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OEM Best Butterfly Sunglasses for Oval Face Female
OEM Best Butterfly Sunglasses for Oval Face Female
Our butterfly sunglasses are a testament to innovation and elegance. Crafted with precision, they are ideal for both work and leisure, providing a fashionable accessory that does not compromise on functionality.
Optical Performance and Lens Characteristics
Polarization Efficiency and Visual Clarity
The lenses employed in this eyewear utilize TAC polarized film technology, achieving a high degree of polarization efficiency. This effectively mitigates glare arising from horizontally polarized light, enhancing visual clarity and contrast, particularly in environments with reflective surfaces such as water, snow, and roadways.
The spectral transmission characteristics of the lenses are carefully controlled to attenuate harmful ultraviolet (UV) radiation (UVA and UVB) and high-energy visible (HEV) light, thereby safeguarding ocular health. The precise dimensions of the lenses, detailed in Table 1, are optimized to provide a wide field of view and minimize peripheral distortions.
Lens and Frame Geometric Parameters (mm)
| Parameter | Value (mm) | Tolerance (±mm) |
| Lens Width | 50 | 0.2 |
| Lens Vertical | 47 | 0.2 |
| Bridge Width | 22 | 0.1 |
| Temple Length | 145 | 0.5 |
| Frame Length | 144 | 0.5 |
Lens Material Properties
The TAC material exhibits exceptional optical clarity, impact resistance, and dimensional stability. Its inherent lightweight nature contributes to the overall comfort and wearability of the eyewear. Furthermore, the lenses incorporate a scratch-resistant coating to enhance durability and maintain pristine optical quality over extended use.
Advanced Frame Design and Ergonomics
Material Composition and Structural Integrity
The frame construction employs a synergistic combination of TR and Acetate materials. The TR component, a high-performance thermoplastic, offers exceptional flexibility, impact resistance, and chemical resistance. Acetate, a cellulose-derived polymer, provides a lustrous aesthetic appeal and allows for intricate design detailing. This hybrid construction ensures a robust yet lightweight frame that conforms comfortably to the contours of the wearer’s face.
Facial Morphology and Ergonomic Optimization
The butterfly frame geometry is specifically engineered to complement oval facial shapes. The frame’s curvature and dimensions are meticulously calculated to distribute weight evenly and minimize pressure points. This design consideration ensures long-term wearing comfort and prevents slippage during dynamic activities.
Manufacturing Processes and Quality Control
The manufacturing process adheres to stringent quality control protocols at each stage, from raw material inspection to final product assembly. Precision injection molding techniques are employed to fabricate the frame components, ensuring dimensional accuracy and structural integrity. The lenses are precisely cut and edged to fit the frame geometry, and the polarization axis is carefully aligned to optimize performance. Each pair of sunglasses undergoes a rigorous visual and mechanical inspection to guarantee compliance with established quality standards.
Customization and OEM/ODM Capabilities
This model is available in a diverse range of colorways, including Black/Grey, Brown/Tea, Tortoiseshell/Tea, Clear Green/Gradient Green, and Grey/Gradient Gray. Furthermore, extensive OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) services are offered, allowing for the customization of lens tints, frame colors, and branding elements. This flexibility enables the creation of bespoke eyewear solutions tailored to specific customer requirements and brand identities. Logos or brand identifiers can be precisely applied to the lenses and temples using advanced printing or laser engraving techniques.
Supply Chain and Distribution
We maintains a robust supply chain and inventory management system to ensure timely delivery of products. Both wholesale and bulk manufacturing options are available, catering to a diverse range of clients, from independent retailers to large-scale distributors. Inquiries regarding quality, pricing, minimum order quantities (MOQ), packaging, shipping, and safety certifications are welcomed and addressed promptly through various communication channels, including WhatsApp, email, and direct inquiry submissions.
Advanced Optical Performance and Lens System Analysis
Polarization Efficiency and Glare Reduction Mechanisms
The core of this eyewear’s optical performance lies in its utilization of high-quality TAC polarized film technology. The polarization efficiency, exceeding 99% for horizontally polarized light, is achieved through a precisely oriented iodine or dye-based dichroic filter embedded within the TAC substrate. This effectively eliminates disabling glare originating from specular reflections, enhancing visual acuity and contrast sensitivity. The degree of polarization (P) is quantified by:
P = (Iv – Ih) / (Iv + Ih)
where Iv is the intensity of vertically polarized light and Ih is the intensity of horizontally polarized light.
Furthermore, the lens incorporates anti-reflective (AR) coatings on both the front and back surfaces. These multi-layer thin-film coatings minimize surface reflections across a broad spectral range, further enhancing light transmission and reducing ghost images. The AR coatings are deposited using vacuum deposition techniques, achieving precise control over layer thickness and refractive index.
Spectral Transmission and Ocular Protection
The spectral transmittance of the lenses is engineered to provide optimal protection against harmful solar radiation. The lenses effectively block 100% of UVA and UVB radiation (wavelengths below 400 nm) and attenuate a significant portion of high-energy visible (HEV) light (400-500 nm), which has been implicated in the pathogenesis of age-related macular degeneration. The spectral transmission curve is characterized by a neutral gray tint, ensuring accurate color perception while reducing overall luminous intensity. The luminous transmittance (Tv) is typically in the range of 15-20%, making the lenses suitable for bright sunlight conditions. The specific transmittance values at key wavelengths are provided in Table 2.
Lens Spectral Transmittance Characteristics (%)
| Wavelength (nm) | Transmittance (%) | Tolerance (±%) |
| 380 (UVA) | 0 | 0.1 |
| 400 (UVB) | 0 | 0.1 |
| 450 (Blue) | 10 | 1.0 |
| 550 (Green) | 18 | 1.0 |
| 650 (Red) | 18 | 1.0 |
Optical Aberrations and Image Quality
The lens geometry is optimized to minimize optical aberrations, ensuring sharp, distortion-free vision across the entire field of view. The base curve of the lens is carefully selected to match the curvature of the frame and the wearer’s face, reducing off-axis astigmatism and power errors. The lenses are manufactured to high optical precision standards, with power tolerances within ±0.12 diopters and prism tolerances within ±0.12 prism diopters. Wavefront analysis techniques are employed to verify the optical quality and identify any residual aberrations.
Advanced Frame Design, Materials Science, and Structural Engineering
Hybrid Frame Architecture and Material Properties
The frame structure utilizes a hybrid design, combining the advantageous properties of TR-90 thermoplastic and cellulose acetate. TR-90, a high-performance polyamide known for its exceptional flexibility, impact resistance, and lightweight characteristics, forms the primary structural component of the frame. It exhibits a high flexural modulus and fatigue resistance, ensuring long-term durability and dimensional stability under mechanical stress. The density of TR-90 is approximately 1.14 g/cm³, contributing to the overall lightness of the eyewear. Key material properties are detailed in Table 3.
Table 3: Frame Material Properties
| Material | Density (g/cm³) | Tensile Strength (MPa) | Flexural Modulus (GPa) |
| TR-90 | 1.14 | 60-70 | 2.0-2.5 |
| Cellulose Acetate | 1.30 | 40-50 | 1.5-2.0 |
Cellulose acetate, a bio-based polymer derived from cotton linters or wood pulp, is strategically incorporated into the temple arms and decorative elements. Acetate offers a luxurious aesthetic appeal, with rich color saturation and depth, along with excellent hypoallergenic properties. The combination of TR-90 and acetate results in a frame that is both durable and aesthetically refined.
Environmental Considerations and Sustainability
We are dedicated to reducing our environmental impact and advancing sustainable practices across all aspects of our operations. This commitment encompasses:
Material Sourcing: Prioritizing the use of environmentally friendly and ethically sourced materials, including recycled and bio-based polymers. The company actively seeks suppliers who adhere to stringent environmental and social responsibility standards.
Manufacturing Processes: Implementing energy-efficient manufacturing processes to reduce greenhouse gas emissions and conserve energy resources. This includes optimizing production workflows, utilizing energy-efficient equipment, and implementing waste reduction programs. Water recycling systems are employed to minimize water consumption, and emissions are carefully monitored and controlled to meet regulatory requirements.
Waste Management: Implementing comprehensive waste management programs to minimize waste generation and promote recycling and reuse. This includes segregating waste streams, implementing recycling programs for plastic, paper, and metal, and partnering with recycling facilities to ensure responsible disposal of waste materials.
Packaging and Distribution: Utilizing sustainable packaging materials, such as recycled cardboard and biodegradable plastics, to minimize packaging waste. Optimizing transportation routes and logistics to reduce fuel consumption and carbon emissions.
Product Lifecycle Management: Considering the entire product lifecycle, from design and manufacturing to end-of-life disposal. The company is exploring options for product take-back programs and recycling initiatives to ensure responsible disposal of used eyewear.
What is Polarized？
Polarization of Light: Light travels in waves, and these waves vibrate in multiple directions. When light reflects off flat surfaces like water, snow, glass, or paved roads, it tends to become polarized, meaning the light waves align along a particular plane—typically horizontal. This horizontally polarized light creates glare, which can be distracting or even hazardous by reducing visibility and causing eye strain.
Polarized Sunglasses: Polarized sunglasses are designed with a special filter embedded within the lenses that blocks horizontally polarized light while allowing vertically polarized light to pass through. This filter is usually made from a chemical film applied to the lens material. By eliminating the horizontally polarized light, polarized lenses significantly reduce glare from reflective surfaces.
Polarizing Filter: The lenses contain a vertically oriented polarizing film. Since glare is caused by horizontally polarized light, the vertical filter blocks this glare while permitting the remaining light to enter.
Enhanced Clarity and Contrast: With glare reduced, wearers experience improved visual clarity and contrast, making objects appear sharper and colors more vibrant.
UV Protection: Many polarized lenses also incorporate UV-blocking materials, providing protection against harmful ultraviolet rays.
Benefits of Polarized Sunglasses
Reduced Glare: Minimizes reflections from surfaces like water and roads, improving comfort and visibility.
Eye Comfort: Reduces eye fatigue and strain caused by prolonged exposure to bright light and glare.
Improved Safety: Enhances visibility during activities such as driving, boating, fishing, and skiing, contributing to greater safety.
Better Visual Experience: Provides clearer vision with truer colors and better depth perception.
Applications
Outdoor Activities: Ideal for fishermen spotting fish beneath the water’s surface, skiers navigating slopes, and cyclists or runners on sunny days.
Driving: Helps drivers see more clearly by reducing glare from the road and other vehicles, especially during dawn or dusk.
Everyday Wear: Beneficial for anyone spending time outdoors, whether at the beach, hiking, or simply enjoying a sunny day.
Materials: Development of high-quality polarized films that enhance durability and optical clarity.
Lens Coatings: Application of additional coatings for scratch resistance, water repellence, and anti-reflective properties.
Prescription Polarized Lenses: Customization options for individuals requiring corrective lenses, combining vision correction with polarization.
Fashion and Functionality: A wide range of stylish frames and lens colors that do not compromise on the benefits of polarization.
In summary, “polarized” refers to lenses designed to reduce glare from reflective surfaces by filtering out horizontally polarized light. Polarized sunglasses enhance visual comfort and clarity, making them an essential accessory for outdoor activities and daily wear under bright conditions.
Frame Style and Shape:
Full-Rim, Semi-Rimless, or Rimless: Choose the frame construction that best complements your look and accommodates your prescription lenses.
Frame Shapes: Options include rectangular, round, oval, cat-eye, aviator, and more, allowing you to select a shape that flatters your face.
Frame Color and Finish:
Anodized Colors: Titanium frames can be anodized to produce a variety of colors such as silver, gold, black, blue, red, and even vibrant hues.
Finishes: Select from matte, glossy, brushed, or textured finishes to achieve your desired aesthetic.
Lens Customization:
Prescription Lenses: Precisely tailored lenses based on your vision correction needs.
Lens Materials: Options include high-index lenses for strong prescriptions, polycarbonate for impact resistance, or Trivex for a balance of clarity and durability.
Lens Coatings: Add anti-reflective coating to reduce glare, scratch-resistant coating for durability, UV protection, or blue light filtering for digital eye strain.
Lens Tints and Treatments:
Photochromic Lenses: Lenses that adjust their tint based on light exposure, darkening outdoors and clearing indoors.
Polarized Lenses: Reduce glare from surfaces like water or roads, ideal for driving or outdoor activities.
Custom Tints: Choose from a spectrum of tint colors and gradients for style or specific visual needs.
Size and Fit Adjustments:
Custom Frame Measurements: Adjust temple length, bridge width, and lens width/height for a personalized fit.
Adjustable Nose Pads: Opt for silicone or titanium nose pads that can be adjusted for comfort and to prevent slipping.
Temple and Bridge Options:
Temple Designs: Select from various temple shapes and thicknesses, including straight, curved, or contoured designs.
Spring Hinges: Incorporate spring-loaded hinges for added flexibility and durability.
Decorative Accents: Add embellishments like patterned temple arms or embedded materials for a unique touch.
Personalization and Detailing:
Engravings: Personalize your frames with engraved names, initials, or symbols on the temples or bridge.
Embossing and Logos: Include custom embossing or brand logos for a distinguished look.
Material Combinations:
Mixed Materials: Combine titanium with other materials like acetate, wood, or carbon fiber for a distinctive frame design.
Beta-Titanium Options: Use beta-titanium for increased flexibility while retaining strength and lightness.
Accessories and Add-Ons:
Clip-On Lenses: Add magnetic or clip-on sunglasses or specialty lenses to your prescription frames.
Retainers and Chains: Choose from stylish retainers, chains, or cords to keep your glasses secure and add a fashion statement.
Technological Enhancements:
Smart Glasses Integration: Incorporate technology for features like audio, fitness tracking, or connectivity.
3D Printing Customization: Utilize 3D printing for bespoke frame designs and intricate detailing.
Eco-Friendly Options:
Sustainable Materials: Opt for frames made with recycled titanium or environmentally friendly production processes.
Brand and Designer Collaborations:
Limited Editions: Choose from or customize frames in collaboration with designers or brands for exclusive styles.
Artisan Crafted Frames: Work with craftsmen for handmade frames with unique characteristics.
Creating the perfect pair of eyeglasses is a collaborative journey that merges your unique vision with our expertise in design and manufacturing. We have crafted a comprehensive six-step process to ensure that every detail aligns with your expectations, resulting in eyewear that is both functional and stylish. Here’s how we bring your custom glasses to life:
Your journey begins with an idea. Whether you have a rough sketch, a detailed drawing, a photograph, or even just a verbal description, we welcome all forms of inspiration. Share your thoughts on the style, material, and shape you envision. Our dedicated design team will work closely with you to translate these ideas into a tangible concept. This collaborative effort ensures that your creativity is captured accurately, setting a solid foundation for the custom design process.
Once we’ve understood your concept, our designers transform it into a precise 2D technical drawing. This blueprint serves as a detailed visual and dimensional reference, outlining every aspect of the glasses frames structure—measurements, frame thickness, lens size, and other key features. The 2D drawing allows you to review the technical specifications thoroughly. At this stage, you have the opportunity to suggest adjustments or modifications, ensuring that the design aligns perfectly with your expectations before progressing further.
With the 2D blueprint approved, we elevate the design into a 3D model. This three-dimensional representation brings your eyewear to life, showcasing the actual shape, curves, and angles from all perspectives. The 3D model provides an immersive experience, helping you visualize how the frames will look and fit. It also illustrates how different materials interact within the design. This step is crucial for confirming that both the aesthetics and functionality meet your standards before moving into physical production.
After you approve the 3D model, we proceed to create a counter sample—a physical prototype of your glasses frames. Crafted using the materials and specifications outlined earlier, this sample allows you to experience the eyewear firsthand. You can assess the fit, comfort, and overall appearance, ensuring that it not only looks great but also feels right when worn. This stage is vital for making any last-minute tweaks or adjustments before mass production begins, giving you complete confidence in the final product.
With the counter sample finalized, we move on to creating a custom injection mold. This mold is essential for producing your glasses frames in bulk while maintaining high precision and consistency. We incorporate your branding elements directly into the mold, including logos, engravings, or any specific details that embody your brand identity. This integration ensures that every pair manufactured carries the same quality and branded features as the approved sample, providing a uniform and professional finish.
The final step involves producing a complete sample using the injection mold and all integrated branding elements. This fully finished product represents exactly what the mass-produced eyeglasses will be. It includes all design features, materials, and customizations as per your specifications. By reviewing this final sample, you can ensure that every aspect—from the frame shape to the smallest branding detail—has been executed flawlessly. Upon your approval, we proceed with full-scale manufacturing, delivering eyewear that is uniquely yours.
Bringing Your Unique Eyewear to Life
Our meticulous process is designed to prioritize your vision at every stage. By combining your ideas with our technical expertise and attention to detail, we create custom glasses frames that truly reflect your style and meet your functional needs. From the initial concept to the final product, we are committed to delivering eyewear that exceeds your expectations.
We look forward to embarking on this creative journey with you and bringing your unique eyewear designs to reality.
As a leading China-based manufacturer and exporter of high-quality eyeglasses. Nestled in Taizhou, Zhejiang Province, the renowned eyewear hub of China our expansive 6,000 square meter factory is a testament to our commitment to excellence. With over 15 years of industry expertise and a robust production capacity of 800,000 pieces per month, we are dedicated to delivering exceptional eyewear solutions to clients worldwide.
Our focus is on crafting top-quality, iconic designs that resonate with renowned eyewear brands across the globe. We cater to all market segments, providing innovative and customizable eyewear solutions that meet and exceed international safety and quality standards. Our certifications including ISO 9001, CE, FDA, reflect our unwavering dedication to quality and compliance.
We offer professional OEM/ODM services, developing over 300 new models annually. Our diverse product range includes reading glasses, blue light blocking glasses, sunglasses, sports eyewear, kids’ eyewear, and a variety of accessories. Our strong domestic and international partnerships have propelled us to new heights.
Our skilled engineering team collaborates closely with clients to transform ideas and concepts into reality. Whether you’re launching new models or refining existing ones, we provide customized solutions tailored to your unique needs. We strive to meet the evolving demands of modern consumers and the global eyewear market by delivering premium products that blend style, functionality, and durability.
Believe we will be your reliable partner in the eyewear industry. Experience unparalleled quality, innovation, and customer service as we work together to shape the future of eyewear one iconic design at a time.
Frequently Asked Question
Our acetate eyeglasses frames are crafted from high-quality cellulose acetate, a durable and flexible material derived from natural cotton and wood fibers. This premium material allows for vibrant colors and patterns, providing both style and longevity.
Acetate frames offer several advantages:
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Durability: Resistant to wear and tear, ensuring long-lasting use.
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Lightweight Comfort: Provides comfortable all-day wear without pressure.
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Hypoallergenic: Ideal for sensitive skin, reducing the risk of irritation.
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Versatile Designs: Available in a wide array of colors, patterns, and styles.
Yes, we specialize in custom designs for wholesale orders. You can personalize frame shapes, colors, finishes, and even add your brand logo. Our design team works closely with you to bring your unique vision to life.
Our standard MOQ is 1200pc, but we offer flexibility depending on your specific needs. Please contact our sales team to discuss your requirements.
Production time typically ranges from 35-45 days depending on the complexity and quantity of your order. Shipping times vary by location but generally take 35 days. We prioritize timely delivery without compromising quality.
Quality is our top priority. Our frames undergo strict quality control at every production stage. We comply with international standards and ensure each product meets our rigorous durability and safety criteria.
Rimless titanium glasses frames are known for their minimalist design and lightweight feel. While titanium itself is a durable material, the lack of a full frame does make rimless glasses more susceptible to damage if handled roughly or dropped. However, with proper care and maintenance, rimless titanium glasses can still provide long-lasting wear and remain a stylish choice for those who prefer a more understated look.
Absolutely. We offer sample frames so you can assess the quality and design firsthand. Please reach out to us to arrange sample requests.
Yes, our acetate is made from renewable resources, making it an environmentally friendly choice. We are committed to sustainable practices throughout our manufacturing process.
Yes, we ship worldwide. Our logistics partners ensure secure and efficient delivery to your specified location. Shipment through by Air, Sea FCL/LCL, Air Express, FedEx, DHL etc, and by Train.
You can contact our sales team via Contact Form Link. Provide details about your desired products, and we’ll offer a tailored quote promptly.
Yes, our experienced design team can collaborate with you to develop custom frames based on your concepts. From initial sketches to final prototypes, we’re here to help bring your ideas to fruition.
Yes, we offer branding services, including custom packaging and labeling, to enhance your product presentation and strengthen your brand identity.
We combine exceptional craftsmanship with personalized service. Our commitment to quality, sustainable materials, and client satisfaction distinguishes us in the wholesale acetate eyewear market. Through our commitment to competitive pricing and unwavering quality, we are poised to become the preferred choice of customers, gradually eclipsing our competitors.
