{"id":1285,"date":"2023-11-30T19:01:47","date_gmt":"2023-11-30T19:01:47","guid":{"rendered":"https:\/\/live-optics-wp.pantheonsite.io\/oscoutreach\/?p=1285"},"modified":"2024-03-05T17:28:24","modified_gmt":"2024-03-05T17:28:24","slug":"near-infrared-camera","status":"publish","type":"post","link":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/near-infrared-camera\/","title":{"rendered":"Near Infrared Camera"},"content":{"rendered":"\n<p><strong>Overview<\/strong>: An infrared camera can allow us to see wavelengths beyond what our eyes can detect. Near IR can be used for medical diagnostics, to study agriculture health and even in seeing different layers of art.<\/p>\n\n\n\n<p>\u200b\u200b<strong>Supplies<\/strong>: Near Infrared camera, tripod, tv, camera to tv connection cable, camera power cable, red painting (Wilbur, Meinel, OSC logo), $5, or $10 bill<\/p>\n\n\n\n<p><strong>Objectives<\/strong>: View objects through a different set of &#8220;eyes&#8221;. Spot what is under a layer of paint in artwork. See how near IR can be used as a security measure for currency.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p><strong>Setup:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unscrew the bolt and nut attached to the camera base<\/li>\n\n\n\n<li>Attach the camera base to the tripod with the bolt and nut<\/li>\n\n\n\n<li>Plug in the power cord to the power side of the camera cable splitter<\/li>\n\n\n\n<li>Attach the BNC cable end to the camera cable splitter, insert the other end into the green plug on the back of the tv<\/li>\n\n\n\n<li>Plug in the tv and turn it on<\/li>\n\n\n\n<li>Check that the light sensor on the camera is taped over<\/li>\n<\/ul>\n\n\n\n<p><strong>How to run the demo:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Show the red painting in room light<\/li>\n\n\n\n<li>Turn off the lights if possible (the images show up better)<\/li>\n\n\n\n<li>Put the red painting in the field of view of the camera and show that there is an image beneath the red paint<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"828\" height=\"1024\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/PXL_20240305_171013028-828x1024.jpg\" alt=\"\" class=\"wp-image-1642\" style=\"width:311px;height:auto\" srcset=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/PXL_20240305_171013028-828x1024.jpg 828w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/PXL_20240305_171013028-243x300.jpg 243w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/PXL_20240305_171013028-768x949.jpg 768w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/PXL_20240305_171013028-1242x1536.jpg 1242w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/PXL_20240305_171013028-1657x2048.jpg 1657w\" sizes=\"auto, (max-width: 828px) 100vw, 828px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"892\" height=\"1024\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/Wilbur-892x1024.png\" alt=\"\" class=\"wp-image-1640\" style=\"width:335px;height:auto\" srcset=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/Wilbur-892x1024.png 892w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/Wilbur-261x300.png 261w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/Wilbur-768x881.png 768w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/Wilbur.png 1124w\" sizes=\"auto, (max-width: 892px) 100vw, 892px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Show the security strip on the back of a $5 or $10 bill<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"636\" height=\"636\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/am4115-fjt_1.jpg\" alt=\"\" class=\"wp-image-1636\" style=\"width:325px;height:auto\" srcset=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/am4115-fjt_1.jpg 636w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/am4115-fjt_1-300x300.jpg 300w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/am4115-fjt_1-150x150.jpg 150w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/am4115-fjt_1-90x90.jpg 90w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/03\/am4115-fjt_1-75x75.jpg 75w\" sizes=\"auto, (max-width: 636px) 100vw, 636px\" \/><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p><strong>What\u2019s Happening?<\/strong><\/p>\n\n\n\n<p>Paint pigments become invisible within the near infrared wavelength range. Near IR cameras project IR light onto an object. The image the camera picks up therefore does not see the painting that our eyes see, but rather sees below the painting. Many artists would sketch with mediums other than paint and then make changes to the final product in paint. We can see those sketches with the near IR camera. <\/p>\n\n\n\n<p>The same can be done with currency. An ink that is invisible in the near IR can be added as a stripe on a bill for security reasons.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p><strong>Learn more:<\/strong>&nbsp;(external links)<\/p>\n\n\n\n<p class=\"wp-embed-aspect-16-9 wp-has-aspect-ratio\"><a href=\"https:\/\/www.youtube.com\/watch?v=6mjPi0iVmtQ&amp;list=PL6DwVv2hudGZHkS34wAV-4NQ7Fw3zPTxf&amp;index=3\">Near IR demo<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>See what is invisible to the naked eye with a special camera<\/p>\n","protected":false},"author":130,"featured_media":1291,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1285","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electromagnetic-spectrum"],"_links":{"self":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts\/1285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/users\/130"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/comments?post=1285"}],"version-history":[{"count":12,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts\/1285\/revisions"}],"predecessor-version":[{"id":1646,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts\/1285\/revisions\/1646"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/media\/1291"}],"wp:attachment":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/media?parent=1285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/categories?post=1285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/tags?post=1285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}