1.0尊正资讯https://zunzheng.com/newsrich600338<blockquote class="wp-embedded-content" data-secret="Ht90jDnO3m"><a href="https://zunzheng.com/news/archives/20388">光源的显色性与显色指数（下）</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://zunzheng.com/news/archives/20388/embed#?secret=Ht90jDnO3m" width="600" height="338" title="《 光源的显色性与显色指数（下） 》—尊正资讯" data-secret="Ht90jDnO3m" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !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); /* ]]> */ </script> https://zunzheng.com/news/wp-content/uploads/2021/02/图片25.png573380我国国家标准GB/T 5702-2003《光源显色性评价方法》中规定用普朗克辐射体（色温低于5000K）和组合日光（色温高于5000K）做参照光源。为了检验物体在待测光源下所显现的颜色与在参照光源下所显现的颜色相符的程度，采用“一般显色性指数”作为定量评价指标。显色性指数最高100。显色性指数的高低，就表示物体在待测光源下“变色”和“失真”的程度。