{"id":48894,"date":"2025-06-19T11:33:32","date_gmt":"2025-06-19T11:33:32","guid":{"rendered":"https:\/\/tesla-lighting.cz\/?p=48894"},"modified":"2025-06-20T11:04:22","modified_gmt":"2025-06-20T11:04:22","slug":"teslabikar-33-dil-kolik-svetla-je-moc-o-fenomenu-svetelneho-znecisteni","status":"publish","type":"post","link":"https:\/\/tesla-lighting.cz\/en\/teslabikar-33-dil-kolik-svetla-je-moc-o-fenomenu-svetelneho-znecisteni\/","title":{"rendered":"TESLAbik\u00e1\u0159 33. d\u00edl – Kolik sv\u011btla je moc? O fenom\u00e9nu sv\u011bteln\u00e9ho zne\u010di\u0161t\u011bn\u00ed"},"content":{"rendered":"
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TESLAbik\u00e1\u0159 33. d\u00edl – Kolik sv\u011btla je moc? O fenom\u00e9nu sv\u011bteln\u00e9ho zne\u010di\u0161t\u011bn\u00ed<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Sv\u011bteln\u00e9 zne\u010di\u0161t\u011bn\u00ed je nadm\u011brn\u00e9 nebo nespr\u00e1vn\u011b nasm\u011brovan\u00e9 um\u011bl\u00e9 osv\u011btlen\u00ed, kter\u00e9 naru\u0161uje tmu no\u010dn\u00ed oblohy a negativn\u011b ovliv\u0148uje p\u0159\u00edrodu i lidsk\u00e9 zdrav\u00ed.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dopad na p\u0159\u00edrodu, zdrav\u00ed a m\u011bstsk\u00e9 pl\u00e1nov\u00e1n\u00ed<\/b><\/h3>

P\u0159edstavte si m\u011bsto n\u00e1hle pono\u0159en\u00e9 do tmy. Lid\u00e9 zvedaj\u00ed hlavy k obloze a vid\u00ed tis\u00edce hv\u011bzd. \u201eKde se vzaly?“ ptaj\u00ed se mnoz\u00ed. Byly tam v\u017edy \u2013 jen je p\u0159eb\u00edjelo na\u0161e um\u011bl\u00e9 osv\u011btlen\u00ed.<\/span><\/p>

Ve\u010der si rozsv\u011bc\u00edme doma, na ulici, ve v\u00fdloh\u00e1ch i na billboardech. <\/span>Sv\u011btlo<\/b> n\u00e1s obklopuje tak automaticky, \u017ee zapom\u00edn\u00e1me, jak vz\u00e1cn\u00e1 je opravdov\u00e1 <\/span>tma<\/b>. Jen\u017ee pr\u00e1v\u011b tma je pro p\u0159\u00edrodu \u2013 i pro n\u00e1s samotn\u00e9 \u2013 nenahraditeln\u00e1. <\/span>Sv\u011bteln\u00e9 zne\u010di\u0161t\u011bn\u00ed<\/b> je p\u0159itom fenom\u00e9nem modern\u00ed doby, kter\u00fd m\u00e1 mnohem v\u011bt\u0161\u00ed dopad ne\u017e si v\u011bt\u0161ina lid\u00ed uv\u011bdomuje.<\/span><\/p>

\u00a0<\/p>

Kdy\u017e se vypne m\u011bsto<\/b><\/h3>

V roce 1994 do\u0161lo v Los Angeles k v\u00fdpadku proudu po zem\u011bt\u0159esen\u00ed. No\u010dn\u00ed obloha nad m\u011bstem se n\u00e1hle rozjasnila \u2013 ale ne sv\u011btlem, n\u00fdbr\u017e <\/span>hv\u011bzdami<\/b>. Popla\u0161n\u00e9 linky t\u00eds\u0148ov\u00e9ho vol\u00e1n\u00ed praskaly ve \u0161vech. N\u011bkte\u0159\u00ed lid\u00e9 si mysleli, \u017ee jsou sv\u011bdky invaze UFO.<\/strong> Jin\u00ed tvrdili, \u017ee „na nebi vid\u00ed divn\u00fd st\u0159\u00edbrn\u00fd oblak“. Ve skute\u010dnosti to byla <\/span>Ml\u00e9\u010dn\u00e1 dr\u00e1ha<\/b> \u2013 jen ji v\u011bt\u0161ina obyvatel m\u011bsta nikdy p\u0159edt\u00edm nevid\u011bla.<\/span><\/p>

N\u011bco podobn\u00e9ho se stalo i v Chicagu p\u0159i v\u00fdpadku proudu v roce 2022. Soci\u00e1ln\u00ed s\u00edt\u011b zaplavily p\u0159\u00edsp\u011bvky o \u201etajemn\u00e9m nebi“, kter\u00e9 vypadalo \u201ejinak“. To, co d\u0159\u00edve bylo norm\u00e1ln\u00ed, se dnes st\u00e1v\u00e1 z\u00e1\u017eitkem, kter\u00fd vzbuzuje \u00fadiv \u2013 i obavy.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Vizualizace: takto by vypadala no\u010dn\u00ed obloha nad Los Angeles, kdyby v\u0161echna sv\u011btla v m\u011bst\u011b byla vypnuta. Zdroj: fastcompany.com<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Co je sv\u011bteln\u00e9 zne\u010di\u0161t\u011bn\u00ed?<\/b><\/b><\/h3>

Sv\u011bteln\u00e9 zne\u010di\u0161t\u011bn\u00ed<\/b> nen\u00ed jen jasn\u00e1 obloha nad m\u011bstem. Zahrnuje n\u011bkolik specifick\u00fdch jev\u016f:<\/span><\/p>

  • Skyglow<\/b>\u00a0(\u201enebesk\u00e1 z\u00e1\u0159e“) \u2013 z\u00e1\u0159e, kter\u00e1 se odr\u00e1\u017e\u00ed od prachu a vlhkosti ve vzduchu a zakr\u00fdv\u00e1 hv\u011bzdy<\/span><\/li>
  • Osln\u011bn\u00ed<\/b>\u00a0\u2013 p\u0159\u00edli\u0161 siln\u00e9 nebo \u0161patn\u011b sm\u011brovan\u00e9 sv\u011btlo, kter\u00e9 sni\u017euje viditelnost a unavuje o\u010di<\/span><\/li>
  • P\u0159eru\u0161ov\u00e1n\u00ed tmy<\/b>\u00a0\u2013 neust\u00e1l\u00fd jas v m\u00edstech, kde by m\u011bla b\u00fdt tma (nap\u0159. v p\u0159\u00edrodn\u00edch oblastech)<\/span><\/li><\/ul>

    D\u016fsledkem nen\u00ed jen ztr\u00e1ta kr\u00e1sy no\u010dn\u00edho nebe, ale i naru\u0161en\u00ed p\u0159irozen\u00fdch biorytm\u016f cel\u00fdch ekosyst\u00e9m\u016f.<\/span><\/p>

    \u00a0<\/p>

    Jak trp\u00ed p\u0159\u00edroda?<\/b><\/h3>

    Zv\u00ed\u0159ata se po miliony let evoluce p\u0159izp\u016fsobila p\u0159irozen\u00e9mu rytmu sv\u011btla a tmy. <\/span>No\u010dn\u00ed druhy lov\u00ed<\/b> ve tm\u011b, <\/span>pt\u00e1ci migruj\u00ed<\/b> podle hv\u011bzd<\/span>, \u017eelvy kladou vejce<\/b> na tmav\u00e9 pl\u00e1\u017ee. Kdy\u017e je noc p\u0159ehlu\u0161ena sv\u011btlem, doch\u00e1z\u00ed k chaosu.<\/span><\/p>

    Ml\u00e1\u010fata mo\u0159sk\u00fdch \u017eelv, kter\u00e1 by m\u011bla instinktivn\u011b m\u00ed\u0159it k odrazu m\u011bs\u00edce na vodn\u00ed hladin\u011b, jsou zmatena a jdou \u0161patn\u00fdm sm\u011brem \u2013 k um\u011bl\u00e9mu osv\u011btlen\u00ed. Pt\u00e1ci nar\u00e1\u017eej\u00ed do osv\u011btlen\u00fdch budov. Hmyz se vy\u010derp\u00e1 krou\u017een\u00edm kolem pouli\u010dn\u00edch lamp a um\u00edr\u00e1. A jak miz\u00ed hmyz, trp\u00ed i cel\u00e9 potravn\u00ed \u0159et\u011bzce.<\/span><\/p>

    \u00a0<\/p>

    Vliv na lidsk\u00e9 zdrav\u00ed<\/b><\/h3>

    Um\u011bl\u00e9 sv\u011btlo v\u00fdznamn\u011b ovliv\u0148uje i lidsk\u00e9 zdrav\u00ed. Na\u0161e t\u011blo pot\u0159ebuje tmu, aby mohlo produkovat <\/span>melatonin<\/b> \u2013 hormon, kter\u00fd \u0159\u00edd\u00ed sp\u00e1nek, imunitu, a dokonce i n\u00e1ladu. Nadm\u011brn\u00e9 no\u010dn\u00ed sv\u00edcen\u00ed m\u016f\u017ee zp\u016fsobovat:<\/span><\/p>

    • Poruchy sp\u00e1nkov\u00e9ho cyklu<\/b><\/li><\/ul>
      • Chronickou \u00fanavu<\/b><\/li><\/ul>
        • Zv\u00fd\u0161enou hladinu stresu<\/b><\/li><\/ul>
          • Dlouhodob\u011b i z\u00e1va\u017en\u011bj\u0161\u00ed zdravotn\u00ed probl\u00e9my<\/span><\/li><\/ul>

            Modr\u00e9 sv\u011btlo<\/b> z LED diod (pou\u017e\u00edvan\u00e9 v elektronice) nav\u00edc potla\u010duje tvorbu melatoninu v\u00fdrazn\u011bji ne\u017e tradi\u010dn\u00ed zdroje sv\u011btla.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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            Nedostatek p\u0159irozen\u00e9 tmy b\u011bhem sp\u00e1nku se v\u00fdrazn\u011b podep\u00ed\u0161e na va\u0161\u00ed produktivit\u011b a energii v pr\u016fb\u011bhu dne<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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            \u0158e\u0161en\u00ed pro budoucnost: chyt\u0159ej\u0161\u00ed, ne siln\u011bj\u0161\u00ed osv\u011btlen\u00ed<\/b><\/b><\/b><\/h3>

            M\u011bst\u0161t\u00ed pl\u00e1nova\u010di a architekti si za\u010d\u00ednaj\u00ed tento probl\u00e9m uv\u011bdomovat a hledaj\u00ed efektivn\u00ed \u0159e\u0161en\u00ed. M\u00edsto instalace st\u00e1le siln\u011bj\u0161\u00edch lamp p\u0159ich\u00e1z\u00ed nov\u00fd p\u0159\u00edstup k osv\u011btlov\u00e1n\u00ed na\u0161ich m\u011bst a domov\u016f.<\/span><\/p>

            Chytr\u00e9 osv\u011btlen\u00ed<\/b> zahrnuje sv\u00edtidla, kter\u00e1 se aktivuj\u00ed pouze podle pot\u0159eby pomoc\u00ed senzor\u016f pohybu a z\u00e1rove\u0148 sm\u011b\u0159uj\u00ed sv\u011bteln\u00e9 paprsky p\u0159esn\u011b tam, kde jsou pot\u0159eba, \u010d\u00edm\u017e minimalizuj\u00ed rozptyl do okol\u00ed a sm\u011brem k obloze. D\u016fle\u017eitou roli hraje tak\u00e9 <\/span>teplotn\u011b optimalizovan\u00e9 sv\u011btlo<\/b> \u2013 sou\u010dasn\u00fd trend up\u0159ednost\u0148uje teplej\u0161\u00ed odst\u00edny pod 3000 K, kter\u00e9 v\u00fdrazn\u011b m\u00e9n\u011b naru\u0161uj\u00ed no\u010dn\u00ed ekosyst\u00e9m ne\u017e d\u0159\u00edve popul\u00e1rn\u00ed studen\u011b b\u00edl\u00e9 sv\u011btlo.<\/span><\/p>

            Co m\u016f\u017eete ud\u011blat Vy?<\/b><\/p>

            I mal\u00e9 zm\u011bny doma nebo na zahrad\u011b mohou m\u00edt velk\u00fd dopad. Zkuste zhasnout, kdy\u017e to nen\u00ed nutn\u00e9, nebo si po\u0159i\u010fte sv\u00edtidla, kter\u00e1 sv\u00edt\u00ed jen tam, kam maj\u00ed. No\u010dn\u00ed p\u0159\u00edroda v\u00e1m pod\u011bkuje.<\/span><\/p>

            • Vyb\u00edrejte si sv\u00edtidla s krytem, kter\u00fd sm\u011b\u0159uje sv\u011btlo dol\u016f, ne do okol\u00ed a na oblohu<\/span><\/li>
            • Zva\u017ete <\/span>pohybov\u00e9 senzory<\/b> m\u00edsto celono\u010dn\u00edho sv\u00edcen\u00ed<\/span><\/li>
            • D\u00e1vejte p\u0159ednost LED \u017e\u00e1rovk\u00e1m s <\/span>tepl\u00fdm b\u00edl\u00fdm sv\u011btlem<\/b><\/li><\/ul>

              \u00a0<\/p>

              Sv\u011btlo s\u00a0respektem k p\u0159\u00edrod\u011b<\/b><\/h3>

              Sv\u011btlo je \u00fa\u017easn\u00fd vyn\u00e1lez, kter\u00fd zm\u011bnil lidskou civilizaci \u2013 kdy\u017e ho pou\u017e\u00edv\u00e1me s rozumem. A a\u017e n\u011bkdy p\u0159\u00ed\u0161t\u011b uvid\u00edte hv\u011bzdnou oblohu v cel\u00e9 jej\u00ed kr\u00e1se, vzpome\u0148te si, \u017ee to nen\u00ed samoz\u0159ejmost, ale dar. V dob\u011b rostouc\u00edho osv\u011btlen\u00ed na\u0161ich m\u011bst se mo\u017en\u00e1 pr\u00e1v\u011b tma stane t\u00edm nejv\u011bt\u0161\u00edm luxusem.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

              Sv\u011bteln\u00e9 zne\u010di\u0161t\u011bn\u00ed je nadm\u011brn\u00e9 nebo nespr\u00e1vn\u011b nasm\u011brovan\u00e9 um\u011bl\u00e9 osv\u011btlen\u00ed, kter\u00e9 naru\u0161uje tmu no\u010dn\u00ed oblohy a negativn\u011b ovliv\u0148uje p\u0159\u00edrodu i lidsk\u00e9 zdrav\u00ed. Dopad na p\u0159\u00edrodu, zdrav\u00ed a m\u011bstsk\u00e9 pl\u00e1nov\u00e1n\u00ed P\u0159edstavte si m\u011bsto n\u00e1hle pono\u0159en\u00e9 do tmy. Lid\u00e9 zvedaj\u00ed hlavy k obloze a vid\u00ed tis\u00edce hv\u011bzd. \u201eKde se vzaly?“ ptaj\u00ed se mnoz\u00ed. Byly tam v\u017edy \u2013 jen […]<\/p>\n","protected":false},"author":17,"featured_media":48896,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-48894","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novinky"],"yoast_head":"\nTESLAbik\u00e1\u0159 33. d\u00edl - Kolik sv\u011btla je moc? O fenom\u00e9nu sv\u011bteln\u00e9ho zne\u010di\u0161t\u011bn\u00ed<\/title>\n<meta name=\"description\" content=\"Sv\u011btlo hraje v lidsk\u00e9m \u017eivot\u011b nezastupitelnou roli od nepam\u011bti. 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