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New Glass Types
 

L-LAH86

Due to the high refractive index optical glass and abnormal partial dispersion(Δ θ g,F)this glass will be suitable for secondary color correction.
Due to the low transformation temrerature this will also be suitable for use in aspheric lens molding processes. L-LAH86 glass has very interesting properties and we think you will find it useful in new lens designs.


  L-LAH86
Optical properties Refractive Index nd 1.90270
Abbe Number νd 31.00
Coloring λ70 410
λ5 360
Anomalous dispersion θ g,F 0.5943
Thermal Properties CTE α
(10-7/°C)
-30~+70°C 61
+100~+300°C 76
Transformation Point Tg(°C) 578
Yield Point At(°C) 610
Mechanical Properties Specific Gravity 4.90
Knoop Hardness Hk 650 [7]
Abrasion Aa 97
Chemical Properties Water Resistance RW(P)
(Powder Method)
1
Acid Resistance RA(p)
(Powder Method)
3
Weathering Resistance W(S)
(Surface Method)
3
Acid Resistance SR 4.2
Phosphate Resistance PR 2.0
Detail Catalog DATAPDF
Available shapes •pressing
•saw cut center-less ground
cylindrical blanks
•polished ball
•cut blanks
Please consult us about available size and tolerance.

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