{"id":1323,"date":"2021-07-09T07:00:57","date_gmt":"2021-07-09T07:00:57","guid":{"rendered":"http:\/\/87.108.17.175\/~laatu881\/?page_id=1323"},"modified":"2022-02-23T01:12:16","modified_gmt":"2022-02-22T23:12:16","slug":"valaistuksen-ja-valon-mittayksikot","status":"publish","type":"page","link":"https:\/\/laatuvalo.fi\/en\/valaistuksen-ja-valon-mittayksikot\/","title":{"rendered":"Units of measurement for lighting and light"},"content":{"rendered":"
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Units of measurement for lighting and light<\/h1>\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
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Heading #3<\/div><\/div><\/div><\/th><\/tr><\/thead>\n\t\t\t\t\t\t\t\t
Luminous flux<\/div><\/div><\/div><\/td>
\u03a6<\/div><\/div><\/div><\/td>
Lumen<\/div><\/div><\/div><\/td>
The luminous flux is weighted by the spectral sensitivity of the eye,
the radiant power of the visible light range of a single light source.<\/div><\/div><\/div><\/td><\/tr>
Luminous intensity<\/div><\/div><\/div><\/td>
I<\/div><\/div><\/div><\/td>
Candela (cd) I = f \/ w<\/div><\/div><\/div><\/td>
Luminous intensity describes the light source in a certain direction
the intensity or intensity of the light emitted.<\/div><\/div><\/div><\/td><\/tr>
Illumination intensity<\/div><\/div><\/div><\/td>
E<\/div><\/div><\/div><\/td>
Lux (lx) E = f \/ A<\/div><\/div><\/div><\/td>
The luminous intensity is the luminous flux applied to the area m2 of the illuminated surface.<\/div><\/div><\/div><\/td><\/tr>
Luminance<\/div><\/div><\/div><\/td>
L<\/div><\/div><\/div><\/td>
(cd \/ m_) L = I \/ A (L = I \/ A cos f)<\/div><\/div><\/div><\/td>
Luminance is the emission of the force of light in a particular direction, such as the brightness of surfaces. Luminance Indicates the transition from a light surface to a dark one. A sharp shift can make it difficult to concentrate in a work environment.<\/div><\/div><\/div><\/td><\/tr>
Color temperature<\/div><\/div><\/div><\/td>
K<\/div><\/div><\/div><\/td>
Kelvin K CIE 17.4<\/div><\/div><\/div><\/td>
The concept of color temperature, the division into cold and warm light, is used to define the color of a radiation source. <4000k >4000K = cold light. The color temperature is defined in relation to the absolute temperature of the black body.<\/div><\/div><\/div><\/td><\/tr>
Color rendering index<\/div><\/div><\/div><\/td>
Ra<\/div><\/div><\/div><\/td>
Ra index CIE 17.4<\/div><\/div><\/div><\/td>
The color rendering index tells you the ability of a light source to reproduce colors naturally on a scale of 0-100. All 8 colors are examined.<\/div><\/div><\/div><\/td><\/tr>
Light efficiency<\/div><\/div><\/div><\/td>
B<\/div><\/div><\/div><\/td>
Lm \/ WH = f \/ P.<\/div><\/div><\/div><\/td>
Light efficiency is the luminous flux produced by a light source divided by the power of the light source. When other components of the luminaire are included in the comparison, we talk about the light efficiency of the device.<\/div><\/div><\/div><\/td><\/tr>
Dazzle<\/div><\/div><\/div><\/td>
<\/div><\/div><\/td>
CIE-31<\/div><\/div><\/div><\/td>
The circumstance where it is prevented from seeing the details or becomes uncomfortable to look at. Divided into bullying glare and blocking glare.<\/div><\/div><\/div><\/td><\/tr>
Average life expectancy<\/div><\/div><\/div><\/td>
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hours (h)<\/div><\/div><\/div><\/td>
The average lifespan is the time when 50% of a larger number of products cease to function.<\/div><\/div><\/div><\/td><\/tr>
Service life<\/div><\/div><\/div><\/td>
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hours (h)<\/div><\/div><\/div><\/td>
Service life is the time that 80% of the total amount of light remains.<\/div><\/div><\/div><\/td><\/tr>
Economic life<\/div><\/div><\/div><\/td>
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hours (h)<\/div><\/div><\/div><\/td>
Economic life is the time that 70% of the total amount of light remains.<\/div><\/div><\/div><\/td><\/tr><\/tbody>\n\t\t\t<\/table>\n\t\t<\/div>\n\n\t\t<\/div>\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
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Lighting range<\/h2>\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
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Ceiling lights<\/a><\/h5>\t<\/div>\n\n\t\n
Ceiling lights directly from our online store. In our range you will find a wide variety of ceiling luminaires for public spaces,...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Spotlights<\/a><\/h5>\t<\/div>\n\n\t\n
Spotlights directly from our online store. In our range you will find a wide variety of spotlights for shops, public...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Bathroom lamps<\/a><\/h5>\t<\/div>\n\n\t\n
Bathroom lights directly from our online store. You will find dozens of bathroom lights in our range. Different manufacturers have...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Rechargeable lamp<\/a><\/h5>\t<\/div>\n\n\t\n
Rechargeable lamp directly from our online store for your home or office. In our selection you will find numerous ...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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\n\t\n\t\t\"Tyylik\u00e4s\t<\/a>\n\t
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Floor lamp<\/a><\/h5>\t<\/div>\n\n\t\n
Floor lamps directly from our online store. In our range you will find many different types of floor lamps for your home or...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Bollard light<\/a><\/h5>\t<\/div>\n\n\t\n
Bollard lamps directly from our online store. In our range you will find many different types of bollard lights out. If you...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Table lamp<\/a><\/h5>\t<\/div>\n\n\t\n
Table lamps directly from our online store. In our selection you will find more than 100 different table lamps for home ...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Pendant light<\/a><\/h5>\t<\/div>\n\n\t\n
Pendant lights directly from our online store. In our range you will find over 300 different pendant lights, for restaurants,...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Wall light<\/a><\/h5>\t<\/div>\n\n\t\n
Wall lights. In our selection you will find more than 500 different wall lamps for home or office ....<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Flat lamp<\/a><\/h5>\t<\/div>\n\n\t\n
Table lamps directly from our online store. In our selection you will find several stylish panel lamps for home, office, ...<\/div><\/div>\t<\/div>\n\n\t<\/div>\n
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Recessed luminaire<\/a><\/h5>\t<\/div>\n\n\t\n
Recessed luminaires directly from our online store. In our selection you will find more than 200 different recessed ...<\/div><\/div>\t<\/div>\n\n\t<\/div><\/div>\n <\/div><\/div>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\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":"

Valaistuksen ja valon mittayksik\u00f6t Heading #3 Valovirta \u03a6 Lumen (lm) Valovirta on silm\u00e4n spektriherkkyydell\u00e4 painotettu, yksitt\u00e4isen valonl\u00e4hteen n\u00e4kyv\u00e4n valon alueen s\u00e4teilyteho. Valovoima I Candela (cd) I = f\/w Valovoima kuvaa valonl\u00e4hteest\u00e4 tiettyyn suuntaan s\u00e4teilev\u00e4n valon voimaa eli intensiteetti\u00e4. Valaistusvoimakkuus E Lux (lx) E = f \/A Valaistusvoimakkuus on se valovirta, joka kohdistuu valaistun pinnan alaan […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"iawp_total_views":861,"footnotes":""},"class_list":["post-1323","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/pages\/1323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/comments?post=1323"}],"version-history":[{"count":0,"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/pages\/1323\/revisions"}],"wp:attachment":[{"href":"https:\/\/laatuvalo.fi\/en\/wp-json\/wp\/v2\/media?parent=1323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}