[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.zotify.cz\/princip-svetlovodu-vyuzivali-lide-jiz-ve-staroveku\/#Article","mainEntityOfPage":"https:\/\/www.zotify.cz\/princip-svetlovodu-vyuzivali-lide-jiz-ve-staroveku\/","headline":"Princip sv\u011btlovodu vyu\u017e\u00edvali lid\u00e9 ji\u017e ve starov\u011bku","name":"Princip sv\u011btlovodu vyu\u017e\u00edvali lid\u00e9 ji\u017e ve starov\u011bku","description":"Prvn\u00ed modern\u00ed sv\u011btlovod ve tvaru tubusu se objevil p\u0159ibli\u017en\u011b p\u0159ed 70 lety, uplatn\u011bn\u00ed v\u00a0pr\u016fmyslov\u00e9 v\u00fdrob\u011b v\u0161ak sv\u011btlovody na\u0161ly a\u017e.","datePublished":"2025-07-18","dateModified":"2025-07-18","author":{"@type":"Person","@id":"https:\/\/www.zotify.cz\/author\/#Person","name":"","url":"https:\/\/www.zotify.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/dcb1aeb5e7d95014cdc92e76cf3c72f6b456579bf773ad0081803a6569ffc19c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/dcb1aeb5e7d95014cdc92e76cf3c72f6b456579bf773ad0081803a6569ffc19c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"zotify.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.zotify.cz\/wp-content\/uploads\/img_a308348_w1932_t1519463935.jpg","url":"https:\/\/www.zotify.cz\/wp-content\/uploads\/img_a308348_w1932_t1519463935.jpg","height":0,"width":0},"url":"https:\/\/www.zotify.cz\/princip-svetlovodu-vyuzivali-lide-jiz-ve-staroveku\/","wordCount":483,"articleBody":"\tPrvn\u00ed modern\u00ed sv\u011btlovod ve tvaru tubusu se objevil p\u0159ibli\u017en\u011b p\u0159ed 70 lety, uplatn\u011bn\u00ed v\u00a0pr\u016fmyslov\u00e9 v\u00fdrob\u011b v\u0161ak sv\u011btlovody na\u0161ly a\u017e v\u00a0polovin\u011b 90. let. Sv\u011btlovod vyu\u017e\u00edv\u00e1 principu sv\u011bteln\u00e9 energie, kter\u00e1 je j\u00edm\u00e1na koul\u00ed nad povrchem ter\u00e9nu, zpravidla na st\u0159e\u0161e, anebo v\u00a0p\u0159\u00edpad\u011b sklepn\u00edch prostor nad povrchem zem\u011b. Zachycen\u00e9 sv\u011bteln\u00e9 paprsky se l\u00e1mou ve speci\u00e1ln\u00edm potrub\u00ed, kter\u00e9 je uvnit\u0159 opat\u0159eno velmi lesklou vrstvou. Ta odr\u00e1\u017e\u00ed sv\u011btlo pom\u011brn\u011b zna\u010dnou m\u011brou – v\u00a0rozmez\u00ed od 95 do 99,7 procent sm\u011brem k\u00a0difuzn\u00edmu sklen\u011bn\u00e9mu povrchu. Paprsky sv\u011btla se t\u00edmto zp\u016fsobem \u0161\u00ed\u0159\u00ed po cel\u00e9m prostoru tubusu. Ztr\u00e1ta sv\u011btla je tedy zanedbateln\u00e1 a za\u0159\u00edzen\u00ed se m\u016f\u017ee vyu\u017e\u00edt i v\u00a0dlouh\u00fdch rozvodech, nap\u0159. pro chodby a schodi\u0161t\u011b, do koupelen, \u0161patn\u011b osv\u011btlen\u00fdch p\u0159eds\u00edn\u00ed, a na toalety bez oken. Sv\u011btlovod tak zajist\u00ed dostatek denn\u00edho sv\u011btla, ani\u017e by bylo t\u0159eba sv\u00edtit v\u00a0pr\u016fb\u011bhu dne.\t\tSv\u011btlovody o pr\u016fm\u011bru i n\u011bkolika des\u00edtek centimetr\u016f\tIde\u00e1ln\u00ed pro um\u00edst\u011bn\u00ed sv\u011btlovodu je vstupn\u00ed hala nebo \u0161atny v\u00a0komer\u010dn\u00edch objektech, kde nen\u00ed t\u0159eba pl\u00fdtvat energi\u00ed pro zaji\u0161t\u011bn\u00ed denn\u00edho sv\u011btla z\u00a0um\u011bl\u00e9ho zdroje. Velk\u00e9 sv\u011btlovody se mohou instalovat i do v\u00fdrobn\u00edch hal a sklad\u016f, kde mus\u00ed zam\u011bstnanci pracovat p\u0159i nedostatku denn\u00edho sv\u011btla, a \u010dastokr\u00e1t bez oken.\t\tKonstrukci sv\u011btlovodu tvo\u0159\u00ed potrub\u00ed o pr\u016fm\u011bru od 20 do 55 cm. Mal\u00fd pr\u016f\u0159ez kolem 20 cm dok\u00e1\u017ee osv\u011btlit nap\u0159. toaletu nebo chodbu o v\u00fdm\u011b\u0159e 10 m \u00b2. Optim\u00e1ln\u00ed d\u00e9lka sv\u011btlovodu by nem\u011bla p\u0159es\u00e1hnout 5 metr\u016f. N\u011bkter\u00e9 v\u00fdrobn\u00ed provozy m\u00edvaj\u00ed b\u011b\u017en\u011b pr\u016fm\u011br sv\u011btlovodu a\u017e 1 metr, ale jeho d\u00e9lka op\u011bt nep\u0159es\u00e1hne 5 metr\u016f ( kv\u016fli sl\u00e1bnouc\u00ed intenzit\u011b sv\u011btla se vzd\u00e1lenost\u00ed od sv\u011bteln\u00e9ho zdroje).\t\tSv\u011btlovod, nebo \u0161erovod?\tTubus se instaluje pom\u011brn\u011b snadno, na rozd\u00edl od st\u0159e\u0161n\u00edho okna nen\u00ed t\u0159eba zasahovat do konstrukce objektu, tubus dob\u0159e izoluje okoln\u00ed prost\u0159ed\u00ed bez tvorby tepeln\u00fdch most\u016f, nesr\u00e1\u017e\u00ed se na n\u011bm voda a jeho sou\u010d\u00e1st\u00ed m\u016f\u017ee b\u00fdt i UV filtr. Aby sv\u011btlovod nebyl tzv. \u201e\u0161erovodem\u201c, jak se mu n\u011bkdy p\u0159ezd\u00edv\u00e1, mus\u00ed b\u00fdt vyroben z\u00a0kvalitn\u00edho materi\u00e1lu. T\u00edm nejvhodn\u011bj\u0161\u00edm je polyakryl\u00e1t. Vyh\u00fdbejte se naopak polykarbon\u00e1tu, kter\u00fd postupn\u011b ztr\u00e1c\u00ed sv\u00e9 vlastnosti vlivem smogu. Kvalitn\u00ed polyakryl\u00e1tov\u00fd sv\u011btlovod po\u0159\u00edd\u00edte v\u00a0nejmen\u0161\u00edm pr\u016f\u0159ezu ji\u017e za 7 tis\u00edc korun (bez mont\u00e1\u017ee), u v\u011bt\u0161\u00edch pr\u016fm\u011br\u016f po\u010d\u00edtejte samoz\u0159ejm\u011b s\u00a0vy\u0161\u0161\u00ed \u010d\u00e1stkou.                                                                                                                                                                                                                                                                                                                                                                                                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