{"id":367,"date":"2019-11-10T13:38:57","date_gmt":"2019-11-10T12:38:57","guid":{"rendered":"https:\/\/blog.exasoft.cz\/?p=367"},"modified":"2019-11-18T13:03:16","modified_gmt":"2019-11-18T12:03:16","slug":"jak-spravne-zvolit-uhlopricku-televize","status":"publish","type":"post","link":"https:\/\/blog.exasoft.cz\/index.php\/jak-spravne-zvolit-uhlopricku-televize\/","title":{"rendered":"Jak spr\u00e1vn\u011b zvolit \u00fahlop\u0159\u00ed\u010dku televize?"},"content":{"rendered":"<p>Nen\u00ed to tak d\u00e1vno, co jsme m\u011bli doma vypoukl\u00e9 CRT televize. Ten, kdo vlastnil model s \u00fahlop\u0159\u00ed\u010dkou v\u011bt\u0161\u00ed ne\u017e 70 cm, byl p\u00e1n. \u010casy se ale m\u011bn\u00ed a dne\u0161n\u00ed modern\u00ed LED televize dosahuj\u00ed \u00fahlop\u0159\u00ed\u010dek, kter\u00e9 p\u0159i zachov\u00e1n\u00ed rozumn\u00e9 ceny hrav\u011b atakuj\u00ed i metr a p\u016fl. Ne v\u017edy ale mus\u00ed v\u011bt\u0161\u00ed znamenat i lep\u0161\u00ed.<\/p>\n<p>Je zn\u00e1m\u00fdm faktem, \u017ee p\u0159i v\u00fdb\u011bru \u00fahlop\u0159\u00ed\u010dky televizoru je pot\u0159eba db\u00e1t na spr\u00e1vnou<strong> pozorovac\u00ed vzd\u00e1lenost<\/strong>. Lidsk\u00e9 oko ost\u0159\u00ed na jednotliv\u00e9 body v\u00a0n\u00e1vaznosti na jejich vzd\u00e1lenosti. Pokud je pozorovac\u00ed plocha p\u0159\u00edli\u0161 bl\u00edzko, m\u016f\u017ee doj\u00edt k\u00a0<strong>\u00fanav\u011b o\u010d\u00ed, bolestem hlavy<\/strong> a celkov\u00e9mu pocitu \u00fanavy s\u00a0nemo\u017enost\u00ed se na zobrazovan\u00fd obsah soust\u0159edit. V\u00a0t\u00e9to spojitosti tak\u00e9 vznikl relativn\u011b nov\u00fd pojem, tzv. <strong>digit\u00e1ln\u00ed \u00fanava<\/strong>.<\/p>\n<p>Probl\u00e9m samoz\u0159ejm\u011b nast\u00e1v\u00e1 i v\u00a0p\u0159\u00edpad\u011b, \u017ee na velkou d\u00e1lku sledujete malou obrazovku. Tato situace je ale v\u011bt\u0161in\u011b u\u017eivatel\u016f zn\u00e1m\u00e1 z\u00a0d\u0159\u00edv\u011bj\u0161\u00edch \u010das\u016f a projevuje se jednodu\u0161e t\u00edm, \u017ee nejste schopni zachytit v\u0161echny zobrazovan\u00e9 detaily a celkov\u00fd z\u00e1\u017eitek ze sledov\u00e1n\u00ed se zna\u010dn\u011b sni\u017euje.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-369\" src=\"https:\/\/blog.exasoft.cz\/wp-content\/uploads\/2018\/07\/npexels-photo-987586-300x200.jpeg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/blog.exasoft.cz\/wp-content\/uploads\/2018\/07\/npexels-photo-987586-300x200.jpeg 300w, https:\/\/blog.exasoft.cz\/wp-content\/uploads\/2018\/07\/npexels-photo-987586-768x512.jpeg 768w, https:\/\/blog.exasoft.cz\/wp-content\/uploads\/2018\/07\/npexels-photo-987586-1024x683.jpeg 1024w, https:\/\/blog.exasoft.cz\/wp-content\/uploads\/2018\/07\/npexels-photo-987586-80x53.jpeg 80w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>Podle \u010deho volit \u00fahlop\u0159\u00ed\u010dku televize?<\/strong><\/p>\n<p>V\u011bd\u011bli jste, \u017ee televizory s\u00a0<strong>vy\u0161\u0161\u00edm rozli\u0161en\u00edm<\/strong> vy\u017eaduj\u00ed <strong>men\u0161\u00ed pozorovac\u00ed vzd\u00e1lenost<\/strong>, ne\u017e ty s\u00a0ni\u017e\u0161\u00edm? Je to d\u00e1no t\u00edm, \u017ee p\u0159i vy\u0161\u0161\u00edm rozli\u0161en\u00ed je na stejn\u00e9 plo\u0161e koncentrov\u00e1no v\u00edce bod\u016f a samotn\u00fd obraz je tak pro oko ost\u0159ej\u0161\u00ed a p\u0159\u00edjemn\u011bji \u010diteln\u00fd. Pozorovac\u00ed vzd\u00e1lenost m\u016f\u017ee ovlivnit tak\u00e9 <strong>obnovovac\u00ed frekvence<\/strong>. V\u00a0praxi to znamen\u00e1, \u017ee \u010d\u00edm v\u00edce <strong>Hertz<\/strong> (Hz) obrazovka m\u00e1, t\u00edm v\u00edce \u0161et\u0159\u00ed va\u0161e o\u010di, proto\u017ee obraz je obnovov\u00e1n rychleji a nedoch\u00e1z\u00ed k\u00a0ne\u017e\u00e1douc\u00edmu \u201eblik\u00e1n\u00ed\u201c, kter\u00e9 n\u00e1\u0161 zrak tak unavuje.<\/p>\n<p><strong>Jeden p\u0159\u00edklad z\u00a0praxe:<\/strong><\/p>\n<p>Pl\u00e1nujete po\u0159\u00eddit televizor s\u00a0\u00fahlop\u0159\u00ed\u010dkou 50\u201c (127 cm)? Pokud bude m\u00edt obrazovka <strong>rozli\u0161en\u00ed 4K<\/strong>, m\u016f\u017eete ji pohodln\u011b pozorovat ji\u017e ze vzd\u00e1lenosti 93 cm. Bude-li v\u0161ak obrazovka disponovat rozli\u0161en\u00edm <strong>FullHD<\/strong>, budete <strong>minim\u00e1ln\u00ed <\/strong>pozorovac\u00ed vzd\u00e1lenost \u010dinit 186 cm.<\/p>\n<p><strong>Na\u0161e kalkula\u010dka v\u00e1m porad\u00ed.<\/strong><\/p>\n<p>P\u0159ipravili jsme pro v\u00e1s jednoduchou <strong>kalkula\u010dku<\/strong>, do kter\u00e9 sta\u010d\u00ed zadat rozli\u0161en\u00ed a \u00fahlop\u0159\u00ed\u010dku obrazovky. Kalkula\u010dka v\u00e1m vypo\u010d\u00edt\u00e1 <strong>minim\u00e1ln\u00ed<\/strong> vzd\u00e1lenost pro jej\u00ed sledov\u00e1n\u00ed.<\/p>\n<p><iframe style=\"height: 430px;\" src=\"https:\/\/www.exasoft.cz\/inc\/00_LS\/kalkulacka-vzdalenosti-tv\/index.html\" frameborder=\"0\"><\/iframe><\/p>\n<p><a class=\"eshop\" href=\"https:\/\/www.exasoft.cz\/elektronika-televize_c2685917.html\">Z nab\u00eddky televizor\u016f vyb\u00edrejte zde &gt;&gt;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nen\u00ed to tak d\u00e1vno, co jsme m\u011bli doma vypoukl\u00e9 CRT televize. Ten, kdo vlastnil model s \u00fahlop\u0159\u00ed\u010dkou v\u011bt\u0161\u00ed ne\u017e 70 cm, byl p\u00e1n. \u010casy se ale m\u011bn\u00ed a dne\u0161n\u00ed modern\u00ed LED televize dosahuj\u00ed \u00fahlop\u0159\u00ed\u010dek, kter\u00e9 p\u0159i zachov\u00e1n\u00ed rozumn\u00e9 ceny hrav\u011b atakuj\u00ed i metr a p\u016fl. Ne v\u017edy ale mus\u00ed v\u011bt\u0161\u00ed znamenat i lep\u0161\u00ed. Je zn\u00e1m\u00fdm [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":368,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[19],"tags":[],"class_list":["post-367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-prakticke-tipy","et-has-post-format-content","et_post_format-et-post-format-standard"],"_links":{"self":[{"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/posts\/367"}],"collection":[{"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/comments?post=367"}],"version-history":[{"count":11,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/posts\/367\/revisions"}],"predecessor-version":[{"id":981,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/posts\/367\/revisions\/981"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/media\/368"}],"wp:attachment":[{"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/media?parent=367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/categories?post=367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.exasoft.cz\/index.php\/wp-json\/wp\/v2\/tags?post=367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}