Drawing-Based Geometry
Round, square, rectangular, ring, tube and non-standard profiles can be reviewed from 2D drawings or 3D files.
High-Purity Fused Silica Windows & Custom Optical Components
- FOB Price
US $5.691 - 99 piece
US $3.26100 - 999 piece
US $2.781000 - 4999 piece
US $1.615000 - 9999 piece
US $0.3210000 - 99999 piece
- group name
- Custom Fused Quartz Windows
- Min Order
- 1 piece
- brand name
- FELIX GLASS optical glass Manufacturing base
- model
- FE-RLSY-CUSTOM
- Nearest port for product export
- Shenzhen, Guangzhou
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES
- Acceptable payment methods
- T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Westem Union, Cash, Escrow
- update time
- Wed, 28 Oct 2026 14:14:29 GMT
Paramtents
Material Optical-grade fused quartz / fused silica
Grade JGS1, JGS2, JGS3 or equivalent by application
Shape Round, square, rectangular or custom geometry
Dimension Custom to drawing; size confirmed by engineering review
Thickness Custom thickness according to optical and mechanical requirements
Dimensional Tolerance Typical ±0.01 mm; tighter tolerances subject to feasibility review
Surface Quality 60-40 standard; 40-20 and 20-10 available by project
Surface Flatness λ/4 typical; up to λ/10 depending on size and aperture
Parallelism ≤3 arc min typical; tighter specification available by review
Clear Aperture Typically ≥90%; customizable
Surface Finish/Edge Treatment Double-side optical polishing available/Fine ground, polished, chamfered or beveled
UV Transmission Grade, thickness, wavelength and coating dependent
Coating Uncoated, UV AR, VIS AR, NIR AR or custom BBAR
Application UV systems, lasers, sensors, semiconductor and industrial optics
Customization OEM / drawing-based prototype and volume production
Packging & Delivery
- 50cm x30cm x20cm
-
Min Order1 piece
Briefing
fused silica windows, plates, discs and profiles for UV curing, laser delivery, analytical instruments by Felix Glass
Detailed
Felix Glass manufactures synthetic fused silica windows, plates, discs and profiles for UV curing, laser delivery, analytical instruments and high-temperature systems. Available in UV-grade, laser-grade, scratch-dig up to 10-5, λ/10 flatness, with optional UV AR / BBAR coating. Prototype & volume orders supported. The values below are planning ranges rather than automatic acceptance limits. Final capability depends on geometry, aperture, edge condition, coating and inspection requirements. Surface quality, flatness, parallelism, wedge, clear aperture and edge treatment can be defined by application. Specify wavelength, source type, fluence or power density, pulse conditions, angle of incidence and transmission target. Dimensional, visual, flatness and coating inspection records can be included when stated in the purchase specification. Use the table as an RFQ checklist. Tighter requirements may affect yield, inspection time, lead time and unit cost. Confirm material, drawing revision, wavelength, environment, quantity and critical characteristics. Select stock and machining allowance based on finished geometry and process risk. Cut, grind, drill and profile the component using a route suited to fused silica. Develop specified surfaces while controlling edge condition, wedge and clear aperture. Apply approved coating when required and inspect agreed dimensional and optical characteristics. Separate polished parts and package them according to handling and cleanliness needs. ISO 9001 quality-system documentation and RoHS or other compliance support may be supplied when applicable to the selected material and process. Certification scope and report format must be confirmed during quotation. Felix Glass Co., Limited supports prototype evaluation and repeat production through drawing review, machining, polishing, optional coating and inspection coordination. Procurement teams should request the exact facility, process and certification evidence needed for supplier qualification. Feasibility feedback can identify missing tolerances, coating inputs and inspection definitions before order placement. Blank preparation, CNC shaping, grinding, polishing, coating and final inspection are planned around the approved specification. Inspection criteria and approved drawing revisions can be carried into repeat production planning. For an engineering quotation, send the drawing, material grade, wavelength band, source type, optical aperture, tolerance priorities, surface quality, flatness, coating target, inspection standard, quantity and delivery schedule. For laser service, include available beam and pulse information so the component and coating can be reviewed for the intended conditions. Related capability pages: Sapphire Hub, Custom Sapphire Window Manufacturer, BK7 Optical Glass Factory Supplier, Laser and UV Product Solutions, and High-Temperature Furnace Components. Provide a controlled drawing, material grade, dimensions, tolerances, surface quality, flatness, coating, wavelength, quantity, inspection needs and requested delivery date. The terms are sometimes used broadly, but synthetic fused silica and naturally sourced fused quartz can differ in purity and spectral behavior. State the required grade or optical band so material can be selected correctly. Suitable grades are commonly evaluated for UV systems, but the decision depends on wavelength, thickness, defects, polish, coating, power or fluence, pulse conditions and service environment. Surface-quality requirements such as 20-10 or 10-5 scratch-dig can be reviewed. The applicable inspection standard, clear aperture and performance requirement should be stated on the drawing. Lambda/4 is a common project target and Lambda/10 may be reviewed for suitable sizes and geometries. Always define the reference wavelength, clear aperture and measurement condition. UV AR, narrowband AR and broadband designs can be evaluated. Provide wavelength range, angle of incidence, polarization, environment and durability requirements. Windows, plates, discs, rings, tubes and drawing-based profiles can be reviewed, including holes, slots, bevels and defined edge conditions. We support low-volume prototype orders starting from 1 piece. Final MOQ, price and lead time depend on geometry, coating and inspection requirements. Contact us for a quick estimate. Lead time is quoted after material availability, machining complexity, coating schedule, inspection plan and quantity are reviewed. Available documentation may include dimensional and visual inspection records, material certificates, coating data and applicable compliance support. Specify required document names and acceptance criteria before order placement. Send your DWG/STEP drawing, or simply share wavelength, dimension, scratch-dig & quantity. We reply within 24 working hours, including prototype lead time and price guidance.
UV & Laser Grade Fused Silica Optics
High-Purity Fused Silica Windows & Custom Optical Components
Engineering fit
What Buyers Can Specify
Optical Surface Control
UV and Laser Review
Inspection Documentation
Material properties
Why Fused Silica Is Selected for UV and Thermal Systems
Property
Typical Engineering Reference
Selection Relevance
Composition
High-purity silicon dioxide; grade dependent
Supports optical and thermal stability requirements.
Thermal expansion
Low compared with common optical glasses
Reduces dimensional change during thermal cycling.
UV transmission
Depends on synthetic or natural grade, thickness and surface condition
Material certificates and transmission data should match the working band.
Thermal shock behavior
Suitable for many rapid-temperature-change systems when correctly designed
Part geometry, mounting stress and edge finish remain important.
Chemical behavior
Stable against many chemicals; application compatibility must be checked
Cleaning chemistry and service environment should be supplied for review.
Technical data
Custom Fused Silica Specification Planning
Field
Typical Options
Information Needed for Quote
Material
UV-grade synthetic fused silica; fused quartz grades by request
Grade, certificate requirement and working wavelength
Dimension
Custom diameter, length, width, thickness and profile
Drawing with datums, clear aperture and edge definition
Tolerance
Typical dimensional tolerance around +/-0.01 mm; tighter values by review
Critical and non-critical dimensions identified separately
Surface Quality
Common project ranges from 60-40 to 10-5 scratch-dig
Inspection standard and cosmetic zone
Surface Flatness
Lambda/4 typical; Lambda/10 may be reviewed for suitable aperture and geometry
Reference wavelength, aperture and test setup
UV Laser Transmission
Grade, thickness, polish and coating dependent
Wavelength band, AOI, polarization and transmission target
Coating
Uncoated, UV AR, narrowband AR or BBAR subject to design review
Band, AOI, polarization, environment and durability test
MOQ
Prototype and production quantities supported subject to process route
Prototype quantity, annual demand and delivery schedule
Lead Time
Confirmed after material, machining, coating and inspection review
Required delivery date and approval sequence
Manufacturing process
From Drawing Review to Protected Packing
Specification Review
Blank Preparation
CNC Shaping
Optical Polishing
Coating and Inspection
Clean Packing
Application table
Fused Silica Parts by Equipment Requirement
Application
Common Part Types
Buyer Inputs
Engineering Focus
UV curing and exposure
Windows, plates, covers
UV band, irradiance, heat load, cleaning method
Transmission, solarization behavior, thermal mounting
Laser beam delivery
Windows, discs, protective plates
Wavelength, CW or pulsed source, beam diameter, fluence
Material grade, surface quality, coating and damage-risk review
Analytical instruments
Cells, windows, plates, spacers
Optical path, chemistry, detector range, sealing design
Path consistency, cleanliness and chemical compatibility
High-temperature furnace systems
Observation windows, tubes, shields
Temperature profile, pressure, atmosphere, mounting method
Thermal stress, edge finish and fixture clearance
Semiconductor and research equipment
Rings, carriers, plates, special parts
Cleanliness, geometry, process chemistry, inspection plan
Contamination control, repeatability and documentation
Quality inspection
Inspection Scope Aligned to the Drawing
Factory capability
Support for Optical Engineers and Procurement Teams
Engineering Review
Process Coordination
Prototype to Repeat Order
Laser and UV sourcing
Information That Improves RFQ Accuracy
Related products
Compare Adjacent Optical Component Options
BK7 Optical Glass ComponentsFor visible and near-IR systems where BK7 is a suitable substrate.
Custom Sapphire WindowsFor high-hardness and demanding environmental protection.
IR Sapphire WindowsFor protected EO/IR transmission applications.
High-Pressure Sapphire Sight GlassFor pressure-resistant viewing designs subject to engineering review.
Furnace Sapphire Observation WindowsFor high-temperature observation where sapphire is preferred.
Custom Sapphire PrismsFor precision optical testing and instrument assemblies.
Engineering articles
Material and Specification Guidance
Sapphire vs Fused Silica for High-Temperature SensorsCompare thermal, optical, mechanical and sourcing criteria.
AR and BBAR Coating SelectionDefine wavelength, AOI and performance inputs before RFQ.
Optical Glass Selection for Laser SystemsCompare fused silica, BK7, borosilicate and sapphire.
How Flatness Tolerance Is ControlledUnderstand polishing, fixturing and interferometer inspection considerations.
Engineering FAQ
Fused Silica Optical Parts FAQ
What information is needed to quote a fused silica optical part?
What is the difference between fused silica and fused quartz?
Can fused silica windows be used for UV lasers?
Can you supply laser-grade surface quality?
What flatness can be specified?
Are UV AR and broadband coatings available?
What shapes can be manufactured?
What is the MOQ for custom fused silica parts?
How long is production lead time?
What quality and certification documents can be supplied?
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