China 6.55mm Dia Rod Lenses in Stock for Endoscope, Find details about China Endoscope Lenses, Rod Lens from 6.55mm Dia Rod Lenses in Stock for Endoscope
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 |