L-LAH85V
The composition of L-LAH85, a general-purpose glass material for molded small aspherical lenses of digital cameras, has been optimized for improved molding workability, while maintaining nd-νd.
We recommend L-LAH85V as a material that can be molded at temperatures lower than L-LAH85, with shorter molding tact time and higher compatibility with separation film (protective film) of metallic molds (based on results obtained by our company).
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L-LAH85V |
L-LAH85 |
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| Eco Optical Glass |
○ |
○ |
|---|
| Refractive Index nd |
1.85400 |
1.85400 |
|---|
| Abbe Number νd |
40.4
40.38 |
40.4
40.39 |
|---|
CTE α
(10-7/°C) | -30～70°C |
62 |
65 |
|---|
| +100～300°C |
75 |
78 |
|---|
| Transformation Point Tg(°C) |
615 |
614 |
|---|
| Yield Point At(°C) |
656 |
659 |
|---|
| Coloring |
λ70 |
380 |
375 |
|---|
| λ5 |
340 |
330 |
|---|
| Chemical Resistance | RW(P) |
1 |
1 |
|---|
| RA(P) |
3 |
2 |
|---|
| W(S) |
3 |
4 |
|---|
| SR |
4.2 |
2.2 |
|---|
| PR |
1.0 |
1.0 |
|---|
| Specific Gravity |
5.25 |
5.09 |
|---|
| Knoop Hardness Hk |
690[7] |
650[7] |
|---|
| Abrasion Aa |
58 |
65 |
|---|
| Detail Catalog DATA |
During the data acquisition |
PDF |
|---|
| Available shapes |
•pressing
•saw cut center-less
groundcylindrical blanks
•polished ball
•cut blanks
•FG |
•pressing
•saw cut center-less
groundcylindrical blanks
•polished ball
•cut blanks
•FG |
|---|
Please note that the physical properties may change, since they are data obtained during development.
Please consult us about available size and tolerance.
