{"version":"1.0","provider_name":"Avian Technologies","provider_url":"https:\/\/aviantechnologies.com\/avianmirror","author_name":"Dave Wyble","author_url":"https:\/\/aviantechnologies.com\/avianmirror\/author\/dave\/","title":"What We Measure, Part 1: Reflectance - Avian Technologies","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EPvRNNnEVu\"><a href=\"https:\/\/aviantechnologies.com\/avianmirror\/2019\/01\/25\/what-we-measure-part-1-reflectance\/\">What We Measure, Part 1: Reflectance<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/aviantechnologies.com\/avianmirror\/2019\/01\/25\/what-we-measure-part-1-reflectance\/embed\/#?secret=EPvRNNnEVu\" width=\"600\" height=\"338\" title=\"&#8220;What We Measure, Part 1: Reflectance&#8221; &#8212; Avian Technologies\" data-secret=\"EPvRNNnEVu\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\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\/\/# sourceURL=https:\/\/aviantechnologies.com\/avianmirror\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"The material properties we measure are reflectance and transmittance, or more typically, reflectance factor and transmittance factor. Transmittance and reflectance are the more general measurements, but as we will see below, when we compare a sample and a physical reference standard, measured under a specific optical configuration, the proper terms are &#8220;transmittance factor&#8221; and &#8220;reflectance [&hellip;]","thumbnail_url":"https:\/\/aviantechnologies.a2hosted.com\/aviantech\/wp-content\/uploads\/ReflectanceMath1_transparent-150x150.png"}