Optical Transparent LSR Camera Lens Custom Silicone Camera Cover
Optical Transparent LSR Camera Lens Cover
Liquid Silicone Rubber Injection MoldingPublished on May 30, 2026
Xiangchu produces optical transparent liquid silicone rubber camera lens, with excellent light transmittance and yellowing resistance. Low stress adapts to high-precision camera modules, with great waterproof sealing performance. We support custom size and hardness with compliant materials, suitable for various optical camera products.
Material
Optical-grade LSR
Hardness
Shore A 30-50
Temperature
-40°C ~ +150°C
Colors
Transparent, Other customizable
Certifications
ISO 9001
Applications
Suitable for various optical camera modules including consumer electronics camerassecurity surveillance camerasvehicle camerasused as a protective light-transmitting sealing component.
OEM Service
MOQ:500 pcs
Lead Time:15-20 business days
Customization:Customizable (color/hardness/size)
Specifications
Density1.08 g/cm³
Curing Time60s ~ 180s
Color OptionsHigh Transparency Colorless, Light Blue Anti-reflection, Matte Semi-transparent
lsr camera lenstransparent silicone lensoptical silicone lenscustom silicone camera lensliquid silicone lens
Volume Resistivity1.2×10^15 Ω·cm
Dielectric Strength22 kV/mm
Elongation at Break650%
Thermal Conductivity0.18 W/(m·K)
Relevant CertificationROHS 2.0, FDA 21 CFR, REACH
Operating Temperature Range-40℃ ~ 150℃
Linear Expansion Coefficient2.1×10^-4 /℃
Optical Transparent Liquid Silicone Rubber (LSR) Camera Lens Covers are high-performance protective components designed specifically for optical imaging devices, manufactured by 橡楚(湖北)橡胶有限公司 (Xiangchu (Hubei) Rubber Co., Ltd.). Engineered from premium medical-grade liquid silicone rubber, our lens covers balance exceptional optical clarity, mechanical flexibility, and long-term environmental stability to protect sensitive camera imaging modules without compromising image quality.
As a professional manufacturer specializing in custom LSR products, we produce these lens covers through precision compression and injection molding processes, enabling tight dimensional tolerances and consistent surface quality for mass production. Unlike traditional glass or rigid plastic lens covers, our LSR covers offer inherent impact resistance and shock absorption, making them ideal for portable and ruggedized imaging devices. Each product is produced in strict accordance with our ISO 9001 quality management system, ensuring consistent performance across all production batches.
Our optical transparent LSR camera lens covers maintain stable light transmission across a wide wavelength range, from visible light to near-infrared, supporting high-resolution imaging for consumer, industrial, and automotive camera systems. The non-yellowing formulation of our LSR material ensures long-term optical clarity even after prolonged exposure to UV light and extreme temperature fluctuations.
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Technical Specifications
Material Properties
ParameterSpecificationTest Method
Base MaterialHigh-purity addition-cured liquid silicone rubber-
Refractive Index (25°C)1.40-1.43Abbe Refractometer
Haze≤1.0%Haze Meter
Yellowing Resistance (ΔYI after 1000h UV aging)≤2.0QUV Aging Test
Physical Performance
ParameterSpecificationTest Method
Shore Hardness Range30A - 70AShore A Durometer
Tensile Strength≥5.0 MPaISO 37
Elongation at Break≥350%ISO 37
Tear Strength≥15 kN/mISO 34-1
Density1.05-1.15 g/cm³ISO 1183
Operating Temperature Range-40°C to 180°CThermal Cycling Test
Water Absorption (24h, 25°C)≤0.3%ISO 62
Flammability RatingV-0 (UL 94)UL 94 Vertical Burn Test
Process Parameters
For mass production and custom molding, our standard process parameters are:
Molding temperature: 160°C - 180°C
Curing time: 30s - 120s (varies by product thickness)
Dimensional tolerance: ±0.05mm for standard designs, ±0.02mm for high-precision requirements
Available surface finishes: Optical grade polished, matte anti-glare, textured anti-fingerprint
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Product Advantages
Uncompromised Optical Performance
Our proprietary optical-grade LSR formulation delivers exceptional light transmittance and low haze, ensuring no distortion or brightness reduction for high-resolution camera imaging. The material’s consistent refractive index eliminates chromatic aberration, supporting sharp, true-color image capture even for 4K and 8K high-resolution camera modules. Unlike coated plastic covers, the inherent optical properties of LSR do not degrade with peeling or scratching of surface treatments.
Superior Durability and Protection
The inherent elasticity of LSR provides excellent impact and shock absorption, protecting the inner optical lens from cracks and damage caused by drops and physical collisions. The material is also inherently scratch-resistant compared to soft plastics, and maintains its flexibility and mechanical properties across a far wider temperature range than thermoplastic alternatives. It is resistant to water, moisture, common chemicals, and ozone, preventing performance degradation in harsh operating environments.
Customizable Design and Processing
As an experienced LSR manufacturer, we can produce custom-shaped lens covers in any size, thickness, and hardness to match specific camera module designs. LSR supports precision molding of complex contours, integrated mounting tabs, and bevelled edges that fit seamlessly into device enclosures. We also offer custom surface treatments, including anti-glare (AG), anti-reflective (AR), and anti-fingerprint (AF) coatings, to meet specific application requirements.
Environmentally Friendly and Biocompatible
Our addition-cured LSR material is free of BPA, phthalates, and other harmful additives, meeting basic biocompatibility requirements for consumer electronic devices. The material does not release volatile organic compounds (VOCs) under normal operating conditions, making it safe for use in portable consumer devices and wearable imaging products. All production waste is recycled in accordance with local environmental regulations.
Cost-Effective Mass Production
LSR injection molding enables high-volume production with consistent quality and low per-unit cost, compared to precision-cut glass lens covers. The natural mold release properties of LSR reduce production cycle times and post-processing requirements, allowing us to deliver large orders with short lead times to meet client demand.
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Applications
Optical Transparent LSR Camera Lens Covers are suitable for a wide range of imaging device applications, including:
Consumer Electronics: Smartphone rear/front camera modules, wearable smart watch cameras, action sports cameras, laptop webcams, and drone imaging systems. The impact resistance of LSR makes it particularly well-suited for portable devices that are regularly exposed to physical stress.
Automotive Electronics: Advanced driver assistance system (ADAS) camera lenses, surround-view parking cameras, in-cabin driver monitoring cameras, and rearview backup cameras. The wide operating temperature range and UV resistance of our LSR covers ensure long-term stable performance in under-hood and exterior automotive environments.
Industrial Imaging: Machine vision camera lenses, factory automation monitoring cameras, outdoor security surveillance cameras, and rugged handheld device cameras. The moisture and chemical resistance of LSR protects imaging components in dusty, high-humidity industrial environments.
Medical Devices: Disposable and reusable endoscope camera covers, portable medical imaging device lenses, and wearable health monitoring cameras. Our low-toxicity LSR formulation meets basic safety requirements for short-term and long-term medical device applications.
Outdoor and Sports Equipment: Action camera lens protections for outdoor sports equipment, trail camera lens covers, and marine imaging device components. The water and salt mist resistance of LSR prevents performance degradation in prolonged outdoor and marine use.
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Selection Guide
Hardness Selection
30A - 40A Shore A: Soft, highly flexible covers for curved camera modules and devices that require high conformability to irregular enclosure surfaces. Recommended for wearable devices and custom-shaped integrated camera systems.
40A - 55A Shore A: General purpose balance of flexibility and rigidity. Suitable for most consumer electronics and automotive camera applications, providing adequate protection while maintaining dimensional stability. This is our most popular hardness range for standard lens covers.
60A - 70A Shore A: High-hardness, rigid covers for applications that require high dimensional stability and resistance to surface deformation. Recommended for large-format industrial camera lenses and high-precision optical systems.
Size Specifications
We support custom size production to match your specific camera module design. Standard stock sizes include:
Circular covers: Diameters ranging from 3mm to 50mm, thickness from 0.5mm to 3.0mm
Rectangular/square covers: Side lengths from 4mm to 60mm, thickness from 0.5mm to 3.0mm
For custom dimensions outside of these ranges, please contact our sales team with your technical drawings for a quotation.
Material Grade
General Optical Grade: Suitable for consumer electronics and standard industrial applications, meets all core optical and durability requirements at a competitive cost point.
High-temperature Resistant Grade: Formulated for automotive and outdoor applications that require prolonged exposure to high temperatures and UV light, with enhanced yellowing resistance.
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Quality Assurance
At 橡楚(湖北)橡胶有限公司, all products are manufactured under a strict ISO 9001-certified quality management system. We implement multi-stage quality inspection throughout the production process, including incoming material inspection for raw LSR, in-process dimensional and optical testing, and final pre-shipment inspection to ensure every product meets specification requirements.
Our quality testing laboratory is equipped with professional optical testing equipment, hardness testers, and aging testing chambers to verify all performance parameters before delivery. We can provide material test reports (MTR) and inspection certificates upon request.
Our company is located at 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, Ezhou City, Hubei Province, China. For custom inquiries, technical support, or quotations, please contact us at:
Phone: +86 18071171144
Email: churubber@163.com
We welcome clients to share your specific application requirements and we will provide tailored LSR camera lens cover solutions to match your needs.