Values extractet vom product graph
Spectrum 61: SW-M-9 Edit
DeleteMeasurement
| Brand |
Namiba Terra Namiba Terra GmbH http://www.namibaterra.de/ |
|---|---|
| Lamp Product |
Replux UV HEAT 100W |
| Lamp ID |
SW-M-9 (03/2010) |
| Spectrometer | - |
| Ballast | - no ballast or default/unknown ballast - |
| Reflector | |
| Distance | 0 cm |
| Age | 0 hours |
| Originator (measurement) | Manufacturer |
Database entry created:
Sarina Wunderlich
4/Mar/2010 ; updated:
Sarina Wunderlich
9/Oct/2011
Colorimetry
Colorimetry is the science to describe physically the human color perception. The wavelength range 380 nm - 780 nm is visible to humans and detected by three different photoreceptors. Many Reptiles see the range 350 nm - 800 nm and have an additional UV photoreceptor in their retina.
Whereas a spectrometer measures the intensity in every tiny wavelength interval resulting in thousands of individual intensities, the human eye only measures three intensities detected by the three cones. The same is true for the reptile eye with usually three or four photoreceptors. Effectively the detailled spectrum displayed above reduces to a much compacter bar graph displayed below. The photoreceptor sensitivites from these L-Cone, M-Cone, S-Cone, and U-Cone are used, they are chosen as an average of measured reptile photoreceptor sensitivity curves. The bar graph also shows as reference the intensity seen by the three or four photoreceptors for average sunlight (id 1).
From these three numbers the colour coordinate and the correlated colour temperature for humans are calculated using the CIE standard method. I adapted this concept to a "3 cone reptile (M,S,U)" and a "4 cone reptile (L,M,S,U)". I am sure, that this adaption to other colour spaces makes sense mathematically and this is also done in scientific research regarding colour vision of animals, however I have not seen calculation of colour temperatures for other animals in the scientific literature. Even if it is hypothetical, at least this shows, how arbitrary the colour temperature is, and that the colour temperature calculated for humans does not apply to reptiles. The colour spaces also show the colour coordinates of different phases of daylight ((ids 1, 338 – 451, 511 – 513 ), indicated by crosses, coloured in the appriximate colour perceived by a human.
| Human (CIE) | 3 cone reptile | 4 cone reptile | |
|---|---|---|---|
| Cone Excitation | |||
| Colour Coordinate | ( 0.36 ; 0.43 ) | ( 0.22 ; 0.33 ) | ( 0.36 ; 0.14 ; 0.21 ) |
| CCT | 4800 Kelvin | 18000 Kelvin | 4400 Kelvin |
| distance | 0.014 | 0.15 | |
| colour space | 3-D-graph not implemented yet |
Vitamin D3 Analysis
Vitamin D3 is produced by UVB radiation around 300 nm. 7DHC/ProD3 present in the skin is converted to PreD3 when absorbing an UV photon. PreD3 can be converted back to ProD3, to Lumisterol, or to Tachysterol when absorbing another UV photon or can be converted to Vitamin D3 in a warm environment.
This process prevents any overdose of vitamin D3 from UV radiation with a spectrum similar to sunlight. As a comparison the solar spectra at 20°(id:14) and at 85°(id:21) solar angle are shown.
The ratio of the two solarmeters 6.2 (UVB) and 6.5 (UV index) readings has proven a useful and very simply number to acess the spectral shape in the vitamin-d3-active region.
Effective Irradiances
Effective irradiances are calculated for all ranges, actionspectra and radiometers currently present in this database.
The calculation method is a numerical implementation (Simpson's rule) of the formula
To learn more about calculating effective irradiances and radiometers I recommend this excellent report on UVB meters: Characterizing the Performance of Integral Measuring UV-Meters (pdf).
The numbers in the following tables can also be used to estimate certain (effective) irradiances from radiomer readings. Example: If the database lists
- range: UVB (US) = 13.8 µW/cm²
- radiometer: Solarmeter 6.2 = 19.6 µW/cm²
Ranges
total ( 0 nm - 0 nm) 18400 µW/cm² = 184 W/m² UVC ( 0 nm - 280 nm) 0.0295 µW/cm² = 0.000295 W/m² non-terrestrial ( 0 nm - 290 nm) 0.91 µW/cm² = 0.0091 W/m² total2 ( 250 nm - 880 nm) 18400 µW/cm² = 184 W/m² UVB (EU) ( 280 nm - 315 nm) 436 µW/cm² = 4.36 W/m² UVB (US) ( 280 nm - 320 nm) 667 µW/cm² = 6.67 W/m² UVA+B ( 280 nm - 380 nm) 3540 µW/cm² = 35.4 W/m² Solar UVB ( 290 nm - 315 nm) 435 µW/cm² = 4.35 W/m² UVA D3 regulating ( 315 nm - 335 nm) 817 µW/cm² = 8.17 W/m² UVA (EU) ( 315 nm - 380 nm) 3090 µW/cm² = 30.9 W/m² UVA2 (medical definition) ( 320 nm - 340 nm) 880 µW/cm² = 8.8 W/m² UVA (US) ( 320 nm - 380 nm) 2880 µW/cm² = 28.8 W/m² UVA1 (variant) ( 335 nm - 380 nm) 2260 µW/cm² = 22.6 W/m² UVA1 (medical) ( 340 nm - 400 nm) 2200 µW/cm² = 22 W/m² vis. UVA ( 350 nm - 380 nm) 1640 µW/cm² = 16.4 W/m² VIS Rep3 ( 350 nm - 600 nm) 10100 µW/cm² = 101 W/m² VIS Rep4 ( 350 nm - 700 nm) 12000 µW/cm² = 120 W/m² purple ( 380 nm - 420 nm) 1100 µW/cm² = 11 W/m² VIS ( 380 nm - 780 nm) 13900 µW/cm² = 139 W/m² VIS2 ( 400 nm - 680 nm) 9710 µW/cm² = 97.1 W/m² PAR ( 400 nm - 700 nm) 10200 µW/cm² = 102 W/m² tmp ( 400 nm - 1100 nm) 14600 µW/cm² = 146 W/m² blue ( 420 nm - 490 nm) 1530 µW/cm² = 15.3 W/m² green ( 490 nm - 575 nm) 3600 µW/cm² = 36 W/m² yellow ( 575 nm - 585 nm) 2000 µW/cm² = 20 W/m² orange ( 585 nm - 650 nm) 1090 µW/cm² = 10.9 W/m² red ( 650 nm - 780 nm) 4590 µW/cm² = 45.9 W/m² IRA ( 700 nm - 1400 nm) 4450 µW/cm² = 44.5 W/m² IR2 ( 720 nm - 1100 nm) 3970 µW/cm² = 39.7 W/m² IRB ( 1400 nm - 3000 nm) 0 µW/cm² = 0 W/m²
Actionspectra
Erythema 27.9 UV-Index Pyrimidine dimerization of DNA 234 µW/cm² Photoceratitis 38.5 µW/cm² Photoconjunctivitis 0.955 µW/cm² DNA Damage 3.3 Vitamin D3 115 µW/cm² Photosynthesis 6360 µW/cm² Luminosity 39400 lx Human L-Cone 5860 µW/cm² Human M-Cone 4970 µW/cm² Human S-Cone 1530 µW/cm² CIE X 4680 µW/cm² CIE Y 5620 µW/cm² CIE Z 2660 µW/cm² PAR 50700000 mol photons Extinction preD3 672 e-3*m²/mol Extinction Tachysterol 2390 e-3*m²/mol Exctincition PreD3 328000 m²/mol Extinction Lumisterol 125 m²/mol Exctincition Tachysterol 3380000 m²/mol Extinction 7DHC 113 m²/mol L-Cone 5060 µW/cm² M-Cone 1980 µW/cm² S-Cone 3030 µW/cm² U-Cone 4030 µW/cm² UVR - ICNIRP 2004 24.5 Rel Biol Eff Melatonin Supression 1980 µW/cm² Blue Light Hazard 1800 µW/cm² (45.8 µW/cm² per 1000 lx) CIE 174:2006 PreVit D3 121 µW/cm² Lumen Reptil 32800 "pseudo-lx" Vitamin D3 Degradation 118 µW/cm² Actinic UV 23.9 µW/cm² (6.07 mW/klm) Exctincition Lumisterol 174000 m²/mol Exctincition 7DHC 146000 m²/mol Exctincition Toxisterols 52200 m²/mol
Broadbandmeters
Solarmeter 6.2 (UVB, pre 2010) 700 µW/cm² Solarmeter 6.5 (UV-Index, pre 2010) 33.3 Leybold UVB 507 µW/cm² Leybold UVA 2000 µW/cm² Leybold UVC 0.0522 µW/cm² DeltaOhm UVB 1130 µW/cm² DeltaOhm UVC 133 µW/cm² Vernier UVB 179 µW/cm² Vernier UVA 1880 µW/cm² Gröbel UVA 2550 µW/cm² Gröbel UVB 276 µW/cm² Gröbel UVC -0.0584 µW/cm² Luxmeter 41800 lx Solarmeter 6.4 (D3) 104 IU/min UVX-31 1260 µW/cm² IL UVB 0.297 µW/cm² IL UVA 2470 µW/cm² Solarmeter 6.5 (UVI, post 2010) 25.9 UV-Index Solarmeter 6.2 (UVB, post 2010) 438 µW/cm² (Solarmeter Ratio = 16.9) Solarmeter AlGaN 6.5 UVI sensor 312 UV Index GenUV 7.1 UV-Index 18.4 UV-Index Solarmeter 10.0 (Global Power) (manuf.) 193 W/m² Solarmeter 4.0 (UVA) 33.9 mW/cm² LS122 (manuf.) 0 W/m² ISM400 (first guess) 161 W/m² LS122 (assumption) 7.28 W/m² ISM400_new 148 W/m² Solarmeter 10.0 (Global Power) (assumption) 185 W/m²