VIVID - UV Phosphors - Green Fine LAP
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General Characteristics
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Physical Characteristics
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| Name |
Cerium Lanthanum Phosphate:Tb |
Body Colour |
White |
| Chemical Formula |
LaPO4:Ce, Tb |
Specific Gravity |
5.2 |
| Application |
Green Component triband phosphor mix for Compact Fluorescent Lamps (Ra>80) |
Particle Size Distribution |
By Laser Diffraction (Sympatec - HELOS) |
| Processing |
Stirrer or Ball Mill |
» fraction £ 1.8 µm |
£ 10.0% |
| Suspension Type |
Butyl acetate or Water |
» fraction £ 6.0 µm |
65.0 ± 15% |
| Packaging |
50 kg in 50 ltr steel drum |
» fraction £ 12.5 µm |
³ 97.0% |
| |
|
Crystal Structure |
Monoclinic |
|
Optical Characteristics of UV Phosphors - Green Fine LAP
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|
—————— 254 nm excitation ——————
|
—————— C.I.E. Chromaticity Coordinates ——————
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| » Quantum efficiency |
95% (relative to ref Green Fine CAT) |
» Powder |
x = 0.350 Y = 0.582 |
| » UV absorption |
98% (relative to ref Green Fine CAT) |
» Lamp TLD 36W |
x = 0.319 Y = 0.537 |
| » Brightness |
102% (relative to ref Green Fine CAT) |
|
|
| » Wavelength at peak |
544 nm |
|
|
| » Bandwidth (50%) |
5 nm |
—————— Lumen Output 100h TLD (36W) —————— |
| » Excitation peak |
241 nm |
» Nominal |
4800 lm |
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