VIVID - UV Phosphors - Green Fine CBT
General Characteristics
|
Physical Characteristics
|
Name |
Cerium Gadolinium Magnesium Borate:Tb Fine |
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 |
20.0 ± 6% |
Suspension Type |
Butyl acetate or Water |
» fraction £ 6.0 µm |
67.0 ± 10% |
Packaging |
50 kg in 50 ltr steel drum |
» fraction £ 12.5 µm |
³ 99.0% |
|
|
Crystal Structure |
Monoclinic |
Optical Characteristics of UV Phosphors - Green Fine CBT
|
—————— 254 nm excitation ——————
|
—————— C.I.E. Chromaticity Coordinates ——————
|
» Quantum efficiency |
90% |
» Powder |
x = 0.346 Y = 0.581 |
» UV absorption |
93% |
» Lamp TLD 36W |
x = 0.318 Y = 0.532 |
» Wavelength at peak |
542 nm |
|
|
» Bandwidth (50%) |
9 nm |
—————— Lumen Output 100h TLD (36W) —————— |
» Excitation peak |
272 nm |
» Nominal |
4620 lm |