Introducing Ring fiber light guide
| Bundle Diameter (mm) | Inner diameter (mm) | Type | Length(mm) |
| 6 | 18 | Horizontal type / Vertical type | 1000/1500/2000/3000 |
| 6 | 25 | Horizontal type / Vertical type | 1000/1500/2000/3000 |
| 6 | 32 | Horizontal type / Vertical type | 1000/1500/2000/3000 |
| 8 | 45 | Horizontal type / Vertical type |