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New Glass Types
 

L-LAH94

L-LAH94 is an optical glass recommended for glass molding applications located in the region of L-LAH85V that is widely used conventionally. By tantalum-free and by reducing usage of expensive raw materials, L-LAH94 provides significant cost reduction and also features low specific gravity. This is the third glass type that has been developed in the same concept as L-LAH90 and L-LAH91 that have been already released. We are pleased to introduce L-LAH94 optical glass with these unique properties to provide advantages in technical design and decreased production costs.


  L-LAH94 L-LAH85V
Eco Optical Glass
Refractive Index nd 1.86100 1.85400
Abbe Number νd 37.10 40.38
CTE α
(10-7/°C)
-30~70°C 62 63
+100~300°C 77 77
Transformation Point Tg(°C) 593 613
Yield Point At(°C) 628 653
Coloring λ70 390 380
λ5 350 340
Chemical ResistanceRW(P) 1 1
RA(P) 4 3
W(S) 3 4
SR 51.2 3.2
PR 2.0 1.0
Specific Gravity 4.89 5.25
Knoop Hardness Hk 660[7] 650[7]
Abrasion Aa 77 61
Detail Catalog DATA PDF PDF
Available shapes •pressing
•saw cut center-less
groundcylindrical
•polished ball
•cut blanks
•spherical polished preform
•pressing
•saw cut center-less
groundcylindrical
•polished ball
•cut blanks
•spherical polished preform

Please consult us about available size and tolerance.

 
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