Fresnel was this French physicist who had the idea to take a glass lens and cut grooves in it in concentric circles.
فرنل يه فيزيکدان فرانسوي بود که اين ايده رو داشت که لنزهاي شيشيه اي رو برداري توش خطهايي به صورت دايره اي و متمرکز بکشي