Lobre Products: Fresnel Lenses
Fresnel lenses are a highly specialised type of optical component, ideal for custom manufacturing of spotlights, photographic equipment and sensors.
Industrial Fresnel lenses are composed of concentric rings that function as “sub-lenses” (also known as Fresnel zones), making it possible to focus light with extreme precision.
Thanks to their segmented structure, Fresnel lenses enable compact and lightweight designs, significantly reducing weight and bulk compared to traditional lenses. This makes them particularly advantageous in applications where space and versatility are key requirements.
Keep reading to learn more or fill out the dedicated form on the Contact page to request a custom supply of optical components: we serve clients in both Italy and abroad.
Fresnel lenses:
function and geometry
As previously mentioned, the Fresnel lens design has so-called “Fresnel zones”: a series of concentric segments, each with a specific angle and thickness, that refract light toward a single focal point.
This geometric structure makes industrial Fresnel lenses thinner than other lens types. They can also be manufactured in a wide range of sizes and shapes: from extremely compact models to large or even oversized Fresnel lenses. Variants are available in flat card-like formats as well as traditional circular configurations.
For Ultraviolet (UV)
– Quartz (Fused Silica UV Grade)
– UV-Transmitting PMMA
For Visible Spectrum (VIS)
– N-BK7
– PMMA (Polymethylmethacrylate)
– Polycarbonate
For Infrared (IR)
– Germanium (Ge)
– Calcium Fluoride (CaF₂)
Materials for Fresnel lenses
Fresnel optics, designed to reduce weight and volume or to achieve large dimensions, can be manufactured using a variety of materials to ensure proper transmission across specific wavelengths in the UV, VIS or IR spectral bands.
Lobre’s highly specialised technicians can assist you in designing the most suitable Fresnel lenses for your projection devices and application requirements.
Keep reading to learn more or get in touch with us via the dedicated contact form.
Application Fields
Space||Aerospace||Vision Systems||I.T.S.||Biomedical||Security||Laser||Lighting
Space and Aerospace
Fresnel lenses for scientific applications are ideal for reducing weight and space in equipment mounted on satellites and spacecraft.
Vision Systems
Fresnel lenses can be integrated into vision systems to focus light even in confined spaces.
Speed Detection - I.T.S.
Used in modern traffic enforcement systems, Fresnel lenses offer compact design and long-range efficiency.
Biomedical
Fresnel lenses for optical applications are ideal for use in portable biomedical devices, ensuring lightness and compactness.
Security
The precision of industrial Fresnel lenses makes them suitable for compact security device applications.
Laser
Fresnel lenses are used in laser-based systems, such as targeting, measurement or alignment tools.
Lighting
Fresnel lenses for optical lighting, like those used in photography, provide optimal beam control in spotlights and other instruments.
Using a Fresnel lens permits excellent light focusing with significantly less thickness than a standard lens.
Thanks to their lightweight construction and compact design, Fresnel lenses are ideal for applications in scientific, industrial and lighting fields, and more.
Drawing on nearly 80 years of experience, Lobre professionals support clients throughout Italy and abroad in the development of custom lenses tailored to a wide variety of applications.
Email us to request more information about the optical components we can produce for you, or for a quote on Fresnel lenses.
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