{"id":76331,"date":"2015-04-06T09:45:33","date_gmt":"2015-04-06T06:45:33","guid":{"rendered":"http:\/\/www.fyysika.ee\/?p=76331"},"modified":"2015-04-16T09:47:38","modified_gmt":"2015-04-16T06:47:38","slug":"mis-on-pildil-2","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=76331","title":{"rendered":"Mis on pildil?"},"content":{"rendered":"<p>K\u00f5ik teavad, et laseri kiirt me vaakumis k\u00f5rvalt vaadates ei n\u00e4eks. Valgus peab milleltki peegelduma v\u00f5i hajuma, et valgus ka vaatleja silma satuks. Kui \u00f5hk on tolmuvaba, siis tuleb laseri kiire ette panna n\u00e4iteks t\u00fckk paberit, et n\u00e4ha selle asukohta. Optika labori on selline paberit\u00fckk v\u00e4ga tarvilik abivahend.<\/p>\n<p>Pildi leidsime Ameerika Optika Seltsi (Optical Society of America) ajakirja <a href=\"http:\/\/www.osa-opn.org\/home\/\">Optics and Photonics News<\/a> kodulehelt. Selle allkiri \u00fctleb, et pildistatud\u00a0on 1kHz sagedusel t\u00f6\u00f6tava suure intensiivusega impulsslaseri kiirt, mis on fokusseeritud \u00f5hku, 75 mm fookuskaugusega l\u00e4\u00e4tsega. Ekspositsiooniaeg oli 1 sekund. Laserikiire n\u00e4htavaks tegemiseks on selles\u00a0kiiresti liigutatud paberit, kiire algusest l\u00e4bi fookuse kuni pildi teise serva v\u00e4lja.<\/p>\n<p>L\u00e4ks pilt selgemaks?<\/p>\n<div id=\"attachment_76332\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.fyysika.ee\/wp-content\/uploads\/2015\/04\/gallery09_241.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-76332\" class=\"wp-image-76332 size-full\" src=\"http:\/\/www.fyysika.ee\/wp-content\/uploads\/2015\/04\/gallery09_241.jpg\" alt=\"gallery09_24\" width=\"630\" height=\"522\" srcset=\"https:\/\/www.fyysika.ee\/wp-content\/uploads\/2015\/04\/gallery09_241.jpg 630w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2015\/04\/gallery09_241-300x249.jpg 300w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/a><p id=\"caption-attachment-76332\" class=\"wp-caption-text\">Foto: Ricardo E. Samad<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>K\u00f5ik teavad, et laseri kiirt me vaakumis k\u00f5rvalt vaadates ei n\u00e4eks. Valgus peab milleltki peegelduma v\u00f5i hajuma, et valgus ka vaatleja silma satuks. Kui \u00f5hk on tolmuvaba, siis tuleb laseri kiire ette panna n\u00e4iteks t\u00fckk paberit, et n\u00e4ha selle asukohta. Optika labori on selline paberit\u00fckk v\u00e4ga tarvilik abivahend. Pildi leidsime Ameerika Optika Seltsi (Optical Society [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":76332,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[40],"tags":[],"class_list":{"0":"post-76331","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-paev-pildis","8":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/76331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=76331"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/76331\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/media\/76332"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=76331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=76331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=76331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}