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Our advantages
  • Best optical performance at IR
  • Qualified with global buyers
  • Handful experience with R&D



Technical information


Focal Length (mm) = -300
Size (mm) : 300 x 300
Pitch (mm) : Variable loops
Thickness (mm) : 2
Material : PMMA
Type : Concave , Minus focus



◈ Efficiency and F number

F=focal legnth/Diameter

From F1.2, the efficency is dramatically droped. It shows there is a certain ratio between focal length of fresnel and diameter of lens.

Bigger size Lens is not always the answer.



◈ Comparing transmittance of SOG(Silicone On Glass) and PMMA

Our Optical PMMA has higher transmitive than glass, which is 92~95%, and absorption in visual ray is almost 0%




We are happy to work with individual inventor and developing company.
Custom Design is available.

※ Maximun capacity
Max size : Ø1600mm
Groove Pitch : 0.07~2mm
Thickness : 0.4~10mm

According to our customer’s needs, we recommend ideal solution from our 106 existing products, which are increasing in diversity.
We are prepared to take from design to prototype to volume production.

Email : Kim.diypro@gmail.com
Tel : +82 70-7605-1652

English webpage : www.FresnelFatory.com

Please visit our Developed Case List and see our achievements.

Fast and high quality delivery

Our company makes delivery all over the country

Quality assurance and service

We offer only those goods, in which quality we are sure

Returns within 30 days

You have 30 days to test your purchase