Flexible Size and Thickness
Ultra-thin sheets and thicker high-rigidity blanks can be evaluated for compact sensors, optical instruments, and industrial assemblies.
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Square Custom Sapphire Optical Blank
| Share | |
|---|---|
| Categories | Sapphire Optical Windows |
| Brand | FELIX GLASS optical glass Manufacturing base |
| Model | FG-SAPP-SIGHT-HP-001 |
| Base Material | Optical Grade Single Crystal Sapphire (C-Plane Standard, Other Orientations Available) |
| Shape & Outline | Standard Square, Rectangular, Custom Irregular Profile Supported |
| Thickness Range | 0.1 mm – 60 mm, Custom Ultra-Thin / Heavy Thickness Available |
| Surface Finish | As-Cut Blank, Single/Double-Sided Optical Polishing, Optional AR Coating |
| Edge Processing | Raw Cut, Safety Chamfer, Countersink, Slot, Notch, CNC Profiling |
| Application Field | Precision Instruments, Machine Vision, LiDAR, Semiconductor Inspection, Custom Optical Assemblies |
| Custom Machining Service | OEM ODM Size Cutting, Drilling, Laser Marking, Silk-Screen Printing |
| FOB port | SHENGZHEN SHANGHAI GUANGZHOU |
| Terms of Payment | L/C, D/A, D/P, T/T |
| Download |  |
Detail Information
Attention
Product Overview
Felix Glass Co., Limited supplies square and rectangular optical-grade single-crystal sapphire blanks for drawing-based optical and industrial assemblies. Parts can be delivered as-cut, single-side polished, or double-side polished, with custom thickness, edge work, holes, slots, notches, marking, and optional anti-reflection coating reviewed against the customer drawing.
Direct answer: Available directions include C-plane sapphire as the standard orientation, thickness from 0.1 mm to 60 mm, square sizes up to 400 mm × 400 mm, flatness options from λ/4 to λ/10 depending on polishing grade, and custom CNC features. Final tolerances depend on size, thickness, geometry, coating, inspection method, and service conditions.
For finished observation-window formats, compare the high-pressure resistant sapphire sight glass. The broader Sapphire Optical Windows category covers additional window configurations.
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Core Technical Specification Table
The values below retain the available customization directions in the existing product information. The purchase drawing should define the acceptance criteria used for production and inspection.
| Parameter | Available Direction | Engineering Review Note |
|---|---|---|
| Base material | Optical-grade single-crystal sapphire; C-plane standard | Other crystal orientations can be reviewed. |
| Shape and outline | Square, rectangular, or drawing-defined irregular profile | Provide corner radius, datum, and outline tolerance. |
| Thickness range | 0.1 mm to 60 mm | Feasibility depends on part size, handling, and machining features. |
| Surface finish | As-cut, single-side polished, or double-side polished | State surface quality, roughness, flatness, and clear aperture. |
| Flatness option | λ/4 to λ/10 based on polishing grade | Specify test wavelength and measurement aperture. |
| Maximum square size | Up to 400 mm × 400 mm | Confirm thickness, usable area, packaging, and transport needs. |
| Optional coating | Broadband anti-reflection coating | Provide wavelength, angle of incidence, coated side, and target. |
| Edge processing | Chamfer, countersink, slot, notch, or CNC profiling | Include feature locations and position tolerances. |
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Core Technical Advantages
Multiple Surface Supply Modes
Choose an as-cut blank for customer processing or a factory-polished surface to reduce downstream preparation steps.
Mohs 9 Hardness
Sapphire provides strong scratch resistance and chemical stability for exposed optical surfaces and repeated handling.
Controlled Optical Geometry
Flatness, parallelism, surface quality, and clear aperture can be coordinated with the intended optical path.
Pre-Machining Options
Chamfers, holes, slots, notches, profiling, laser marking, and border printing can be reviewed before delivery.
When reflection control is part of the design, review the AR-coated sapphire protection window as a related configuration.
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Full Custom CNC Machining Capacity
Blank Preparation
Cut square, rectangular, or irregular blanks with process allowance planned for the finished geometry.
Precision Profiling
Use diamond-tool CNC processing for outlines, holes, slots, notches, chamfers, and countersinks.
Optical Finishing
Apply single-side or double-side polishing around the required flatness, parallelism, and surface quality.
Marking and Coating
Evaluate laser marking, silk-screen printing, and optional AR coating for the assembly and optical requirement.
For a thinner finished part, compare the ultra-thin polished sapphire glass cover.
Desire
Wide Cross-Industry Application Scenarios
Precision Instruments
Custom sapphire plates for optical measurement, encoder, microscope, and laboratory assemblies.
Machine Vision and LiDAR
Durable blanks for imaging and ranging windows where outline and optical geometry are drawing controlled.
Semiconductor Inspection
Hard, chemically stable optical access parts for inspection modules and process equipment.
Industrial Observation
Blanks intended for engineered sight-window assemblies after pressure, temperature, sealing, and housing review.
Medical and Laboratory Devices
Small optical windows for sensing and inspection equipment with application-specific documentation needs.
A related medical-device format is the custom C-plane sapphire flat window.
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Production & Quality Inspection Standards
- Drawing and material reviewConfirm sapphire orientation, dimensions, tolerance, quantity, surface finish, and service conditions.
- Dimensional verificationCheck thickness, outline, feature position, chamfer, and other drawing-defined dimensions.
- Optical inspectionEvaluate flatness, parallelism, surface quality, and transmission when included in the order specification.
- Final surface and edge reviewScreen for scratches, chips, edge defects, marking, coating condition, and packaging readiness.
Prototype and production quantities can be discussed. Lead time is confirmed after the drawing, quantity, coating, and inspection scope are reviewed.
Company and manufacturing background is available on the About Felix Glass page.
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Frequently Asked Questions
Can the sapphire blank be supplied without optical polishing?
Yes. As-cut blanks can be supplied for customer secondary processing. Single-side and double-side polishing are also available.
What shapes can be reviewed?
Square, rectangular, and drawing-defined irregular profiles can be evaluated with holes, slots, notches, chamfers, and countersinks.
Is anti-reflection coating available?
Broadband AR coating can be reviewed. Provide the wavelength range, angle of incidence, coated side, and performance target.
Can this blank be used in a pressure sight-window assembly?
It can be evaluated as the sapphire optical element, but allowable pressure is determined by the finished thickness, clear aperture, edge support, seal, housing, temperature, safety factor, and applicable design requirements. No pressure rating should be assumed without assembly-level engineering review.
What information is needed for a quotation?
Provide a drawing, dimensions, thickness, quantity, crystal orientation, surface quality, flatness, feature tolerances, coating, and operating conditions.
Can Felix Glass support prototype quantities?
Prototype and production quantities can be discussed after the engineering requirements and inspection plan are defined.
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Drawing Information for Engineering Review
- Overall length, width, thickness, corner radius, and quantity
- Crystal orientation, clear aperture, and surface finish
- Flatness, parallelism, surface quality, and inspection wavelength
- Hole, slot, notch, chamfer, countersink, and datum details
- Coating range, coated side, angle, and optical target
- Mounting, sealing, pressure, temperature, chemical, and packaging conditions
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Engineering Support & Inquiry Guide
Felix Glass Co., Limited supports drawing-based sapphire cutting, CNC machining, optical polishing, marking, coating, inspection, and packaging for US-market and global B2B projects.
Send the drawing, quantity, thickness, tolerance, surface requirement, coating target, and operating conditions for a feasibility review and project-specific quotation.
Send Your Sapphire Blank DrawingNeed 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
