{"id":14040,"date":"2023-09-10T17:54:31","date_gmt":"2023-09-10T17:54:31","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14040"},"modified":"2023-12-26T08:43:29","modified_gmt":"2023-12-26T08:43:29","slug":"what-is-brightness","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/cs\/glosar\/co-je-jas","title":{"rendered":"Co je to jas"},"content":{"rendered":"

Co je to jas<\/h2>

Jas je intenzita a sv\u00edtivost sv\u011btla vyza\u0159ovan\u00e9ho nebo odr\u00e1\u017een\u00e9ho sv\u011bteln\u00fdm zdrojem nebo povrchem. Je to m\u00edra vn\u00edman\u00e9 \u00farovn\u011b sv\u011btla a m\u016f\u017ee se m\u011bnit v z\u00e1vislosti na faktorech, jako je sv\u011bteln\u00fd tok zdroje sv\u011btla, odrazivost povrchu a vn\u00edm\u00e1n\u00ed pozorovatele. <\/p>

Hled\u00e1te \u0159e\u0161en\u00ed \u00faspory energie aktivovan\u00e9 pohybem?<\/h3>

Obra\u0165te se na n\u00e1s pro kompletn\u00ed PIR senzory pohybu, produkty pro \u00fasporu energie aktivovan\u00e9 pohybem, sp\u00edna\u010de se senzorem pohybu a komer\u010dn\u00ed \u0159e\u0161en\u00ed pro detekci p\u0159\u00edtomnosti\/volnosti.<\/p>

Odeslat e-mail<\/p><\/a><\/div><\/div>

Kontaktn\u00ed formul\u00e1\u0159<\/p><\/a><\/div><\/div>

Chat Online<\/p><\/a><\/div><\/div><\/div><\/div>

Jas se \u010dasto pou\u017e\u00edv\u00e1 k porovn\u00e1n\u00ed sv\u011bteln\u00e9ho v\u00fdkonu r\u016fzn\u00fdch zdroj\u016f a kvantifikuje se pomoc\u00ed jednotek, jako jsou lumeny nebo zd\u00e1nliv\u00e1 velikost. Lumeny m\u011b\u0159\u00ed celkov\u00e9 mno\u017estv\u00ed viditeln\u00e9ho sv\u011btla vyza\u0159ovan\u00e9ho zdrojem, zat\u00edmco zd\u00e1nliv\u00e1 magnituda se pou\u017e\u00edv\u00e1 k m\u011b\u0159en\u00ed jasu nebesk\u00fdch objekt\u016f, jako jsou Slunce a M\u011bs\u00edc. Slunce se zd\u00e1nlivou magnitudou -26,7 je pova\u017eov\u00e1no za nejjasn\u011bj\u0161\u00ed hv\u011bzdu, zat\u00edmco M\u011bs\u00edc se zd\u00e1nlivou magnitudou -12,7 je o 14 magnitud slab\u0161\u00ed ne\u017e Slunce.<\/p>

Jas m\u016f\u017ee b\u00fdt slo\u017eit\u00fd pojem a \u010dasto se vyjad\u0159uje v logaritmick\u00e9 stupnici. Tato stupnice pom\u00e1h\u00e1 pochopit vztah mezi r\u016fzn\u00fdmi \u00farovn\u011bmi jasu. Krom\u011b toho m\u016f\u017ee b\u00fdt jas ovlivn\u011bn r\u016fzn\u00fdmi faktory, jako je typ sv\u011bteln\u00e9ho zdroje, jeho \u00fa\u010dinnost a okoln\u00ed sv\u011bteln\u00e9 podm\u00ednky.<\/p>

Inspirujte se portfoliem pohybov\u00fdch senzor\u016f Rayzeek.<\/h3>

Nena\u0161li jste to, co jste cht\u011bli? Nebojte se. V\u017edy existuj\u00ed alternativn\u00ed zp\u016fsoby \u0159e\u0161en\u00ed va\u0161ich probl\u00e9m\u016f. Mo\u017en\u00e1 v\u00e1m pom\u016f\u017ee n\u011bkter\u00e9 z na\u0161ich portfoli\u00ed.<\/p>

Senzory pohybu PIR<\/p><\/a><\/div><\/div>

Sp\u00edna\u010de s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div>

Senzory p\u0159\u00edtomnosti<\/p><\/a><\/div><\/div>

Senzor pohybu klimatizace<\/p><\/a><\/div><\/div>

Sv\u011bteln\u00e9 p\u00e1sky s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div>

N\u00edzkonap\u011b\u0165ov\u00e9 stejnosm\u011brn\u00e9 sn\u00edma\u010de pohybu\/stm\u00edva\u010de<\/p><\/a><\/div><\/div>

Sady bezdr\u00e1tov\u00fdch sn\u00edma\u010d\u016f pohybu<\/p><\/a><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

Jas je intenzita a sv\u00edtivost sv\u011btla vyza\u0159ovan\u00e9ho nebo odr\u00e1\u017een\u00e9ho sv\u011bteln\u00fdm zdrojem nebo povrchem. Je to m\u00edra vn\u00edman\u00e9 \u00farovn\u011b sv\u011btla a m\u016f\u017ee se m\u011bnit v z\u00e1vislosti na faktorech, jako je sv\u011bteln\u00fd tok zdroje sv\u011btla, odrazivost povrchu a vn\u00edm\u00e1n\u00ed pozorovatele.<\/p>","protected":false},"author":4,"featured_media":12863,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"efficiency\", \"idxall\": 0, \"keywordtitlesimi\": 0.8984983563423157, \"keywordslugsimi\": 0.8984983563423157, \"paratitlesimi\": 0.49495530128479004, \"paraslugsimi\": 0.49495530128479004, \"slug\": \"what-is-efficiency\", \"title\": \"What is Efficiency\", \"id\": 14188}, {\"keyword\": \"type of light source\", \"idxall\": 0, \"keywordtitlesimi\": 0.8559897541999817, \"keywordslugsimi\": 0.8559897541999817, \"paratitlesimi\": 0.6211599111557007, \"paraslugsimi\": 0.6211599111557007, \"slug\": \"what-is-light-source\", \"title\": \"What is Light Source\", \"id\": 13922}, {\"keyword\": \"relationship between different levels of brightness\", \"idxall\": 0, \"keywordtitlesimi\": 0.8199818134307861, \"keywordslugsimi\": 0.8199818134307861, \"paratitlesimi\": 0.7011615037918091, \"paraslugsimi\": 0.7011615037918091, \"slug\": \"what-is-level-of-illumination\", \"title\": \"What is Level of Illumination\", \"id\": 13762}, {\"keyword\": \"type of light source\", \"idxall\": 0, \"keywordtitlesimi\": 0.7874685198068619, \"keywordslugsimi\": 0.8130467712879181, \"paratitlesimi\": 0.5648902237415314, \"paraslugsimi\": 0.55885528922081, \"slug\": \"types-of-light-switches\", \"title\": \"Types of Light Switches and How to Choose One\", \"id\": 12687}, {\"keyword\": \"surrounding light conditions\", \"idxall\": 0, \"keywordtitlesimi\": 0.7883843243122102, \"keywordslugsimi\": 0.7883843243122102, \"paratitlesimi\": 0.6352903246879578, \"paraslugsimi\": 0.6352903246879578, \"slug\": \"daylight-dimming-and-daylight-harvesting-controls\", \"title\": \"Daylight Dimming and Daylight Harvesting Controls\", \"id\": 8726}, {\"keyword\": \"Brightness\", \"idxall\": 3, \"keywordtitlesimi\": 0.7752655148506165, \"keywordslugsimi\": 0.7752655148506165, \"paratitlesimi\": 0.6880736947059631, \"paraslugsimi\": 0.6880736947059631, \"slug\": \"what-is-quantity-of-light\", \"title\": \"What is Quantity of Light\", \"id\": 13530}, {\"keyword\": \"Brightness\", \"idxall\": 3, \"keywordtitlesimi\": 0.7657206058502197, \"keywordslugsimi\": 0.7657206058502197, \"paratitlesimi\": 0.7011615037918091, \"paraslugsimi\": 0.7011615037918091, \"slug\": \"what-is-level-of-illumination\", \"title\": \"What is Level of Illumination\", \"id\": 13762}, {\"keyword\": \"Brightness\", \"idxall\": 3, \"keywordtitlesimi\": 0.7655124068260193, \"keywordslugsimi\": 0.7655124068260193, \"paratitlesimi\": 0.6952877044677734, \"paraslugsimi\": 0.6952877044677734, \"slug\": \"what-is-light-quality\", \"title\": \"What is Light Quality\", \"id\": 13951}, {\"keyword\": \"efficiency\", \"idxall\": 0, \"keywordtitlesimi\": 0.7653604745864868, \"keywordslugsimi\": 0.7653604745864868, \"paratitlesimi\": 0.6068109273910522, \"paraslugsimi\": 0.6068109273910522, \"slug\": \"what-is-lamp-efficiency\", \"title\": \"What is Lamp Efficiency\", \"id\": 14301}, {\"keyword\": \"surrounding light conditions\", \"idxall\": 0, \"keywordtitlesimi\": 0.7648044228553772, \"keywordslugsimi\": 0.7648044228553772, \"paratitlesimi\": 0.7011615037918091, \"paraslugsimi\": 0.7011615037918091, \"slug\": \"what-is-level-of-illumination\", \"title\": \"What is Level of Illumination\", \"id\": 13762}, {\"keyword\": \"efficiency\", \"idxall\": 0, \"keywordtitlesimi\": 0.7635672688484192, \"keywordslugsimi\": 0.7635672688484192, \"paratitlesimi\": 0.5746862888336182, \"paraslugsimi\": 0.5746862888336182, \"slug\": \"what-is-fixture-efficiency\", \"title\": \"What is Fixture Efficiency\", \"id\": 13441}, {\"keyword\": \"Brightness\", \"idxall\": 3, \"keywordtitlesimi\": 0.7534736394882202, \"keywordslugsimi\": 0.7534736394882202, \"paratitlesimi\": 0.6925206184387207, \"paraslugsimi\": 0.6925206184387207, \"slug\": \"what-is-luminance\", \"title\": \"What is Luminance\", \"id\": 14235}]","article_topic":"","article_fact_check":"","mt_social_share":"","mt_content_meta":"","mt_glossary_display":"","glossary_heading":"","glossary":"Brightness","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-14040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"\nWhat is Brightness - 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