S-TIH57 which can supply low cost in the region of higher refractive index than S-TIH53
04.18.2017
S-TIH57 is an optical glass recommended for polished lens blank applications and can give low cost in the region of higher refractive index than S-TIH53 which is used in a wide variety of applications. We are pleased to introduce S-TIH57 which can contribute cost reduction and high-performance to the lenses in the field of CCTV, FA / Machine Vision, Automotive Cameras and so on.
| S-TIH57 (New Product) |
S-TIH53 (Current Product) |
||
| Eco Optical Glass | ○ | ○ | |
| Refractive Index nd | 1.96300 | 1.84666 | |
| Abbe Number νd | 24.11 | 23.78 | |
| CTE α (10-7/℃) |
-30～70℃ | 75 | 88 |
| +100～300℃ | 91 | 104 | |
| Transformation Point Tg(°C) | 672 | 624 | |
| Yield Point At(°C) | 707 | 658 | |
| Coloring | λ70 | 450 | 420 |
| λ5 | 375 | 370 | |
| Chemical Resistance | RW(P) | 1 | 1 |
| RA(P) | 1 | 1 | |
| W(S) | 1 | 1 | |
| SR | 3.0 | 1.0 | |
| PR | 1.0 | 1.0 | |
| Specific Gravity | 4.20 | 3.54 | |
| Knoop Hardness Hk | 630〔6〕 | 520〔5〕 | |
| Abrasion Aa | 97 | 170 | |
| Detail Catalog DATA | |||
| Available shapes |
•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.