The Hong Kong Standards And Testing Centre Ltd (STC)

Weprovide high-quality testing services for sunglasses and sun glare filters. Our testing standards meet the EU directive requirements, and wehelp you to develop business in EU markets. Our test scope includes blue-light absorption, UV absorption, scattered lights, lens robustness, resistance to ignition, lens transmittance uniformity, polarizing filters, gradient filters, material and surface quality, and resistance to radiation. EU directive of Personal Protective Equipment (PPE) 89/686/EEC specifies the fundamental safety requirements for sunglasses.All sunglasses are required to meet the fundamental safety requirements EN 1836:2005.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Sunglasses and Sun Glare Filter Testing

SGS HK Ltd

The importance of choosing safe sunglasses is often forgotten in the dizzying array of fun and fashion that surrounds sunglasses designs. Designer frames, celebrity trends, and silly fads often influence our purchases, and we forget the importance of sun protection, which can cause long-term damage to your eyes from glare and harmful ultraviolet light, which can cause cataracts and may be linked to macular degeneration. Children are vulnerable to UV because they have larger pupils and clearer lenses in their eyes. Sunglasses are categorized as Class 1 of personal protection equipment under European Regulation 2016/425. Our HOKLAS-accredited laboratory facilities provide you with one-stop simple solutions for PPE product compliance with testing and certification requirements against all applicable international and national standards, such as: International: ISO 12312.1, ISO 12312.3Europe: EN ISO 12312.1, EN ISO 12312.3USA: ANSI Z80.3China: GB 39522.1Taiwan: CNS 15097Australia / New Zealand: AS/NZS 1067.1We offer a wide range of physical, mechanical, chemical &amp; performance tests to check the characteristics of your sunglasses, including: TransmittanceOptical PowerScattered LightMaterial &amp; Surface QualityMinimum RobustnessEnhanced RobustnessResistance to IgnitionResistance to RadiationEye Coverage and Field of ViewImpact ResistanceRefractive PropertiesSuitability for CleaningLens ColorUltraviolet Ray TransmissionPersonal Protective Equipment (PPE) testing and certification from SGS– ensure your products comply with Regulation, 2016/425. 

Eyewear Testing Services

Wenzhou Lynns Design Co. Limited

JEFFREY LEUNG EYEWEAR DESIGN IS A HONG KONG-BASED INNOVATIVE EYEWEAR DESIGN STUDIO SPECIALIZING IN CUTTING-EDGE OPTICAL AND SUNGLASS DESIGN. WE FOCUS ON SUSTAINABLE 3D PRINTING TECHNOLOGY TO DELIVER PERSONALIZED, FASHION-FORWARD EYEWEAR SOLUTIONS FOR GLOBAL BRANDS. OUR CORE VALUES LIE IN CREATIVITY, ECO-CONSCIOUS PRODUCTION, AND COLLABORATIVE DESIGN EXCELLENCE. BY MERGING ADVANCED MANUFACTURING WITH TREND-DRIVEN AESTHETICS, WE OFFER BESPOKE, HIGH-QUALITY EYEWEAR THAT BALANCES STYLE, FUNCTIONALITY, AND SUSTAINABILITY. PARTNER WITH US FOR UNIQUE, FUTURE-READY DESIGNS TAILORED TO YOUR BRAND IDENTITY. 

JLX EYEWEAR DESIGN SERVICE

EYE CARE VISION CO,.LTD

A manufacturer in wenzhou. The company's product production lines include: metal, acetate, injection, titanium frame, etc., Product categories include sunglasses, optical frames, presbyopic glasses. 

eyewear prouction

At JLX EYEWEAR, we've redefined what's possible in 3D printed eyewear finishing. Our proprietary post-processing technology transforms raw printed frames into luxurious wearable art, achieving a matte-shiny surface quality that sets new industry standards. These eight detailed close-ups reveal the meticulous craftsmanship behind every JLX EYEWEAR private label piece - notice how light dances across the perfectly balanced matte base while subtle luminous highlights accentuate each curve and contour.  Our multi-stage finishing process begins with precision mechanical polishing to eliminate all visible layer lines, followed by specialized chemical treatments that create the perfect matte foundation. The frames then undergo our signature coating application, where nano-level particles are carefully layered to build depth and dimension into the surface. The final hand-finishing stage ensures every millimeter meets our exacting standards, resulting in a tactile experience that feels as premium as traditional luxury materials.      What makes our finishing truly revolutionary is how it maintains structural integrity while achieving visual perfection. The matte surface provides sophisticated understatement, while the controlled shine adds dynamic energy that changes with movement and lighting. This proprietary technique allows for unprecedented consistency across entire collections - whether producing fifty or five hundred frames, each piece maintains identical surface characteristics.    For brands partnering with JLX EYEWEAR, this finishing technology opens new creative possibilities. Our process works seamlessly with complex geometric designs that would be impossible to finish conventionally, while offering customizable sheen levels from soft satin to high-contrast matte/gloss combinations. The result is eyewear that feels substantial yet lightweight, looks handcrafted yet technologically advanced.   Explore the future of 3D printed eyewear finishing at www.jeffreyleungeyeweardesign.com and discover how our surface technology can elevate your private label collection.  #JLXFinishing #MattePerfection#3DPrintedLuxury#EyewearInnovation#SurfaceTechnology#LuxuryFinishes#PrivateLabelExcellence#FutureOfEyewear 

The Art of Perfection: JLX EYEWEAR's Signature Matte-Shiny 3D Printed Finishes

Conant Optical Inc

                                    THE GLOBAL RX SERVICE All of our lenses are made to order by our expert, highly trained technicians, to ensure the quality of every lens. We operates on a 24 hour schedule, seven(7) days a week to provide quick turnaround times. High quality customer service and swift delivery is our responsibility and standards. Conant RX Lens Lab is a state-of-the-art centralized optical lab. Constantly research and investment manufacturing in lens manufactuing technology offffers the latest products and technology to our customers. We have a comprehensive selection of lens options including our own free-form digital designs. Designed and equipped to handle any type of order 24 / 7 our Lab has grown steadily over the years, now in our RX lab we produce over 1,000,000 ophthalmic lenses per year. We are presently supplying RX prescription lenses to our homeland China, USA, Canada, France, Finland, Germany, Sweden, Denmark, Spain, and many other countries.   Automatic Precise Consistent 7D24H, Quicker Delivery time Capacity 6000+ jobs a day     

edge cutting service

                   THE GLOBAL RX SERVICE All of our lenses are made to order by our expert, highly trained technicians, to ensure the quality of every lens. We operates on a 24 hour schedule, seven(7) days a week to provide quick turn around times.High quality customer service and swift delivery is our responsibility and standards.Conant RX Lens Lab is a state-of-the-art centralized optical lab.Constantly research and investment manufacturing in lens manufactuing technology offers the latest products and technology to our customers. We have a comprehensive selection of lens options including our own free-form digital designs.Designed and equipped to handle any type of order 24 / 7 our Lab has grown steadily over the years, now in our RX lab we produce over 1,000,000 ophthalmic lenses per year. We are presently supplying RX prescription lenses to our homeland China, USA, Canada, France, Finland, Germany, Sweden, Denmark, Spain, and many other countries.  Automatic Precise Consistent 7D24H, Quicker Delivery time Capacity 6000+ jobs a day  

Customized packing service

Intertek Testing Services Hong Kong Limited

Though consumers’ intended-use of eyewear may vary, from the ability to see printed words clearer to protection against prolong exposure to the sun and other environmental elements, there is a common goal to protect your eyes. Intertek’s expertise spans the globe. With our state-of-the-art laboratories and innovative test methods, Intertek can assist you in complying with international standards established for the following pieces of eyewear: Ski Goggles – Intertek helps to evaluate your ski goggles against standard EN 174:2001, Personal Eye-Protection – ski goggles for downhill skiing, which is listed as Class 1 Personal Protective Equipment under the PPE Directive 89/686/EEC. Sunglasses – Intertek offers testing for transmittance properties, optical powers, scattered light, material and surface quality, robustness, resistance to radiation and more for non-prescription sunglasses and fashion eyewear. Reading Spectacles and Spectacle Frames – Intertek has the ability to test your ready-to-wear spectacles to EN 14139:2010, ophthalmic optics – specifications for ready-to-wear spectacles. In addition, Intertek can also test your spectacle frames to standard EN ISO 12870:2009 – ophthalmic optics – spectacle frames. PPE Eyewear Testing – Intertek offers safety goggle and face shield testing and certification to support manufacturers, distributors, and retailers ensure compliance with various industry requirements and standards. High-Performance Mark Program - Intertek's High-Performance Mark program substantiates and verifies the high-performance features of your eyewear products, such as the durability of frames and the ability to block blue light. This empowers you to confidently display a mark of trust to end-customers, demonstrating that these features meet Intertek's High-Performance Mark standards. Learn more: https://www.intertek.com.hk/hardlines-testing/eyewear/ 

Eyewear Testing

At JEFFREY LEUNG EYEWEAR DESIGN, we believe that color tells a story—one that communicates a brand’s essence, emotion, and innovation. That’s why we’re excited to introduce our new professional color dyeing service, tailored specifically for 3D printed eyewear parts and frames.  As 3D printing reshapes the landscape of eyewear design, designers gain more creative freedom than ever before. Yet one common challenge remains: how to infuse vibrant, accurate, and consistent color into these advanced materials. Our latest service addresses this gap—bringing precise, high-quality dyeing to nylon-based 3D printed parts, while elevating every frame with striking, durable color.  We offer a growing library of curated seasonal palettes and custom color matches, tailored for brands that value individuality and design integrity. Whether you're launching a bold fashion-forward collection or crafting timeless pieces, our service supports Pantone matching and bespoke development to align with your exact brand vision.  Designed with both emerging and established brands in mind, our service provides: - Rich, even color coverage across complex geometries- High repeatability for production-scale consistency- Custom color creation guided by our in-house dye specialists- Finishing options: matte, satin, or semi-gloss coating  Whether you're creating limited edition prototypes or preparing for global production, our process is designed to scale with your needs. We work closely with international eyewear brands, independent labels, and fashion-forward designers to ensure the final product is both visually impactful and technically reliable.  The result? Colorful, expressive, and durable eyewear pieces that enhance your design narrative. From bold statements to understated tones, we help brands use color as a form of identity and distinction—a critical advantage in today’s competitive market.  Ready to explore the future of eyewear with us? --- Get in Touch We’re currently accepting bookings for dyeing consultations, sampling, and production for Q3 and Q4 2025. Whether you're looking to explore a new palette or scale up your next collection, we’re here to support you with expertise, innovation, and style. 📩 Contact us to request a sample or color consultation.  

🎨 JEFFREY LEUNG EYEWEAR DESIGN Launches Premium Color Dyeing Service for 3D Printed Eyewear Components

Sun Yin Crystal Industry Co Ltd

The featured colour ring is made of sapphire crystal and has high luster and excellent hardness. It comes in a modern design and has excellent quality. This sapphire glass flaunts a neat and luxury appearance and makes an excellent component for high end accessory and watch components. High-quality sapphire crystal glassWith anti-impact and anti-scratch features.With high electrical resistance.With high corrosion resistance.Features great thermal stability.Features a high melting temperature of 2030 °C.With a high hardness of 9 Mohs, which is second to diamond.High quality.Excellent component for high end watches and jewellery.Vickers hardness: 2000 - 2500 daN/mm2.Optical properties: 1.760.Available in customized designs.

Sapphire Crystal Rings Watch Accessories

Nata Lighting Co

Nata design team provide optic consultancy and professional optic design service of reflector and lens. The close communication with customer can well understand customer requirement and make sure the design is what customer need. Here is the process: 1, Collect customer's requirements -light source -target beam angle -range of dimensions of the optic -holder -assembling -other optical requirements such as efficiency, UGR , lm/w ect -more precise details more precise evaluation 2. Designer evaluate design feasibility and confirm the design feasibility or suggestions 3. Provide simulation report to customer for approval 4. Provide technical drawing for customer approval 5 Proceed the tooling and sampling 6. Optic test and qualification before ship out to customer 7. Customer test and approve If you have design requirements, please feel free to contact us at info@nata.cn.   

Optic Design

Mellan Ltd

This lens coating service establishes a reflective surface on each lens, eliminating the reflections&nbsp;of sunlight&nbsp;on water or road surface. The coating is compatible with all polarized lenses. 
   Ideal for optical products for aquatic sports and driving.   AW coating with AR coating offers the best vision for wearers.   Low reflection on the backside.  

Optical Lens Coating

We offer professional testing service for spectacles frames. Our analytical services are developed by ISO with ISO 12870 to introduce the basic requirements and test methods of spectacles frames. We have a wide scope of testing such as dimensional tolerance testing, dimensional stability and elevated temperature testing, bridge deformation testing, and so on. ISO 12870 to demonstrate spectacles frames are strong, durable and free from allergenic substances.ISO 12870 to certify spectacles frames are safe in use.Dimensional tolerance testing.Dimensional stability and elevated temperature testing.Bridge deformation testing.Lens retention testing.Endurance testing.Resistance to perspiration testing.Resistance to optical radiation testing.Resistance to ignition testing.Nickel release testing (on for metal frame).To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Spectacles Frame Testing

This optical lens coating service establishes mirror surfaces on various optical lenses made of different materials. It leaves an even color on every substrate, giving it a classy appearance. Enhance the appeal of your sun spectacles with this excellent coating service. 

 
  Long lasting. 
  Available in various colors. 
 

Optical Lens Coating Service

Asahi Optics Limited

Our Services Innovative in LED Optical Engineering and Manufacturing ServicesQuick response (Quick turn of new development)Strong R&amp;D Team (Excellent engineering team with 10 years of experience), committed to bringing our customers the best LED optical designs.Production (Advanced equipment, tooling dimensional accuracy is within 0.01mm, Optical finishing accuracy is within 0.001mm, tolling lifetime can reach 500,000 shots.)Marketing (Wide range of products)One-stop service for private mold optics design, and mass production.Services (Thorough and satisfactory before &amp; after-sales service) Asahi Optics Limited has been specializing in LED optics since 2010 and providing an integrated one-stop service including optical design, tooling design, tooling making, precision injection, and sales. To shorten the cycle time of new product introduction, lower costs and take initial market share, Asahi Optics is tailor-made to satisfy your needs.Express Delivery2-3 days new optical design48 hours turn-around time on single-lens prototype sample3-5 days available for complex prototype sample15 -25 days hard tooling sample3-10 days mass production deliveryVision: Innovative in LED optical Engineering and Manufacturing Services   

LED Optics, LED Lens Design and Manufacturing

Featured is&nbsp;a lens coating service that offers various styles.&nbsp;The one-side visible style allows people to see the logo but the wearer's&nbsp;sight is&nbsp;not hindered. The two-side visible style allows the logo to be seen on both sides. The anti-counterfeit style features an invisible logo that only becomes visible only while in contact with steam.   Ideal promotional method.   Available in three colors.  

Lens Logo Coating

Daiwa Metal Works Co Ltd

3D letters lightbox based on the metal lightbox, cut through the logo and text from a backing pane, fill the cutouts with light-emitting characters, and punch them out in relief as 3D letters. The luminous effect is unique and conspicuous, as well as the contrast of light and dark build a solid stereoscopic impact that makes the message pop and easy to read from a distance.  √Conspicuous luminous effect as well as contrast of light and dark build a strong stereoscopic effect; √Eye-catching advertising message and easy to read from a distance; √Durable and long-lasting.  Optional Materials: Stainless Steel， Aluminum, Copper, Iron, Acrylic；Metal surface: Painted; Brushed, Satin or Mirror Polished (Plating are available)；Size Limit: At least 30mm thickness or more；Application: Indoor, fit to facades, hang from canopies or bond to walls, mainly for branding decoration and modern office.Application industry: Catering, hotel, medical, beauty, banks, retail and high-end industry, etc.Sample 1：Stainless Steel With Black Spray Paint；Back-Lit Letter；Sample 1：Back-Lit Letter With TI-GoldSample 2：Printing + Half-lighting Side-Lit LetterSample 2：Satin Stainless Steel with Bronze

3D Letters Light Box

The fabric lightbox combined the aluminum outer shell and the weather-resistant fabric of the illuminated face. Specified and customized graphics are UV inkjet printed on the material, then spring-tensioned into the metal casing, CE approved, and ECA rated LED installed inside. Its structure is simple, and the price is affordable. Fabric light box has even light, larger illuminated area, brighter and better advertising effect than the traditional lightbox, which is suitable for shopping malls, airports or outdoor venues.  √Breathable fabric can reduce the risk of overheating caused by long-term lighting; √Even light, larger illuminated area, brighter and better advertising effect compared with traditional light box; √Energy-saving, brighter and long-life LEDs are used; √Simple structure design withe high-quality aluminum which is easy for installation, maintenance and replacement; √Affordable price.  Materials: Fabric and Aluminum frameMetal Surface: Painted aluminumLED Colors : cool white (6500K)Application: Indoor and outdoor, fit to facades, hang from canopies or bond to walls, for various signs in chain stores, civil engineering site, public facilities, etc.Application (Industries): Government, catering, medical, banks, retail and high-end industry, municipal engineering, shopping malls, etc.Scene Display 1Scene Display 2Detail 1Detail 2 

Single Side Light Box— Fabric Face Light Box

                    THE GLOBAL RX SERVICE All of our lenses are made to order by our expert, highly trained technicians, to ensure the quality of every lens. We operates on a 24 hour schedule, seven(7) days a week to provide quick turn around times. High quality customer service and swift delivery is our responsibility and standards. Conant RX Lens Lab is a state-of-the-art centralized optical lab. Constantly research and investment manufacturing in lens manufactuing technology offffers the latest products and technology to our customers. We have a comprehensive selection of lens options including our own free-form digital designs. Designed and equipped to handle any type of order 24 / 7 our Lab has grown steadily over the years, now in our RX lab we produce over 1,000,000 ophthalmic lenses per year. We are presently supplying RX prescription lenses to our homeland China, USA, Canada, France, Finland, Germany, Sweden, Denmark, Spain, and many other countries.   Automatic Precise Consistent 7D24H, Quicker Delivery time Capacity 6000+ jobs a day   

Progressive lens customized logo service

We offer professional testing service for your spectacles. The optics deformation testing service includes the bridge deformation service and lens retention service. We use the high-quality equipments to test and offer the precision results. Published on 31st July 2009, BS EN ISO 12870:2009 specifies the fundamental requirements for unglazed spectacle frames used with all prescription lenses.This international standard covers all types of spectacle frame including rimless mounts, semi-rimless mounts and folding spectacle frames.It is also applicable to those products that are made of natural organic materials.STC can provide you ophthalmic optics and spectacle frame testing service.Bridge deformation service.Lens retention service.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Optics Deformation Testing

                    THE GLOBAL RX SERVICE All of our lenses are made to order by our expert, highly trained technicians, to ensure the quality of every lens. We operates on a 24 hour schedule, seven(7) days a week to provide quick turn around times.High quality customer service and swift delivery is our responsibility and standards.Conant RX Lens Lab is a state-of-the-art centralized optical lab.Constantly research and investment manufacturing in lens manufactuing technology offers the latest products and technology to our customers. We have a comprehensive selection of lens options including our own free-form digital designs.Designed and equipped to handle any type of order 24 / 7 our Lab has grown steadily over the years, now in our RX lab we produce over 1,000,000 ophthalmic lenses per year. We are presently supplying RX prescription lenses to our homeland China, USA, Canada, France, Finland, Germany, Sweden, Denmark, Spain, and many other countries.   Automatic Precise Consistent 7D24H, Quicker Delivery time Capacity 6000+ jobs a day  

Install service

Bright Sky Electronics Co Ltd

Little LED Rabbit

We offer professional endurance testing service for your spectacles. We can test the endurance, dimensional tolerance, resistance to perspiration, etc. The testing results are precision and reliable. Published on 31st July 2009, BS EN ISO 12870:2009 specifies the fundamental requirements for unglazed spectacle frames used with all prescription lenses.This international standard covers all types of spectacle frame including rimless mounts, semi-rimless mounts and folding spectacle frames.It is also applicable to those products that are made of natural organic materials.STC can provide you ophthalmic optics and spectacle frame testing service.Testing service: endurance testing, dimensional tolerance testing, dimensional stability at elevated temperature testing, resistance to perspiration testing, resistance to optical radiation testing and nickel release testing (only for the metal frame).To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Optics Endurance Testing

We offer professional optics ignition testing service for you. We use the high-quality equipments to test and offer the precision results. We also provide the spectacle frame testing service. Published on 31st July 2009, BS EN ISO 12870:2009 specifies the fundamental requirements for unglazed spectacle frames used with all prescription lenses.This international standard covers all types of spectacle frames including rimless mounts, semi-rimless mounts and folding spectacle frames.It is also applicable to those products that are made of natural organic materials.STC can provide you ophthalmic optics and spectacle frame testing service.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

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