Taken from picture on package, scaled so peaks at 404, 464 and 579nm (mercury lines) fit.
Spectrum 141: SW-M-SR1 Edit
DeleteMeasurement
| Brand |
Econlux/Terra-Solutions Econlux GmbH www.terra-solutions.de www.econlux.de |
|---|---|
| Lamp Product |
Solar Raptor HID 70W Spot PAR30-Spot (97mmx123mm) >150 µW/cm² @ 30cm 30° |
| Lamp ID |
SW-M-SR1 (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
24/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 | ( 0.32 ; 0.35 ) | ( 0.17 ; 0.33 ) | ( 0.2 ; 0.14 ; 0.26 ) |
| CCT | 6000 Kelvin | 0 Kelvin | 12000 Kelvin |
| distance | 0 | 0.094 | |
| 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) 103 µW/cm² = 1.03 W/m² UVC ( 0 nm - 280 nm) 0 µW/cm² = 0 W/m² non-terrestrial ( 0 nm - 290 nm) 0 µW/cm² = 0 W/m² total2 ( 250 nm - 880 nm) 103 µW/cm² = 1.03 W/m² UVB (EU) ( 280 nm - 315 nm) 0.218 µW/cm² = 0.00218 W/m² UVB (US) ( 280 nm - 320 nm) 0.384 µW/cm² = 0.00384 W/m² UVA+B ( 280 nm - 380 nm) 24.7 µW/cm² = 0.247 W/m² Solar UVB ( 290 nm - 315 nm) 0.218 µW/cm² = 0.00218 W/m² UVA D3 regulating ( 315 nm - 335 nm) 1.55 µW/cm² = 0.0155 W/m² UVA (EU) ( 315 nm - 380 nm) 24.5 µW/cm² = 0.245 W/m² UVA2 (medical definition) ( 320 nm - 340 nm) 2.49 µW/cm² = 0.0249 W/m² UVA (US) ( 320 nm - 380 nm) 24.3 µW/cm² = 0.243 W/m² UVA1 (variant) ( 335 nm - 380 nm) 22.9 µW/cm² = 0.229 W/m² UVA1 (medical) ( 340 nm - 400 nm) 30.7 µW/cm² = 0.307 W/m² vis. UVA ( 350 nm - 380 nm) 18.2 µW/cm² = 0.182 W/m² VIS Rep3 ( 350 nm - 600 nm) 83.6 µW/cm² = 0.836 W/m² VIS Rep4 ( 350 nm - 700 nm) 91.9 µW/cm² = 0.919 W/m² purple ( 380 nm - 420 nm) 19 µW/cm² = 0.19 W/m² VIS ( 380 nm - 780 nm) 76.5 µW/cm² = 0.765 W/m² VIS2 ( 400 nm - 680 nm) 63.5 µW/cm² = 0.635 W/m² PAR ( 400 nm - 700 nm) 64.9 µW/cm² = 0.649 W/m² tmp ( 400 nm - 1100 nm) 69.8 µW/cm² = 0.698 W/m² blue ( 420 nm - 490 nm) 16.2 µW/cm² = 0.162 W/m² green ( 490 nm - 575 nm) 19.5 µW/cm² = 0.195 W/m² yellow ( 575 nm - 585 nm) 4.67 µW/cm² = 0.0467 W/m² orange ( 585 nm - 650 nm) 11 µW/cm² = 0.11 W/m² red ( 650 nm - 780 nm) 6.22 µW/cm² = 0.0622 W/m² IRA ( 700 nm - 1400 nm) 4.91 µW/cm² = 0.0491 W/m² IR2 ( 720 nm - 1100 nm) 4.16 µW/cm² = 0.0416 W/m² IRB ( 1400 nm - 3000 nm) 0 µW/cm² = 0 W/m²
Actionspectra
Erythema 0.031 UV-Index Pyrimidine dimerization of DNA 0.188 µW/cm² Photoceratitis 0.0333 µW/cm² Photoconjunctivitis 0.000701 µW/cm² DNA Damage 0.00269 Vitamin D3 0.0987 µW/cm² Photosynthesis 43.8 µW/cm² Luminosity 199 lx Human L-Cone 29.5 µW/cm² Human M-Cone 25.2 µW/cm² Human S-Cone 15.7 µW/cm² CIE X 25.7 µW/cm² CIE Y 27.9 µW/cm² CIE Z 26.3 µW/cm² PAR 303000 mol photons Extinction preD3 0.545 e-3*m²/mol Extinction Tachysterol 2.02 e-3*m²/mol Exctincition PreD3 351 m²/mol Extinction Lumisterol 0.118 m²/mol Exctincition Tachysterol 4220 m²/mol Extinction 7DHC 0.107 m²/mol L-Cone 24.6 µW/cm² M-Cone 16.8 µW/cm² S-Cone 31.8 µW/cm² U-Cone 49.1 µW/cm² UVR - ICNIRP 2004 0.0275 Rel Biol Eff Melatonin Supression 20.7 µW/cm² Blue Light Hazard 20.4 µW/cm² (102 µW/cm² per 1000 lx) CIE 174:2006 PreVit D3 0.107 µW/cm² Lumen Reptil 253 "pseudo-lx" Vitamin D3 Degradation 0.0967 µW/cm² Actinic UV 0.0267 µW/cm² (1.34 mW/klm) Exctincition Lumisterol 152 m²/mol Exctincition 7DHC 142 m²/mol Exctincition Toxisterols 99 m²/mol
Broadbandmeters
Solarmeter 6.2 (UVB, pre 2010) 0.703 µW/cm² Solarmeter 6.5 (UV-Index, pre 2010) 0.0306 Leybold UVB 0.406 µW/cm² Leybold UVA 19.5 µW/cm² Leybold UVC 2.69E-5 µW/cm² DeltaOhm UVB 2.05 µW/cm² DeltaOhm UVC 0.15 µW/cm² Vernier UVB 0.132 µW/cm² Vernier UVA 11.7 µW/cm² Gröbel UVA 20.9 µW/cm² Gröbel UVB 0.241 µW/cm² Gröbel UVC -0.000105 µW/cm² Luxmeter 210 lx Solarmeter 6.4 (D3) 0.0956 IU/min UVX-31 3.4 µW/cm² IL UVB 0.000449 µW/cm² IL UVA 22.6 µW/cm² Solarmeter 6.5 (UVI, post 2010) 0.0227 UV-Index Solarmeter 6.2 (UVB, post 2010) 0.462 µW/cm² (Solarmeter Ratio = 20.3) Solarmeter AlGaN 6.5 UVI sensor 0.216 UV Index GenUV 7.1 UV-Index 0.0173 UV-Index Solarmeter 10.0 (Global Power) (manuf.) 0.861 W/m² Solarmeter 4.0 (UVA) 0.343 mW/cm² LS122 (manuf.) 0.00054 W/m² ISM400 (first guess) 0.519 W/m² LS122 (assumption) 0.0243 W/m² ISM400_new 0.423 W/m² Solarmeter 10.0 (Global Power) (assumption) 0.75 W/m²