What are the advantages of Fresnel lenses?
Thin and portable: significant reduction in thickness and weight for applications with stringent weight and space requirements.
Low cost: low material usage and simple manufacturing process.
Flexible design: different focal lengths and optical properties can be designed according to requirements.

What are the disadvantages of Fresnel lenses?
Aberration problem: due to the discretization of the structure, some aberration may exist.
Surface susceptibility: the ring structure is prone to dust accumulation or damage, affecting optical performance.
Material limitations: plastic materials have poor heat resistance and durability.

Highly Recommended Optical Fresnel Lenses from Yutai Optics:
Optical Fresnel Lenses
Rectangular Fresnel Lenses
Liner Fresnel Lenses
PIR Fresnel Lenses