Complaint
Rod lens systems use special glass rods with optically finished ends, providing images with higher brightness, contrast and colour reproduction than conventional lenses.
Commonly, rigid endoscopes have a series of high-resolution optical glass rod lenses. The endoscopes can be forward viewing (0 degrees) or angled (10-120 degrees) to allow visualization out of the axis of the telescope and increase the FOV by rotating the instrument. The optical quality of lens-generated images of rigid endoscopes still surpasses that of the fiber-optic or digital images produced by flexible scopes.
| Material | N-BK7, UVFS, H-K50, |
| H-F4, H-BAK7, H-LAF10L, | |
| N-SK15, H-ZK21, H-F1, H-ZF4 | |
| Diameter | Ø0.6mm or customization |
| Type | Flat/Flat |
| Plano-Convex | |
| Plano-Concave | |
| Cemented | |
| Flatness | N<3, ΔN<0.5 for spherical surface |
| N λ/4~λ/8 for flat surface | |
| Centering | <5' |
| Surface Quality | 20/10~60/40 |
| Clear aperture | 90% |
| Coating | Uncoated, or customized |
Micro Rod Lenses are available with flat, plano-convex, plano-concave, cemented etc which applied in medical endoscopes
| Material | Length | Dia1 | Dia2 | Dia3 | Dia4 | Dia5 | Dia6 | Dia7 | Dia8 |
N-BK7, UVFS, H-K50, H-F4, H-BAK7, H-LAF10L, N-SK15, H-ZK21, H-F1, H-ZF4 | 11.4 | 2.1 | 2.0 | 1.9 | 1.8 | 1.7 | |||
| 14.7 | 2.1 | 2.0 | 1.9 | 1.8 | 1.7 | ||||
| 15 | 2.1 | 2.0 | 1.9 | 1.8 | 1.7 | ||||
| 17.6 | 2.2 | 2.1 | 2.0 | 1.9 | 1.8 | ||||
| 19.4 | 2.2 | 2.1 | 2.0 | 1.9 | 1.8 | ||||
| 20.2 | 2.2 | 2.1 | 2.0 | 1.9 | 1.8 | ||||
| 22.9 | 2.8 | 2.7 | 2.77 | 2.2 | 2.1 | 2.0 | 1.9 | 1.8 | |
| 23 | 2.8 | 2.7 | 2.77 | 2.2 | 2.1 | 2.0 | 1.9 | 1.8 | |
| 24 | 2.8 | 2.7 | 2.77 | 2.2 | 2.1 | 2.0 | 1.9 | 1.8 | |
| 29 | 3.5 | 3.2 | 2.77 | 3.0 | 2.8 | 2.7 | |||
| 29.5 | 3.5 | 3.2 | 3.0 | 2.8 | 2.7 | ||||
| 29.8 | 3.5 | 3.2 | 3.0 | 2.8 | 2.7 | ||||
| 46 | 6.6 | 6.5 | 6.0 | 5.5 |
