Optical, Sensor, And PIR Fresnel Lenses

Need a PIR Lens?

Rilong offers an extensive range of standard lenses and lens arrays for motion detection and other PIR applications.
Positive focal length aspheric Fresnel lenses
Cylindrical Fresnel lenses
Negative focal length aspheric Fresnel lenses
Off-axis Fresnel lenses
Lenticular arrays
Our team of optical experts can help you bring your project to life with custom or off-the-shelf designs. We’re here to help you find the right solution.

PIR Lens Recommendation

Determining the right optics for your project should be one of the first conversations you have —not the last.

PIR Lens Development Process

We currently offer five series of standard, ready-to-ship PIR Fresnel lens arrays, in addition to a few assorted types. Each series contains a number of lens arrays, each of which has the same mechanical size and shape but offers a different detection pattern. 

PIR Lens Mold Process

If a custom-designed part is needed, we are happy to collaborate with you on custom PIR lens designs. If you purchase tooling and the resulting lens arrays from us, there is no charge for the design. 

Human Body Sensing Testing

Wide temperature regulation, Precise temperature control, Accurate sensor testing, High reproducibility.

Small Animal Sensing Testing

Target sensing testing and Heat source simulation.

Infrared Sensor Testing Laboratory

Rilong has a comprehensive in-house metrology lab, staffed by skilled scientists and technicians. This enables the assessment of quality and verification of compliance with customer specifications throughout the production of prototypes, molds, and molded optics.

Our Advantages

The match between design and actual product performance is high, exceeding 95%;
The delivery cycle is short, taking only 35 days from placing the order to producing the sample, while in the industry it usually takes 50 to 60 days.

Ensure that the product can truly meet the needs of customers through simulation and design capabilities.

The product has good adaptability to installation and adjustment and can cope with a variety of installation environments. Under the same conditions, the performance of the product is better than the competitors, exceeding more than 30%.

precision PIR Lens Arrays

Talk through your optical approach with our experts in optical design, biocompatible
polymer & silicone materials, optical molding, and metrology to accelerate your project.

Transforming Your Ideas Into a Reality

Rilong Precision Mold World Class Injection Molds and Molding Services
Concept to distribution, We get it done

DESIGN

From initial sketches to detailed CAD/CAM designs, our team of skilled technical designers and engineers will expertly guide you in preparing your component for the molding process.

Contact Us

MANUFACTURING

Our multiple facilities, equipped with the latest technology and staffed by experienced professionals, ensure that we meet a wide range of production needs with precision and efficiency.

Contact Us

FULFILLMENT

Rilong offers global distribution services through our three strategically located warehouses in Shenzhen, Dongguan, and Zhuhai. This ensures timely delivery, regardless of your location.

Contact Us

Customer-Focused Partnership

At Rilong, we design and develop new product molds based primarily on our customers’ ideas. We take pride in listening to customer feedback and implementing their innovations, ensuring that their vision is brought to life.

Leaders in Innovation

Rilong Precision Mold supports this rapid pace by developing and building advanced tools that ensure we remain at the forefront of the industry, consistently leading with innovation and excellence.

Need High Quality Injection Molded Parts?

If you have a great idea, we can help bring it to life. We’ve done this before and enjoy becoming partners throughout product creation. From advising you through the mold sourcing process to delivering your new product to customers, we want to work with you every step of the way.

A Never-Ending Pursuit to Get Better

Our strength is our flexibility and adaptability. We combine our experience with your ideas to bring out products that are one step into the future.

Quality Defect-Free Production

Our vision is to not only deliver products that exceed customer expectations but also to help them reduce costs by working with them in the mold design fields. 

On-Time Order Delivery 

We desire to ensure that customers receive the goods accurately and complete delivery in the shortest possible time.