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BK7
BK7 Optical Glass Substrates
BK7 optical glass (commonly referred to as N-BK7 or optical crown glass) is a high-grade borosilicate crown glass widely recognized as the industry standard for precision visible and near-infrared optical components.
Functions:
Features exceptionally low optical absorption, high bubble/inclusion purity, high internal transmittance across the visible spectrum, and outstanding surface polishability with minimal wavefront distortion.
Applications:
Precision optical viewports
Optical coating substrates
Beam splitters
Camera lenses
Laser mirrors
Industrial instrument windows
#E2000 #B270 #BK7
#SCG #Information and Notes
ITEM NO:0211 (CORNING 0211)
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 0.21mm
Square: 3x3 - 330x360mm
Round: Dia3 - 300mm
Resistant Temperature
350℃
Manufacturer: CORNING
ITEM NO:D263T (SCHOTT D263T)
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 0.21, 0.3, 0.5mm
Square: 3x3 - 330x360mm
Round: Dia3 - 300mm
Resistant Temperature
350℃
Manufacturer: SCHOTT AG
ITEM NO:EXG0.7 (CORNING Eagle XG)
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
EAGLE XG: 0.5, 0.63, 0.7, 1.1mm
Square: 3x3 - 300x400mm
Round: Dia3 - 300mm
Resistant Temperature
450℃
Manufacturer: CORNING
ITEM NO:E2000 (CORNING EAGLE 2000)
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
EAGLE XG: 0.5, 0.63, 0.7, 1.1mm
Square: 3x3 - 300x400mm
Round: Dia3 - 300mm
Resistant Temperature
450℃
Manufacturer: CORNING
ITEM NO:B270 (SCHOTT B270)
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 1.0, 1.1, 1.65, 2.0, 3.0mm
Square: 3x3 - 258x406mm
Round: Dia3 - 200mm
Resistant Temperature
150℃
Manufacturer: SCHOTT AG
ITEM NO:BK7
Spectral Characteristics
Tave>92% @ 380-700nm
Physical Characteristics
Thickness: 0.7~10mm
Square: 3x3 - 100x100mm
Round: Dia3 - 100mm
Resistant Temperature
150℃
ITEM NO:SCG
Spectral Characteristics
Tave>90% @ 400-700nm
Physical Characteristics
Low-iron glass: 3.2, 4.0, 5.0, 6.0mm
Square: 20x20 - 800x800mm
Round: Dia30 - 800mm
Resistant Temperature
150℃
Information and Notes
Information and Technical Notes
1. Premium optical glass offers superior light transmittance compared to standard commercial float glass, manufactured under strict quality control standards to ensure exceptional surface quality and minimal internal bubbles or inclusions.
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. To enhance mechanical strength and thermal shock resistance, please explore our Tempered Glass Solutions.
6. Website specifications are provided for reference only. Final production and delivery comply with mutually agreed engineering specifications.
7. SCHOTT D263T and B270 are registered trademarks of SCHOTT AG.
