{"id":2919,"date":"2017-04-24T00:00:00","date_gmt":"2017-04-24T00:00:00","guid":{"rendered":"https:\/\/live-optics-wp.pantheonsite.io\/loft\/graves-on-infrared-deflectometry\/"},"modified":"2025-04-02T23:34:45","modified_gmt":"2025-04-02T23:34:45","slug":"graves-on-infrared-deflectometry","status":"publish","type":"post","link":"https:\/\/wp.optics.arizona.edu\/loft\/graves-on-infrared-deflectometry\/","title":{"rendered":"Graves on Infrared Deflectometry"},"content":{"rendered":"<div class=\"entry-content\">\n<div class=\"podcast_meta\">\n<aside><div class=\"wp-playlist wp-audio-playlist wp-playlist-light\">\n\t\t\t<div class=\"wp-playlist-current-item\"><\/div>\n\t\t<audio controls=\"controls\" preload=\"none\" width=\"838\"\n\t\t\t><\/audio>\n\t<div class=\"wp-playlist-next\"><\/div>\n\t<div class=\"wp-playlist-prev\"><\/div>\n\t<noscript>\n\t<ol>\n\t\t<li><a href='https:\/\/wp.optics.arizona.edu\/loft\/wp-content\/uploads\/sites\/6\/2017\/04\/Graves-on-Infrared-Deflectometry.mp3'>Graves on Infrared Deflectometry<\/a><\/li>\t<\/ol>\n\t<\/noscript>\n\t<script type=\"application\/json\" class=\"wp-playlist-script\">{\"type\":\"audio\",\"tracklist\":true,\"tracknumbers\":true,\"images\":true,\"artists\":true,\"tracks\":[{\"src\":\"https:\/\/wp.optics.arizona.edu\/loft\/wp-content\/uploads\/sites\/6\/2017\/04\/Graves-on-Infrared-Deflectometry.mp3\",\"type\":\"audio\/mpeg\",\"title\":\"Graves on Infrared Deflectometry\",\"caption\":\"\",\"description\":\"\\\"Graves on Infrared Deflectometry\\\" from The Spotlight Report by Logan Graves, Xiangyu Guo. Released: 2017.\",\"meta\":{\"artist\":\"Logan Graves, Xiangyu Guo\",\"album\":\"The Spotlight Report\",\"year\":\"2017-04-24\",\"length_formatted\":\"43:53\"},\"image\":{\"src\":\"https:\/\/wp.optics.arizona.edu\/loft\/wp-includes\/images\/media\/audio.svg\",\"width\":48,\"height\":64},\"thumb\":{\"src\":\"https:\/\/wp.optics.arizona.edu\/loft\/wp-includes\/images\/media\/audio.svg\",\"width\":48,\"height\":64}}]}<\/script>\n<\/div>\n\t<\/p>\n<\/aside>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2385\" src=\"https:\/\/wp.optics.arizona.edu\/loft\/wp-content\/uploads\/sites\/6\/2025\/04\/graves-300x300.jpg\" alt=\"graves\" width=\"300\" height=\"300\" \/><\/p>\n<p>This week we discuss infrared deflectometry and its applications towards large optics fabrication. By utilizing a long wavlength, surfaces that are not reflective in the visible are able to be tested using deflectometry. Some of the challenges that went into the IR deflectometry system, including source design, geometry considerations, and source errors are discussed. Additionally, Graves comments on his experience in being part of the team that performed metrology for the 4.2 m DKIST primary mirror.<\/p>\n<p>For more information on infrared deflectometry please read:<\/p>\n<p><a href=\"http:\/\/wp.optics.arizona.edu\/loft\/wp-content\/uploads\/sites\/6\/2017\/04\/IR_Deflectometry_SPIE_Newsroom_2015_DKim.pdf\">IR_Deflectometry_SPIE_Newsroom_2015_DKim<\/a><\/p>\n<p>Thank you for listening to this weeks episode. If you have any questions or comments please let us know. Additionally, we are always looking for new topics to cover, so please email or comment to let us know who should be in the spotlight in the future.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This week we discuss infrared deflectometry and its applications towards large optics fabrication. By utilizing a long wavlength, surfaces that are not reflective in the visible are able to be tested using deflectometry. Some of the challenges that went into the IR deflectometry system, including source design, geometry considerations, and source errors are discussed. Additionally, Graves comments on his experience<\/p>\n","protected":false},"author":91,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[37,42],"class_list":["post-2919","post","type-post","status-publish","format-standard","hentry","category-news","tag-deflectometry","tag-infrared"],"_links":{"self":[{"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/posts\/2919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/users\/91"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/comments?post=2919"}],"version-history":[{"count":1,"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/posts\/2919\/revisions"}],"predecessor-version":[{"id":3090,"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/posts\/2919\/revisions\/3090"}],"wp:attachment":[{"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/media?parent=2919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/categories?post=2919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/loft\/wp-json\/wp\/v2\/tags?post=2919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}