Quartz Optical Window
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Product Overview
Felix Glass is a professional custom quartz window manufacturer and OEM optical quartz fabrication supplier, providing high-performance semiconductor-grade fused silica optical windows for system integrators, laser equipment factories and optical research laboratories worldwide.Our quartz optical windows are manufactured from 99.99% high-purity fused silica, supporting JGS1 deep UV grade, JGS2 UV-Vis grade and JGS3 infrared grade. Featuring ultra-low CTE, outstanding high-temperature stability and full-spectrum optical transmittance, these precision optical viewports are widely used as protective windows, vacuum viewports and laser isolation windows in extreme industrial environments.We provide full custom CNC machining, ultra-precise optical polishing and professional AR coating services, strictly compliant with MIL optical standards and ISO 9001 quality system, supporting prototype sampling and large-volume OEM mass production.
Product Overview
Felix Glass is a professional custom quartz window manufacturer and OEM optical quartz fabrication supplier, providing high-performance semiconductor-grade fused silica optical windows for system integrators, laser equipment factories and optical research laboratories worldwide.
Our quartz optical windows are manufactured from 99.99% high-purity fused silica, supporting JGS1 deep UV grade, JGS2 UV-Vis grade and JGS3 infrared grade. Featuring ultra-low CTE, outstanding high-temperature stability and full-spectrum optical transmittance, these precision optical viewports are widely used as protective windows, vacuum viewports and laser isolation windows in extreme industrial environments.
We provide full custom CNC machining, ultra-precise optical polishing and professional AR coating services, strictly compliant with MIL optical standards and ISO 9001 quality system, supporting prototype sampling and large-volume OEM mass production.
Product Specifications
| Parameter | Specification |
|---|---|
| Material | 99.99% High-Purity Fused Silica (JGS1/JGS2/JGS3 Optional) |
| Size Range | 3mm–600mm round/square/rectangle/custom shape |
| Thickness | 0.1mm–30mm |
| Surface Quality | 60/40, 40/20, 20/10 MIL optical surface finish |
| Flatness | λ/2, λ/4, λ/10 @632.8nm high precision |
| Coating Options | Uncoated, single/double-sided AR anti-reflection coating |
| Transmission Range | 185nm–3500nm full UV-Vis-IR spectrum |
| Operating Temperature | Up to 1100°C continuous working |
| CTE | 5.5×10⁻⁷ /°C ultra-low thermal expansion |
| Tolerance | Dimension ±0.05mm, thickness ±0.02mm |
| Customization | Polishing, chamfering, drilling, profiling, coating |
Key Features
✓ Deep UV to Infrared Full Spectrum High Transmittance
✓ Ultra-Low CTE for High Precision Optical Stability
✓ High Temperature & Thermal Shock Resistant
✓ Vacuum-Grade Low Outgassing Fused Silica Material
✓ MIL-Spec Polished Surface & Strict Flatness Control
✓ Low MOQ OEM Custom Laser & Semiconductor Windows
Manufacturing Capabilities
1. Full‑Axis CNC Machining for complex outlines & holes2. Precision Edge Grinding & Safety Chamfer Processing3. Single & Double Sided Ultra‑Fine Optical Polishing4. High‑Temperature Tempering & Stress Relief Treatment5. Magnetron Sputtering Multi‑Layer Optical Coating6. Complete Optical Performance Lab Inspection
Available Material Grades
1. JGS1 Deep UV Grade – For deep ultraviolet laser & UV detection
2. JGS2 UV-Vis Grade – General optical instrument standard grade
3. JGS3 IR Grade – Optimized for infrared imaging & IR optics
4. 99.99% Vacuum-Grade Fused Silica – Semiconductor vacuum equipment dedicated
Main Application Industries
1. Semiconductor Vacuum Chamber Viewports
2. UV Laser & Infrared Laser Protective Windows
3. Laboratory Spectroscopy & Analytical Instruments
4. High-Temperature Industrial Furnace Observation Ports
5. Aerospace Optical Detection Systems
6. Medical UV Sterilization & Diagnostic Equipment
7. Photovoltaic Testing & Optical Metrology Devices
8. Precision Industrial Optical Instrumentation
Custom Manufacturing Service
1. Full OEM & ODM one‑stop optical glass customization
2. Small prototype sample orders supported before mass production
3. Ultra‑low MOQ for laboratory & R&D startup clients
4. Free technical drawing evaluation & customized solution design
5. Custom coating, printing, shaping and hole layout processing
Why Choose Felix Glass
1. 19+ years professional fused silica optical glass manufacturing experience
2. ISO 9001 certified full factory quality control system
3. Independent optical testing laboratory for all performance indicators
4. Stable export supply chain serving global industrial customers
5. Standardized production line to guarantee consistent fast delivery
Frequently Asked Questions
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1. Q: What is the MOQ for custom quartz optical windows?A: We support ultra-low MOQ, single prototype samples are available for optical testing and R&D projects.2. Q: Can you produce quartz windows strictly according to customer drawings?A: Yes, our optical engineering team supports 2D/3D CAD drawing customization, free technical review and 24-hour formal quotation.3. Q: What is the difference between JGS1, JGS2 and JGS3 quartz windows?A: JGS1 for deep UV penetration; JGS2 for UV-visible general optics; JGS3 for infrared optical systems.4. Q: Are quartz optical windows suitable for high vacuum environments?A: Yes, high-purity fused silica features extremely low outgassing, fully compliant with semiconductor vacuum standards.5. Q: Can AR coating improve the transmittance of quartz windows?A: Double-sided AR coating increases light transmittance above 97%, reducing laser light loss and reflection interference.6. Q: What flatness grades are available for precision optical windows?A: Standard λ/2, high-precision λ/4 and ultra-precision λ/10 flatness for high-end optical systems.7. Q: Can quartz windows withstand rapid temperature changes?A: Ultra-low CTE structure provides excellent thermal shock resistance, no cracking under rapid heating and cooling.8. Q: What is the long-term working temperature limit?A: Stable continuous operation at 1100°C, instant temperature resistance up to 1300°C.9. Q: Do you provide inspection reports for optical windows?A: Full optical transmittance, flatness and dimension inspection reports can be provided.10. Q: What shapes of quartz viewport windows can you customize?A: Round, square, rectangular, oval and irregular special-shaped optical windows.
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