{"id":353,"date":"2014-10-16T12:48:23","date_gmt":"2014-10-16T16:48:23","guid":{"rendered":"http:\/\/localhost:8888\/iridian\/?page_id=353"},"modified":"2017-12-17T17:29:16","modified_gmt":"2017-12-17T22:29:16","slug":"stray-light-black-absorbers","status":"publish","type":"page","link":"https:\/\/iridian.com.cn\/en\/specialty-filters\/stray-light-black-absorbers\/","title":{"rendered":"Stray Light (Black) Absorbers"},"content":{"rendered":"<p>For many applications, it is useful to have surfaces that can absorb any\u00a0light that falls on them.\u00a0For instance, on the inside of optical instruments, this type of surface would be used to\u00a0minimize the amount of\u00a0stray ambient light that reaches an exit slit or optical detector.\u00a0In the visible wavelength range, this type of surface would look black, hence the name &#8220;black&#8221; or &#8220;stray light&#8221; absorber.<\/p>\n<p>Iridian&#8217;s stray light absorbers work using the principle of\u00a0optical interference and can be\u00a0designed for almost any wavelength range and over different angles of incidence. These coatings are made of metal and oxide materials making them especially robust with low out gassing properties.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3376 size-full\" src=\"https:\/\/iridian.com.cn\/wp-content\/uploads\/2014\/10\/black-absorbers-SVS.jpg\" alt=\"black-absorbers-SVS\" width=\"770\" height=\"337\" srcset=\"https:\/\/iridian.com.cn\/wp-content\/uploads\/2014\/10\/black-absorbers-SVS.jpg 770w, https:\/\/iridian.com.cn\/wp-content\/uploads\/2014\/10\/black-absorbers-SVS-480x210.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 770px, 100vw\" \/><\/p>\n<p>Iridian&#8217;s black absorbers have been used in\u00a0space applications for many years to provide high contrast surfaces.\u00a0In addition, they have been used for the inside of optical instruments to reduce stray\u00a0light.\u00a0These absorbers can be deposited onto metal foils, cut up and applied to different surfaces or applied directly onto an optical component and patterned.<\/p>\n<p>Example of black absorber coating with a reflectance &lt; 3.5% from 300 to 1700 nm:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-354\" src=\"https:\/\/iridian.com.cn\/wp-content\/uploads\/2014\/10\/Black-Absorber-Coating.jpg\" alt=\"Black Absorber Coating\" width=\"898\" height=\"501\" srcset=\"https:\/\/iridian.com.cn\/wp-content\/uploads\/2014\/10\/Black-Absorber-Coating.jpg 898w, https:\/\/iridian.com.cn\/wp-content\/uploads\/2014\/10\/Black-Absorber-Coating-480x268.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 898px, 100vw\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>[nice-button link=&#8221;\/company\/contact-us&#8221;] Contact Us For More Details[\/nice-button]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For many applications, it is useful to have surfaces that can absorb any light that falls on them.  For instance, on the inside of optical instruments, this type of surface would be used to minimize the amount of stray ambient light&#8230;<\/p>\n","protected":false},"author":147,"featured_media":0,"parent":337,"menu_order":197,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-353","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/pages\/353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/users\/147"}],"replies":[{"embeddable":true,"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/comments?post=353"}],"version-history":[{"count":0,"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/pages\/353\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/pages\/337"}],"wp:attachment":[{"href":"https:\/\/iridian.com.cn\/en\/wp-json\/wp\/v2\/media?parent=353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}