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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">浅谈激光美白的原理 </h1> <p class="xg1"> 时间：2015-12-29 08:59<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(2041)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=3807&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>爱美之心，人皆有之，但 随着年华逝去，再美丽的脸也经不住时光的打磨，逐渐出现各种色斑、痘疤等。于是面部激光美白也成了很多女性的首选，但是她们都不大了解激光美白的原理。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><font face="宋体" size="3"> </font><p align="center" style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><br></span></p><p align="center" style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><font face="Tahoma"><a class="opattach" href="javascript:;"><img width="257" height="170" class="cur1" style="width: 440px; height: 313px;" onclick="insertImage('data/attachment/portal/201512/29/090511zgxdt8hb822eb4et.jpg');" src="http://www.oecr.com/data/attachment/portal/201512/29/090511zgxdt8hb822eb4et.jpg.thumb.jpg"></a><a class="opattach" href="javascript:;"><span class="opattach_ctrl"> </span> </a><a class="opattach" href="javascript:;"> </a></font><a class="opattach" href="javascript:;"></a></span></p><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'> 爱美之心，人皆有之，但 随着年华逝去，再美丽的脸也经不住时光的打磨，逐渐出现各种色斑、痘疤等。于是面部<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>美白也成了很多女性的首选，但是她们都不大了解激光美白的原理。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'> 基本上年轻时色素沉淀会慢慢消失，因为正常的情况，麦拉宁黑色素会从黑色素细胞转移至角化细胞后，随着角化的过程，让黑色素从肌肤底层一直向外推移到角质层，最后随着老废角质一起被剥除。但伴随年纪与体质的不同，淡化的时间就会拉长，新陈代谢变差，自然色素就会越来越难消失。想尝试<a href="http://medicine.oecr.com" target="_blank" class="relatedlink">医疗</a>美容雷射疗程的人，也要术后照顾好脆弱肌肤，一旦结痂脱皮后，就要勤防晒，多密集美白，而且洗澡水温不宜过高，以免延长红肿期，否则会因为照顾不周，美白肌没有，却换来色素不均的花花脸呢<span lang="EN-US">!</span></span></p><p align="center" style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><span lang="EN-US"><img width="320" height="178" class="cur1" style="width: 472px; height: 321px;" onclick="insertImage('data/attachment/portal/201512/29/090520xff89crr7dh7h3fd.jpg');" src="http://www.oecr.com/data/attachment/portal/201512/29/090520xff89crr7dh7h3fd.jpg.thumb.jpg"></span></span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>激光美白利用激光作用皮肤时所产生的选择性<a href="http://solar.oecr.com" target="_blank" class="relatedlink">光热</a>作用，它能以不同波长的激光光束分别深入肌肤各个层次，作用于色素团、异常毛细血管、毛囊等皮肤病灶，从而达到解决皮肤问题的良好效果，使肌肤真正的从真皮层开始优化，结合皮肤的正常生理周期达到真正的美白。激光美白是目前最先进的美白技术，是美容界的时尚，其安全可靠显着的疗效，创造了无数的美白神奇。激光美白主要利用的就是激光的选择性光热解的原理。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>激光在作用皮肤的时候会瞬间产生高能量，然后被皮肤病变部位的色素吸收，然后激光就会将色素击碎，碎屑会身体的淋巴循环排出体外，从而达到彻底治疗的目的。激光去除了面部的色斑、色素沉着等病变，恢复了肌肤的本色，到了美白的目的。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>简单的介绍一下，上面所说的选择性光热作用。</span></p><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>选择性光热作用的主要内容：当入射激光的波长与靶色基自身故有的吸收峰匹配，且照射时间短于靶色基的热弛豫时间（<span lang="EN-US">TRT</span>）时，就可以选择性地破坏靶色基，而不损伤周围正常组织或仅造成轻度损伤，从而达到无创伤治疗的效果。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>选择性光热作用包括以下几要素：</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span lang="EN-US" style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><span style="mso-spacerun: yes;"> </span>1.</span><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>合适的波长：每一色基均有自身特有的吸收曲线，如氧合血红蛋白就有<span lang="EN-US">412nm</span>、<span lang="EN-US">542nm</span>、<span lang="EN-US">577nm 3 </span>个吸收峰。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span lang="EN-US" style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><span style="mso-spacerun: yes;"> </span>2.</span><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>合适的脉宽：短脉冲激光能量释放的持续时间是通过脉宽（脉冲持续时间）反映出来的。根据选择性光热作用原理，脉宽应短于靶色基的热弛豫时间，这就使激光产生的热能主要局限于靶色基，而很少弥散到周围正常组织，造成损伤。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span lang="EN-US" style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><span style="mso-spacerun: yes;"> </span>3.</span><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>足够的能量：如调<span lang="EN-US">Q </span>技术使短脉冲激光得以在极短的时间内释放出高能量，功率可高达<span lang="EN-US">109</span>——<span lang="EN-US">1012w,</span>足以摧毁靶色基。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 21pt;"><span lang="EN-US" style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'><span style="mso-spacerun: yes;"> </span></span><span style='font-family: "微软雅黑","sans-serif"; font-size: 12pt;'>脉宽越短，选择性作用就越强，比如去纹身就必须使用<span lang="EN-US">ns</span>级和<span lang="EN-US">ps</span>级，<span lang="EN-US">ps</span>级对正常组织的损伤更小，但是目前市面上的机器不多。主要还是<span lang="EN-US">ns</span>级调<span lang="EN-US">Q</span>激光。</span></p><font face="宋体" size="3"> </font></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" 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