{"id":13582,"date":"2023-08-14T03:15:35","date_gmt":"2023-08-14T03:15:35","guid":{"rendered":"https:\/\/staging.rayzeek.com\/?p=13582"},"modified":"2023-12-26T08:39:00","modified_gmt":"2023-12-26T08:39:00","slug":"what-is-luminance-ratio","status":"publish","type":"post","link":"https:\/\/staging.rayzeek.com\/da\/glossary\/what-is-luminance-ratio\/","title":{"rendered":"Hvad er luminansforhold?"},"content":{"rendered":"

Hvad er luminansforhold?<\/h2>\n\n\n

Luminansforholdet er forholdet mellem gennemsnitlig luminans og vinduesluminans. Det fungerer som en indikator for lysstyrkekontrasten mellem en dagslyskilde og hele synsfeltet. Dette forhold anvendes som en variabel i modeller, der analyserer og sammenligner belysningssystemers ydeevne under hensyntagen til faktorer som vertikal belysningsstyrke, afsk\u00e6rmningsposition og luminansforhold.<\/p>\n

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Kontakt os for komplette PIR-bev\u00e6gelsessensorer, bev\u00e6gelsesaktiverede energibesparende produkter, bev\u00e6gelsessensorafbrydere og kommercielle tilstedev\u00e6relses-\/frav\u00e6rsl\u00f8sninger.<\/p>

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Luminansforholdet er nyttigt til vurdering af den optiske ydeevne og kvalitet af belysningssystemer og elektroniske enheder, s\u00e6rligt sk\u00e6rme. Det benyttes som en parameter ved test af luminansforhold, farve og ensartethed. Ved at evaluere luminansforholdet kan man bestemme en sk\u00e6rms l\u00e6sbarhed og visuelle komfort i forhold til omgivelseslysets lysstyrke sammenlignet med sk\u00e6rmens lysstyrke.<\/p>\n\n\n\n

Derudover er luminansforholdet essentielt for at forst\u00e5 opfattet kontrast og visuel komfort. N\u00e5r der eksempelvis arbejdes med lyse symboler p\u00e5 m\u00f8rk baggrund, p\u00e5virker luminansforholdet mellem baggrunden og de mest lysst\u00e6rke pixels i symbolet den opfattede kontrast. Retningslinjer anbefaler specifikke luminansforhold mellem objekter og deres baggrund baseret p\u00e5 den \u00f8nskede grad af synlighed eller i\u00f8jnefaldhed, hvilket fremh\u00e6ver luminansforholdets rolle i at forbedre synlighed og visuel komfort.<\/p>\n

Bliv inspireret af Rayzeek bev\u00e6gelsessensor-portef\u00f8ljer.<\/h3>

Finder du ikke det, du s\u00f8ger? Fortvivl ikke. Der er altid alternative m\u00e5der at l\u00f8se dine problemer p\u00e5. M\u00e5ske kan en af vores portef\u00f8ljer hj\u00e6lpe.<\/p>

PIR-bev\u00e6gelsessensorer<\/p><\/a><\/div><\/div>

Bev\u00e6gelsessensor-afbrydere<\/p><\/a><\/div><\/div>

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Lavsp\u00e6ndings DC-bev\u00e6gelsessensorer\/d\u00e6mpere<\/p><\/a><\/div><\/div>

Tr\u00e5dl\u00f8se bev\u00e6gelsessensors\u00e6t<\/p><\/a><\/div><\/div><\/div><\/div>\n\n\n\n

Endvidere er luminansforholdet ogs\u00e5 en faktor ved vurdering af uensartethed og indend\u00f8rs belysningsparametre. Illuminating Engineering Society of North America (IESNA) har fastlagt retningslinjer, der definerer acceptable niveauer for uensartethed ved hj\u00e6lp af luminansforhold mellem overflader i synsfeltet. N\u00f8jagtig gengivelse af vinduesluminansfordelinger og indend\u00f8rs luminansforhold er afg\u00f8rende for at vurdere visuel komfort og ydeevneparametre ved hj\u00e6lp af teknikker som Image-Based Lighting (IBL).<\/p>","protected":false},"excerpt":{"rendered":"

Kontakt os for komplette PIR-bev\u00e6gelsessensorer, bev\u00e6gelsesaktiverede energibesparende produkter, kontakter med bev\u00e6gelsessensor og kommercielle tilstedev\u00e6relses-\/frav\u00e6rsl\u00f8sninger.Send en e-mailKontaktformular<\/d<\/p>","protected":false},"author":4,"featured_media":12865,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"IESNA\", \"idxall\": 0, \"keywordtitlesimi\": 0.9568374156951904, \"keywordslugsimi\": 0.9568374156951904, \"paratitlesimi\": 0.5771031379699707, \"paraslugsimi\": 0.5771031379699707, \"slug\": \"what-is-iesna\", \"title\": \"What is IESNA\", \"id\": 14130}, {\"keyword\": \"visual field\", \"idxall\": 0, \"keywordtitlesimi\": 0.9420757293701172, \"keywordslugsimi\": 0.9420757293701172, \"paratitlesimi\": 0.6256347298622131, \"paraslugsimi\": 0.6256347298622131, 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