Miniature aspheric lenses with spherical index gradients

Area of Science:

• Optics and Materials Science
• Microfabrication technologies

Background:

• Miniature lenses are crucial for compact optical systems.
• Fabricating lenses with specific refractive properties presents challenges.

Purpose of the Study:

• To develop a novel method for fabricating miniature aspheric and anamorphic plastic lenses.
• To control refractive-index gradients within plastic lenses.

Main Methods:

• Utilizing liquid droplets suspended on circular or elliptical pedestals.
• Employing computer-controlled syringe pumps to manage monomer flow.
• Forming refractive-index gradients via controlled liquid flow through a central conduit.

Main Results:

• Successfully fabricated miniature aspheric and anamorphic plastic lenses.
• Demonstrated precise control over refractive-index gradients.
• Established a scalable microfabrication technique.

Conclusions:

• The developed method offers a precise and scalable approach for creating customized miniature plastic lenses.
• This technique enables the fabrication of lenses with tailored optical properties for diverse applications.