TY  - GEN
AU  - Vijayakumar,A
AU  - Bhattacharya,Shanti
TI  - Quasi-achromatic Fresnel zone lens with ring focus
SN  - 1539-4522
PY  - 2015///0521
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1364/AO.53.001970
ER  -