{"id":1943,"date":"2021-08-23T11:48:38","date_gmt":"2021-08-23T18:48:38","guid":{"rendered":"https:\/\/www.crystalfontz.com\/blog\/?p=1943"},"modified":"2021-08-23T15:13:53","modified_gmt":"2021-08-23T22:13:53","slug":"transparent-oled-glasses","status":"publish","type":"post","link":"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-glasses\/","title":{"rendered":"Transparent OLED Smart Glasses"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Kevin Choi&rsquo;s Transparent OLED Glasses with Fresnel Lenses<\/h2>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/close-up-on.jpg\" alt=\"\" class=\"wp-image-1947 size-full\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/close-up-on.jpg 800w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/close-up-on-300x200.jpg 300w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/close-up-on-120x80.jpg 120w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/close-up-on-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"><\/figure><div class=\"wp-block-media-text__content\">\n<p>We&rsquo;ve seen a lot of people making glasses out of our transparent OLEDs, but this is the first iteration we&rsquo;ve seen that uses lenses to make the display viewable. Kevin Choi (<a href=\"https:\/\/www.instagram.com\/k.choiii\/\">@k.choiii<\/a>) shared some details of his build with us. Check out his page for more images (story highlight).<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">From Kevin:<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Part List:<\/h3>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"800\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/BOM.jpg\" alt=\"picture of a piece of paper that says: Parts list:\nTP4056 battery charge protection circuit\nFresnel magnifying lenses\nGlasses\n\nvarious components and pens are visible on the edge of the paper\" class=\"wp-image-1945 size-full\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/BOM.jpg 640w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/BOM-240x300.jpg 240w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/BOM-120x150.jpg 120w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\"><\/figure><div class=\"wp-block-media-text__content\">\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.crystalfontz.com\/product\/cfal12856a00151b-128x56-transparent-oled-screen\">Transparent OLED<\/a><\/li><li><a href=\"https:\/\/www.crystalfontz.com\/product\/cfa10105-oled-breakout-board\">OLED Breakout Board<\/a><\/li><li>Raspberry Pi Zero W<\/li><li>Adafruit DS3231 RTC module<\/li><li>3.7v 300mAh battery<\/li><li>TP4056 battery charge protection circuit<\/li><li>Fresnel magnifying lenses<\/li><li>Glasses<\/li><\/ul>\n<\/div><\/div>\n\n\n\n<p>Design inspiration for these glasses came from <a href=\"https:\/\/www.youtube.com\/watch?v=Sj9ZQ20cgLA\">JLaservideo&rsquo;s EDITH smart glasses<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Description<\/h3>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"582\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/pi-connections-e1629743291946.jpg\" alt=\"\" class=\"wp-image-1949 size-full\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/pi-connections-e1629743291946.jpg 640w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/pi-connections-e1629743291946-300x273.jpg 300w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/pi-connections-e1629743291946-120x109.jpg 120w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\"><\/figure><div class=\"wp-block-media-text__content\">\n<h4 class=\"wp-block-heading\">Connections<\/h4>\n\n\n\n<p>These glasses are running on a Raspberry Pi Zero W using the <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/i2c\/\" target=\"_self\" title='I2C or IIC stands for \"Inter-Integrated Circuit,\" and was originally intended as a way to communicate from one IC to another, usually on the same PCB. I2C is a bi-directional serial bus that was originally created by Philips (now NXP). Detailed Definition In a typical I2C application, there will be one master, and one or&hellip;' class=\"encyclopedia\">I2C<\/a> interface. Four wires are soldered from Pi pins 1, 3, 5, and 6 to the 3.3v, D1, D0, and GND pins respectively on the Crystalfontz CFA 10105 breakout board.  The same four pins are also connected to an Adafruit real time clock to maintain time, even when the glasses are turned off.<\/p>\n\n\n\n<p>On the breakout board, jumper pins SDA=SDA and BS1=1 are soldered for I2C interface. The male pin headers were desoldered from the breakout board for a lower-profile design, and also so that the PCB could sit next to my face without poking me.<\/p>\n\n\n\n<p>The breakout board is then connected to the Crystalfontz transparent <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/oled\/\" target=\"_self\" title=\"OLED stands for Organic Light Emitting Diode. OLEDs are used to make OLED Displays, which can either be PMOLED (Passive Matrix OLED) or AMOLED (Active Matrix OLED). Crystalfontz carries a full line of OLED modules. Detailed Definition What makes OLEDs useful for display construction is that they can be fabricated in bulk. For instance, to&hellip;\" class=\"encyclopedia\">OLED<\/a> display. <\/p>\n\n\n\n<p>The RPi also has pins 14 and 16 soldered to a small normally-open push button to allow for various GPIO stuff, such as killing and starting the python script which displays the time and date. <\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/power.jpg\" alt=\"\" class=\"wp-image-1948 size-full\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/power.jpg 800w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/power-300x200.jpg 300w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/power-120x80.jpg 120w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/power-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"><\/figure><div class=\"wp-block-media-text__content\">\n<h4 class=\"wp-block-heading\"> Power<\/h4>\n\n\n\n<p>For power, a 3.7v 300mAh LiPo soldered to a TP4056 charge protection module is then soldered to the pads on the back of the RPi behind the micro-USB power port. <\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/from-inside.jpg\" alt=\"\" class=\"wp-image-1950 size-full\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/from-inside.jpg 800w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/from-inside-300x200.jpg 300w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/from-inside-120x80.jpg 120w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/from-inside-768x512.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"><\/figure><div class=\"wp-block-media-text__content\">\n<h4 class=\"wp-block-heading\">Optics<\/h4>\n\n\n\n<p>To see the display itself, some optical magnification was needed as our eyeballs cannot focus on anything this close to our face. I used eight total Fresnel magnifying lenses, with four layered on the inside of the glasses, four more layered on the outside of the glasses, and then finally the transparent OLED outside of that.<\/p>\n\n\n\n<p>Magnifiers are most effective when there is some distance between the magnifier and the thing you want to see, so there are about 7mm between the two Fresnel groupings, and another 7 between the Fresnel and the OLED. The<br>number of Fresnel lenses used and the distance needed between the three layers will probably be very different if you wear corrective glasses.<\/p>\n\n\n\n<p>Viewability of the display itself is crystal clear, but because I have essentially made a fixed focal length lens to view it, everything past the display is very blurry. A bit like wearing a very strong prescription pair of glasses if you have 20\/20 vision, or vice versa if you don&rsquo;t. <\/p>\n<\/div><\/div>\n\n\n\n<p>So really, the theoretical benefits of a transparent display allowing you to see through it are negated and it may as well be a regular non-transparent display. But from a sci-fi perspective they still look super cool. <\/p>\n\n\n\n<p>Since the display only covers half of the right eye, depth perception still works just fine so once I look away from the display. It&rsquo;s easy to kind of &ldquo;unfocus&rdquo; on it and let it fade away into the foreground while I focus on everything else in the distance. However my entire far right peripheral is completely covered by the Pi and the breakout board, which is something I will try to tackle in a V2.<\/p>\n\n\n\n<p><em>Images and text were provided by Kevin Choi, with some edits by Crystalfontz.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other Transparent OLED Glasses Projects<\/h2>\n\n\n\n<p>Have you seen ones not listed here? <a href=\"https:\/\/forum.crystalfontz.com\/threads\/faq-transparent-oled-blog-post.5816\/\">Share a link<\/a>!<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"container-lazyload preview-lazyload container-youtube js-lazyload--not-loaded\"><a href=\"https:\/\/www.youtube.com\/watch?v=zZZ-Ea8RyjQ\" class=\"lazy-load-youtube preview-lazyload preview-youtube\" data-video-title=\"The Worst Wearable Computer\" title='Play video \"The Worst Wearable Computer\"'>https:\/\/www.youtube.com\/watch?v=zZZ-Ea8RyjQ<\/a><noscript>Video can&rsquo;t be loaded because JavaScript is disabled: <a href=\"https:\/\/www.youtube.com\/watch?v=zZZ-Ea8RyjQ\" title=\"The Worst Wearable Computer\">The Worst Wearable Computer (https:\/\/www.youtube.com\/watch?v=zZZ-Ea8RyjQ)<\/a><\/noscript><\/div>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"et\" dir=\"ltr\">Arduglasses &ndash; Transparent OLED Arduboy Glasses<a href=\"https:\/\/t.co\/OcRnwZPhx2\">https:\/\/t.co\/OcRnwZPhx2<\/a> <a href=\"https:\/\/t.co\/n9Z0wltGlY\">pic.twitter.com\/n9Z0wltGlY<\/a><\/p>&mdash; Kevin Bates (@bateskecom) <a href=\"https:\/\/twitter.com\/bateskecom\/status\/1374395236202418185?ref_src=twsrc%5Etfw\">March 23, 2021<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">More About the Transparent OLED:<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-crystalfontz-lcd-blog wp-block-embed-crystalfontz-lcd-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"5MsITO3Afu\"><a href=\"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-on-raspberry-pi\/\">Transparent OLED on Raspberry Pi<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&ldquo;Transparent OLED on Raspberry Pi&rdquo; &mdash; Crystalfontz LCD Blog\" src=\"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-on-raspberry-pi\/embed\/#?secret=txgmfwrOKK#?secret=5MsITO3Afu\" data-secret=\"5MsITO3Afu\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><figcaption> <\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-crystalfontz-lcd-blog wp-block-embed-crystalfontz-lcd-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"F5wTM2rNKp\"><a href=\"https:\/\/www.crystalfontz.com\/blog\/crystalfontz-in-the-wild-volumetric-display\/\">Crystalfontz in the Wild: Volumetric Display<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&ldquo;Crystalfontz in the Wild: Volumetric Display&rdquo; &mdash; Crystalfontz LCD Blog\" src=\"https:\/\/www.crystalfontz.com\/blog\/crystalfontz-in-the-wild-volumetric-display\/embed\/#?secret=LXV3TefkAr#?secret=F5wTM2rNKp\" data-secret=\"F5wTM2rNKp\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-crystalfontz-lcd-blog wp-block-embed-crystalfontz-lcd-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"FP1Lu85Sv7\"><a href=\"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-breakout-board-faqs\/\">Transparent OLED Breakout Board: FAQs<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&ldquo;Transparent OLED Breakout Board: FAQs&rdquo; &mdash; Crystalfontz LCD Blog\" src=\"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-breakout-board-faqs\/embed\/#?secret=0y7ZkSrsFx#?secret=FP1Lu85Sv7\" data-secret=\"FP1Lu85Sv7\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Contact Us<\/h3>\n\n\n\n<p class=\"has-black-color has-text-color\">If you have any questions, we can be reached at support@crystalfontz.com, we also provide <a href=\"https:\/\/www.crystalfontz.com\/contact.php\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">chat and telephone support<\/a> Monday through Friday during our open hours.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color\">We love to hear about your projects! Find us around the web (<a href=\"https:\/\/www.youtube.com\/user\/CrystalfontzAmerica\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">YouTube<\/a>,&nbsp;<a href=\"https:\/\/www.facebook.com\/CrystalfontzAmericaInc\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">Facebook<\/a>,&nbsp;<a href=\"https:\/\/www.instagram.com\/crystalfontz\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">Instagram<\/a>,&nbsp;<a href=\"https:\/\/www.linkedin.com\/company\/crystalfontz-america-inc\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">LinkedIn<\/a>, &nbsp;<a href=\"https:\/\/twitter.com\/Crystalfontz?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">Twitter<\/a>, <a href=\"https:\/\/forum.crystalfontz.com\" target=\"_blank\" rel=\"noreferrer noopener\">Forum<\/a>) and let us know what you&rsquo;re working on.<\/p>\n\n\n\n<!-- Begin Mailchimp Signup Form -->\n<link href=\"\/\/cdn-images.mailchimp.com\/embedcode\/horizontal-slim-10_7.css\" rel=\"stylesheet\" type=\"text\/css\">\n<style type=\"text\/css\">\n\t#mc_embed_signup{background:#fff; clear:left; font:14px Helvetica,Arial,sans-serif; width:100%;}\n<\/style>\n<div id=\"mc_embed_signup\">\n<form action=\"https:\/\/crystalfontz.us17.list-manage.com\/subscribe\/post?u=8a880dec17face7992ae6ef10&amp;id=7268847031\" method=\"post\" id=\"mc-embedded-subscribe-form\" name=\"mc-embedded-subscribe-form\" class=\"validate\" target=\"_blank\" novalidate=\"\">\n    <div id=\"mc_embed_signup_scroll\">\n\t<label for=\"mce-EMAIL\">Subscribe to our Newsletter<\/label>\n\t<input type=\"email\" value=\"\" name=\"EMAIL\" class=\"email\" id=\"mce-EMAIL\" placeholder=\"email address\" required=\"\">\n    <!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups-->\n    <div style=\"position: absolute; left: -5000px;\" aria-hidden=\"true\"><input type=\"text\" name=\"b_8a880dec17face7992ae6ef10_7268847031\" tabindex=\"-1\" value=\"\"><\/div>\n    <div class=\"clear\"><input type=\"submit\" value=\"Subscribe\" name=\"subscribe\" id=\"mc-embedded-subscribe\" class=\"button\"><\/div>\n    <\/div>\n<\/form>\n<\/div>\n\n<!--End mc_embed_signup-->\n","protected":false},"excerpt":{"rendered":"<p>Kevin Choi&#8217;s Transparent OLED Glasses with Fresnel Lenses We&#8217;ve seen a lot of people making glasses out of our transparent OLEDs, but this is the first iteration we&#8217;ve seen that uses lenses to make the display viewable. Kevin Choi (@k.choiii) shared some details of his build with us. Check out his page for more images [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":1951,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4,59,31,5,9],"tags":[118,124],"class_list":["post-1943","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-frequently-asked-questions","category-in-the-wild","category-oled","category-raspberry-pi","category-tutorial","tag-raspberry-pi","tag-transparent-oled"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Transparent OLED Smart Glasses<\/title>\n<meta name=\"description\" content=\"Transparent OLED Smart Glasses : Kevin Choi&#039;s Transparent OLED Glasses with Fresnel Lenses We&#039;ve seen a lot of people making glasses out of our transparent OLEDs, but this is the first\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-glasses\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Transparent OLED Smart Glasses\" \/>\n<meta property=\"og:description\" content=\"Transparent OLED Smart Glasses : Kevin Choi&#039;s Transparent OLED Glasses with Fresnel Lenses We&#039;ve seen a lot of people making glasses out of our transparent OLEDs, but this is the first\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.crystalfontz.com\/blog\/transparent-oled-glasses\/\" \/>\n<meta property=\"og:site_name\" content=\"Crystalfontz LCD Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pages\/Crystalfontz-America-Inc\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-23T18:48:38+00:00\" \/>\n<meta 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