{"id":2271,"date":"2009-04-11T23:28:31","date_gmt":"2009-04-11T15:28:31","guid":{"rendered":"http:\/\/techielobang.com\/blog\/?p=2271"},"modified":"2009-04-11T23:28:31","modified_gmt":"2009-04-11T15:28:31","slug":"fresnel-lens-melts-coin-experiment-shows","status":"publish","type":"post","link":"https:\/\/techielobang.com\/blog\/2009\/04\/11\/fresnel-lens-melts-coin-experiment-shows\/","title":{"rendered":"Fresnel Lens Melts Coin, Experiment Shows"},"content":{"rendered":"<p>Well, <a href=\"http:\/\/en.wikipedia.org\/wiki\/Fresnel_lens\" target=\"_blank\">Fresnel Lens<\/a> is a new word to me. I did not realise that we may be using it without knowing. For example, it is used in Overhead Projectors and lighthouses. Google employees are happily making experiments from this lens. From melting coins, aluminium cans and etc. Quite cool!<\/p>\n<p style=\"text-align: center;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2272\" data-permalink=\"https:\/\/techielobang.com\/blog\/2009\/04\/11\/fresnel-lens-melts-coin-experiment-shows\/alternative-lens-stand-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/alternative-lens-stand-2.jpg?fit=300%2C400&amp;ssl=1\" data-orig-size=\"300,400\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"alternative-lens-stand-2\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/alternative-lens-stand-2.jpg?fit=225%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/alternative-lens-stand-2.jpg?fit=300%2C400&amp;ssl=1\" class=\"size-full wp-image-2272 aligncenter\" title=\"alternative-lens-stand-2\" src=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/alternative-lens-stand-2.jpg?resize=300%2C400\" alt=\"alternative-lens-stand-2\" width=\"300\" height=\"400\" srcset=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/alternative-lens-stand-2.jpg?w=300&amp;ssl=1 300w, https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/alternative-lens-stand-2.jpg?resize=225%2C300&amp;ssl=1 225w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><!--more-->BTW, here is a graphical presentation of a Fresnel lens as compared to a normal lens.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2273\" data-permalink=\"https:\/\/techielobang.com\/blog\/2009\/04\/11\/fresnel-lens-melts-coin-experiment-shows\/401px-fresnel_lenssvg\/\" data-orig-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/401px-fresnel_lenssvg.png?fit=267%2C400&amp;ssl=1\" data-orig-size=\"267,400\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"401px-fresnel_lenssvg\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/401px-fresnel_lenssvg.png?fit=200%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/401px-fresnel_lenssvg.png?fit=267%2C400&amp;ssl=1\" class=\"alignnone size-full wp-image-2273\" title=\"401px-fresnel_lenssvg\" src=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/401px-fresnel_lenssvg.png?resize=267%2C400\" alt=\"401px-fresnel_lenssvg\" width=\"267\" height=\"400\" srcset=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/401px-fresnel_lenssvg.png?w=267&amp;ssl=1 267w, https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/401px-fresnel_lenssvg.png?resize=200%2C300&amp;ssl=1 200w\" sizes=\"auto, (max-width: 267px) 100vw, 267px\" \/><\/p>\n<p>Here is how the coins look like after beaming by the lens.<\/p>\n<p style=\"text-align: center;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2274\" data-permalink=\"https:\/\/techielobang.com\/blog\/2009\/04\/11\/fresnel-lens-melts-coin-experiment-shows\/pennies\/\" data-orig-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/pennies.jpg?fit=400%2C300&amp;ssl=1\" data-orig-size=\"400,300\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"pennies\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/pennies.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/pennies.jpg?fit=400%2C300&amp;ssl=1\" class=\"size-full wp-image-2274 aligncenter\" title=\"pennies\" src=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/pennies.jpg?resize=400%2C300\" alt=\"pennies\" width=\"400\" height=\"300\" srcset=\"https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/pennies.jpg?w=400&amp;ssl=1 400w, https:\/\/i0.wp.com\/techielobang.com\/blog\/wp-content\/uploads\/2009\/04\/pennies.jpg?resize=300%2C225&amp;ssl=1 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<h2><a href=\"http:\/\/googleblog.blogspot.com\/2009\/04\/will-it-lens.html\" target=\"_blank\">Read all about it at Google Blog<\/a><\/h2>\n<p>[ad#boxlist]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Well, Fresnel Lens is a new word to me. I did not realise that we may be using it without knowing. For example, it is used in Overhead Projectors and lighthouses. Google employees are happily making experiments from this lens. From melting coins, aluminium cans and etc. Quite cool!<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_links_to":"","_links_to_target":""},"categories":[4,14,3],"tags":[670,669],"class_list":["post-2271","post","type-post","status-publish","format-standard","hentry","category-information","category-techie","category-technology","tag-fresnel","tag-fresnel-lens"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p8YKZ-AD","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/posts\/2271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/comments?post=2271"}],"version-history":[{"count":2,"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/posts\/2271\/revisions"}],"predecessor-version":[{"id":2276,"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/posts\/2271\/revisions\/2276"}],"wp:attachment":[{"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/media?parent=2271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/categories?post=2271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techielobang.com\/blog\/wp-json\/wp\/v2\/tags?post=2271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}