VIVID - UV Phosphors - Green Coarse CBT
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General Characteristics
|
Physical Characteristics
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| Name |
Cerium Gadolinium Magnesium Borate:Tb Coarse |
Body Colour |
White |
| Chemical Formula |
(Ce,Gd)MgB5O10:Tb |
Specific Gravity |
4.40 |
| Application |
Green Component Tri-band Phosphor mix high colour rendering fluorescent lamps (Ra>80) |
Particle Size Distribution |
By Laser Diffraction (Sympatec - HELOS) |
| Processing |
Stirrer or Ball Mill |
» fraction £ 1.8 µm |
15.0 ± 5% |
| Suspension Type |
Butyl acetate or Water |
» fraction £ 6.0 µm |
54.0 ± 10% |
| Packaging |
50 kg in 50 ltr steel drum |
» fraction £ 25.0 µm |
³ 99.0% |
| |
|
Crystal Structure |
Magnetoplumbite |
|
Optical Characteristics of UV Phosphors - Green Coarse CBT
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|
—————— 254 nm excitation ——————
|
—————— C.I.E. Chromaticity Coordinates ——————
|
| » Quantum efficiency |
99% |
» Powder |
x = 0.346 Y = 0.581 |
| » UV absorption |
93% |
» Lamp TLD 36W |
x = 0.318 Y = 0.531 |
| » Wavelength at peak |
542 nm |
|
|
| » Bandwidth (50%) |
9 nm |
—————— Lumen Output 100h TLD (36W) —————— |
| » Excitation peak |
272 nm |
» Nominal |
4643 lm |
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