An LED metalens for uniform illumination

Ivan Moreno

doi:10.1117/12.2632271

3 October 2022 An LED metalens for uniform illumination

Ivan Moreno

Proceedings Volume 12217, Current Developments in Lens Design and Optical Engineering XXIII; 122170I (2022) https://doi.org/10.1117/12.2632271
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

We develop a design method of flat optics for illumination. We describe a metalens design method for uniform illumination based on the ray mapping algorithm between a point source and a target. Based on metasurface refraction equation and a suitable ray mapping, a first order differential equation that represents the characteristics of the desired illumination distribution is presented. The metalens phase profile for uniform illumination is obtained by solving this simple equation. The results show that we can get a metalens for uniform illumination with a point source, for example a small light-emitting diode (LED).

Citation Download Citation

Ivan Moreno "An LED metalens for uniform illumination", Proc. SPIE 12217, Current Developments in Lens Design and Optical Engineering XXIII, 122170I (3 October 2022); https://doi.org/10.1117/12.2632271

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available