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Home  > Products and Service  > Optical products  > New Glass Types  > S-LAH53V,S-LAH60V
 
New Glass Types
 

S-LAH53V,S-LAH60V

S-LAH53V and S-LAH60V, which are lower cost optical glasses of S-LAH53 and S-LAH60 for polished lens blank applications. By removing the expensive raw materials included in S-LAH53 and S-LAH60, the cost reduction has been achieved. We are pleased to introduce S-LAH53V and S-LAH60V with the unique properties that provide the advantages in lower product price and higher product performance, as new material that can be widely used for projectors, interchangeable lenses and zoom lenses of SLR.


  S-LAH53V S-LAH53 S-LAH60V S-LAH60
Eco Optical Glass
Refractive Index nd 1.80610 1.80610 1.83400 1.83400
Abbe Number νd 40.93 40.92 37.21 37.16
CTE α
(10-7/°C)
-30~70°C 58 59 58 56
+100~300°C 71 70 73 71
Transformation Point Tg(°C) 603 610 603 612
Yield Point At(°C) 638 637 635 632
Coloring λ80 400 405 430 420
λ5 345 340 350 340
Chemical ResistanceRW(P) 1 1 1 1
RA(P) 3 3 3 3
W(S) 1

1

1

1

SR 51.2 4.2 51.2 4.2
PR 2.0 2.0 1.0 1.0
Specific Gravity 4.41 4.43 4.43 4.43
Knoop Hardness Hk 650〔7〕 640〔6〕 660〔7〕 670〔7〕
Abrasion Aa 61 78 57 78
Detail Catalog DATA PDF PDF PDF PDF
Available shapes
•pressing
•saw cut center-less
groundcylindrical blanks
•cut blanks

•pressing
•saw cut center-less
groundcylindrical blanks
•cut blanks
•pressing
•saw cut center-less
groundcylindrical blanks
•cut blanks

•pressing
•saw cut center-less
groundcylindrical blanks
•cut blanks

Please consult us about available size and tolerance.

 
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