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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.
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.
