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Sapphire Optical Window for High Temperature Industrial Sensor

Sapphire Optical Window for High Temperature Industrial Sensor

group nameSapphire Optical Windows
Min Order5 piece
brand nameFELIX GLASS optical glass Manufacturing base
modelFG-WIN-19
payment methodL/C, D/A, D/P, Western Union
update timeFri, 17 Jul 2026 17:43:15 GMT

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Paramtents

Material Sapphire (Al₂O₃) 1: High Purity Fused Silica 2: Synthetic Single-Crystal
Diameter Range 0.5mm – 200mm
Thickness Range 0.1mm – 30mm
SiO₂ Purity (Quartz) ≥99.99%
Sapphire Purity: 99.99% Al₂O₃
Long-Term Working Temp (Quartz 1100–1200℃
Long-Term Working Temp (Sapphire) ≤1800℃
Thermal Expansion Coefficient (Fused Silica 5.5 × 10⁻⁷ /°C
Sapphire Softening Point 2040℃
Processing Round cutting, edge chamfering, double-sided polishing, mounting hole drilling
Optional Coating IR anti-reflection coating, broadband AR coating, UV enhanced coating

Packging & Delivery

Size50cm x50cm x30cm
Weight0.5kg / piece
Min Order5 piece

Briefing

Custom sapphire windows for high-temperature industrial sensors with CNC machining, polishing, coating and inspection options.

Detailed

Attention · High-temperature optical protection

1. Product Introduction

Sapphire Optical Window for High Temperature Industrial Sensor

Felix Glass Co., Limited provides ultra-precision CNC-machined, special-shaped sapphire optical parts. Based on single-crystal sapphire blanks, we deliver customized irregular octagonal, rectangular, stepped and chamfered sapphire optics for harsh industrial optical systems.

Our CNC sapphire machining supports controlled flatness, parallelism and dimensional tolerances for EO/IR sensing, medical devices and high-temperature furnace equipment. Each requirement is reviewed against the customer drawing and operating environment.

Single-crystal sapphire High-temperature use Drawing-based CNC

View Sapphire Optical Windows

Felix Glass CNC machined special shaped sapphire optical parts, custom irregular sapphire optics with multi special shapes for industrial precision optical equipment — Round sapphire windows in drawing-defined diameters, thicknesses and edge profiles.

Felix Glass CNC machined special shaped sapphire optical parts, tapered wedge, polygonal custom sapphire prisms for optical path — Optically polished sapphire windows for sensor and instrument protection.

Attention · Direct answer

What Does a Sapphire Window Do for a High-Temperature Sensor?

A sapphire window creates a durable optical barrier between the sensor and a hot, abrasive or chemically demanding process environment. Its role is to protect the optical path while maintaining transmission within the selected wavelength range.

Final material orientation, coating, thickness and mounting design depend on temperature, pressure, spectral band, angle of incidence and seal configuration.

Interest · Original technical content retained

2. Material & CNC Machining Performance

Substrate	A-plane or C-plane single-crystal sapphire
Original machining targets	Dimension ±0.005 mm, flatness ≤ λ/4 and parallelism ≤ 0.01 mm, subject to drawing review
Available shapes	Octagonal, rectangular, stepped blanks, elliptical and custom irregular outlines
Surface finish	Optical-grade polishing with project-defined surface quality
Optional coatings	Single- or double-side broadband AR coating and UV-to-IR application-specific coatings
Hardness and resistance	Mohs 9 scratch resistance; original application range stated as −70°C to 1200°C, with acid and alkali resistance evaluated for the complete coated assembly

Tolerance and temperature values are specification targets, not universal guarantees. Felix Glass confirms feasibility from size, geometry, orientation, coating and test method.

Felix Glass CNC machined special shaped sapphire optical parts, assorted rod, cylinder, round, rectangular custom sapphire optics samples — Surface condition and edge quality are reviewed against the optical drawing.

Interest · Manufacturing route

3. Custom CNC Processing Service

One-Stop Processing

Sapphire blank cutting, CNC shaping, precision polishing, vacuum coating and edge chamfering.

Flexible Production

Prototype, small-batch and repeat production support based on drawing and inspection needs.

Drawing Acceptance

CAD, STEP and PDF drawings can be reviewed for geometry, clear aperture, edge profile and mounting interface.

Inspection Planning

Interferometric flatness, spectral transmission and dimensional inspection can be defined before production.

Felix Glass CNC machined special shaped sapphire optical parts, custom irregular curved outline sapphire lens and optical blanks — Controlled optical processing supports consistent production and repeatable inspection.

Felix Glass CNC machined special shaped sapphire optical parts, thick wall octagonal sapphire substrate custom machined blank — Round, rectangular and custom profiles can be evaluated for manufacturability.

Interest · RFQ checklist

Specifications to Confirm Before Manufacturing

Working wavelength and target transmission
Outside dimensions, thickness and clear aperture
Crystal orientation and optical surface quality
Flatness, parallelism and dimensional tolerances
Operating temperature, pressure and atmosphere
Coating band, angle of incidence and polarization
Mounting, sealing, cleaning and expected quantity

Desire · Original application order retained

4. Core Application Scenarios

High-Temperature Furnaces

Industrial furnace observation and temperature-sensor protection where heat, particles and cleaning cycles affect the exposed optic.

Medical Equipment

Optical sensing windows that require a durable polished surface and controlled geometry.

EO/IR Monitoring

Thermal monitoring camera assemblies when sapphire transmission matches the detector band.

Aerospace Optoelectronics

Precision protective components for compact optical and sensor assemblies.

Laser Optical Paths

Protective optics for systems requiring abrasion resistance and a project-defined coating.

Biomedical Diagnostics

Custom windows for instruments with defined cleaning, transmission and mechanical requirements.

Felix Glass custom sapphire optical window for high temperature industrial sensor — High-temperature testing and process review help align the window with the sensor environment.

Desire · Original advantages retained

5. Advantage of Our CNC Special Shaped Sapphire Parts

Dedicated sapphire CNC capability with multi-axis precision machining
Cutting methods selected to reduce edge chipping and crystal defects
AR coating options reviewed for the required optical band
Direct manufacturing support for custom optical components
Engineering review for drawing optimization and optical-path matching

Comparable solutions include an AR-coated sapphire window for thermal monitoring cameras and a C-plane sapphire flat window for medical equipment.

Desire · Quality and delivery

Inspection, Packaging and Related Sapphire Options

Inspection can cover dimensions, surface condition, flatness, parallelism and spectral performance when these items are defined in the purchase specification. Finished optics are separated and protected to reduce handling contact during shipment.

Watch and Wearable Crystal Custom Sapphire Components All-Shape Sapphire Optics

Action · Original CTA sequence retained

6. Three-Layer Standard CTA

Technical Data

Request sapphire machining and material information for internal review.

Send Your Drawing

Provide CAD, STEP or PDF files with the working conditions and inspection criteria.

Engineering Discussion

Review material orientation, coating, tolerances, mounting and production quantity.

Request a Drawing Review

Action · Engineering FAQ

Sapphire Optical Window FAQ

Can sapphire be used for every high-temperature sensor?

No. The sensor wavelength, temperature, pressure, atmosphere and mounting design must all be checked. Sapphire is appropriate only when its transmission and mechanical behavior match the system.

Can you manufacture non-round or stepped windows?

Yes. Rectangular, octagonal, stepped, chamfered, elliptical and other drawing-defined shapes can be reviewed for CNC machining and polishing.

Are the listed tolerances available on every size?

No. Achievable tolerances depend on diameter, thickness, shape, aspect ratio, crystal orientation, quantity and inspection method.

What information should be included with an RFQ?

Send dimensions, tolerances, wavelength, clear aperture, coating target, operating temperature, pressure, mounting method, inspection requirements and quantity.