{"id":47736,"date":"2024-05-16T19:07:29","date_gmt":"2024-05-16T18:07:29","guid":{"rendered":"https:\/\/www.akehedman.se\/wordpress\/?p=47736"},"modified":"2024-05-16T19:07:29","modified_gmt":"2024-05-16T18:07:29","slug":"international-day-of-light","status":"publish","type":"post","link":"https:\/\/www.akehedman.se\/wordpress\/?p=47736","title":{"rendered":"International Day of Light"},"content":{"rendered":"
\n
\"\"<\/figure>\n<\/div>\n\n\n

Ja m\u00e5 lasern leva! Idag \u00e4r det 64 \u00e5r sedan fysikern Theodore Maiman (1927\u20132007) skapade den f\u00f6rsta lasern, \u201cLight Amplification by Stimulated Emission of Radiation\u201d.<\/p>\n\n\n\n

F\u00f6reg\u00e5ngaren var n\u00e5got som kallades maser (M:et stod f\u00f6r microwave) och som bland annat utvecklades p\u00e5 Bell Labs och patenterades 1960 av Charles H. Townes och Arthur L. Schawlow. Townes utvecklade masern efter en publikation av Albert Einstein, som i sin tur utvecklade Max Planks lag om str\u00e5lning. Townes fick senare dela p\u00e5 ett Nobelpris f\u00f6r sitt arbete.<\/p>\n\n\n\n

Maimans rubinlaser, patent US3353115A fr\u00e5n 1965, samlade ljus i en koncentrerad str\u00e5le med samma riktning och v\u00e5gl\u00e4ngd, d\u00e4r v\u00e5gorna \u00e4ven ligger i fas med varandra.<\/p>\n\n\n\n

Fr\u00e5n b\u00f6rjan var det inte klart vad uppt\u00e4ckten skulle anv\u00e4ndas till. Men det f\u00f6r\u00e4ndrades snabbt. Maimans artikel om lasern 1960 i tidningen Nature anses av vissa som en av de \u201dviktigaste per ord\u201d som publicerats.<\/p>\n\n\n\n

Lasrar m\u00f6jligg\u00f6r en myriad andra uppfinningar. Till exempel optiska fibern\u00e4t f\u00f6r kommunikation, \u00f6gonkirurgi eller m\u00e4tning av f\u00f6roreningar i luft.<\/p>\n\n\n\n

Till minne av Maimans uppt\u00e4ckt har UNESCO utsett 16 maj till International Day of Light.<\/p>\n\n\n\n

Om du vill fira lite extra, pr\u00f6va att texta dina kompisar med iPhone \u201dpew pew\u201d s\u00e5 f\u00e5r du se vad som h\u00e4nder\u2026<\/p>\n\n\n\n

Theodore Maimans patent: https:\/\/patents.google.com\/patent\/US3353115A\/en<\/a><\/p>\n\n\n\n

<\/p>\n\n\n\n

K\u00e4lla Patent & Registreringsverket<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Ja m\u00e5 lasern leva! Idag \u00e4r det 64 \u00e5r sedan fysikern Theodore Maiman (1927\u20132007) skapade den f\u00f6rsta lasern, \u201cLight Amplification by Stimulated Emission of Radiation\u201d. F\u00f6reg\u00e5ngaren var n\u00e5got som kallades maser (M:et stod f\u00f6r microwave) och som bland annat utvecklades p\u00e5 Bell Labs och patenterades 1960 av Charles H. Townes och Arthur L. Schawlow. Townes […]<\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[2],"tags":[],"class_list":["post-47736","post","type-post","status-publish","format-standard","hentry","category-swedish"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":22531,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=22531","url_meta":{"origin":47736,"position":0},"title":"Fullt utvecklad brand","author":"\u00c5ke Hedman","date":"2016-12-14","format":false,"excerpt":"Fullt utvecklad brand p\u00e5 sjunde v\u00e5ningen p\u00e5 August S\u00f6dermans v\u00e4g i Uppsala \u00e4r ingen bra grej om man har en son med flickv\u00e4n som bor just p\u00e5 sjunde v\u00e5ningen d\u00e4rst\u00e4des. Men turligt nog h\u00e4nder inte det h\u00e4r i samma trappuppg\u00e5ng och vuxet nog s\u00e5 meddelar sonen per SMS att allt\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/12\/brand2-jpg.jpeg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/12\/brand2-jpg.jpeg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/12\/brand2-jpg.jpeg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/12\/brand2-jpg.jpeg?resize=700%2C400 2x"},"classes":[]},{"id":35470,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=35470","url_meta":{"origin":47736,"position":1},"title":"Helg","author":"\u00c5ke Hedman","date":"2020-07-10","format":false,"excerpt":"\u00c4gnar eftermiddag \u00e5t att renovera gr\u00e4sklippare i ett f\u00f6rs\u00f6k att f\u00e5 den att snurra en s\u00e4song till. G\u00e5r skapligt \u00e4nd\u00e5. Men kr\u00e4ver en ny drivrem f\u00f6r att jag skall bli riktigt n\u00f6jd. Drivremmar tillverkas tydligen av folk hela dagarna s\u00e5 det tror jag skall vara l\u00f6sbart. Blir lite andra vaktm\u00e4starsysslor\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/07\/Screenshot-from-2020-07-10-14-26-50.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1365,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=1365","url_meta":{"origin":47736,"position":2},"title":"Produktutveckling","author":"\u00c5ke Hedman","date":"2012-03-13","format":false,"excerpt":"Jag har l\u00e4nkat till den h\u00e4r artikeln http:\/\/www.thisislondon.co.uk\/lifestyle\/london-life\/sir-jonathan-ive-the-iman-cometh-7562170.html p\u00e5 ett annat st\u00e4lle ocks\u00e5 men d\u00e5 fr\u00e5n IDG. Det finns s\u00e5 m\u00e5nga \"r\u00e4tt svar\" i den h\u00e4r artikeln och man \u00f6nskar att fler f\u00f6retag t\u00e4nkte s\u00e5. Nu \u00e4r det ju m\u00e5nga som g\u00f6r det ocks\u00e5 s\u00e5klart. Design \u00e4r viktigt f\u00f6r m\u00e5nga.\u2026","rel":"","context":"In "F\u00f6retagande"","block_context":{"text":"F\u00f6retagande","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=28"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":38603,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=38603","url_meta":{"origin":47736,"position":3},"title":"Bad moon rising","author":"\u00c5ke Hedman","date":"2021-04-26","format":false,"excerpt":"Photo by Alex Powell on Pexels.com En m\u00e4ktig m\u00e5ne som smygande reser sig upp p\u00e5 himlen bakom \u00d6rnberget pockar p\u00e5 min uppm\u00e4rksamhet. Berget som vi \u00e4r del av, men som \u00e4r h\u00f6gre \u00e4n kullen d\u00e4r vi bor p\u00e5. Kullar dr\u00f6mmer om att bli berg. Berg dr\u00f6mmer mardr\u00f6mmar om att bli\u2026","rel":"","context":"In "Swedish"","block_context":{"text":"Swedish","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=2"},"img":{"alt_text":"gray airplane illustration","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/pexels-photo-1769394.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/pexels-photo-1769394.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/pexels-photo-1769394.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/pexels-photo-1769394.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":38430,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=38430","url_meta":{"origin":47736,"position":4},"title":"1000+","author":"\u00c5ke Hedman","date":"2021-04-13","format":false,"excerpt":"N\u00e5gra tusen #ifdef ... \u00e4r v\u00e4l ocks\u00e5 ett l\u00e5tsasjobb. Tar l\u00e4ngre tid att f\u00e5 till \u00e4n man tror. I alla fall om de skall fylla det t\u00e4nkta syftet. \"WIN32\" skriver man d\u00e5 fortfarande. Minns p\u00e5 dagen n\u00e4r jag skrev min f\u00f6rsta \"WIN32\". En ny sk\u00f6n 32-bitars v\u00e4rld var p\u00e5 ing\u00e5ende.\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/2021-04-13_18-38.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/2021-04-13_18-38.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/2021-04-13_18-38.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/2021-04-13_18-38.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/2021-04-13_18-38.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2021\/04\/2021-04-13_18-38.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":50360,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=50360","url_meta":{"origin":47736,"position":5},"title":"Intelligent fallarm m\u00e4ter benets r\u00f6relse \u2013 Elektroniktidningen","author":"\u00c5ke Hedman","date":"2025-09-22","format":false,"excerpt":"Genom att s\u00e4tta en r\u00f6relsesensor p\u00e5 l\u00e5ret g\u00e5r det att f\u00e5 fram mycket b\u00e4ttre data p\u00e5 hur en person r\u00f6r sig \u00e4n n\u00e4r den \u00adsitter p\u00e5 \u00adhandleden. Den s\u00e5 kallade Snubblometern fr\u00e5n Lundabolaget Infonomy \u00e4r utvecklad f\u00f6r v\u00e5rdgivare som beh\u00f6ver bed\u00f6ma resursbehov hos nya patienter, vill m\u00e4ta framsteg under en\u2026","rel":"","context":"In "Swedish"","block_context":{"text":"Swedish","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=2"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_shortlink":"https:\/\/wp.me\/p68PL2-cpW","_links":{"self":[{"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/47736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=47736"}],"version-history":[{"count":1,"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/47736\/revisions"}],"predecessor-version":[{"id":47742,"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/47736\/revisions\/47742"}],"wp:attachment":[{"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=47736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=47736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.akehedman.se\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=47736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}