Fabrication of Binary Diffractive Lenses and the Application to LED Lighting for Controlling Luminosity Distribution

HTML  XML Download Download as PDF (Size: 1534KB)  PP. 67-73  
DOI: 10.4236/opj.2013.31011    6,465 Downloads   11,182 Views  Citations

ABSTRACT

We designed and fabricated two types of binary diffractive lenses using Electron beam lithography (EBL) on optical films film for controlling LED light. In the case of the binary diffractive convex lens with 2-mm focal length, it is possible to control the luminous intensity distribution. To improve the diffraction efficiency and realize a thin LED light source, the binary diffractive lenses with 100-μm-order focal length are effective. Furthermore we fabricated and characterized the binary diffractive concave lenses for application in LED lighting. It is found that white-light LEDs are strongly diffused by using the binary diffractive concave lenses.

Share and Cite:

A. Motogaito and K. Hiramatsu, "Fabrication of Binary Diffractive Lenses and the Application to LED Lighting for Controlling Luminosity Distribution," Optics and Photonics Journal, Vol. 3 No. 1, 2013, pp. 67-73. doi: 10.4236/opj.2013.31011.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.