Question 1

Customization and manufacturing capabilities overview

Accepted Answer

Yes, we provide full custom optical manufacturing services including CNC machining, optical polishing, drawing review, and prototyping. We support OEM and ODM projects from design optimization to mass production, ensuring precise tolerance control and consistent quality.We offer professional custom optical manufacturing solutions for global clients seeking high-precision optical components, including full-service OEM and ODM optical fabrication, CNC optical machining, ultra-precision optical polishing, technical drawing review, custom optical prototyping, and mass production support. As an experienced optical manufacturer, we specialize in custom-made optical windows, lenses, prisms, glass plates, infrared optical components, laser optics, and precision optical parts used in medical devices, automotive LiDAR, aerospace systems, industrial inspection, and optical instrumentation industries. Our full-cycle custom optical manufacturing process covers every essential stage from design consultation, drawing verification, optical structure optimization, material selection, precision processing, surface polishing, optical coating, quality inspection to final bulk production. We strictly control dimensional tolerance, surface quality, flatness, parallelism, transmittance, and optical uniformity to ensure stable and reliable optical performance for all customized optical products. We support customized optical manufacturing based on customer drawings, custom parameters, or application requirements. Whether clients require small-batch optical prototyping for project testing or large-volume OEM optical mass production, we deliver consistent high quality, precise specifications, and stable lead time. With advanced optical processing equipment and professional optical engineering teams, we provide reliable one-stop custom optical fabrication services for worldwide industrial and commercial optical buyers.

Question 2

Explanation of different optical coating functions.

Accepted Answer

AR coatings reduce surface reflection and increase light transmission. AG coatings diffuse reflected light to reduce glare, improving readability under strong lighting. AF coatings create a hydrophobic surface that resists fingerprints, oil, and contamination. These coatings are often combined for enhanced performance.Professional optical coatings including AR coating, AG coating, and AF coating are widely applied on precision optical glass and optical components to upgrade optical performance, visual experience, and surface durability for industrial, commercial, and consumer optical devices. AR coating, also known as anti-reflection coating, is designed to effectively reduce unwanted surface reflection on optical glass surfaces. By minimizing reflective light loss, AR optical coating significantly increases overall light transmittance, delivering clearer optical imaging, higher light utilization rate, and improved contrast. This anti-reflection solution is essential for high-precision lenses, display glass, optical windows, and laser optical parts that require ultra-high light transmission and low reflection performance. AG coating, or anti-glare coating, features a special micro-structure surface that diffuses incident reflected light evenly instead of generating concentrated harsh glare. The anti-glare coating greatly reduces strong light reflection and screen dazzling problems under bright lighting environments such as sunlight and indoor high-bright lamps. With optimized diffuse reflection performance, AG coated glass greatly improves screen readability, viewing comfort, and visual stability, making it ideal for display screens, touch panels, instrument panels, and outdoor optical display equipment. AF coating, short for anti-fingerprint coating, forms a smooth and dense hydrophobic and oleophobic protective film on the glass surface. The advanced anti-fingerprint surface effectively resists fingerprints, oil stains, dust, water droplets, and daily contamination. It greatly simplifies surface cleaning, maintains long-term surface smoothness and transparency, and enhances the service life and appearance quality of optical glass components. To achieve comprehensive and upgraded optical performance, multi-layer composite coating combinations of AR+AG, AR+AF, and AR+AG+AF are commonly customized. Combined optical coatings provide low reflection, anti-glare, high transmittance, anti-fingerprint, and anti-pollution advantages simultaneously, which perfectly meets high-standard requirements for medical displays, automotive optics, industrial touch screens, precision optical instruments, and outdoor optical equipment.

Question 3

Surface treatment options for display cover glass.

Accepted Answer

Display cover glass can be treated with AR (anti-reflective), AG (anti-glare), and AF (anti-fingerprint) coatings. These coatings improve visibility, reduce reflections, and prevent surface contamination, making them ideal for industrial, medical, and outdoor display applications.High-quality display cover glass can be professionally enhanced with multi-functional optical coatings, including AR anti-reflective coating, AG anti-glare coating, and AF anti-fingerprint coating, to deliver superior optical performance, excellent surface protection, and stable long-term display quality for various advanced display devices. AR anti-reflective coating effectively eliminates harmful surface reflection and minimizes light loss on the cover glass surface. By improving overall light transmittance and optimizing light transmission efficiency, AR coating significantly enhances display clarity, color reproduction, and screen contrast, ensuring sharp and vivid visual output even under complex lighting conditions. AG anti-glare coating features a precision micro-etched surface structure that uniformly diffuses harsh reflected light. This advanced anti-glare treatment eliminates dazzling glare, reduces mirror reflection effects, and greatly improves screen readability in bright environments such as direct sunlight, strong indoor lighting, and high-bright working scenarios. AG coated display cover glass effectively relieves visual fatigue and provides stable, comfortable viewing experience for long-time operation. AF anti-fingerprint coating forms a highly hydrophobic and oleophobic protective layer on the glass surface. The smooth nano-coating effectively repels fingerprints, water droplets, oil stains, dust, and daily surface contamination. It maintains a clean, smooth, and transparent glass surface at all times, reduces frequent cleaning maintenance, and greatly extends the service life of display cover panels. These professional optical coatings can be used individually or combined into AR+AG, AR+AF, and full AR+AG+AF composite coating solutions according to customer application requirements. With optimized visibility, ultra-low reflection, anti-glare performance, and excellent anti-pollution surface protection, coated display cover glass is perfectly suitable for industrial touch displays, medical equipment screens, outdoor terminal displays, automotive display panels, smart device screens, and high-precision optical display systems, providing reliable and high-performance cover glass solutions for commercial and industrial display applications.

Question 4

Advantages of sapphire and IR domes in extreme conditions.

Accepted Answer

Sapphire optical domes are used in aerospace and surveillance systems due to their exceptional hardness, scratch resistance, and optical clarity. They protect sensitive optical systems in harsh environments such as high pressure, high temperature, and outdoor exposure while maintaining excellent infrared transmission.Sapphire optical domes are premium-grade precision optical components widely adopted in high-end aerospace systems, military monitoring equipment, infrared surveillance systems, and outdoor optoelectronic detection devices, renowned for their extreme mechanical hardness, outstanding scratch resistance, superior structural stability, and ultra-high optical clarity across broad spectral ranges. Manufactured from high-purity synthetic sapphire material, sapphire domes feature excellent physical and chemical properties that far exceed ordinary optical glass. With exceptional surface hardness and powerful abrasion resistance, sapphire optical domes effectively resist surface scratches, particle erosion, and mechanical wear during long-term service, maintaining perfect surface finish and stable optical performance in rigorous working conditions. Designed as protective optical housings for sensitive optical sensors, infrared cameras, and precision imaging systems, sapphire optical domes provide reliable all-round protection for core optical modules in extremely harsh environments. They stably withstand extreme working conditions including high pressure impact, high-temperature radiation, low-temperature freezing, strong wind erosion, and long-term outdoor ultraviolet exposure, avoiding structural deformation, surface damage or optical performance attenuation caused by complex environmental factors. In addition to superior mechanical durability, sapphire domes deliver excellent infrared transmittance and stable spectral performance in the infrared band. With low optical loss and uniform light transmission characteristics, these optical domes ensure accurate infrared signal reception, clear imaging quality, and consistent detection sensitivity for surveillance and aerospace optical systems. Due to the perfect combination of ultra-hard mechanical performance, excellent environmental adaptability, and high infrared optical permeability, high-precision sapphire optical domes have become indispensable core protective components for aerospace optoelectronic equipment, night vision surveillance systems, outdoor monitoring devices, and high-precision industrial infrared detection systems.

Question 5

Guide for selecting optical materials based on wavelength and environment.

Accepted Answer

Optical material selection depends on wavelength range, thermal resistance, and application environment. BK7 is commonly used for visible optics, fused silica performs well in UV and high-temperature environments, sapphire offers extreme hardness and durability, while ZnSe and ZnS are ideal for infrared applications. Proper selection ensures optimal transmission and system performance.Professional optical material selection is a critical foundation for achieving ideal optical transmission efficiency, stable thermal performance, and long-term reliable system operation, which mainly depends on three core factors: working wavelength range, thermal resistance capability, and actual application environment. Different optical substrates feature unique spectral transmittance, mechanical strength, temperature resistance, and chemical stability, making customized material selection essential to match various optical system requirements and maximize overall equipment performance. BK7 optical glass is the most widely used standard optical material for visible light optical systems. Featuring excellent visible spectral transmittance, uniform optical performance, low bubble and impurity rate, and stable processing adaptability, BK7 glass is ideal for conventional visible optical lenses, optical windows, prisms, and general industrial optical components. With cost-effective performance and mature processing technology, BK7 remains the preferred material for standard visible-light optical applications. Fused silica, also known as quartz glass, delivers outstanding performance for ultraviolet (UV) applications and high-temperature working environments. It possesses excellent UV transmittance, extremely low thermal expansion coefficient, and superior high-temperature resistance. Fused silica optical components can maintain stable optical and structural performance under high heat, intense UV radiation, and rapid temperature changes, making them the optimal choice for UV optical instruments, laser systems, and high-temperature industrial optical equipment. Sapphire optical material stands out for its extreme surface hardness, exceptional scratch resistance, and outstanding mechanical durability. Compared with ordinary optical glass, sapphire features stronger pressure resistance, impact resistance, and chemical corrosion resistance. It performs stably in severe environments such as high pressure, strong friction, and long-term outdoor exposure, widely applied in high-end aerospace, surveillance, and precision protective optical systems. For infrared optical systems requiring long-wave infrared transmission, ZnSe (Zinc Selenide) and ZnS (Zinc Sulfide) are the most professional and reliable infrared optical materials. Both materials provide excellent infrared spectral transmittance with low optical absorption and uniform infrared imaging performance. They are extensively utilized in infrared imaging devices, thermal detection systems, laser infrared equipment, and military night vision optical components. Accurate and reasonable optical material selection ensures optimized light transmission, minimized optical loss, stable thermal resistance, and consistent long-term system performance, helping customers achieve higher precision, better stability, and longer service life for customized optical projects

Question 6

Felix Glass is a precision optical glass manufacturer providing OEM/ODM custom optical components including lenses, prisms, domes, filters, and coated glass for global industrial applications.

Accepted Answer

Felix Glass is a professional manufacturer specializing in custom optical glass components and precision optical engineering solutions. We provide OEM and ODM services for global industrial clients requiring high-performance optical systems.Our core product portfolio includes optical lenses (plano-convex, aspheric, cylindrical), precision optical prisms, sapphire and infrared optical domes, bandpass and IR filters, and display cover glass with advanced AR (anti-reflective), AG (anti-glare), and AF (anti-fingerprint) coatings.We support full-process manufacturing capabilities including optical material selection (BK7, fused silica, sapphire, ZnSe, ZnS), CNC machining, precision polishing, coating deposition, prototyping, and mass production. Every component is manufactured under strict dimensional, surface quality, and optical performance control standards.Our solutions are widely used in medical imaging systems, aerospace and defense optics, machine vision equipment, laser systems, automotive sensing modules, and scientific instruments. In addition to manufacturing, we provide engineering support for optical design optimization, material selection guidance, and manufacturability evaluation (DFM), helping customers improve performance while reducing production risk and cost.

Question 7

Felix Glass provides flexible lead times for optical glass orders: standard products ship in 7–15 working days, custom orders match your schedule, with global shipping options.

Accepted Answer

As a reliable optical glass supplier, we understand the importance of on-time delivery for your projects, and we offer flexible lead times and shipping terms to meet your requirements. Lead Times: - Standard Products: For our in-stock optical glass domes, lenses and windows, we typically ship within 7-15 working days after order confirmation and payment.- Custom Orders: Lead times for custom optical glass components depend on complexity, size and order volume. Our team will provide a detailed production schedule during the quotation process, with typical lead times ranging from 20-45 working days. We also offer expedited production services for urgent projects, subject to availability. Shipping Terms:We support a variety of global shipping options to meet your delivery timeline and budget: - Express Courier: For small orders and prototypes, we ship via DHL, FedEx or UPS, with delivery times of 3-7 days to most countries.- Air Freight: For medium-sized orders, we offer air freight shipping with delivery times of 7-14 days.- Sea Freight: For large-volume orders, we provide sea freight shipping with delivery times of 30-45 days, offering the most cost-effective solution. We can also work with your preferred logistics provider and offer flexible Incoterms (FOB, CIF, DDP, etc.) to simplify the shipping process. Our sales team will provide you with tracking information once your order is shipped, so you can monitor the delivery status in real time. At Felix Glass, we are committed to reliable, on-time delivery, and we will keep you updated on the progress of your order every step of the way.

Question 8

Felix Glass provides full OEM/ODM custom optical glass services: design consultation, prototype development, mass production, and after-sales support for global optical equipment manufacturers

Accepted Answer

Absolutely. As a customer-centric optical glass supplier, we specialize in providing turnkey OEM and ODM custom optical glass solutions for global optical equipment manufacturers, engineering companies and research institutions. Our custom service process includes: 1. Requirement Consultation: Our optical engineering team works closely with you to understand your application, performance requirements, budget and timeline, providing professional recommendations on material selection, design optimization and coating solutions.2. Design & Prototyping: We develop custom designs based on your specifications, using advanced optical simulation software to verify performance. We then produce prototypes for your testing and validation, with quick turnaround times for small-batch trial runs.3. Mass Production: Once the prototype is approved, we scale up production using our high-precision manufacturing equipment, maintaining consistent quality and tight tolerances across large orders. We offer flexible production volumes, from small batches to high-volume runs.4. Quality Assurance & Delivery: All custom optical glass products undergo the same rigorous quality testing as our standard products. We provide full inspection reports and coordinate global shipping, with flexible delivery terms to meet your project schedule. Whether you need a custom optical dome for a new surveillance camera, a specialized lens for a medical device, or a complete optical system component, Felix Glass can provide a tailored solution to meet your exact needs.

Question 9

Felix Glass is an ISO-certified optical glass supplier, implementing strict quality management systems throughout the manufacturing process, from raw material inspection to final product testing.

Accepted Answer

Yes, Felix Glass is an ISO 9001:2015 certified optical glass supplier, committed to delivering consistent, high-quality optical products to our customers worldwide. Our ISO certification means that every stage of our manufacturing process adheres to internationally recognized quality management standards: 1. Raw Material Control: We only source optical-grade raw materials from qualified suppliers, with incoming inspection for purity, homogeneity and optical properties to ensure batch-to-batch consistency.2. Process Control: Our production lines follow standardized operating procedures (SOPs) for grinding, polishing, coating and assembly, with in-process inspections at every critical step to prevent defects.3. Quality Testing: Every optical glass product undergoes comprehensive testing before shipment, including dimensional tolerance checks, surface quality inspection, optical transmittance measurement, coating performance verification and environmental durability testing.4. Continuous Improvement: Our quality management system includes regular audits, corrective action processes and customer feedback loops to continuously improve our products and services. As an ISO-certified optical glass supplier, we provide full inspection reports, material certificates and quality documentation upon request, giving you complete confidence in the reliability and performance of our products.

Question 10

Felix Glass offers full OEM/ODM custom optical glass services, including design consultation, prototyping, mass production, and after-sales support for global optical equipment manufacturers.

Accepted Answer

As a leading optical glass supplier with over years of manufacturing experience, Felix Glass offers a comprehensive portfolio of high-precision optical components tailored to meet the diverse needs of global industries. Our core product range includes: - Optical domes: Precision domes made from BK7/K9 glass, sapphire and fused silica, with custom sizes, coatings and tolerances for surveillance, underwater, aerospace and industrial use.- Optical lenses: Spherical, aspherical and cylindrical lenses for imaging, illumination and laser applications, available in various materials and coatings.- Optical windows: Flat, wedged and protective windows with anti-reflective, high-reflective and other specialized coatings for sensors, lasers and optical systems.- Prisms and beam splitters: Right-angle prisms, penta prisms, roof prisms and custom beam splitters for light path manipulation in optical instruments.- Custom optical components: We support OEM/ODM manufacturing of non-standard optical parts according to customer drawings, samples and technical specifications, including complex shapes, special materials and unique coating requirements. All our optical glass products are manufactured under strict quality control standards, with raw material selection, precision processing, surface polishing, coating application and final inspection completed in-house. We serve customers in aerospace, defense, medical, life sciences, industrial automation and consumer optics, providing reliable, high-performance optical solutions.

Question 11

echnical consulting services for optical projects.

Accepted Answer

Our custom precision optical components are extensively engineered and supplied for diversified high-end industries, covering medical diagnostic devices, aerospace optoelectronic systems, automotive LiDAR & optical sensors, industrial laser processing equipment, automated machine vision systems, and laboratory-grade scientific measuring instruments globally. Every industry field poses distinct working conditions, wavelength demands and environmental challenges, so customized optical substrate picking and functional coating matching become the core of stable product performance. For medical device optics such as endoscope lenses, medical display cover glass and detection optical windows, we select biocompatible optical glass, medical-grade fused silica or sapphire substrates, paired with customized AR/AG/AF composite coatings to guarantee high light transmittance, clear imaging and stain resistance under long-term sterile working environments. In rigorous aerospace systems exposed to drastic temperature fluctuation, high altitude pressure and UV radiation, high-hardness sapphire, high-temperature resistant fused silica and special infrared crystalline materials are prioritized. These raw materials cooperate with high-durability anti-abrasion optical coatings to withstand harsh outer-space ambient erosion and keep consistent optical transmission. Automotive optical sensors including LiDAR domes, automotive display protective glass and vehicle infrared sensing windows demand outstanding temperature shock resistance and anti-glare property. We configure BK7, sapphire and infrared crystalline materials alongside tailored functional coatings to adapt to outdoor temperature variation, sunlight irradiation and complex road operating environments. Industrial laser equipment optics including laser windows and focusing lenses mainly adopt high-purity fused silica, ZnSe and ZnS infrared crystals matched with laser anti-reflection coatings, lowering laser energy loss and improving laser transmission efficiency during continuous high-power laser operation. Machine vision optical lenses and protective windows for automated inspection need stable visible light transmission and anti-dazzle performance; we mostly deploy premium BK7 optical glass with professional AR or AG coating solutions to eliminate ambient light interference and boost detection accuracy for automated production lines. Various precision optical parts for scientific laboratory instruments use customized BK7, fused silica and infrared crystals with precision optical coatings, satisfying strict testing standards of spectral transmission and dimensional tolerance in scientific research scenarios. Targeted material selection plus personalized coating configuration according to specific application scenarios effectively maximizes light transmittance, optimizes optical stability and extends component service lifespan, enabling our optical parts to deliver reliable optimal performance across all above mainstream application fields.Yes, we offer engineering support including material selection, optical structure optimization, coating design advice, and manufacturability evaluation (DFM). This helps clients improve performance while reducing production risks and costs.

Question 12

We offer flexible MOQ and sample production for optical components with detailed quotations based on drawings and technical specifications.

Accepted Answer

A:We implement premium industrial-grade multi-layer packaging solutions for all precision optical glass components, including BK7 optical glass, fused silica windows, sapphire optical domes, AR/AG/AF coated display cover glass, and ZnSe/ZnS infrared optical parts. All packaging procedures adopt professional shock-resistant, anti-static, and dustproof materials exclusively customized for high-precision optical products. Each optical component is individually wrapped with anti-scratch protective film to isolate dust and friction, then fixed with high-density EVA shockproof lining to eliminate vibration displacement during transportation. For bulk orders and high-value optical components, we apply thick reinforced plywood wooden cases to achieve anti-collision, anti-pressure, and drop-resistant protection, effectively preventing edge chipping, surface scratches, coating damage, and static contamination. Our strict optical packaging standards far exceed ordinary industry packaging levels, ensuring zero damage rate for long-distance international transit. To accommodate diverse customer delivery requirements, we provide full-scene global shipping services covering international express, air freight, and sea freight logistics. Small-batch samples and urgent prototype orders can be delivered via fast international express. Medium-batch production orders support stable and efficient air freight with short lead time. For large-volume mass production orders, cost-effective sea freight solutions are available for global transportation. Our logistics coverage includes Europe, North America, Southeast Asia, Oceania, and other mainstream industrial regions, supporting door-to-door and port-to-port global delivery. In addition to safe packaging and flexible global shipping solutions, we provide complete one-stop export documentation support for all international clients. Our professional foreign trade team prepares full standard export documents, including commercial invoices, packing lists, certificates of origin, and customs clearance documents. Comprehensive document support helps overseas buyers complete customs clearance efficiently, avoid customs delays, and reduce additional import costs, delivering a reliable, worry-free, and professional purchasing experience for global optical component importers.

Question 13

Optical manufacturing cost depends on material, precision, coating complexity, and order volume. Larger batches reduce unit cost significantly.

Accepted Answer

A:The manufacturing cost of custom precision optical components is determined by multiple professional industrial factors, including optical material grade, dimensional tolerance precision, surface polishing standard, optical coating process, order batch volume, and special customized processing requirements. Understanding these core pricing factors helps global buyers optimize design, control budget, and select the most cost-effective optical solutions for medical, automotive, aerospace, laser, and machine vision applications. First, optical raw material selection is the most fundamental factor affecting production cost. Standard optical substrates such as BK7 optical glass and common fused silica feature stable pricing and cost advantages for general visible and ultraviolet optical systems. In contrast, high-performance materials including high-purity fused silica, synthetic sapphire, ZnSe, and ZnS infrared crystalline materials require higher raw material investment due to their unique physical properties, extreme hardness, high-temperature resistance, and specialized infrared transmittance performance, significantly increasing overall manufacturing costs. Second, tolerance accuracy and surface quality standards directly determine processing difficulty and production expenses. Conventional loose-tolerance optical parts require only basic CNC machining and ordinary polishing procedures. However, ultra-precision optical components with strict dimensional tolerance, high flatness, parallelism, and low surface scratch grades demand repeated fine grinding, ultra-precision optical polishing, and full-item professional inspection. Higher precision standards extend production cycles, consume more equipment resources, and greatly improve manufacturing costs. Third, optical coating types and coating layers bring obvious price differences. Basic single-layer AR anti-reflection coating offers cost-effective performance for regular optical products. In comparison, multi-layer composite coatings such as AR+AG, AR+AF, and full AR+AG+AF coating, as well as customized high-transmission laser coating and infrared optical coating, require advanced vacuum coating equipment, strict environment control, and longer processing time, resulting in higher technical and production costs. Fourth, order quantity directly affects unit price. Large-batch mass production effectively averages fixed costs such as fixture setup, drawing DFM evaluation, and machine debugging, achieving lower unit manufacturing cost. Small-batch prototype orders and customized sample production retain relatively higher unit cost due to independent process setup and low material utilization rate. Additionally, special customized requirements including special edge chamfering, laser marking, ultra-clean cleaning, high-standard packaging, and strict quality testing reports will further optimize product performance while adding corresponding manufacturing costs.

Question 14

All optical components undergo strict quality control including dimensional inspection, coating testing, and material verification with certification reports.

Accepted Answer

A:We build a full-process closed-loop quality control system covering raw material incoming inspection, in-process production monitoring, finished-product testing and pre-shipment recheck to guarantee consistent quality for BK7, fused silica, sapphire, ZnSe, ZnS, AR/AG/AF coated display cover glass and all custom precision optical components, complying with international industrial optical inspection standards for aerospace, medical, automotive sensor, laser and machine vision industries. Before production, our QC team strictly audits incoming optical blank materials by checking internal bubble, impurity, raw material spectral transmittance and material uniformity, eliminating defective substrates to avoid hidden quality risks from the source. During production, every core working procedure including CNC machining, fine grinding, ultra-precision optical polishing and vacuum optical coating is tracked with real-time process inspection. Technicians spot-check dimensional tolerance, edge integrity and surface finish after each working step, timely correcting abnormal processing parameters to prevent batch defective goods. After finishing polishing and functional coating, finished optical glass undergoes comprehensive laboratory testing with professional optical testing equipment. Key inspected items include surface scratch grade, flatness, parallelism, spectral transmittance, coating adhesion and anti-fingerprint performance for AF-coated products. High-spec parts for aerospace and infrared systems will receive extra environmental reliability tests such as temperature shock and humidity resistance to verify long-term stability under harsh working conditions. Prior to packaging and global shipment, our final QC re-inspects appearance and specification one by one again. Any unqualified optical glass will be separated and reworked instead of being delivered. Our systematic multi-stage quality management effectively stabilizes product yield, minimizes defect rate and delivers reliable certified optical glass to worldwide OEM and ODM purchasers.

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A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.