{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Evaluation of Multi-Focus Holographic Lenses","author_name":"Don A. Gregory","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00CQCOQIM.html\">Evaluation of Multi-Focus Holographic Lenses</a>","width":400,"height":300}