Ordinary protective glass causes polarization distortion and damages uniform AR/VR imaging effect
Custom Broadband AR Sapphire Protective Cover for AR/VR HMD Eyepiece Optics
Item specifics
- Material
- Single Crystal Sapphire (Al₂O₃)
- Optical Feature
- Low Birefringence
- Hardness
- Mohs 9
- Thickness Range
- 0.2mm–2.5mm
- Surface Finish
- Grade 000 Optical Polish
- Coating
- Custom Broadband AR Coating
- Machining
- CNC Micro Machining, Contour & Chamfer
- Application
- AR/VR HMD Eyepiece Optical Module
- Operating Temp
- -40℃ ~ +85℃
- Supply
- Prototype Sampling & Mass OEM
Review
Description
Felix Glass manufactures custom ultra-thin low birefringence single crystal sapphire protective covers for consumer and industrial AR/VR HMD eyepiece optics. Our optical-grade sapphire substrate features Mohs 9 extreme surface hardness, effectively preventing scratches during assembly and end-user daily operation. We provide customizable broadband anti-reflection coating to suppress stray light, reduce ghost reflection and boost light transmittance. Available thickness covers 0.1mm~0.5mm, supporting precision CNC micro-shape machining, edge chamfer and tailored optical specifications. Widely adopted in next-generation AR wearable display, industrial AR imaging modules and VR head-mounted eyepiece systems. We offer prototype validation and stable large-volume OEM manufacturing to global wearable optics designers and module manufacturers. Thin optical substrates are vulnerable to scratches during assembly and daily end-user usage Standard optical coatings trigger high surface reflection, lowering display contrast and visual experience Few suppliers deliver ultra-thin sapphire panels with consistent optical uniformity and low birefringence control We select imaging-grade low birefringence single crystal sapphire as base material, eliminating polarization distortion risks which commonly exist in ordinary optical glass. The Mohs Grade 9 hardness offers superior wear resistance to protect internal eyepiece optical elements. Custom broadband AR coating optimizes transmittance within target wavelength band, suppress ghost image and surface reflection for clearer AR/VR visuals. We support ultra-thin wafer processing starting at 0.1mm thickness, satisfying compact HMD lightweight design requirements. All manufacturing processes are finished inside Class 100 dust-free workshop to guarantee consistent optical parameters batch by batch. Stable polarization performance, prevents distortion for wearable imaging optics. Improve light transmission, reduce stray light and eliminate ghost reflection. Micro contour cutting, precision edge chamfer for compact AR/VR hardware design. We provide full custom manufacturing service strictly following customer DXF/DWG engineering drawings. Services include ultra-thin sapphire wafer slicing, CNC micro-shape cutting, precision edge chamfering, multi-layer vacuum broadband AR coating, ultrasonic cleaning and full optical parameter testing. Our optical engineering team can carry out coating spectrum customization, structural DFM optimization and reliability simulation according to your wearable device working environment. We accept small batch prototype sampling for pre-project verification and scalable mass OEM production for formal product launch. Precision slicing to reach target thickness starting from 0.1mm. Ultra-precision polishing to guarantee surface flatness and low defects. Cut irregular outlines, micro holes and chamfer as drawings required. Deposit customized anti-reflection film inside vacuum coating machine. 100% inspection of birefringence, transmittance and appearance before delivery. R&D teams for lightweight head-mounted display and wearable consumer devices. Industrial augmented reality equipment, machine vision and wearable inspection devices. Engineers need low birefringence sapphire samples for imaging system verification. Specialized in custom single crystal sapphire optical components for high-end imaging systems. Independent broadband AR coating development without outsourcing, flexible wavelength customization. Short lead time for AR/VR pre-project prototype validation. Focused birefringence & transmittance testing for imaging-grade sapphire products. Rich experience serving global AR/VR optical module developers and OEM customers. Yes, we fully support CNC custom shape, edge treatment and broadband AR coating strictly according to your DXF/DWG technical files. Standard sample production cycle: 8~13 working days after drawing and specification confirmation. Low birefringence sapphire avoids polarization distortion, ensuring consistent, uniform imaging quality for wearable display optical path. We customize AR coating spectrum according to customer requirements, covering visible band for consumer and industrial AR/VR imaging systems. Share your engineering drawings, target thickness, coating spectrum specifications and expected order quantity. Our professional optical engineering team will design low birefringence sapphire eyepiece cover solution and provide formal quotation for your AR/VR wearable project within 24 hours.
Wearable AR/VR Optical Components
Ultra-Thin Broadband AR Sapphire Protective Cover for AR VR Eyepiece Optics | Low Birefringence Single Crystal Sapphire Window
Engineering pain points we resolve
Core Pain Points Facing AR/VR Optical Engineers
Direct engineering overview
Advantages of Felix Glass Low Birefringence Sapphire Eyepiece Cover
Low Birefringence Imaging-Grade Sapphire
Custom Broadband AR Anti-Reflection Coating
0.1mm~0.5mm Ultra-Thin CNC Machining
Engineering specification table
Optical & Mechanical Specifications
Item
Parameter
Base Material
Single crystal optical grade sapphire
Birefringence Level
Low birefringence grade for imaging systems
Available Thickness
0.1mm / 0.2mm / 0.3mm / 0.5mm
Functional Coating
Custom broadband AR anti-reflection coating
Surface Standard
Optical grade, low surface defects
Target Application
AR / VR HMD eyepiece, wearable imaging optical module
Custom processing support
One-Stop Customization Service for AR/VR Sapphire Components
In-house manufacturing workflow
Complete Production Process in Class 100 Dust-Free Workshop
Ultra-Thin Sapphire Wafer Slicing
Double-Sided Optical Polishing
CNC Micro Contour Machining
Broadband Vacuum AR Coating
Optical Testing & Dust-Free Packing
Target customers & application scenarios
Main Target Buyers & Project Types
Consumer AR/VR Brand Manufacturers
Industrial AR Optical Module Suppliers
Optical Design Institutes & R&D Labs
Why choose Felix Glass
Core Competitive Advantages
19+ Years Precision Optical Manufacturing
Self-Operated Vacuum Coating Workshop
Fast Prototype Sampling Service
Strict Optical Parameter Inspection
Overseas Wearable Optics Project Experience
Related sapphire & wearable optical components | Theme cluster internal links
Internal Links For Sapphire & Wearable Optical Product Cluster
Buyer FAQ
Frequently Asked Questions
Can you fabricate ultra-thin sapphire eyepiece cover based on customer engineering drawings?
How long is the prototype sample lead time?
Why low birefringence sapphire is essential for AR/VR eyepiece optics?
What wavelength range can your broadband AR coating cover?
Action stage
Send Your Optical Drawings For Custom Technical Quotation
