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Home  > Products and Service  > Optical products  > New Glass Types  > S-LAH98、S-LAH99
 
New Glass Types
 

S-LAH98、S-LAH99

S-LAH98 & S-LAH99 are optical glasses for polished lenses. We are successful in attaining higher transmission, lower cost & lower specific gravity at the region of glasses similar to S-LAH79.S-LAH98 & S-LAH99 can be used in a wide variety of applications which are lenses of Interchangeable lens cameras, Projectors and so on. We are pleased to introduce S-LAH98 & S-LAH99 as optical glasses which can be effective for cost reduction and higher performance of customer's products.


  S-LAH98
(New Product)
S-LAH99
(New Product)
S-LAH79
(Current Product)
Eco Optical Glass
Refractive Index nd 1.95375 2.00100 2.00330
Abbe Number νd 32.32 29.14 28.27
CTE α
(10-7/°C)
-30~70°C 73 75 60
+100~300°C 87 88 71
Transformation Point Tg(°C) 723 725 699
Yield Point At(°C) 757 761 731
Coloring λ70 405 425 460
λ5 355 360 370
Chemical ResistanceRW(P) 1 1 1
RA(P) 1 1 1
W(S) 1 1 2
SR 3.0 2.0 1.0
PR 1.0 1.0 1.0
Specific Gravity 4.94 5.02 5.23
Knoop Hardness Hk 650[7] 650[7] 700[7]
Abrasion Aa 61 * 61 * 61
Detail Catalog DATA 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
Please consult us about product form of supply,available shapes,sizes and tolerances.

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