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Square LED Fresnel Lens FL406mm

Specification

[Product Name] Custom Square Fresnel Lens Manufacturer

[Brand] YuYing
[Material] PMMA
[Available Dimensions] Up to Φ300mm
[Focal Length] 406mm
[Groove Pitch] 0.5mm

[Optical Structure] Precision Fresnel Lens
[Customization Service] OEM & ODM Supported

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Square LED Fresnel Lens 406mm Focal Length with Optional Coating for Precision Optical Lighting Systems

This PMMA Square Fresnel Lens is designed for precision optical systems requiring controlled beam shaping and stable light distribution. Featuring a 406mm focal length and 0.5mm fine groove structure, it delivers efficient light focusing with reduced optical loss. The square geometry supports easy integration into LED modules, projection systems, and industrial lighting assemblies. Optional optical coating enhances durability and environmental stability, making it suitable for both indoor and engineered lighting applications.

Manufactured with optical-grade PMMA, the lens supports customization within 300×250mm dimensions for diverse optical system requirements.

Customized Services

1. High precision: Tip Width (R) ≤ 0.005mm, with loop distance as small as 0.02mm.
2. Molds capacity: We can process lens molds ranging from as small as 1mm to as large as 2200mm in diameter, accommodating a wide variety of specifications.
3. Focus Distance Design: We can design and manufacture lenses with focal lengths as short as 1mm and as long as 10 meters or more, suitable for different application scenarios.
4. Superior Surface Finish: Surface roughness Ra ≤ 0.014μm (14nm), with Ra ≤ 0.002μm achievable within a 150mm diameter, ideal for high-performance applications

Key Features

Advantages

Square geometry for simplified integration into LED and optical assemblies
0.5mm precision grooves for stable beam shaping and uniform illumination
Optional optical coating improves durability and environmental resistance
Supports customized dimensions up to 300×250mm
Lightweight PMMA structure ensures high transmission efficiency
Suitable for industrial, projection, and precision LED lighting systems
OEM/ODM customization available for focal length and coating options

Technical Specifications

Focal Length: 406mm
Groove Pitch: 0.5mm
Maximum Size: 300×250mm
Shape: Square Fresnel Lens
Material: Optical Grade PMMA
Optional Feature: Anti-reflective / Protective Coating

Customer also Ask

Q: Why choose a square Fresnel lens instead of circular?
A: Square lenses integrate more efficiently into flat LED panels and modular optical systems, reducing wasted space.

Q: What is the benefit of coating on a Fresnel lens?
A: Coating improves optical durability, reduces reflection loss, and enhances environmental resistance.

Q: Can this lens be customized?
A: Yes. It supports OEM customization within 300×250mm and can be adapted for different optical systems.

Q: What does the 406mm focal length provide?
A: It enables stable beam focusing and controlled light projection for medium to long-distance illumination systems.