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New Glass Types


OHARA developed L-LAH84 which has an even lower transformation point than L-LAH81. The temperature for mold pressing can be lower below 600 deg C. This lower temperature will contribute to longer molding equipment lifetimes, while also allowing for shorter production cycle times.

Eco Optical Glass
Refractive Index nd 1.80860
Abbe Number νd 40.42
-30~70°C 64
+100~300°C 79
Transformation Point Tg(°C) 527
Yield Point At(°C) 568
Coloring λ80 400
λ5 335
Chemical ResistanceRW(P)1
RA(P) 3
W(S) 2
SR 51.3
PR 2.2
Specific Gravity 4.62
Knoop Hardness Hk 610 [6]
Abrasion Aa 78
Detail Catalog DATAPDF

Available shape are pressing, saw cut center-less ground cylindrical blanks, polished ball and cut blanks.
Please consult us about available size and tolerance.

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