{"id":949,"date":"2021-02-03T20:06:49","date_gmt":"2021-02-03T19:06:49","guid":{"rendered":"https:\/\/www.vosvetla.cz\/?page_id=949"},"modified":"2021-02-04T21:44:14","modified_gmt":"2021-02-04T20:44:14","slug":"poradna","status":"publish","type":"page","link":"https:\/\/www.vosvetla.cz\/?page_id=949","title":{"rendered":"Poradna"},"content":{"rendered":"\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\" style=\"grid-template-columns:34% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" width=\"450\" height=\"500\" src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/LED_5mm_green_cz.png\" alt=\"\" class=\"wp-image-954\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/LED_5mm_green_cz.png 450w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/LED_5mm_green_cz-270x300.png 270w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"has-black-color has-text-color has-large-font-size\"><strong>LED<\/strong> <\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n\n<p><span style=\"color: #000000;\">(anglick\u00e1 zkratka <em><strong>L<\/strong>ight-<strong>E<\/strong>mitting <strong>D<\/strong>iode<\/em> \u2013 <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Polovodi%C4%8Dov%C3%A1_dioda\" target=\"_blank\" rel=\"noreferrer noopener\">dioda<\/a> emituj\u00edc\u00ed sv\u011btlo, p\u0159esn\u011b p\u0159elo\u017eeno: sv\u011btlo vyza\u0159uj\u00edc\u00ed dioda) je <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Polovodi%C4%8D\" target=\"_blank\" rel=\"noreferrer noopener\">polovodi\u010dov\u00e1<\/a> <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Elektronika\" target=\"_blank\" rel=\"noreferrer noopener\">elektronick\u00e1<\/a> sou\u010d\u00e1stka, jej\u00ed\u017e vlastnost\u00ed je schopnost vyza\u0159ovat <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Sv%C4%9Btlo\" target=\"_blank\" rel=\"noreferrer noopener\">sv\u011btlo<\/a>. Hovorov\u011b se naz\u00fdv\u00e1 ledka.<\/span><\/p>\n<p><span style=\"color: #000000;\">Pom\u011brn\u011b dlouho trval v\u00fdvoj modr\u00e9 LED, kter\u00e1 umo\u017enila vznik modern\u00edch velkoplo\u0161n\u00fdch barevn\u00fdch <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Obrazovka\" target=\"_blank\" rel=\"noreferrer noopener\">obrazovek<\/a>, a v t\u00e9 souvislosti i b\u00edl\u00e9 vysoce sv\u00edtiv\u00e9 LED, kter\u00e9 se pou\u017e\u00edvaj\u00ed hlavn\u011b jako zdroje sv\u011btla v r\u016fzn\u00fdch sv\u00edtidlech, reflektorech, sv\u00edtiln\u00e1ch, sv\u011btlometech apod.<\/span><\/p>\n<p><span style=\"color: #000000;\">Proto\u017ee nen\u00ed mo\u017en\u00e9 p\u0159\u00edmo emitovat b\u00edl\u00e9 sv\u011btlo, nov\u011bj\u0161\u00ed b\u00edl\u00e9 LED vyu\u017e\u00edvaj\u00ed <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Luminofor\" target=\"_blank\" rel=\"noreferrer noopener\">luminoforu<\/a>. N\u011bkter\u00e9 pr\u016fhledn\u00e9 LED emituj\u00ed modr\u00e9 sv\u011btlo, \u010d\u00e1st tohoto sv\u011btla je p\u0159\u00edmo na <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/%C4%8Cip\" target=\"_blank\" rel=\"noreferrer noopener\">\u010dipu<\/a> luminoforem transformov\u00e1na na \u017elut\u00e9 sv\u011btlo a d\u00edky m\u00edsen\u00ed t\u011bchto barev vznik\u00e1 b\u00edl\u00e1. Jin\u00e9 typy b\u00edl\u00fdch LED emituj\u00ed ultrafialov\u00e9 z\u00e1\u0159en\u00ed, to je p\u0159\u00edmo na \u010dipu luminoforem transformov\u00e1no na b\u00edl\u00e9 sv\u011btlo.<\/span><\/p>\n<p><span style=\"color: #000000;\">Oproti jin\u00fdm elektrick\u00fdm zdroj\u016fm sv\u011btla (\u017e\u00e1rovka, v\u00fdbojka, atd.) maj\u00ed LED tu v\u00fdhodu, \u017ee pracuj\u00ed s mal\u00fdmi hodnotami proudu a nap\u011bt\u00ed.<\/span><\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:130px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-black-color has-text-color has-large-font-size\"><strong><span style=\"color:#00cc00\" class=\"has-inline-color\">V\u00ddHODY<\/span> LED<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background is-style-default\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<ul>\n<li>\n<p><span style=\"color: #000000;\">maj\u00ed asi 10\u00d7 v\u011bt\u0161\u00ed \u00fa\u010dinnost (<a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Sv%C3%ADtivost\" target=\"_blank\" rel=\"noopener noreferrer\">sv\u00edtivost<\/a>\/<a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/V%C3%BDkon\" target=\"_blank\" rel=\"noopener noreferrer\">v\u00fdkon<\/a>) ne\u017e <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/%C5%BD%C3%A1rovka\">\u017e\u00e1rovky<\/a>, asi 2\u00d7 v\u011bt\u0161\u00ed ne\u017e <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Z%C3%A1%C5%99ivka\" target=\"_blank\" rel=\"noopener noreferrer\">z\u00e1\u0159ivky<\/a>, to je u\u017eite\u010dn\u00e9 v za\u0159\u00edzen\u00edch nap\u00e1jen\u00fdch bateriemi nebo v \u00fasporn\u00fdch za\u0159\u00edzen\u00edch<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">pou\u017eit\u00ed ve sv\u00edtidlech, u kter\u00fdch pot\u0159ebujeme funkci \u201estm\u00edv\u00e1n\u00ed\u201c, nem\u011bn\u00ed svou barvu p\u0159i sn\u00ed\u017een\u00ed nap\u00e1jec\u00edho proudu<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">jsou odoln\u00e9 v\u016f\u010di n\u00e1raz\u016fm a vibrac\u00edm<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">jsou odoln\u00e9 v\u016f\u010di chladu<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">jsou ide\u00e1ln\u00ed na pou\u017eit\u00ed v\u00a0za\u0159\u00edzen\u00edch a sv\u00edtidlech, u kter\u00fdch doch\u00e1z\u00ed k \u010dast\u00e9mu vyp\u00edn\u00e1n\u00ed a zap\u00edn\u00e1n\u00ed<\/span><\/p>\n<\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><span style=\"color: #000000;\">&#8211; <em>To je z\u00e1sadn\u00ed rozd\u00edl od \u017e\u00e1rovek, p\u0159edev\u0161\u00edm halogenov\u00fdch, u kter\u00fdch se m\u016f\u017ee p\u0159i \u010dast\u00e9m zap\u00edn\u00e1n\u00ed a vyp\u00ednan\u00ed sni\u017eovat \u017eivotnost. Velice n\u00e1chyln\u00e9 jsou na toto z\u00e1\u0159ivky, u nich\u017e se obvykle p\u0159ep\u00e1l\u00ed jedno ze \u017ehavic\u00edch vl\u00e1ken<\/em>.<\/span><\/p>\n<ul>\n<li>\n<p><span style=\"color: #000000;\">maj\u00ed extr\u00e9mn\u011b dlouhou \u017eivotnost &#8211; st\u00e1le funguj\u00ed bez \u00fadr\u017eby po n\u011bkolik let \u2013 maxim\u00e1ln\u011b je \u010d\u00e1ste\u010dn\u00fd \u00fabytek p\u016fvodn\u00edho jasu<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">velice rychle se rozsv\u00edt\u00ed<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">jsou velice mal\u00e9 a snadno mohou b\u00fdt osazeny do desky plo\u0161n\u00fdch spoj\u016f<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"color: #000000;\">neobsahuj\u00ed <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Rtu%C5%A5\" target=\"_blank\" rel=\"noopener noreferrer\">rtu\u0165<\/a> a t\u011b\u017ek\u00e9 kovy (na rozd\u00edl od z\u00e1\u0159ivek nebo tzv. \u00fasporn\u00fdch \u017e\u00e1rovek a sv\u00edtidel)<\/span><\/p>\n<\/li>\n<\/ul>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><span style=\"color:#cc0000\" class=\"has-inline-color\">NEV\u00ddHODY<\/span> <span class=\"has-inline-color has-black-color\">LED<\/span><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<ul>\n<li><span style=\"color: #000000;\">maj\u00ed vy\u0161\u0161\u00ed po\u0159izovac\u00ed n\u00e1klady (po\u010d\u00edt\u00e1no v cen\u011b za <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Lumen\">lumen<\/a>), ne\u017e tradi\u010dn\u00ed sv\u011bteln\u00e9 zdroje<\/span><\/li>\n<li><span style=\"color: #000000;\">jejich \u017eivotnost hodn\u011b z\u00e1vis\u00ed na teplot\u011b. V p\u0159\u00edpadech vy\u0161\u0161\u00edch teplot se mus\u00ed zajistit dostate\u010dn\u00e9 chlazen\u00ed<\/span><\/li>\n<li><span style=\"color: #000000;\">obvykle vyza\u0159uj\u00ed sv\u011btlo jen v \u00fazk\u00e9m paprsku v jednom sm\u011bru<\/span><\/li>\n<li><span style=\"color: #000000;\">je jist\u00e9 znepokojen\u00ed z toho, \u017ee modr\u00e9 sv\u011btlo LED je schopno po\u0161kodit zrak \u2013 v\u00a0p\u0159\u00edpad\u011b pou\u017eit\u00ed kvalitn\u00edch LED \u010dip\u016f, se z\u00e1kazn\u00edk nemus\u00ed b\u00e1t probl\u00e9m\u016f s\u00a0vyza\u0159ov\u00e1n\u00edm modr\u00e9ho sv\u011btla<\/span><\/li>\n<\/ul>\n\n\n<div style=\"height:80px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-center\" style=\"font-size:30px\"><strong><u><em><span style=\"color:#00cc00\" class=\"has-inline-color\">Nevyb\u00edrejte sv\u011bteln\u00e9 zdroje pouze podle ceny a p\u0159\u00edkonu.<\/span><\/em><\/u><\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center\"><p><span class=\"has-inline-color has-black-color\">Kdy\u017e vyb\u00edr\u00e1me zdroj sv\u011btla, m\u011bli bychom v\u011bd\u011bt, co od n\u011bj chceme. \u010casto sv\u00edtidla vyb\u00edr\u00e1me pouze podle p\u0159\u00edkonu a ceny. To m\u016f\u017ee b\u00fdt chyba. I nejv\u00edce \u00fasporn\u00e9 sv\u00edtidlo je nedosta\u010duj\u00edc\u00ed, pokud m\u00e1 nedosta\u010duj\u00edc\u00ed sv\u00edtivost nebo nevhodnou barevnou teplotu. Je pot\u0159eba zohlednit v\u00edce parametr\u016f a m\u00edsto ur\u010den\u00ed.<\/span><\/p><\/blockquote>\n\n\n\n<div style=\"height:80px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><span class=\"has-inline-color has-black-color\">SV\u011aTELN\u00dd TOK<\/span><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<p><span style=\"color: #000000;\">jednotka <strong><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Lumen\" target=\"_blank\" rel=\"noopener noreferrer\">lumen<\/a><\/span> \/lm\/<\/strong>. Je to fotometrick\u00e1 veli\u010dina, charakterizuj\u00edc\u00ed sv\u011bteln\u00fd v\u00fdkon z\u00e1\u0159en\u00ed. V\u00a0z\u00e1sad\u011b jde o sv\u011bteln\u00fd v\u00fdkon zdroje sv\u011btla.<\/span><\/p>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" width=\"1024\" height=\"769\" src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-1024x769.jpg\" alt=\"\" class=\"wp-image-1097\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-1024x769.jpg 1024w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-300x225.jpg 300w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-768x577.jpg 768w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-1536x1153.jpg 1536w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-2048x1538.jpg 2048w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/patrick-tomasso-1NTFSnV-KLs-unsplash2-1438x1080.jpg 1438w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<figure class=\"wp-block-table\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\"><span class=\"has-inline-color has-black-color\">Klasick\u00e9 \u017e\u00e1rovky<\/span><\/th><th class=\"has-text-align-center\" data-align=\"center\"><span class=\"has-inline-color has-black-color\">LED \u017e\u00e1rovky \/W\/<\/span><\/th><th class=\"has-text-align-center\" data-align=\"center\"><span class=\"has-inline-color has-black-color\">LED \u017e\u00e1rovky \/lm\/<\/span><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">25 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">3 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">300 \u2013 360 lm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">40 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">4  \u2013 5 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">440 \u2013 600 lm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">60 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">7  \u2013 8 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">800 \u2013 960 lm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">75 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">9  \u2013 10 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">1080 \u2013 1200 lm<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n\n\n<div style=\"height:80px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><span class=\"has-inline-color has-black-color\">BAREVN\u00c1 TEPLOTA<\/span><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<p><span style=\"color: #000000;\">teplota chromati\u010dnosti, jednotka <strong><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Kelvin\" target=\"_blank\" rel=\"noopener noreferrer\">Kelvin<\/a><\/span> \/K\/<\/strong>. Obecn\u011b plat\u00ed, \u017ee \u010d\u00edm vy\u0161\u0161\u00ed je \u00fadaj v\u00a0Kelvinech, t\u00edm je barva sv\u011btla studen\u011bj\u0161\u00ed.<\/span><\/p>\n<p><span style=\"color: #000000;\">V\u00a0z\u00e1sad\u011b se pou\u017e\u00edvaj\u00ed t\u0159i term\u00edny barevnosti u b\u00edl\u00e9ho sv\u011btla. Je to <strong>tepl\u00e9<\/strong>, <strong>neutr\u00e1ln\u00ed<\/strong> a <strong>studen\u00e9<\/strong> sv\u011btlo.<\/span><\/p>\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"alignleft size-full is-resized\"><img src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/teplota.jpg\" alt=\"\" class=\"wp-image-413\" width=\"800\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/teplota.jpg 690w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/teplota-300x56.jpg 300w\" sizes=\"(max-width: 690px) 100vw, 690px\" \/><\/figure><\/div>\n\n\n<p><span style=\"color: #000000;\"><img loading=\"lazy\" class=\" wp-image-1088 alignright\" src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-300x200.jpg\" alt=\"\" width=\"500\" height=\"333\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-300x200.jpg 300w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-1024x683.jpg 1024w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-768x512.jpg 768w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-1536x1024.jpg 1536w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-2048x1366.jpg 2048w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/ostap-senyuk-axPGkHV6M2Q-unsplash_2-1620x1080.jpg 1620w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/>P\u0159i koupi LED sv\u00edtidla, je tak\u00e9 nutno zv\u00e1\u017eit barvu a typ jeho krytu \/difuzoru\/. Teplou b\u00edlou barvu sv\u011btla m\u016f\u017ee lehce ovlivnit jeho ml\u00e9\u010dn\u00fd kryt apod. Sv\u011btlo tohoto LED sv\u00edtidla bude m\u00e9n\u011b tepl\u00e9, ne\u017e toho sam\u00e9ho sv\u00edtidla s\u00a0krytem \u010dir\u00fdm. St\u00e1le je ale podstatn\u00fd typ led \u010dipu.<\/span><\/p>\n<p><span style=\"color: #000000;\">Obecn\u011b plat\u00ed, \u017ee pro m\u00edstnosti ur\u010den\u00e9 k\u00a0odpo\u010dinku je vhodn\u011bj\u0161\u00ed sv\u00edtidlo s\u00a0teplej\u0161\u00ed barevnost\u00ed, naopak v\u00a0prostor\u00e1ch, kde pracujeme apod., m\u016f\u017eeme pou\u017e\u00edt sv\u011btlo studen\u011bj\u0161\u00ed. Subjektivn\u011b sv\u00edt\u00ed v\u00edc, p\u0159ipom\u00edn\u00e1 toti\u017e sv\u011btlo denn\u00ed, kter\u00e9 n\u00e1s stimuluje k\u00a0aktivit\u011b.<\/span><\/p>\n<p><span style=\"color: #000000;\">B\u011b\u017en\u00e9 denn\u00ed sv\u011btlo m\u00e1 kolem 5 000 K a\u00a0 modr\u00e1 obloha (ale naopak i zata\u017een\u00e1) a\u017e 10 000 K. <span style=\"text-decoration: none;\">Teplota<\/span> na povrchu <span style=\"text-decoration: none;\">Slunce<\/span> \u010din\u00ed asi 5 800 K, proto ho lid\u00e9 vn\u00edmaj\u00ed jako \u017elut\u00e9. V lo\u017enici p\u0159ed usnut\u00edm je \u017e\u00e1douc\u00ed co nejteplej\u0161\u00ed barevnost sv\u011btla, nap\u0159. 2 700 K, kter\u00e1 p\u0159ipom\u00edn\u00e1 z\u00e1pad slunce.<\/span><\/p>\n<p><span style=\"color: #000000;\">Teplej\u0161\u00ed odst\u00edny sv\u011btla p\u0159ed usnut\u00edm a odpo\u010dinkem, jsou z\u00e1sadn\u00ed pro tvorbu melatoninu, Jde o hormon, kter\u00fd je produkov\u00e1n v\u00a0noci ve sp\u00e1nku a p\u0159ed\u00e1v\u00e1 sign\u00e1ly o denn\u00ed dob\u011b a reguluje biologick\u00e9 rytmy.<\/span><\/p>\n\n\n<div style=\"height:80px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><span class=\"has-inline-color has-black-color\">V\u011aRNOST BAREV<\/span><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<p><span style=\"color: #000000;\"><img loading=\"lazy\" class=\"alignright wp-image-1050\" src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-300x213.jpg\" alt=\"\" width=\"600\" height=\"426\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-300x213.jpg 300w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-1024x727.jpg 1024w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-768x545.jpg 768w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-1536x1090.jpg 1536w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-2048x1453.jpg 2048w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/sergey-semin-9yPlDP_Yca4-unsplash-1522x1080.jpg 1522w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>index pod\u00e1n\u00ed barev, ozna\u010duje jednotka <strong><a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Index_pod%C3%A1n%C3%AD_barev\" target=\"_blank\" rel=\"noopener noreferrer\">Ra<\/a><\/strong> a \u010d\u00edslice ud\u00e1vaj\u00edc\u00ed procenta. Jde o vyj\u00e1d\u0159en\u00ed v\u011brnosti barevn\u00e9ho vjemu, kter\u00fd vznikne osv\u011btlen\u00edm ze zdroje, v porovn\u00e1n\u00ed s t\u00edm, jak\u00fd barevn\u00fd vjem by vznikl v\u00a0ide\u00e1ln\u00edm stavu, tzn. p\u0159i denn\u00edm slune\u010dn\u00edm svitu.<\/span><\/p>\n<p><span style=\"color: #000000;\">Slune\u010dn\u00ed sv\u011btlo m\u00e1 spojit\u00e9 spektrum \/v\u0161echny vlnov\u00e9 d\u00e9lky jsou vyv\u00e1\u017een\u00e9\/. Um\u011bl\u00e9 zdroje sv\u011btla, maj\u00ed spektrum \u010d\u00e1ste\u010dn\u011b omezen\u00e9. M\u016f\u017ee to znamenat, \u017ee pokud osv\u011btl\u00edme objekt sv\u00edtidlem s\u00a0n\u00edzk\u00fdm Ra, tak mohou b\u00fdt barvy zkreslen\u00e9. Z\u00a0dlouhodob\u00e9ho pohledu u\u017e\u00edv\u00e1n\u00ed je nutn\u00e9, aby hodnota Ra nebyla men\u0161\u00ed ne\u017e 80. Dokonal\u00e1 shoda by byla Ra100.<\/span><\/p>\n<h4><strong><span style=\"color: #000000;\">P\u0159i v\u00fdb\u011bru vlastnost\u00ed sv\u00edtidel se m\u016f\u017eete setkat s ozna\u010den\u00edm jejich barvy dle vzorn\u00edku RAL. Jedn\u00e1 se o mezin\u00e1rodn\u011b uzn\u00e1van\u00fd vzorn\u00edk a ur\u010duje barvu, kterou m\u00e1 sv\u00edtidlo fyzicky <b>\/barva korpusu sv\u00edtidla, barva sto\u017e\u00e1ru aj.\/<\/b>, nejedn\u00e1 se v\u0161ak o barvou, kterou dan\u00e9 sv\u00edtidlo sv\u00edt\u00ed. <\/span><\/strong><\/h4>\n\n\n<div class=\"wp-block-buttons alignright\">\n<div class=\"wp-block-button is-style-outline\"><a class=\"wp-block-button__link has-white-background-color has-text-color has-background no-border-radius\" href=\"http:\/\/www.vzornikral.cz\/\" style=\"color:#00cc00\" target=\"_blank\" rel=\"noreferrer noopener\">Vzorn\u00edk RAL<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline\"><a class=\"wp-block-button__link has-text-color no-border-radius\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Vzorn%C3%ADk_barev_RAL\" style=\"color:#00cc00\" target=\"_blank\" rel=\"noreferrer noopener\">Wikipedie<\/a><\/div>\n<\/div>\n\n\n<p><strong><span style=\"color: #00cc00;\">Pro p\u0159edstavu o konkr\u00e9tn\u00ed barv\u011b lze pou\u017e\u00edt nap\u0159\u00edklad tyto vzorn\u00edky:<\/span><\/strong><\/p>\n\n\n<div style=\"height:80px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><span class=\"has-inline-color has-black-color\">INTENZITA OSV\u011aTLEN\u00cd<\/span><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<p><span style=\"color: #000000;\">jde v\u00a0z\u00e1sad\u011b o hustotu sv\u011btlen\u00e9ho toku, dopadaj\u00edc\u00edho na plochu 1m2, jednotka<strong><span style=\"color: #000000;\"> <a style=\"color: #000000;\" href=\"https:\/\/cs.wikipedia.org\/wiki\/Lux_(jednotka)\" target=\"_blank\" rel=\"noopener noreferrer\">Lux<\/a><\/span> \/lx\/<\/strong>.<\/span><\/p>\n<p><span style=\"color: #000000;\">Denn\u00ed venkovn\u00ed intenzita je cca 100 \u2013 10000 lx, osv\u011btlen\u00ed v\u00a0dom\u00e1cnostech je cca 100 \u2013 500 lx, v\u00a0kancel\u00e1\u0159\u00edch cca 500 lx apod.<\/span><\/p>\n<p><span style=\"color: #000000;\">N\u00ed\u017ee jsou uvedeny optim\u00e1ln\u00ed teoretick\u00e9 parametry.<\/span><\/p>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 39%\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" width=\"683\" height=\"1024\" src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-683x1024.jpg\" alt=\"\" class=\"wp-image-1083\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-683x1024.jpg 683w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-200x300.jpg 200w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-768x1152.jpg 768w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-1024x1536.jpg 1024w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-1365x2048.jpg 1365w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-720x1080.jpg 720w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2021\/02\/billy-pasco-se3tHNszbkM-unsplash-scaled.jpg 1707w\" sizes=\"(max-width: 683px) 100vw, 683px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\"><strong><span class=\"has-inline-color has-black-color\">Druh prostoru, \u00fakolu nebo \u010dinnosti<\/span><\/strong><\/th><th class=\"has-text-align-center\" data-align=\"center\"><strong><span class=\"has-inline-color has-black-color\">Osv\u011btlen\u00ed (lx)<\/span><\/strong><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Schodi\u0161t\u011b<\/td><td class=\"has-text-align-center\" data-align=\"center\">150<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Gar\u00e1\u017e\u00ed, chodeb, skladi\u0161\u0165 a odstavn\u00fdch prostor<\/td><td class=\"has-text-align-center\" data-align=\"center\">70-100<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Skladovac\u00ed prostory<\/td><td class=\"has-text-align-center\" data-align=\"center\">120<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Kuchyn\u011b, ob\u00fdvac\u00ed pokoje a j\u00eddelny<\/td><td class=\"has-text-align-center\" data-align=\"center\">250<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">P\u0159\u00edprava j\u00eddel nebo kancel\u00e1\u0159sk\u00e9 a laboratorn\u00ed pr\u00e1ce<\/td><td class=\"has-text-align-center\" data-align=\"center\">500<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0160atny, koupelny<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Pro \u010dten\u00ed a psan\u00ed, v\u00fdstavy, obchodn\u00ed domy<\/td><td class=\"has-text-align-center\" data-align=\"center\">750<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Jemn\u00e1 mont\u00e1\u017e, elektronika<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Hodin\u00e1\u0159stv\u00ed, subminiaturn\u00ed elektronika<\/td><td class=\"has-text-align-center\" data-align=\"center\">1500<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n\n\n<div style=\"height:80px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><span class=\"has-inline-color has-black-color\">N\u00e1klady po\u0159\u00edzen\u00ed a provozu<\/span><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background\" style=\"background-color:#00cc00;color:#00cc00\"\/>\n\n\n<p><span style=\"color: #000000;\">pokud nov\u011b vybran\u00e9 sv\u00edtidlo spln\u00ed p\u0159edpoklady pro u\u017e\u00edv\u00e1n\u00ed, je pot\u0159eba zv\u00e1\u017eit ekonomiku provozu sv\u00edtidla a n\u00e1vratnost investice.<\/span><\/p>\n<p><span style=\"color: #000000;\">Vlo\u017een\u00ed nov\u00e9ho typu LED zdroje (LED \u017e\u00e1rovky, LED trubice) do star\u00e9ho typu sv\u00edtidla, nemus\u00ed p\u0159in\u00e1\u0161et o\u010dek\u00e1van\u00fd sv\u011bteln\u00fd efekt a \u017eivotnost sv\u00edtidla, vzhledem k vynalo\u017een\u00fdm finan\u010dn\u00edm n\u00e1klad\u016fm na po\u0159\u00edzen\u00ed. V&nbsp;z\u00e1sad\u011b m\u016f\u017ee doj\u00edt i k&nbsp;poru\u0161en\u00ed p\u016fvodn\u00ed konstrukce sv\u00edtidla a n\u00e1sledn\u00e9mu zru\u0161en\u00ed revize.<\/span><\/p>\n<p><span style=\"color: #000000;\">V&nbsp;t\u00e9to dob\u011b jsou je\u0161t\u011b po\u0159izovac\u00ed n\u00e1klady LED sv\u00edtidel o n\u011bco vy\u0161\u0161\u00ed, ne\u017e je zvykem u klasick\u00fdch sv\u00edtidel. Ale je to vyv\u00e1\u017een\u00e9 n\u011bkolikan\u00e1sobn\u011b vy\u0161\u0161\u00ed \u017eivotnost\u00ed a \u00fasporn\u00fdm provozem, kter\u00fd ve v\u00fdsledku p\u0159inese v&nbsp;dan\u00e9m obdob\u00ed v\u00fdrazn\u00e9 \u00faspory v&nbsp;\u0159\u00e1du stovek \u010di tis\u00edc\u016f K\u010d.<\/span><\/p>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"1024\" height=\"683\" src=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-1024x683.jpg\" alt=\"\" class=\"wp-image-432\" srcset=\"https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-1024x683.jpg 1024w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-300x200.jpg 300w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-768x512.jpg 768w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-1536x1024.jpg 1536w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-2048x1366.jpg 2048w, https:\/\/www.vosvetla.cz\/wp-content\/uploads\/2020\/12\/adam-wilson-7Od26RsZ2Rk-unsplash-3-1-1620x1080.jpg 1620w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u00ddHODY LED maj\u00ed asi 10\u00d7 v\u011bt\u0161\u00ed \u00fa\u010dinnost (sv\u00edtivost\/v\u00fdkon) ne\u017e \u017e\u00e1rovky, asi 2\u00d7 v\u011bt\u0161\u00ed ne\u017e z\u00e1\u0159ivky, to je u\u017eite\u010dn\u00e9 v za\u0159\u00edzen\u00edch nap\u00e1jen\u00fdch bateriemi nebo v \u00fasporn\u00fdch za\u0159\u00edzen\u00edch pou\u017eit\u00ed ve sv\u00edtidlech, u kter\u00fdch pot\u0159ebujeme funkci \u201estm\u00edv\u00e1n\u00ed\u201c, nem\u011bn\u00ed svou barvu p\u0159i sn\u00ed\u017een\u00ed nap\u00e1jec\u00edho proudu jsou odoln\u00e9 v\u016f\u010di n\u00e1raz\u016fm a vibrac\u00edm jsou odoln\u00e9 v\u016f\u010di chladu jsou ide\u00e1ln\u00ed na pou\u017eit\u00ed&hellip; <br \/> <a class=\"read-more\" href=\"https:\/\/www.vosvetla.cz\/?page_id=949\">V\u00edce<\/a><\/p>\n","protected":false},"author":1,"featured_media":975,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/pages\/949"}],"collection":[{"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=949"}],"version-history":[{"count":137,"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/pages\/949\/revisions"}],"predecessor-version":[{"id":1098,"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/pages\/949\/revisions\/1098"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=\/wp\/v2\/media\/975"}],"wp:attachment":[{"href":"https:\/\/www.vosvetla.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}