In the era of smart home automation, robotic vacuum cleaners rely heavily on advanced sensor arrays to perform real-time distance measuring, obstacle avoidance, and spatial mapping. The optical window covering these sensors serves as a critical protective layer; its optical clarity and material purity directly determine signal transmission accuracy, sensor sensitivity, and operational stability.
To prevent signal attenuation and false obstacle detection, smart appliance manufacturers are standardizing on specialized infrared transmitting PC material. Formulated specifically for optical sensor covers, LiDAR protective lenses, and proximity sensing modules, this modified polycarbonate delivers exceptional near-infrared (NIR) transparency while filtering out ambient visible light interference.
Key Optical & Mechanical Advantages for Precision Sensing
Our specialized infrared transmitting PC material combines high infrared transparency with robust impact strength to ensure reliable 24/7 autonomous cleaning performance:
[Infrared Signal (850nm/940nm)] ➔ [IR Transmitting PC Window] ➔ [Filters Visible Light (<5%)] ➔ [Unattenuated Sensor Reception]
High IR Transmittance (700nm–2000nm): The material achieves an infrared light transmittance exceeding 90% across the 700nm to 2000nm spectrum. Specifically, it reaches 93% transmittance at 940nm and 91% transmittance at 850nm, allowing infrared signals to pass through unhindered for pinpoint spatial sensing.
Visible Light Cut-Off (<5% Leakage): By keeping visible light transmittance below 5%, the polymer effectively blocks ambient room lighting, bright sunlight, and stray reflections, preventing false sensor triggers during day or night operation.
Customizable Optical Tuning: The transmission curve across Red, Green, and Blue (RGB) wavelengths can be fine-tuned to match specific sensor frequencies and custom LiDAR module specifications.
Durable Mechanical Defense: Featuring a density of 1.102 g/cm³, a tensile strength of 50 MPa, and a flexural strength of 73 MPa, the polymer offers high impact resistance to withstand daily bumps, furniture collisions, and surface abrasions without cracking or warping.
High Yield Manufacturing for Precision Optical Components
Manufacturing thin-walled optical lenses and sensor covers requires strict material cleanliness and mold flow consistency. Our infrared transmitting PC material flows cleanly during injection molding, filling intricate wall sections without introducing internal stress lines or optical distortion:
5% Yield Boost: Utilizing this standardized optical compound helps component molders boost final injection molding yield rates by approximately 5%, reducing scrap rates and unit production costs.
Versatile Smart Home Applications: In addition to robot vacuum sensor windows, this material is widely specified for smart door lock IR lenses, security camera covers, infrared remote receiver windows, and automotive proximity sensors.
Technical Specification Overview: Optical Grade IR Transmitting PC
| Performance & Optical Metric | Tested Compound Value | Primary Manufacturing & Field Benefit |
| Material Base Classification | Infrared Transmitting PC Material | Optical-grade polymer engineered for NIR sensing applications. |
| 940nm Wavelength Transmittance | 93% Transmittance | Ensures maximum signal clarity for distance measuring and sensors. |
| 850nm Wavelength Transmittance | 91% Transmittance | High transmission efficiency for common infrared LEDs and receivers. |
| Visible Light Cut-Off Rate | < 5% Transmittance | Blocks stray ambient room light to eliminate false sensor reads. |
| Tensile & Flexural Strength | Tensile: 50 MPa / Flexural: 73 MPa | High mechanical toughness; resists cracking during daily bumper impacts. |
| Material Density | 1.102 g/cm³ | Lightweight and dimensionally stable for precision lens molding. |
Partner with a Certified Source Compounding Factory
Selecting an unverified optical resin supplier can result in black spots, batch-to-batch transmittance variance, and signal drift. Qingdao Zhongxin Huamei Plastic Co., Ltd. is an established, 30-year modified engineering plastics compounding enterprise operated as an official joint venture with CHIMEI. Founded in May 1997, we are a certified National High-Tech Enterprise specializing in custom material compounding, precision color matching, and complete optical testing.
Operating 30 automated compounding lines with an annual capacity exceeding 100,000 tons, we track every production step through an integrated MES process tracking system to guarantee zero-defect batch consistency. Our PhD-led R&D team provides custom material formulations—including infrared-transmitting PC, antistatic ABS, flame-retardant PC/ABS alloys, and low-odor modified PP. We are proud to serve as a long-term, trusted material partner for global industry leaders, including Huawei, Wanhua, ByteDance, Midea, Goertek, Weigao, FAW, and many others.
Request a Technical Datasheet & Custom Optical Sample Batch
Direct Compounding Source: Qingdao Zhongxin Huamei Plastic Co., Ltd.
Global Hotline Support & WhatsApp: +8618765279757 (WeChat/Whatsapp Available)
Official Corporate Email: info@qdzxhm.com.cn
Approved Commercial Shipping Terms: FOB / EXW Direct Factory Dispatched
Custom Sourcing Services: Targeted Wavelength Transmittance Tuning (850nm/940nm), Specialized IR-Pass Color Matching (Piano Black / Dark Smoke), Flow Index Adjustments for Micro-Lens Molding.
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