Hardness
Mohs 9Supports exposed windows that may face abrasion or repeated cleaning.
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Custom Sapphire Window Manufacturer
| Share | |
|---|---|
| Categories | Sapphire Optical Windows |
| Brand | FELIX GLASS optical glass Manufacturing base |
| Material | Optical-grade single-crystal sapphire |
| Crystal Orientation | C-plane, A-plane, R-plane by review |
| Dimension | Round, square, rectangular or drawing-based |
| Tolerance | Drawing-dependent; critical dimensions reviewed |
| Surface Quality | Commercial to optical scratch-dig specification |
| Surface Flatness | Project-specific at agreed test wavelength |
| Transmission Band | Typical uncoated material range: approx. 0.2-5.5 um |
| Coating | Uncoated, AR, BBAR or custom by review |
| MOQ | Prototype and batch quantities reviewed |
| Lead Time | Quoted after drawing and process review |
| Download |  |
Detail Information
Custom sapphire window manufacturer
Drawing-Based Sapphire Windows for Demanding Optical Systems
Felix Glass Co., Limited manufactures custom sapphire optical windows for teams that need controlled geometry, optical surface quality, durable exposed surfaces and documented inspection requirements. Projects are reviewed against the working wavelength, crystal orientation, sealing design, environment and purchasing specification before quotation.
Round, square, rectangular and drawing-based shapes
C-plane, A-plane and R-plane options by review
Prototype and repeat-batch manufacturing support
Request an Engineering Review
Direct answer
What Does a Custom Sapphire Window Manufacturer Supply?
A custom sapphire window manufacturer converts single-crystal aluminum oxide blanks into polished protective or transmissive optical components made to a buyer's drawing. The manufacturing route can include orientation review, blank preparation, CNC shaping, grinding, optical polishing, edge treatment, coating and inspection. Sapphire is commonly evaluated where abrasion resistance, thermal stability and transmission from ultraviolet through infrared wavelengths are important.
Technical data
Custom Sapphire Window Specification Guide
The entries below are quotation inputs, not universal guaranteed values. Final capability and acceptance criteria are confirmed from the drawing, application and inspection plan.
| Specification Field | Available Direction | RFQ Note |
|---|---|---|
| Material | Optical-grade single-crystal sapphire (Al2O3) | State optical, thermal and environmental requirements. |
| Crystal Orientation | C-plane, A-plane, R-plane or drawing-defined orientation | Specify orientation and optic-axis requirements when critical. |
| Dimension | Round, square, rectangular, stepped, slotted or custom outline | Provide a controlled drawing with units and datums. |
| Tolerance | Commercial to precision dimensional control by feasibility review | Identify critical dimensions separately from general tolerances. |
| Surface Quality | Commercial polish to optical scratch-dig requirements | State the applicable standard and clear aperture. |
| Surface Flatness | Project-specific flatness measured at the agreed wavelength | Define aperture, test wavelength and measurement condition. |
| Transmission Band | Typical uncoated sapphire material range is approximately 0.2-5.5 micrometers | Actual transmission depends on thickness, orientation, finish and coating. |
| Coating | Uncoated, AR or BBAR; other functional coatings by review | Provide wavelength band, angle of incidence and environment. |
| MOQ | Prototype and batch quantities reviewed by geometry and process | Include annual demand and release quantity when available. |
| Lead Time | Quoted after drawing, quantity, material, coating and inspection review | Identify sample and production milestones in the RFQ. |
Material properties
Why Engineers Evaluate Sapphire for Optical Windows
Sapphire is anisotropic and birefringent, so orientation and optical path should be considered alongside mechanical durability. Values and behavior can vary with temperature, wavelength and measurement direction.
Density
Approximately 3.98 g/cm3Useful for mass and mounting calculations during component design.
Optical Behavior
Birefringent crystalOrientation can matter in polarization-sensitive optical paths.
Thermal Behavior
Anisotropic and temperature-dependentThermal gradients, mounting stress and sealing design require system-level review.
Application fit
Application and Selection Table
| Application | Buyer Priority | Specification Focus | Typical Buyer Role |
|---|---|---|---|
| EO/IR sensor protection | Transmission plus exposed-surface durability | Band, incidence angle, flatness, coating and environmental sealing | Optical Engineer, R&D Manager |
| Underwater and machine vision | Image quality in a sealed assembly | Pressure design, aperture, coating, edge condition and housing interface | Optical Engineer, Equipment Purchasing Manager |
| High-temperature sensing | Thermal stability and optical access | Temperature cycle, mounting method, thickness and surface finish | R&D Manager, Procurement Director |
| Precision instruments | Repeatable geometry and inspection records | Datums, tolerances, scratch-dig, flatness and documentation | Optical Engineer, Procurement Director |
| Laser or imaging assemblies | Wavefront and reflection control | Wavelength, power density, flatness, parallelism and coating | Optical Engineer, R&D Manager |
Manufacturing process
From Drawing Review to Protected Packing
- 01Requirement review — Confirm revision, material, orientation, geometry, quantity and critical acceptance points.
- 02Blank planning — Select blank form and machining allowance around the approved route.
- 03Shaping and grinding — Generate the outline, thickness and edge geometry with diamond tooling.
- 04Optical polishing — Develop the specified faces, clear aperture and cosmetic quality.
- 05Coating when specified — Apply an approved coating design for the stated band and environment.
- 06Inspection and packing — Verify agreed characteristics and separate polished parts for shipment.
Quality inspection
Inspection Is Matched to the Critical Features
The quality plan should measure what affects system performance rather than apply the same test depth to every order. Drawing revision and acceptance methods are aligned before production.
Dimensional and datum verification
Surface quality and edge review
Flatness or parallelism when specified
Coating region and visual uniformity
Part identification and protected packing
Factory capability and E-E-A-T
Supplier Evidence Buyers Can Request
Felix Glass Co., Limited supports drawing-based optical component projects through cutting, CNC grinding, polishing, optional coating coordination, inspection planning and protected packaging. Buyers should request the documents relevant to their own compliance and validation process.
Engineering Review
Manufacturability feedback can cover geometry, tolerances, orientation, coating inputs and inspection feasibility.
Quality Documentation
Inspection scope and reporting requirements can be defined before quotation and purchase-order release.
Certification Support
ISO 9001 quality-system information and applicable RoHS or REACH material documentation can be requested for review.
Prototype to Batch
Sample and repeat-order planning can be discussed according to geometry, tooling, quantity and validation needs.
Engineering resources
Request the Factory Brochure and CAD RFQ Template
Verified public download URLs were not available at preparation time. Use the request links below to obtain the current controlled files instead of relying on an outdated copy.
Solution pathways
Continue the Engineering Review
Engineering FAQ
Custom Sapphire Window Buyer Questions
What information is required for a custom sapphire window quotation?
Provide the controlled drawing, dimensions, tolerances, quantity, crystal orientation, scratch-dig, flatness, clear aperture, wavelength, coating, environment and required inspection records.
Which sapphire crystal orientation should an optical engineer specify?
The choice depends on the optical path, polarization sensitivity, thermal design and machining geometry. C-plane is common, but A-plane or R-plane may be appropriate when the system design requires a different axis relationship.
Can sapphire windows be made in non-round shapes?
Square, rectangular, stepped, slotted and other drawing-based outlines can be reviewed. Feasibility depends on size, thickness, corner geometry, tolerance and edge requirements.
How should surface quality be stated on the drawing?
Identify the scratch-dig requirement, applicable standard, clear aperture, cosmetic zones and whether coated and uncoated surfaces use different acceptance criteria.
What must be specified for sapphire window flatness?
State the flatness value, test wavelength, clear aperture, support condition and whether the requirement applies before or after coating.
Can AR or BBAR coatings be applied to sapphire?
Coating feasibility can be reviewed for the wavelength band, angle of incidence, polarization, environment and durability requirement. Include the coated side and clear-aperture definition.
Is sapphire always better than fused silica or BK7?
No. Sapphire offers high hardness and useful thermal durability, while fused silica or BK7 may be better for other wavelength, wavefront, cost or fabrication priorities. Material selection should follow the complete system requirement.
How are sapphire windows inspected before shipment?
The inspection plan may include dimensions, edge condition, surface quality, flatness, parallelism, coating appearance and identification. The exact methods and records should be agreed before production.
Can a prototype be ordered before batch production?
Prototype planning can be discussed based on material availability, geometry, tooling, coating and inspection scope. State the sample quantity and validation plan in the RFQ.
What affects lead time for a custom sapphire window?
Blank availability, orientation, geometry, polishing difficulty, coating schedule, inspection depth, quantity and drawing revision status all affect the quoted schedule.
Action
Submit Sapphire Window RFQ
Send the Drawing for a Manufacturability and RFQ Review
Include the buyer role, application, drawing revision, annual demand, first-order quantity, wavelength, operating environment and the characteristics that are critical to system performance.
Need Custom Optical Glass Solution?
Send us your drawing, dimension & coating requirements for fast quotation within 24 hours.
Get Free RFQRelated Products
Custom Precision Optical & Glass Components Manufacturer – Felix Glass Co., Limited.
We supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.
CONTACT US NOW FOR A QUOTE
Send an inquiry now—we will respond promptly within 1–24 hours and provide our best formal quote within 1–2 days! Let’s start a mutually beneficial partnership today...
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Learn more from our FAQ
- What is your MOQ for custom optical glass and display glass parts?
Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.
- Can I get free glass samples for testing before bulk order?
Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.
- What is the production lead time for custom optical glass components?
What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.
- Are your optical glass products ISO, CE and RoHS certified?
All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.
- Do you offer one-stop custom optical glass processing services?
Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.
CONTACT US NOW FOR A QUOTE
Send an inquiry now—we will respond promptly within 1–24 hours and provide our best formal quote within 1–2 days! Let’s start a mutually beneficial partnership today...
- Name
- *Title
- *Content
