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Materials - Light Reflecting Factors

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Some materials and their light reflecting factors:

Materials - Light Reflecting Factors
MaterialReflection Factor
(%)
Aluminum coatings, matte 55 - 56
Aluminum, anodized, matte 80 - 85
Aluminum, matte 55 - 75
Aluminum, polished 65 - 75
Aluminum, pure, highly polished 80 - 87
Body where no light is reflected (Black body) 0
Body where all light is reflected 100
Brick, red 10 - 15
Chrome, polished 60 - 70
Concrete, rough 20 - 30
Copper, highly polished 70 - 75
Crops 15 - 24
Forrest 7 - 14
Granite 20 - 25
Ice 32 - 38
Lacquer, pure white 80 - 85
Limestone 35 - 55
Marble, polished 30 - 70
Nickel, highly polished 50 - 60
Oak, light polished 25 - 35
Paint, brown 20 - 30
Paint, dark blue 15 - 20
Paint, dark green 15 - 20
Paint, dark red 15 - 20
Paint, light green 45 - 55
Paint, light yellow 60 - 70
Paint, medium grey 25 - 35
Paint, white 75 - 85
Paper, white 70 - 80
Plaster, dark 15 - 25
Plaster, light 40 - 45
Plywood, rough 25 - 40
Sand - dry 38 - 42
Sand - wet 22 - 28
Sandstone 20 - 40
Snow - fresh 85
Snow - old 45
Silver, highly polished 90 - 92
Silvered mirror, behind glass 80 - 88
Soil - dry 22 - 34
Soil - dark wet 7 - 14
Stainless steel 50
Vitreous Enamel, white 65 - 75
Water 7 - 9

Albedo is the diffuse reflected solar radiation related to the total solar radiation.

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Miscellaneous

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Absorbed Solar Radiation

Solar radiation absorbed by various materials.

Electromagnetic Spectrum

The electromagnetic spectrum with wavelengths and frequencies.

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Energy consumption of lighting systems

Ligths - Color Temperatures

Light sources and their color irradiation in degrees Kelvin.

Luminous Efficacy

The visible light produced by light sources.

Optical Distance Law

Geometric dilution of light vs. distance.

Physical Constants

Physical constants - SI Units.

Refractive Index common Liquids, Solids and Gases

Some common fluids and their refractive index.

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