We are pleased to announce S-NBM52 optical glass for polished lenses, effective for chromatic aberration correction.
01.31.2024
S-NBM52 is an optical glass for polished lenses with higher dispersion while maintaining the same anomalous dispersion as S-NBM51, which has been used for a long time.
It is expected to be effective in correcting chromatic aberration of optical lenses, thereby improving the performance of customers’ products. We propose S-NBM52 as an optical component that can be used for general-purpose applications such as interchangeable lenses for various cameras, projectors, and machine vision devices.
(Features)
1. S-NBM51 is highly dispersed in the nearby low refractive index region while maintaining Δθg,F
2. Lower specific gravity compared to S-NBM51
d = 2.86
| S-NBM52
(New Product) |
||
| Eco Optical Glass | 〇 | |
| Refractive Index nd | 1.62205 | |
| Abbe Number νd | 41.08 | |
| Partial dispersion θg,F | 0.5690 | |
| anomalous dispersion Δθg,F | -0.0060 | |
| CTE α
(10-7 K-1) |
-30～+70℃ | 74 |
| +100～+300℃ | 87 | |
| Transformation Point Tg Tg(℃) | 584 | |
| Yield Point At At(℃) | 645 | |
| Coloring | λ80 | 355 |
| λ5 | 320 | |
| Chemical Resistance | RW(P) | 1 |
| RA(P) | 1 | |
| W(S) | 3 | |
| SR | 1.0 | |
| PR | 1.0 | |
| Specific Gravity | 2.86 | |
| Knoop Hardness Hk | 540〔5〕 | |
| Abrasion Aa | 120 | |
| Detail Catalog DATA | ||
(Please consult us about product form of supply, available shapes, sizes and tolerances.)