{"id":2165,"date":"2026-05-27T12:39:19","date_gmt":"2026-05-27T12:39:19","guid":{"rendered":"https:\/\/dev.megopro.cz\/?page_id=2165"},"modified":"2026-06-02T07:29:36","modified_gmt":"2026-06-02T07:29:36","slug":"material-cocek","status":"publish","type":"page","link":"https:\/\/dev.megopro.cz\/?page_id=2165","title":{"rendered":"Materi\u00e1l \u010do\u010dek"},"content":{"rendered":"<h1>Materi\u00e1l \u010do\u010dek<\/h1>\n<div>\n<p class=\"el-content uk-panel uk-display-inline uk-text-middle\">\u010co\u010dky byly p\u016fvodn\u011b vyr\u00e1b\u011bny pouze ze skla, v sou\u010dasnosti je lze vyrobit i z r\u016fzn\u00fdch druh\u016f plast\u016f.\u00a0Nap\u0159. CR-39 (nejpou\u017e\u00edvan\u011bj\u0161\u00ed), d\u00e1le Trivexu a polykarbon\u00e1tu. Tyto materi\u00e1ly sni\u017euj\u00ed riziko rozbit\u00ed, br\u00fdle jsou leh\u010d\u00ed co do hmotnosti. Probl\u00e9mem je m\u011bkkost materi\u00e1lu, jelko\u017e plastov\u00e9 \u010do\u010dky se snad\u011bji po\u0161kr\u00e1bou. Antireflexn\u00ed vrstva sni\u017euje odrazivost \u010do\u010dek ze v\u0161ech materi\u00e1l\u016f, v\u010detn\u011b miner\u00e1ln\u00edho skla. V\u00fdhody pro nositele br\u00fdlov\u00fdch \u010do\u010dek s antireflexn\u00ed \u00fapravou jsou men\u0161\u00ed \u00fanava o\u010d\u00ed p\u0159i um\u011bl\u00e9m osv\u011btlen\u00ed, pr\u00e1ci na po\u010d\u00edta\u010di a sledov\u00e1n\u00ed televize, lep\u0161\u00ed v\u00fdhled pro \u0159idi\u010de a nav\u00edc jde nositeli l\u00e9pe vid\u011bt do o\u010d\u00ed, co\u017e m\u00e1 nezanedbateln\u00fd efekt na vzhled a p\u0159\u00edmou komunikaci. Standardn\u00edm plastov\u00fdm materi\u00e1lem pro v\u00fdrobu plastov\u00fdch br\u00fdlov\u00fdch \u010do\u010dek je allyldiglykokarbon\u00e1t, zn\u00e1m\u00fd tak\u00e9 jako CR39. Tento materi\u00e1l byl objeven ve 40. letech 20. stolet\u00ed chemiky z firmy Columbia Corporation (divize American Pittsburg Plate Glass company). N\u00e1zev CR39 je zkratka za anglick\u00fdch slov Columbia Resin a \u010d\u00edslo 39 je ozna\u010den\u00ed \u00fasp\u011b\u0161n\u00e9 v\u00fdrobn\u00ed s\u00e9rie. Polymer byl p\u016fvodn\u011b vyvinut pro vojensk\u00e9 \u00fa\u010dely. Teprve pozd\u011bji (1955) byl tento materi\u00e1l pou\u017eit firmou LOS (Lentiles Opthtalmiques Speciales) pro v\u00fdrobu br\u00fdlov\u00fdch \u010do\u010dek<\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/06\/ChatGPT-Image-2.-6.-2026-09_07_29.png\" alt=\"\"><br \/>\n<img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/06\/ChatGPT-Image-2.-6.-2026-09_09_43.png\" alt=\"\"><\/p>\n<h1>\n<h2 id=\"headline-style-h2\">Stranice<\/h2>\n<\/h1>\n<div>\n<p class=\"el-content uk-panel uk-display-inline uk-text-middle\"><span>P\u0159i v\u00fdb\u011bru br\u00fdl\u00ed je d\u016fle\u017eit\u00e1 d\u00e9lka stranice, nesm\u00ed b\u00fdt ani moc dlouh\u00e1 ani kr\u00e1tk\u00e1. K \u010demu stranice tak\u00e9 slou\u017e\u00ed je ud\u00e1j o rozm\u011bru obruby ud\u00e1van\u00fd v milimetrech a najdete jej pr\u00e1v\u011b na vnit\u0159n\u00ed stran\u011b stranice Va\u0161ich br\u00fdl\u00ed. M\u016f\u017eete jej snadno zm\u011b\u0159it i sami. Prav\u00edtkem zm\u011b\u0159te horizont\u00e1ln\u011b d\u00e9lku od ohybu kloubu obruby po konec stranice. Standardn\u011b b\u00fdv\u00e1 hodnota d\u00e9lky stranice u br\u00fdl\u00ed d\u00e1msk\u00fdch nebo p\u00e1nsk\u00fdch od 125 do 150 mm. U d\u011btsk\u00fdch br\u00fdl\u00ed je to od 115 do 140 mm.<\/span><\/p>\n<\/div>\n<p><!--more--><br \/>\n<!-- {\"type\":\"layout\",\"children\":[{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"default\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"breadcrumbs\",\"props\":{\"show_current\":true,\"show_home\":true}}]}]}]},{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"default\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"Materi\u00e1l \u010do\u010dek\",\"image_align\":\"left\",\"image_margin\":\"xsmall\",\"title_element\":\"h1\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"el-content uk-panel uk-display-inline uk-text-middle\\\">\u010co\u010dky byly p\u016fvodn\u011b vyr\u00e1b\u011bny pouze ze skla, v sou\u010dasnosti je lze vyrobit i z r\u016fzn\u00fdch druh\u016f plast\u016f.\u00a0Nap\u0159. CR-39 (nejpou\u017e\u00edvan\u011bj\u0161\u00ed), d\u00e1le Trivexu a polykarbon\u00e1tu. Tyto materi\u00e1ly sni\u017euj\u00ed riziko rozbit\u00ed, br\u00fdle jsou leh\u010d\u00ed co do hmotnosti. Probl\u00e9mem je m\u011bkkost materi\u00e1lu, jelko\u017e plastov\u00e9 \u010do\u010dky se snad\u011bji po\u0161kr\u00e1bou. Antireflexn\u00ed vrstva sni\u017euje odrazivost \u010do\u010dek ze v\u0161ech materi\u00e1l\u016f, v\u010detn\u011b miner\u00e1ln\u00edho skla. V\u00fdhody pro nositele br\u00fdlov\u00fdch \u010do\u010dek s antireflexn\u00ed \u00fapravou jsou men\u0161\u00ed \u00fanava o\u010d\u00ed p\u0159i um\u011bl\u00e9m osv\u011btlen\u00ed, pr\u00e1ci na po\u010d\u00edta\u010di a sledov\u00e1n\u00ed televize, lep\u0161\u00ed v\u00fdhled pro \u0159idi\u010de a nav\u00edc jde nositeli l\u00e9pe vid\u011bt do o\u010d\u00ed, co\u017e m\u00e1 nezanedbateln\u00fd efekt na vzhled a p\u0159\u00edmou komunikaci. Standardn\u00edm plastov\u00fdm materi\u00e1lem pro v\u00fdrobu plastov\u00fdch br\u00fdlov\u00fdch \u010do\u010dek je allyldiglykokarbon\u00e1t, zn\u00e1m\u00fd tak\u00e9 jako CR39. Tento materi\u00e1l byl objeven ve 40. letech 20. stolet\u00ed chemiky z firmy Columbia Corporation (divize American Pittsburg Plate Glass company). N\u00e1zev CR39 je zkratka za anglick\u00fdch slov Columbia Resin a \u010d\u00edslo 39 je ozna\u010den\u00ed \u00fasp\u011b\u0161n\u00e9 v\u00fdrobn\u00ed s\u00e9rie. Polymer byl p\u016fvodn\u011b vyvinut pro vojensk\u00e9 \u00fa\u010dely. Teprve pozd\u011bji (1955) byl tento materi\u00e1l pou\u017eit firmou LOS (Lentiles Opthtalmiques Speciales) pro v\u00fdrobu br\u00fdlov\u00fdch \u010do\u010dek<\/p>\n\n\",\"margin_bottom\":\"default\",\"margin_top\":\"default\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"image\",\"props\":{\"image\":\"wp-content\/uploads\/2026\/06\/ChatGPT-Image-2.-6.-2026-09_07_29.png\",\"image_svg_color\":\"emphasis\",\"margin_bottom\":\"default\",\"margin_top\":\"default\"}}]}]}]},{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"default\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"image\",\"props\":{\"image\":\"wp-content\/uploads\/2026\/06\/ChatGPT-Image-2.-6.-2026-09_09_43.png\",\"image_svg_color\":\"emphasis\",\"margin_bottom\":\"default\",\"margin_top\":\"default\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"\n\n<h2 id=\\\"headline-style-h2\\\">Stranice<\/h2>\n\n\",\"image_align\":\"left\",\"image_margin\":\"xsmall\",\"title_element\":\"h1\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"el-content uk-panel uk-display-inline uk-text-middle\\\"><span>P\u0159i v\u00fdb\u011bru br\u00fdl\u00ed je d\u016fle\u017eit\u00e1 d\u00e9lka stranice, nesm\u00ed b\u00fdt ani moc dlouh\u00e1 ani kr\u00e1tk\u00e1. K \u010demu stranice tak\u00e9 slou\u017e\u00ed je ud\u00e1j o rozm\u011bru obruby ud\u00e1van\u00fd v milimetrech a najdete jej pr\u00e1v\u011b na vnit\u0159n\u00ed stran\u011b stranice Va\u0161ich br\u00fdl\u00ed. M\u016f\u017eete jej snadno zm\u011b\u0159it i sami. Prav\u00edtkem zm\u011b\u0159te horizont\u00e1ln\u011b d\u00e9lku od ohybu kloubu obruby po konec stranice. Standardn\u011b b\u00fdv\u00e1 hodnota d\u00e9lky stranice u br\u00fdl\u00ed d\u00e1msk\u00fdch nebo p\u00e1nsk\u00fdch od 125 do 150 mm. U d\u011btsk\u00fdch br\u00fdl\u00ed je to od 115 do 140 mm.<\/span><\/p>\n\n\",\"margin_bottom\":\"default\",\"margin_top\":\"default\"}}]}]}]}],\"version\":\"5.0.34\"} --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Materi\u00e1l \u010do\u010dek \u010co\u010dky byly p\u016fvodn\u011b vyr\u00e1b\u011bny pouze ze skla, v sou\u010dasnosti je lze vyrobit i z r\u016fzn\u00fdch druh\u016f plast\u016f.\u00a0Nap\u0159. CR-39 (nejpou\u017e\u00edvan\u011bj\u0161\u00ed), d\u00e1le Trivexu a polykarbon\u00e1tu. Tyto materi\u00e1ly sni\u017euj\u00ed riziko rozbit\u00ed, br\u00fdle jsou leh\u010d\u00ed co do hmotnosti. Probl\u00e9mem je m\u011bkkost materi\u00e1lu, jelko\u017e plastov\u00e9 \u010do\u010dky se snad\u011bji po\u0161kr\u00e1bou. Antireflexn\u00ed vrstva sni\u017euje odrazivost \u010do\u010dek ze v\u0161ech materi\u00e1l\u016f, v\u010detn\u011b [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-2165","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=\/wp\/v2\/pages\/2165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2165"}],"version-history":[{"count":9,"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=\/wp\/v2\/pages\/2165\/revisions"}],"predecessor-version":[{"id":2457,"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=\/wp\/v2\/pages\/2165\/revisions\/2457"}],"wp:attachment":[{"href":"https:\/\/dev.megopro.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}