and crown optical glasses renowned for exceptional purity, superior surface flatness, and outstanding thermal stability.
Functions:
Delivers high broadband light transmittance up to 92%, extremely low optical absorption, and superior thermal resistance capable of enduring continuous operating temperatures above 450°C without optical distortion or degradation.
Applications:
Semiconductor optics
Optical projector modules
CMOS/CCD sensor packaging
Precision instrument viewports
High-wattage lighting protective covers
High-temperature optical coating substrates.
#Borofloat 3.3 #D263T 0.3 #D263T 0.5
#B270 1.1 #B270 2.0 #B270 3.0
#Infomation and Notes
ITEM NO:Borofloat1.1
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 1.1mm
Square: 3x3 - 1150x850mm
Round: Dia3 - 300mm
Resistant Temperature
450℃
ITEM NO:Borofloat2.0
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 2.0mm
Square: 3x3 - 300x300mm
Round: Dia3 - 300mm
Resistant Temperature
450℃
ITEM NO:Borofloat2.75
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 1.1mm
Square: 3x3 - 1150x850mm
Round: Dia3 - 300mm
Resistant Temperature
450℃
ITEM NO:Borofloat3.3
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 3.3mm
Square: 3x3 - 300x400mm
Round: Dia3 - 300mm
Resistant Temperature
450℃
ITEM NO:D263T
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 0.21, 0.3mm
Square: 3x3 - 330x360mm
Round: Dia3 - 300mm
Resistant Temperature
350℃
ITEM NO:D263T-0.5
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 0.5mm
Square: 3x3 - 330x360mm
Round: Dia3 - 300mm
Resistant Temperature
350℃
ITEM NO:B270-1.1
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 1.1mm
Square: 3x3 - 258x406mm
Round: Dia3 - 200mm
Resistant Temperature
150℃
ITEM NO:B270-2.0
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 2.0mm
Square: 3x3 - 258x406mm
Round: Dia3 - 200mm
Resistant Temperature
150℃
ITEM NO:B270-3.0
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 3.0mm
Square: 3x3 - 258x406mm
Round: Dia3 - 200mm
Resistant Temperature
150℃
Information and Notes
1. SCHOTT BOROFLOAT 33 offers higher light transmittance than standard commercial float glass. Due to its exceptionally low coefficient of thermal expansion (CTE), it features superior thermal shock resistance and withstands continuous operating temperatures from 450°C to 500°C.
2. Custom geometrical profiles, non-standard thicknesses, CNC edge grinding, and precision drilling are available to meet OEM integration requirements.
3. Spectral transmittance curves represent measurements at normal incidence (0° angle of incidence). Non-transmitted light within the spectrum is absorbed by the physical optical properties of the glass substrate.
4. For applications requiring maximized light throughput, please refer to our Anti-Reflective (AR) Coating Solutions.
5. Maximum safe operating temperature indicates the maximum thermal gradient the substrate can withstand without structural failure caused by localized uneven heating. Operating temperatures may be higher under uniform thermal distribution or slow temperature transition rates.
6. Website specifications are provided for reference only. Final production and delivery comply with mutually agreed engineering specifications.
7. B270, D263T, and BOROFLOAT 33 are registered trademarks of SCHOTT AG.
