- Custom Optical Design
- PMMA / PC / Optical Materials
- Prototype to Mass Production
Fresnel lenses are ultra-thin optical components designed to eliminate the unnecessary bulk of conventional lenses while maintaining their light-focusing capability. Instead of retaining the full thickness of a traditional lens, a Fresnel lens preserves only the curved surfaces required for light refraction and compresses them into a flat, concentric pattern of annular, sawtooth-like grooves. This unique structure significantly reduces the lens’s weight and size while retaining excellent light-collecting and focusing performance.
From light source to controlled beam — a precision-guided journey through refraction, groove architecture, and beam shaping.
The Fresnel lens operates on a fundamental principle of geometric optics: refraction occurs exclusively at the interface between media. By removing the optically inactive bulk material of a conventional lens while preserving the surface curvature, the Fresnel lens achieves the same optical power with a fraction of the thickness and weight.
The lens surface is composed of concentric prismatic grooves — each acting as an independent refracting element. The slope angle of each facet varies radially: near the center, the angle approaches zero; toward the edge, it increases — typically reaching 35–40°. This radial gradient creates the precise optical power distribution required for focusing or collimation.
The focal length of a Fresnel lens is determined by the cumulative effect of all groove facets. By adjusting the groove angles and radial spacing, the designer can precisely control the convergence or divergence of the output beam. A Fresnel lens can be configured as a converging (positive) or diverging (negative) element, with focal lengths ranging from millimeters to meters depending on the application.
Beyond simple focusing, the Fresnel lens is a powerful beam-shaping tool. By designing non-uniform groove profiles — including aspheric contours and free-form surfaces — optical engineers can transform a Lambertian LED emission into a collimated, uniform, or structured beam. The thin-profile construction enables integration into compact optical systems where conventional lenses would be impractical.
Fresnel lenses are available in different designs for imaging, light concentration, beam shaping, and optical control. The right type depends on the required focal pattern, optical performance, material, and application.
| Type | Key Function | Typical Applications |
|---|---|---|
| Imaging Fresnel Lens | Forms or magnifies optical images in a thin, lightweight profile. | Magnifiers, projection, photography, imaging systems, AR/VR |
| Non-Imaging Fresnel Lens | Collects, concentrates, or redirects light without forming an image. | Solar concentration, LED collimation, lighting, PIR sensors |
| Linear Fresnel Lens | Provides single-axis focusing or directional beam control. | Solar collectors, linear lighting, infrared sensing |
| Point-Focus Fresnel Lens | Concentrates light toward a defined focal point for high energy density. | Solar CPV, solar concentration, high-energy optical systems |
| Cylindrical Fresnel Lens | Focuses or shapes light along one optical axis. | Line focusing, beam shaping, lighting, infrared sensing |
| Glass Fresnel Lens | Provides high-temperature resistance, weather resistance, and long-term stability. | Solar systems, industrial optics, outdoor applications |
Note:
The best Fresnel lens is determined not only by its optical category but also by focal length, aperture, groove pitch, material, wavelength, beam angle, operating temperature, and required optical efficiency. For custom applications, these parameters should be evaluated together during the optical design and manufacturing process.
Fresnel lenses offer advantages such as a thin profile, large aperture, and efficient light control, providing precise solutions for light concentration, collimation, and beam shaping across a wide range of applications.
Solar Energy & CPV
- Solar Concentration
- Concentrated Photovoltaics (CPV)
- Solar Thermal Systems
LED Lighting
- Beam Shaping
- Light Concentration
- LED Collimation
- High-Intensity Lighting
Infrared & PIR Sensors
- Motion Detection
- Infrared Focusing
- Security Systems
- Smart Home
AR/VR & Near-Eye Displays
- Fresnel VR Lenses
- Near-Eye Displays
- Projection Optics
Projection & Imaging
- Projectors
- Imaging Systems
- Photography
Medical & Optical Imaging
- Medical Imaging
- Optical Sensors
- Precision Light Focusing
We offer the following materials for manufacturing optical Fresnel lenses, backed by strong material inventory to support high-volume production and minimize lead times caused by material reordering.
Optical PMMA (Acrylic)
High optical clarity, excellent light transmission, and cost-effective for high-volume Fresnel lens production.
Optical PC (Polycarbonate)
Excellent impact resistance and durability, making it suitable for demanding environments.
Optical Silicone
Outstanding heat resistance, flexibility, and long-term optical stability for high-temperature applications.
Optical Glass
Superior optical clarity, thermal stability, and scratch resistance for high-precision Fresnel lens applications.
We provide complete Fresnel lens manufacturing services, from optical design and precision mold development to mass production, delivering high precision, consistent quality, and cost-effective large-scale manufacturing.
Precision Injection Molding
- High-volume production
- Polymer Fresnel lenses
- Complex groove structures
Compression Molding
- High-precision optical structures
- Specialized optical materials
Single-Point Diamond Turning
- Precision optical molds
- Microstructure machining
- High-precision optical surfaces
UV Embossing / Roll-to-Roll
- Thin optical films
- Large-area Fresnel structures
- High-efficiency continuous production
We provide support at every stage of your project, from optical design and engineering to mass production. This means you can work with a single reliable partner instead of coordinating with multiple suppliers, helping accelerate your project from concept to production.
Our sales, engineering, and manufacturing teams are located within just 50 meters of one another, enabling fast communication, efficient problem-solving, and close production coordination.
- OEM & ODM Support
- Global Supply Capability
- Functional Validation
- Reliable Delivery
What is the difference between a Fresnel lens and a conventional lens?
A Fresnel lens uses concentric optical grooves to reproduce the light-bending function of a conventional curved lens while significantly reducing its thickness and weight. Compared with conventional lenses, Fresnel lenses are typically thinner, lighter, and more material-efficient, making them suitable for large-aperture and space-constrained optical applications.
Can the focal length of a Fresnel lens be customized?
Yes. The focal length of a Fresnel lens can be customized according to the requirements of the optical system. Factors such as lens diameter, wavelength, beam angle, groove geometry, and intended application are considered during optical design to achieve the required focusing, collimation, or beam-shaping performance.
What is the difference between PMMA and PC Fresnel lenses?
PMMA Fresnel lenses offer high optical transparency, good weather resistance, and excellent suitability for lightweight optical applications and high-volume production. PC Fresnel lenses provide higher impact resistance and better mechanical durability, making them suitable for applications where greater toughness is required. The best material depends on the optical, environmental, and mechanical requirements of the application.
How large can a Fresnel lens be?
The maximum size of a Fresnel lens depends on its optical design, material, manufacturing process, mold capability, and required dimensional accuracy. Large-aperture Fresnel lenses can be manufactured for applications such as solar concentration and large-area optical systems. The maximum practical size should be determined based on the specific design and production requirements.
How do I choose the right Fresnel lens?
Start by defining the required optical function, such as imaging, light concentration, collimation, or beam shaping. Then consider key parameters including lens diameter, focal length, wavelength, field of view, beam angle, material, operating environment, and required optical performance. For a custom application, an optical engineer can evaluate these requirements and recommend the appropriate Fresnel lens type and design.
How can I get a custom Fresnel lens quote?
To request a custom Fresnel lens quote, provide the available optical specifications, drawings, 3D files, or application requirements. Key information may include lens diameter, focal length, wavelength, material, optical function, quantity, and target application. Our engineering team can review the requirements, evaluate manufacturability, and provide a customized quotation based on the design and production requirements.
