Imaging harmonic diffractive lens for RGB LED radiation

G. I. Greisukh; E. G. Ezhov; A. I. Antonov

doi:10.1117/12.2598245

9 October 2021 Imaging harmonic diffractive lens for RGB LED radiation

G. I. Greisukh, E. G. Ezhov, A. I. Antonov

Proceedings Volume 11898, Holography, Diffractive Optics, and Applications XI; 1189824 (2021) https://doi.org/10.1117/12.2598245
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

The harmonic sawtooth microstructure allows the diffractive lens to operate with polychromatic radiation, in particular, with the radiation of RGB LEDs, but only with restrictions due to axial color and specific field curvature. Its reason is the jump in the working diffraction order with an increase of the wave angle of incidence. The permissible wave angles of incidence at the microstructure were estimated using the example of a harmonic diffractive lens made of crown-like plastic E48R.

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G. I. Greisukh, E. G. Ezhov, and A. I. Antonov "Imaging harmonic diffractive lens for RGB LED radiation", Proc. SPIE 11898, Holography, Diffractive Optics, and Applications XI, 1189824 (9 October 2021); https://doi.org/10.1117/12.2598245

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