Publisher: Gregor Klevž sp, Ahacljeva led cri Street 12a, 2000 Maribor, tax number: SI50809024, reg

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Visible light is just a small limited portion, from a broad spectrum of electromagnetic radiation, which occupies kozmièno radiation to radio waves. led cri Range detection of light with a wavelength between 380 and 780 nm (1nanometer = 1/1 000 000 of a millimeter) occupy all the colors of the spectrum from red through yellow, green, blue, Violet and to serve as a reliable source led cri detection. Short-ultravijolièno radiation biological effect on the body and èloveško on the matter. Figure 1 shows the light spectrum, as part of the electromagnetic action
Light rays are invisible and they perceive as light only when "trèijo" the matter. Sunlight contains all the color spectrum, led cri and, in combination of these, led cri detected light as white. Artificial light sources have a qualitative and quantitative composition of the light spectrum differently.
Good artificial or daylight is the primary condition for well-being at home or in the workplace. The legislation is automatically set lighting led cri with artificial light, depending on the type of work, use of premises, etc. .. Light as directed source need to be considered in plans for the construction of buildings. Designers now have available a range of light sources correctly The attached contribute to the architectural perfection.
Luminous efficiency: light efficiency, the ratio of the luminous flux emitted led cri by the necessary electrical suffer led cri with, is of key importance for the rational use of electric light source. Table no. 1 shows examples of luminous flux Ф and luminous efficiency.
11 lm / W

Indicates the intensity of the partial luminous flux, which focuses on a certain direction led cri and depends on the layout of the light source led cri or from the direction led cri of the light through the lamp. Picture no. 4 shows the luminous intensity.
The partition curve of luminous intensity: to show the distribution led cri of light intensity in the room is used for partition curve of luminous intensity. Polar diagram for a certain lamp that shows us what kind of light strength can we expect from a specified light source and lighting. led cri
In no rotational symmetric luminaires are given two distribution curve of luminous intensity (longitudinal and across the world). To be able to directly compare different light sources, the values refer to 1000 lm luminous flux, therefore, are given in cd / 1000 lm.
Picture no. 5 shows an example out of 30 of the luminous intensity is the luminous led cri flux 1000 lm luminous flux of 100 cd / klm. At 100 W bulb with 1380 lm luminous intensity is below 30 , for example (100 cd / 1000 lm) 138 lm = 138 cd.
Light source with 12.57 lm at the center of a sphere with a radius led cri of 1 m, produced on the upper surface of the sphere with 4 p r 2 = 12.57 m 2 at each location within the luminous intensity of 1 lx. luminous intensity so therefore is 1 cd. In Figure no. 6 shows an example of the illumination E.
In the light source luminous flux 1, produced at a distance of 1 meter from the light source, the lighting is 1 Ix, the 2 m distance fourth Ix, 3 m distance 1/9 Ix, etc.. The light intensity of the light source is 1 cd.
The achievement of adequate illumination space, in addition to the luminous flux, intensity of light and the illuminated surface also depends on the geometric relationship of space and the reflectance of walls, ceiling led cri and floor. Figure 8 shows the ratio of illumination. The table no. 2 shows examples for different lighting in different periods at 12 hours.
18 000
Standard
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Publisher: Gregor Klevž sp, Ahacljeva led cri Street 12a, 2000 Maribor, tax number: SI50809024, registration number: 1570