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Optical and Technical Glass Materials

Precision Glass Materials for Optical, Thermal and Electronic Applications

Compare named grades and material families using official properties, then confirm the supply form, machining route and finished-component requirements separately.

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Material Categories

Choose an Optical or Technical Glass Family

Eight material categories separate thermal, optical, spectral, substrate, low-expansion and infrared selection requirements.

BO

Borosilicate Glass Materials

BOROFLOAT 33, PYREX SG3.3 and borosilicate 3.3 for heat-resistant windows, wafers, sight glass, covers and laboratory components.

Explore category → FU

Fused Silica & Quartz Glass

JGS1/JGS2/JGS3, HPFS, Suprasil and fused quartz for UV optics, laser windows, semiconductor parts and high-temperature components.

Explore category → OP

Optical Crown & Flint Glass

N-BK7, K9/H-K9L, N-BAK4, N-F2 and N-SF grades for windows, prisms, imaging systems and refractive optical components.

Explore category → CO

Colored Filter Glass

UV, visible, IR, heat-absorbing and neutral-density filter glass for cameras, sensors, lighting and analytical systems.

Explore category → AL

Aluminosilicate & Alkali-Free Glass

EAGLE XG, display substrate glass and strengthen-able aluminosilicate glass for sensors, MEMS, electronics and protective covers.

Explore category → LO

Low-Iron & Soda-Lime Glass

B 270, low-iron and clear technical glass for instrument windows, display covers, scanners, lighting and coated substrates.

Explore category → LO

Low-Expansion Glass & Glass-Ceramics

ZERODUR, ULE and MACOR for mirror substrates, metrology, lithography, precision structures and thermally stable components.

Explore category → IN

Infrared & Specialty Optical Materials

Sapphire, germanium, ZnSe, CaF2 and chalcogenide materials for UV, laser, MWIR/LWIR and wear-resistant optical windows.

Explore category →

Popular Brands and Grades

Compare Frequently Specified Glass Materials

Open a material page for grade data, history, applications, alternatives, products and ANTGLASS processing options.

SCHOTT BOROFLOAT® 33 Glass BOROFLOAT 33 borosilicate float glass supply and precision processing for optical, thermal, laboratory and industrial components, subject to grade and drawing review. View details → Fused Silica Glass Fused Silica Glass supplied and processed by ANTGLASS for uv windows, laser optics, semiconductor parts, lamps. Compare source-linked properties, available f… View details → SCHOTT N-BK7 Optical Glass SCHOTT N-BK7 Optical Glass supplied and processed by ANTGLASS for lenses, prisms, beam splitters, imaging windows. Compare source-linked properties, availabl… View details → SCHOTT Colored Filter Glass SCHOTT Colored Filter Glass supplied and processed by ANTGLASS for imaging, fluorescence, detector balancing, ir suppression. Compare source-linked propertie… View details → Corning EAGLE XG® Glass Corning EAGLE XG alkali-free aluminosilicate glass supply and processing for substrates, cover components, sensors and electronic applications. View details → SCHOTT B 270 Glass SCHOTT B 270 Glass supplied and processed by ANTGLASS for display covers, instrument windows, lighting, microscopy. Compare source-linked properties, availab… View details → SCHOTT ZERODUR Glass-Ceramic SCHOTT ZERODUR Glass-Ceramic supplied and processed by ANTGLASS for telescope mirrors, metrology, stages, lithography. Compare source-linked properties, avai… View details → Germanium Optical Material Germanium Optical Material supplied and processed by ANTGLASS for lwir thermal imaging, night vision, spectroscopy, detector windows. Compare source-linked p… View details →

Glass Material Comparison

Compare Optical, Thermal and Application Data

Representative grade data helps buyers distinguish borosilicate, fused silica, crown glass, substrate glass, low-expansion materials and infrared materials.

MaterialMaterial typeOptical dataThermal dataTypical applicationsChoose this material when
SCHOTT BOROFLOAT 33 Borosilicate float glass nd 1.47140; visible transmission typically above 90% at suitable thickness CTE 3.25 × 10⁻⁶/K (20–300°C); Tg 525°C Sight glass, industrial windows, substrates, heaters and laboratory equipment Choose for flat, heat-resistant technical glass parts with good chemical stability.
Corning PYREX SG3.3 Borosilicate glass matched closely to silicon Refractive index about 1.472 at 590 nm; over 90% transmission from 400–800 nm CTE 3.3 × 10⁻⁶/K to 300°C Glass wafers, semiconductor packaging, sensors and laboratory parts Choose for thin wafers, panels and silicon-compatible borosilicate applications.
Fused Silica High-purity silica glass Broad UV-to-NIR transmission; nd around 1.4585 for representative grades CTE around 0.5–0.6 × 10⁻⁶/K Laser windows, UV optics, wafers, semiconductor parts and precision substrates Choose for low expansion, UV performance, thermal stability and high-temperature service.
SCHOTT N-BK7 Boron crown optical glass nd 1.51680; vd 64.17 CTE 7.1 × 10⁻⁶/K; Tg 557°C Optical windows, prisms, lenses, beam splitters and machine vision Choose as a versatile visible and near-infrared optical glass with low dispersion.
K9 / H-K9L Chinese crown optical glass nd 1.51680; vd 64.20 CTE 7.6 × 10⁻⁶/K (-30–70°C) and 9.5 × 10⁻⁶/K (100–300°C) Windows, prisms, imaging optics and general optical components Choose for cost-effective crown-glass components with properties close to N-BK7.
SCHOTT N-SF11 Dense flint optical glass nd 1.78472; vd 25.68 CTE 8.5 × 10⁻⁶/K; Tg 592°C High-index lenses, prisms and compact refractive optical systems Choose when high refractive index and strong dispersion are required.
Corning EAGLE XG Alkaline-earth boro-aluminosilicate display glass Refractive index 1.510 at 589.3 nm; over 90% transmission from 400–800 nm CTE 3.2 × 10⁻⁶/K (0–300°C) Display substrates, sensors, MEMS, electronic substrates and carrier glass Choose for thin, flat electronic and sensor substrates with high dimensional stability.
SCHOTT B 270 Super-white modified soda-lime crown glass nd 1.5230; ve 58.3 ± 0.6 CTE 9.4 × 10⁻⁶/K (20–300°C); Tg 542°C Display covers, instrument windows, lighting, microscopy and coated substrates Choose for clear, cost-effective cover and instrument glass rather than precision imaging optics.
SCHOTT ZERODUR Near-zero-expansion glass-ceramic nd 1.5424; vd 56.1 CTE classes down to 0 ± 0.020 × 10⁻⁶/K over 0–50°C Telescope mirrors, metrology, lithography, stages and space optics Choose for exceptional dimensional stability and low thermal expansion.
Germanium Infrared optical semiconductor material High refractive index around 4 in the long-wave infrared; wavelength-specific data applies High density and temperature-sensitive transmission Thermal imaging, gas detection and LWIR optical windows Choose for compact, high-index infrared windows and lenses in the LWIR region.

Material values are grade-specific and use the stated wavelength or temperature condition. Final component specifications are defined by the drawing and application.

Choose by Wavelength

Match the Material to the Optical Band

Visible, UV, laser, filter and infrared systems require different transmission, refractive-index and dispersion characteristics.

Visible imaging and machine vision

Use N-BK7, K9/H-K9L and related crown or flint grades according to refractive index, dispersion, transmission and optical design.

Explore →

UV and laser transmission

Use fused silica, JGS1, HPFS, Suprasil or CaF2 according to wavelength, OH content, homogeneity and laser requirements.

Explore →

Spectral filtering

Use colored filter glass by passband, cutoff wavelength, thickness and required spectral curve.

Explore →

Infrared transmission

Use germanium, ZnSe, chalcogenide glass, sapphire or other specialty materials according to MWIR/LWIR band and environment.

Explore →

Choose by Environment

Match the Material to Temperature and Service Conditions

Thermal expansion, temperature, chemical stability, hardness and dimensional stability shape the finished component design.

High temperature and thermal shock

Borosilicate glass, fused silica and quartz glass provide different levels of thermal expansion and temperature performance.

Explore →

Electronic and display processing

Aluminosilicate and alkali-free glasses support thin substrates, sensor covers, MEMS and display-related processing.

Explore →

Low-expansion precision structures

ZERODUR, ULE and related materials are selected for mirror substrates, metrology and thermally stable structures.

Explore →

Clear covers and instrument windows

B 270, low-iron and clear soda-lime glass provide economical options for transparent covers and coated substrates.

Explore →

Available Forms

From Raw Glass to Machined Components

ANTGLASS supplies material in practical starting forms and converts it into drawing-based finished parts.

Full sheets and cut sheetsCNC-ready blanksOptical blocks and prismsDiscs, rings and windowsWafers and carrier wafersTubes, rods and capillariesFilter glass platesCustom finished components

Products Manufactured from These Materials

Windows, Wafers, Substrates, Filters and Custom Parts

Material selection and product design are connected through geometry, surface, edge, coating and inspection requirements.

Precision Optical Glass Windows Precision optical and protective glass windows for sensors, instruments, imaging systems and optical assemblies—not architectural building windows. View details → Sensor & Machine Vision Glass Windows Protective and optical-interface glass windows for CMOS, CCD, machine-vision cameras, scanners and industrial sensors. View details → Laser Windows ANTGLASS manufactures custom laser windows for laser sources, beam delivery, protective enclosures, cutting systems, analytical instruments and optical assemblies. View details → Infrared Optical Windows ANTGLASS manufactures infrared optical windows for thermal imaging, gas sensing, spectroscopy, night vision, laser equipment and protected IR detector assemblies. View details → Glass Cover Plates Custom glass cover plates for displays, instruments, electronic devices and protective interfaces, reviewed by material, shape and surface requirements. View details → Glass Substrates Precision glass substrates for optical coatings, sensors, MEMS, electronics and scientific applications, supplied or processed to drawing. View details → Glass Wafers Project-specific glass wafers reviewed by material, diameter or outline, thickness, edge profile, surface condition, cleaning and packaging. View details → Optical Filter Glass Components Custom filter-glass components and substrates using verified material grades and project-specific spectral, dimensional and surface requirements. View details → Glass Discs, Rings & Spacers Round discs, annular rings, washers and spacer components for optical, sensor, laboratory and equipment assemblies. View details → Industrial Sight & Gauge Glass Observation, inspection, flow, level and gauge glass components for industrial equipment and technical assemblies. View details → Precision Glass Tubes & Cylindrical Components Cut, ground and finished glass tubes and cylindrical components with drawing-based length, diameter, end-face and edge requirements. View details → Optical Glass Prisms ANTGLASS manufactures custom optical glass prisms for beam deviation, reflection, image rotation, dispersion, spectroscopy and optical instrument assemblies. View details →

ANTGLASS Processing Capabilities

Precision Machining for Optical and Technical Glass

ANTGLASS cuts, CNC machines, drills, grinds, laps, polishes, cleans and packages glass components.

Cutting and blank preparation

ANTGLASS cuts full sheets, plates, wafers and blocks into controlled blanks for precision machining.

CNC machining and drilling

Contours, holes, slots, notches, pockets and custom shapes are machined according to the component drawing.

Grinding and thickness control

Grinding and lapping establish thickness, flatness, parallelism, geometry and preparation for polishing.

Optical and edge polishing

Faces and edges are polished for transmission, sealing, handling, assembly and cosmetic requirements.

Cleaning and handling

Ultrasonic cleaning and controlled handling support optical, electronic, laboratory and sensor components.

Inspection and packaging

Material identity, dimensions, geometry, surfaces and edges are checked and protected for shipment.

Material to Finished Component

A Six-Stage Selection and Manufacturing Route

The process links application requirements, material grade, supply form, component drawing, machining and inspection.

01

Define the application

Identify wavelength, temperature, environment, mechanical function, size and production quantity.

02

Select the material family

Compare borosilicate, fused silica, optical glass, filter glass, substrate glass and specialty materials.

03

Choose the grade and form

Select a brand or grade and the required sheet, blank, wafer, block, tube or other starting form.

04

Design the finished component

Set dimensions, tolerances, holes, slots, edge form, surface finish and coatings.

05

Machine and inspect

Cut, CNC machine, grind, polish, clean and inspect the glass to the approved drawing.

06

Pack and supply

Use the required separators, trays, clean packaging, labels and inspection documentation.

Frequently Asked Questions

Optical and Precision Glass Materials FAQ

Answers about material selection, grade comparison and custom processing.

How should buyers choose a precision glass material?

Start with wavelength or visual function, temperature and thermal cycling, chemical exposure, mechanical environment, available form, finished geometry, surface requirements, quantity and cost. ANTGLASS then connects the material to the manufacturing route.

Which optical and technical glass materials does ANTGLASS supply and process?

ANTGLASS supplies and processes borosilicate glass, fused silica and quartz, optical crown and flint glass, colored filter glass, aluminosilicate and alkali-free glass, low-iron and soda-lime glass, low-expansion materials and infrared or specialty optical materials.

Can ANTGLASS recommend an alternative glass grade?

Yes. Material substitution is reviewed by the exact optical, thermal, chemical, mechanical, dimensional, supply-form and cost requirements rather than by a family name alone.

Can ANTGLASS manufacture finished components from these materials?

Yes. ANTGLASS cuts, CNC machines, drills, grinds, laps, polishes, cleans and packages windows, substrates, wafers, filters, discs, rings, tubes, prisms and custom-shaped components.

What information should be included in a material RFQ?

Provide the preferred grade or target properties, application, drawing, dimensions, critical tolerances, functional surfaces, coating or sealing requirements, quantity, inspection, cleaning and packaging needs.

Custom Manufacturing RFQ

Confirm the Grade, Supply Form and Finished Part Together

Official material data identifies what a grade is. The quotation must separately confirm the available thickness or stock form, component drawing, machining, inspection, quantity and documentation required from ANTGLASS.

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RFQ / Contact

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Provide detailed specifications for your industrial glass requirements. Our engineering team reviews all submissions for material, processing and tolerance feasibility.

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Related Manufacturing Resources

Continue to Relevant Processing, Application and Technical Pages

These selected pages provide deeper process, application and design context without changing the commercial page focus.

Related Processing

Review machining feasibility, edge, hole and surface routes.

Related Applications

See how similar components are used in industrial systems.

Technical Guides

Prepare drawing, tolerance, inspection and RFQ requirements.