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New Glass Types
 

S-NPH53

We developed the environmentally friendly optical glass S-NPH53 to have high refractive index and improved light transmission at shorter wavelengths.
Lead glass was traditionally used for optical systems which required materials with high refractive indices, high dispersion and good transmission in the short wavelength region.
S-NPH53 provides optical performance similar to our S-TIH53 glass, while providing better internal transmittance.
S-NPH53 also offers these features: low specific gravity, excellent chemical durability, high mechanical strength, and improved weathering resistance.
 S-NPH53S-TIH53
Eco Optical Glass
Refractive Indexnd1.846661.84666
Abbe Number νd 23.88 23.78
Transformation Point Tg(°C)621619
Internal Transmittance
(10mmt)
400nm0.860.72
440nm0.9430.927
650nm0.9940.986
Coloringλ80--
λ70 400 420
λ5 360 370
Chemical ResistanceRW(P)11
RA(P)11
W(S)11-2
SR2.31.0
PR1.01.0
Specific Gravity3.783.52
Detail Catalog DATAPDFPDF

Please consult us about available shape, size and tolerance.

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