{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Geometrical and Physical Optics","author_name":"R S Longhurst","thumbnail_url":"https://www.ebooknetworking.net/books/B00/10W/bigB0010WR5VO.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0010WR5VO.html\">Geometrical and Physical Optics</a>","width":400,"height":300}