Optical Glass

lumilass -functional fluorescent glass

  • Lumilass can convert 200nm~400nm feeble light into visible light in high efficiency.
  • Because large quantity of luminous ion is being dispersed, the glass has high resolution.
  • The glass is transparent and in high homogeneity, in superior machinability, and it can be processed in various forms same as other optical glasses.
  • This glass is superior in waterproof.
  • Even if the glass is irradiated by the ultraviolet rays for many hours, there are few deterioration on performances.
lumilass

lumilass - R7(red fluorescence glass)

fluorescent spectrum

fluorescent spectrum

excitation spectrum

excitation spectrum

Transmittance

Transmittance

lumilass - G9(green fluorescence glass)

fluorescent spectrum

fluorescent spectrum

excitation spectrum

excitation spectrum

Transmittance

Transmittance

lumilass - B(blue fluorescence glass)

fluorescent spectrum

fluorescent spectrum

excitation spectrum

excitation spectrum

transmittance

transmittance

optical properties

lumilass-R7 lumilass-G9 lumilass-B
main irradiation wave (nm) 610 540 405
excitation wave range (nm) 200~420 200~390 200~400
minimum excitation sensitivity (µW/cm²) ~1 ~1 ~1
refractive index (nd) 1.644 1.694 1.477

thermal, machinery properties

lumilass-R7 lumilass-G9 lumilass-B
transformation point Tg (℃) 594 660 398
thermal expansion (α×10-7) 86 73 176
specific gravity S.g 3.77 3.76 3.65
Vickers hardness Hv 633 765 344
young's modules E(×108N/m2) 900 1140 650
modulus of rigidity G(×108N/m2) 340 440 250
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