{"version":"1.0","provider_name":"book\u2777net Buchscanner","provider_url":"https:\/\/book2net.net\/de\/","author_name":"multiadmin","author_url":"https:\/\/book2net.net\/de\/author\/multiadmin\/","title":"Fresnel-Linse - book\u2777net Buchscanner","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"96qdInGgaA\"><a href=\"https:\/\/book2net.net\/de\/2021\/04\/29\/fresnel-linse\/\">Fresnel-Linse<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/book2net.net\/de\/2021\/04\/29\/fresnel-linse\/embed\/#?secret=96qdInGgaA\" width=\"600\" height=\"338\" title=\"&#8222;Fresnel-Linse&#8220; &#8211; book\u2777net Buchscanner\" data-secret=\"96qdInGgaA\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>\n","description":"Unter diesem Begriff versteht man ein eindimensionales Linsensystem, das Korrekturen in nur einer Dimension durchf\u00fchrt. Bei den book2net Buchscannern \u00a0befindet sich das Lichtsystem in der Regel \u00a0r\u00fcckw\u00e4rtig angebracht, um unkontrollierte Reflexionen in die Optik, die \u00a0durch die W\u00f6lbung der Seite hervorgerufen werden, zu vermeiden."}