OEM/ODM Optical Quartz Window Supplier & Exporter for the Geneva Market
Precision-engineered synthetic fused silica (JGS1), flame-fused quartz (JGS2), and infrared grade optics customized to sub-nanometer tolerances for Geneva’s photonics laboratories, CERN physics experiments, and horological micro-machining centers.
99.99%
Silicon Dioxide (SiO₂) Purity
14,271m²
SGS-Verified Manufacturing Facility
λ/10@633nm
Transmitted Wavefront Precision
185-3500nm
Spectral Transmission Coverage
Export-Certified Inventory
High-Precision Optical Windows & Specialized Quartz Assemblies
Manufactured under strict ISO 9001 and SGS onsite-audited quality regimes, our core optical product line delivers the laser damage resistance, mechanical stability, and thermal inertia demanded by Greater Geneva's high-tech industrial base.
Synthesized via chemical vapor deposition to achieve bubble-free deep-UV transparency down to 185 nm. Designed for photolithography, UV curing, and high-energy physics chambers.
Exceptional thermal shock resistance and broad-spectrum transparency. Custom engineered for analytical digestion vessels and observation sight glasses in biomedical reactors.
Continuous Temp: Up to 1100 °CShort-term Peak: 1300 °CThermal Expansion: 5.5 × 10⁻⁷ / °C
Doped or clear high-purity fused silica coils bent and flame-polished for laser cavity excitation lamps, dermatology equipment, and specialized biochemical flow-reactors.
Spectral Filtering: UV Cut-off availableDimensional Tolerance: ±0.1 mm precisionService: Full bending, cutting, sealing
Precision slotted carrier cassettes fabricated via diamond CNC milling and flame welding. Prevents trace metal contamination during silicon, sapphire, and GaN wafer annealing.
Metallic Impurities: Total < 20 ppmSlot Pitch Accuracy: ±0.05 mmResistance: Zero warping at 1150 °C
Engineering Quartz Solutions for the Geneva Innovation Ecosystem
Geneva stands as Europe's focal point for experimental subatomic physics, precision luxury micro-mechanics, and bio-photonic diagnostics. Supplying this demanding market requires more than standard catalog distribution; it demands deep material science customization and unyielding quality verification.
CERN & High-Energy Subatomic Research
Situated in Meyrin and straddling the Franco-Swiss border, the European Organization for Nuclear Research (CERN) demands ultra-high vacuum (UHV) viewports and optical windows that operate under intense ionizing radiation fields.
Our JGS1 Synthetic Fused Silica windows feature extremely low trace-metal impurities (Fe < 0.2 ppm, Al < 5 ppm), preventing the formation of radiation-induced absorption color centers under continuous particle beam and synchrotron exposure.
Hydroxyl (OH) content tailored for DUV radiation hardness
Plan-les-Ouates Luxury Watchmaking Photonics
Geneva's prestigious horological sector relies increasingly on ultrafast femtosecond and picosecond lasers to micro-machine watch bridges, escapements, and sapphire crystals without thermal damage.
We manufacture laser debris shield plates and laser cavity flow tubes with low-scatter optical finishes (surface roughness Ra < 0.5 nm) that withstand gigawatt-level peak power pulses without thermal lensing.
Scratch-Dig ratings down to 10-5 for critical optical beam paths
Campus Biotech & Lake Geneva Life Sciences
In the health-valley belt between Geneva and Lausanne, biomedical instrument OEMs develop next-generation flow cytometers, automated capillary sequencers, and Raman spectrometers.
Our customized 96-well quartz microplates and flow cuvettes offer near-zero autofluorescence in the ultraviolet and visible spectra, allowing researchers to measure picomolar dye concentrations without background optical noise.
Autoclave sterilizable up to 121 °C without surface degradation
Chemically inert against aggressive solvents and biological acids
Material Physics
Selecting the Correct Optical Quartz Substrate
In the precision Swiss procurement framework, specifying simply "quartz glass" invites risk. Fused quartz and fused silica differ fundamentally in raw material derivation, manufacturing method, hydroxyl (OH⁻) content, and spectral transmission.
Direct-from-Source Quality Control: The Lianyungang Advantage
Located in Lianyungang, Jiangsu—the premier raw silica cluster representing over 70% of high-purity quartz refining capacity—Lovri Quartz operates a vertically integrated 14,271 m² production facility verified onsite by SGS Group.
Raw Material Acid Purification
We do not procure unverified commercial glass tubes. We cut, crush, and perform deep multi-stage acid pickling on raw quartz lumps in-house, eliminating iron, potassium, and sodium down to sub-ppm levels.
5-Axis CNC Precision Machining
Equipped with specialized high-speed diamond CNC milling centers, we execute complex geometries, micro-step milling, precision through-holes, and custom edge chamfering down to ±0.005 mm mechanical tolerances.
Polarization Stress Annealing
Residual structural stress leads to sudden fracturing under laser radiation or thermal gradients. Every production batch passes through computer-controlled annealing ovens followed by 100% polariscope stress inspection.
Cleanroom Export Packaging
To meet the standards of Swiss laboratories, parts are ultrasonically cleaned, vacuum-sealed in static-dissipative cleanroom film, and encased in custom shock-absorbing foam within reinforced international freight crates.
Buyer Knowledge Base
Geneva & Swiss B2B Procurement FAQ
Comprehensive regulatory, logistical, and technical insights designed for purchasing agents and technical leads across the Canton of Geneva and the wider Romandie region.
What are the import procedures, tariffs, and customs requirements for shipping optical quartz from China into Geneva, Switzerland?
Shipments entering Geneva Airport (GVA) or via customs hubs in Meyrin / Bardonnex fall under the Sino-Swiss Free Trade Agreement (FTA). Under this agreement, high-purity optical fused quartz windows and laboratory apparatus under HS Codes 7002.31 (tubes of fused quartz) and 7006.00 / 9001.90 (optical elements) qualify for preferential zero or reduced import tariff rates when accompanied by a valid Certificate of Origin (Form EUR.1 / FTA Origin Declaration). Our export documentation team prepares commercial invoices, packing lists with net quartz weights, and exact dual-use non-military compliance declarations for smooth customs clearance through the Swiss Federal Office for Customs and Border Security (BAZG).
Can you produce optical windows according to Swiss / ISO 10110 optical drawing specifications?
Yes. We routinely fabricate from drawings defined under the ISO 10110 optical drawings standard, which is widely utilized across Swiss engineering groups. We can interpret and execute callouts for stress birefringence (0/), material bubbles and inclusions (1/), surface homogeneity and striae (2/), transmitted wavefront error (3/), surface imperfections/scratch-dig (5/), and surface texture/roughness (8/). Every customized optical window order can be accompanied by an inspection protocol, including interferometer wavefront maps (Zygo-compatible) and spectrophotometer transmission scans.
What is the minimum order quantity (MOQ) for custom-dimensioned JGS1 viewports or flow cells?
We operate a flexible production schedule suited for Geneva's research and prototyping needs. For bespoke CNC-machined prototypes, custom flanges, and specialty UV windows, our MOQ starts at just 1 to 5 pieces. Once validation is completed by your engineering team, we transition directly into serial batch manufacturing with tiered volume pricing, enabling seamless scaling from lab experimentation to full-scale commercial instrument assembly.
How does fused quartz outperform borosilicate and sapphire in Geneva's laser micro-machining environments?
While sapphire offers superior mechanical hardness, its high refractive index and significant birefringence create polarization distortions and optical reflections. Borosilicate glass, while economical, possesses a thermal expansion coefficient nearly six times higher than fused quartz, causing severe thermal lensing and cracking under high-power laser loads. Fused quartz (SiO₂ ≥ 99.99%) provides an ultralow coefficient of thermal expansion (5.5 × 10⁻⁷ / °C), near-zero birefringence, outstanding laser damage threshold (LIDT > 10 J/cm²), and deep UV transparency down to 185 nm, making it the superior substrate for precision beam delivery.
What are typical air freight delivery lead times to Geneva?
For rapid turnaround prototyping, standard CNC cutting, polishing, and annealing require 7 to 12 working days depending on optical tolerance stringency. International priority air express (via DHL, FedEx, or UPS direct to Geneva, Lausanne, or Neuchâtel) typically requires 3 to 5 business days from our factory dispatch to your receiving dock. Comprehensive tracking details and customs paperwork are forwarded electronically in advance to prevent clearance delays.
Are test reports and material compliance certificates provided with each shipment?
Yes. Every export lot comes with a Certificate of Conformity (CoC) detailing the material grade (JGS1, JGS2, JGS3, or opaque), purity analysis (≥99.99% SiO₂), RoHS compliance declaration, and dimensional inspection record. Upon request prior to fabrication, we also provide UV-Vis-NIR spectrophotometer transmission curves, polarization stress birefringence certificates, and surface roughness interferometry data.
Ready to Engineer Your Optical Quartz Windows?
Whether you require standard laser debris shields, radiation-hardened DUV research viewports for CERN projects, or complex 5-axis CNC machined quartz jigs, our engineering team in Lianyungang is ready to assist your design review and provide a comprehensive quotation.
