Reptile Lamp Database

SPECTRUM TAKEN AT CENTREPOINT OF THE ENTIRE UNIT

Device Source:1022 FLMT09760
Integration Begin:1023 260.00
Integration End:1024 850.00
Method:1025 Uses Simpson's Rule for integration.
Moles of Photons:1034 9.9268E-11
PAR uMoles/m²/sec:1036 1.2661E2
PAR uMoles:1035 9.6026E-5
Photons/cm²/sec:1032 7.8819E15
Total Photons:1033 5.9781E13
dBm:1030 -4.3444E0
eV:1031 1.4573E14
uJoule/cm²:1028 1.9545E2
uJoule:1026 2.3349E1
uWatt/cm²:1029 3.0785E3
uWatt:1027 3.6776E2

Area (m²):1040 1.1946E-5
Illuminance (lux):1042 5.5806E3
Luminance (candela per m²):1044 5.5806E3
Luminous Flux (lumen):1041 6.6666E-2
Luminous intensity (candela):1043 6.6666E-2
Observer:1038 Photopic
Solid Angle (steradians):1039 1.0
Source:1037 FLMT09760

CCT:1019 9532K
CQS Qa:1022 72.0 (9532K)
CQS Qa:1025 72.0 (9532K)
CQS Qf:1023 58.8 (9532K)
CQS Qp:1024 102.0 (9532K)
CQS R01:1026 76.1 (9532K)
CQS R02:1027 78.9 (9532K)
CQS R03:1028 67.4 (9532K)
CQS R04:1029 73.7 (9532K)
CQS R05:1030 57.4 (9532K)
CQS R06:1031 75.8 (9532K)
CQS R07:1032 86.5 (9532K)
CQS R08:1033 90.1 (9532K)
CQS R09:1034 78.5 (9532K)
CQS R10:1035 52.7 (9532K)
CQS R11:1036 54.4 (9532K)
CQS R12:1037 76.1 (9532K)
CQS R13:1038 83.6 (9532K)
CQS R14:1039 82.0 (9532K)
CQS R15:1040 80.0 (9532K)
CRI DC:1017 5.43E-2
CRI R01:1002 42.7 (9532K)
CRI R02:1003 74.7 (9532K)
CRI R03:1004 55.5 (9532K)
CRI R04:1005 46.8 (9532K)
CRI R05:1006 54.8 (9532K)
CRI R06:1007 69.8 (9532K)
CRI R07:1008 76.1 (9532K)
CRI R08:1009 22.6 (9532K)
CRI R09:1010 -110.8 (9532K)
CRI R10:1011 68.3 (9532K)
CRI R11:1012 42.5 (9532K)
CRI R12:1013 67.2 (9532K)
CRI R13:1014 50.0 (9532K)
CRI R14:1015 68.3 (9532K)
CRI R15:1016 15.0 (9532K)
CRI Ra:1001 55.4 (9532K)
DC<5.4E-3:1018 false

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	( 0.31 ; 0.24 )	( 0.33 ; 0.65 )	( 0.27 ; 0.24 ; 0.47 )
CCT	9500 Kelvin	6300 Kelvin	5600 Kelvin
distance		0.31	0.22
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)	2590 µW/cm² = 25.9 W/m²
UVC ( 0 nm - 280 nm)	0.747 µW/cm² = 0.00747 W/m²
non-terrestrial ( 0 nm - 290 nm)	5.58 µW/cm² = 0.0558 W/m²
total2 ( 250 nm - 880 nm)	2590 µW/cm² = 25.9 W/m²
UVB (EU) ( 280 nm - 315 nm)	81.1 µW/cm² = 0.811 W/m²
UVB (US) ( 280 nm - 320 nm)	82.6 µW/cm² = 0.826 W/m²
UVA+B ( 280 nm - 380 nm)	87.3 µW/cm² = 0.873 W/m²
Solar UVB ( 290 nm - 315 nm)	76.2 µW/cm² = 0.762 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	3.74 µW/cm² = 0.0374 W/m²
UVA (EU) ( 315 nm - 380 nm)	6.26 µW/cm² = 0.0626 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	2.59 µW/cm² = 0.0259 W/m²
UVA (US) ( 320 nm - 380 nm)	4.72 µW/cm² = 0.0472 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	2.52 µW/cm² = 0.0252 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	3.42 µW/cm² = 0.0342 W/m²
vis. UVA ( 350 nm - 380 nm)	1.49 µW/cm² = 0.0149 W/m²
VIS Rep3 ( 350 nm - 600 nm)	1770 µW/cm² = 17.7 W/m²
VIS Rep4 ( 350 nm - 700 nm)	2470 µW/cm² = 24.7 W/m²
purple ( 380 nm - 420 nm)	16.6 µW/cm² = 0.166 W/m²
VIS ( 380 nm - 780 nm)	2490 µW/cm² = 24.9 W/m²
VIS2 ( 400 nm - 680 nm)	2450 µW/cm² = 24.5 W/m²
PAR ( 400 nm - 700 nm)	2470 µW/cm² = 24.7 W/m²
tmp ( 400 nm - 1100 nm)	2500 µW/cm² = 25 W/m²
blue ( 420 nm - 490 nm)	1010 µW/cm² = 10.1 W/m²
green ( 490 nm - 575 nm)	568 µW/cm² = 5.68 W/m²
yellow ( 575 nm - 585 nm)	74.2 µW/cm² = 0.742 W/m²
orange ( 585 nm - 650 nm)	731 µW/cm² = 7.31 W/m²
red ( 650 nm - 780 nm)	93.2 µW/cm² = 0.932 W/m²
IR2 ( 655 nm - 685 nm)	46.1 µW/cm² = 0.461 W/m²
IRA ( 700 nm - 1400 nm)	35.4 µW/cm² = 0.354 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	23.2 UV-Index
Pyrimidine dimerization of DNA	47 µW/cm²
Photoceratitis	33.7 µW/cm²
Photoconjunctivitis	2.54 µW/cm²
DNA Damage	7.39
Vitamin D3	66.2 µW/cm²
Photosynthesis	1830 µW/cm²
Luminosity	6340 lx
Human L-Cone	972 µW/cm²
Human M-Cone	740 µW/cm²
Human S-Cone	864 µW/cm²
CIE X	1120 µW/cm²
CIE Y	865 µW/cm²
CIE Z	1640 µW/cm²
PAR PPFD	110 µmol/m²/s
Extinction preD3	241 e-3*m²/mol
Extinction Tachysterol	932 e-3*m²/mol
Exctincition PreD3	144000 m²/mol
Extinction Lumisterol	179 m²/mol
Exctincition Tachysterol	1190000 m²/mol
Extinction 7DHC	243 m²/mol
L-Cone	846 µW/cm²
M-Cone	739 µW/cm²
S-Cone	1470 µW/cm²
U-Cone	46 µW/cm²
UVR - ICNIRP 2004	29.5 Rel Biol Eff
Melatonin Supression	1010 µW/cm²
Blue Light Hazard	903 µW/cm² (142 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	68.5 µW/cm²
Lumen Reptil	7070 "pseudo-lx"
Vitamin D3 Degradation	29.3 µW/cm²
Actinic UV	29.1 µW/cm² (45.9 mW/klm)
Exctincition Lumisterol	209000 m²/mol
Exctincition 7DHC	288000 m²/mol
Exctincition Toxisterols	10600 m²/mol
UV-Index2	22.4 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	107 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	19.8
Leybold UVB	71 µW/cm²
Leybold UVA	2.94 µW/cm²
Leybold UVC	0.368 µW/cm²
DeltaOhm UVB	64.4 µW/cm²
DeltaOhm UVC	17.5 µW/cm²
Vernier UVB	58.2 µW/cm²
Vernier UVA	7.73 µW/cm²
Gröbel UVA	7.12 µW/cm²
Gröbel UVB	73.9 µW/cm²
Gröbel UVC	0.47 µW/cm²
Luxmeter	6200 lx
Solarmeter 6.4 (D3)	62 IU/min
UVX-31	69.5 µW/cm²
IL UVB	0.0538 µW/cm²
IL UVA	4.25 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	12.2 UV-Index
Solarmeter 6.2 (UVB, post 2010)	43.4 µW/cm² (Solarmeter Ratio = 3.57)
Solarmeter AlGaN 6.5 UVI sensor	73.8 UV Index
GenUV 7.1 UV-Index	3.63 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	25.7 W/m²
Solarmeter 4.0 (UVA)	0.0764 mW/cm²
LS122 (manuf.)	0.0364 W/m²
ISM400 (first guess)	17.3 W/m²
LS122 (assumption)	0.898 W/m²
ISM400_new	13.8 W/m²
Solarmeter 10.0 (Global Power) (assumption)	24.4 W/m²