{"id":865,"date":"2022-07-04T09:13:41","date_gmt":"2022-07-04T09:13:41","guid":{"rendered":"https:\/\/www.shalomeo.com\/blog\/?p=865"},"modified":"2022-07-04T09:13:41","modified_gmt":"2022-07-04T09:13:41","slug":"germanium-lenses-surplus-optics","status":"publish","type":"post","link":"https:\/\/www.shalomeo.com\/blog\/germanium-lenses-surplus-optics\/865.html","title":{"rendered":"Germanium Lenses surplus optics"},"content":{"rendered":"\n<p>Germanium (Ge) has high density and has excellent transmission features of blocking UV but transmitting infrared from 2\u00b5m-14\u00b5m. Germanium has high refractive index and low dispersion and is used as IR-transmitters in these wavebands so desirable for IR lens design where its high refractive index allows otherwise impossible specifications to be met.<\/p>\n\n\n\n<p>Germanium transmits over 45% between 2-14\u00b5m up to 45\u00b0C so BBAR coatings are advisable as use of AR coatings increases transmission to over 80% between 3\u00b5m-14\u00b5m. Diamond like coating (DLC) are also applied for harsh environments.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.shalomeo.com\/Infrared-Optics\/Infrared-Lenses\/Ge-Lenses\/product-72.html\" target=\"_blank\" rel=\"noreferrer noopener\">Germanium lenses<\/a><\/strong> are typically used in thermal imaging cameras. Germanium lenses are useful for wide-angle lenses. Germanium is also used for FTIR (Fourier Transformed Infrared) and FLIR (Forward Looking Infrared) and spectroscopy systems.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Germanium (Ge) has high density and has excellent  &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[36],"_links":{"self":[{"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/posts\/865"}],"collection":[{"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/comments?post=865"}],"version-history":[{"count":0,"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/posts\/865\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/media?parent=865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/categories?post=865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shalomeo.com\/blog\/wp-json\/wp\/v2\/tags?post=865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}