{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Ray and Wave Theory of Lenses (Cambridge Studies in Modern Optics, Series Number 15)","author_name":"Walther, A.","thumbnail_url":"https://www.ebooknetworking.net/books/052/102/big0521028299.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0521028299.html\">The Ray and Wave Theory of Lenses (Cambridge Studies in Modern Optics, Series Number 15)</a>","width":400,"height":300}