Reptile Lamp Database

ALL DIODES ON FULL

λd (dominant waveL):1048
482.3 nm
pe (excitation purity):1049
0.394
CCT:1019
7272K
CIE1960 u:1045
0.1979
CIE1960 v:1046
0.3048
CQS Qa:1022
82.3 (7272K)
CQS Qa:1025
82.3 (7272K)
CQS Qf:1023
82.3 (7272K)
CQS Qp:1024
84.3 (7272K)
CQS R01:1026
74.9 (7272K)
CQS R02:1027
81.9 (7272K)
CQS R03:1028
81.9 (7272K)
CQS R04:1029
89.9 (7272K)
CQS R05:1030
97.0 (7272K)
CQS R06:1031
91.3 (7272K)
CQS R07:1032
87.8 (7272K)
CQS R08:1033
80.5 (7272K)
CQS R09:1034
76.3 (7272K)
CQS R10:1035
70.4 (7272K)
CQS R11:1036
76.0 (7272K)
CQS R12:1037
94.1 (7272K)
CQS R13:1038
86.3 (7272K)
CQS R14:1039
88.2 (7272K)
CQS R15:1040
82.8 (7272K)
CRI DC:1017
4.22E-3
CRI R01:1002
87.3 (7272K)
CRI R02:1003
93.8 (7272K)
CRI R03:1004
93.8 (7272K)
CRI R04:1005
84.7 (7272K)
CRI R05:1006
85.8 (7272K)
CRI R06:1007
86.6 (7272K)
CRI R07:1008
88.6 (7272K)
CRI R08:1009
75.0 (7272K)
CRI R09:1010
27.3 (7272K)
CRI R10:1011
82.8 (7272K)
CRI R11:1012
84.7 (7272K)
CRI R12:1013
59.5 (7272K)
CRI R13:1014
90.4 (7272K)
CRI R14:1015
97.4 (7272K)
CRI R15:1016
84.5 (7272K)
CRI Ra:1001
87.0 (7272K)
DC<5.4E-3:1018
true
Rf:1042
82.121
Rg:1043
94.181

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 (ASTM spectrum).

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	( 0.3 ; 0.31 )	( 0.42 ; 0.44 )	( 0.28 ; 0.31 ; 0.32 )
CCT	7300 Kelvin	4700 Kelvin	5100 Kelvin
distance		0.1	0.079
colour space			3-D-graph not implemented yet

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 readings of two solarmeters 6.2 (UVB) and 6.5 (UV index) has proven a useful and very simply number to acess the spectral shape in the vitamin-d3-active region.

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).

total ( 0 nm - 0 nm)	629 µW/cm² = 6.29 W/m²
UVC ( 0 nm - 280 nm)	0.268 µW/cm² = 0.00268 W/m²
non-terrestrial ( 0 nm - 290 nm)	0.68 µW/cm² = 0.0068 W/m²
total2 ( 250 nm - 880 nm)	629 µW/cm² = 6.29 W/m²
UVB (EU) ( 280 nm - 315 nm)	36.5 µW/cm² = 0.365 W/m²
UVB (US) ( 280 nm - 320 nm)	45.3 µW/cm² = 0.453 W/m²
UVA+B ( 280 nm - 380 nm)	67.1 µW/cm² = 0.671 W/m²
Solar UVB ( 290 nm - 315 nm)	36 µW/cm² = 0.36 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	17.5 µW/cm² = 0.175 W/m²
UVA (EU) ( 315 nm - 380 nm)	30.6 µW/cm² = 0.306 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	9.2 µW/cm² = 0.092 W/m²
UVA (US) ( 320 nm - 380 nm)	21.7 µW/cm² = 0.217 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	13.1 µW/cm² = 0.131 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	28.3 µW/cm² = 0.283 W/m²
vis. UVA ( 350 nm - 380 nm)	11.9 µW/cm² = 0.119 W/m²
VIS Rep3 ( 350 nm - 600 nm)	424 µW/cm² = 4.24 W/m²
VIS Rep4 ( 350 nm - 700 nm)	520 µW/cm² = 5.2 W/m²
purple ( 380 nm - 420 nm)	27.1 µW/cm² = 0.271 W/m²
VIS ( 380 nm - 780 nm)	541 µW/cm² = 5.41 W/m²
VIS2 ( 400 nm - 680 nm)	487 µW/cm² = 4.87 W/m²
PAR ( 400 nm - 700 nm)	493 µW/cm² = 4.93 W/m²
tmp ( 400 nm - 1100 nm)	546 µW/cm² = 5.46 W/m²
blue ( 420 nm - 490 nm)	163 µW/cm² = 1.63 W/m²
green ( 490 nm - 575 nm)	168 µW/cm² = 1.68 W/m²
yellow ( 575 nm - 585 nm)	21.8 µW/cm² = 0.218 W/m²
orange ( 585 nm - 650 nm)	104 µW/cm² = 1.04 W/m²
red ( 650 nm - 780 nm)	56 µW/cm² = 0.56 W/m²
IR2 ( 655 nm - 685 nm)	15.6 µW/cm² = 0.156 W/m²
IRA ( 700 nm - 1400 nm)	53.5 µW/cm² = 0.535 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	3.39 UV-Index
Pyrimidine dimerization of DNA	23.2 µW/cm²
Photoceratitis	5.17 µW/cm²
Photoconjunctivitis	0.353 µW/cm²
DNA Damage	0.793
Vitamin D3	13.9 µW/cm²
Photosynthesis	339 µW/cm²
Luminosity	1530 lx
Human L-Cone	226 µW/cm²
Human M-Cone	195 µW/cm²
Human S-Cone	134 µW/cm²
CIE X	207 µW/cm²
CIE Y	212 µW/cm²
CIE Z	263 µW/cm²
PAR PPFD	22.4 µmol/m²/s
Extinction preD3	64.8 e-3*m²/mol
Extinction Tachysterol	220 e-3*m²/mol
Exctincition PreD3	31000 m²/mol
Extinction Lumisterol	20.5 m²/mol
Exctincition Tachysterol	279000 m²/mol
Extinction 7DHC	21.5 m²/mol
L-Cone	188 µW/cm²
M-Cone	204 µW/cm²
S-Cone	212 µW/cm²
U-Cone	64.8 µW/cm²
UVR - ICNIRP 2004	3.42 Rel Biol Eff
Melatonin Supression	188 µW/cm²
Blue Light Hazard	141 µW/cm² (92.1 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	15.5 µW/cm²
Lumen Reptil	1550 "pseudo-lx"
Vitamin D3 Degradation	9.92 µW/cm²
Actinic UV	3.38 µW/cm² (22.1 mW/klm)
Exctincition Lumisterol	25900 m²/mol
Exctincition 7DHC	26200 m²/mol
Exctincition Toxisterols	3410 m²/mol
UV-Index2	3.21 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	49.5 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	3.99
Leybold UVB	38.7 µW/cm²
Leybold UVA	12.2 µW/cm²
Leybold UVC	0.0923 µW/cm²
DeltaOhm UVB	46.6 µW/cm²
DeltaOhm UVC	8.21 µW/cm²
Vernier UVB	21.2 µW/cm²
Vernier UVA	25.4 µW/cm²
Gröbel UVA	24.9 µW/cm²
Gröbel UVB	25 µW/cm²
Gröbel UVC	0.147 µW/cm²
Luxmeter	1580 lx
Solarmeter 6.4 (D3)	12.5 IU/min
UVX-31	50.7 µW/cm²
IL UVB	0.0203 µW/cm²
IL UVA	19.1 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	3.05 UV-Index
Solarmeter 6.2 (UVB, post 2010)	27 µW/cm² (Solarmeter Ratio = 8.87)
Solarmeter AlGaN 6.5 UVI sensor	32 UV Index
GenUV 7.1 UV-Index	1.59 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	6.19 W/m²
Solarmeter 4.0 (UVA)	0.385 mW/cm²
LS122 (manuf.)	0.0138 W/m²
ISM400 (first guess)	4.39 W/m²
LS122 (assumption)	0.209 W/m²
ISM400_new	3.72 W/m²
Solarmeter 10.0 (Global Power) (assumption)	5.84 W/m²