Fibre Bundle Imaging Lens Application Note
Author: Yingli – R&D Director
A fibre optic bundle is defined as any fibre optic assembly that contains more than one fibre optic in a single cable.
While a single fibre cannot transmit an image, a large fibre bundle can, as each individual fibre represents one pixel of the image. This is made possible due to the minimal coupling between the fibres in the bundle. Being inherently flexible, fibre bundles are primarily used for imaging applications in remote or confined spaces where standard image sensors cannot be utilized.
Operation Principle
This assembly consists of an SMA 905 compatible housing which contains the 4mm diameter objective lenses. It can capture the image for objectives larger than 10 mm away to a 1.5 mm diameter area, with FOV up to 40 degrees. It has to work during noon daylight or would require extra lighting.
| Material | Optical glass |
| FFOV | 35 degree |
| Spectral Range | 400 nm to 900 nm |
| NA – Front Objective | 0.015 |
| NA – Rear Optical System | 0.16 |
| Lens Diameter | 4 mm |
| Imaging Size | 1.5 mm Diameter |
| Observation Range | > 10 mm |
| Fibre Bundle Connector | SMA 905 |
Applications
The small size of the Fibre Bundle Imaging Lens assembly allows for its use in a wide range of applications including:
- Medical diagnosis
- Agricultural imaging
- Industrial and Automotive inspection
Since 2002, Wavelength Opto-Electronic has built an innovative photonics engineering capability for precision optics used in measurement and inspection systems. The Fibre Bundle Imaging Lens introduced here is to meet the latest development in remote inspection technology. Our design is for high-resolution operation at low light levels. The Imaging Lens also offers superior image quality with greater observation range and performance. The wavelength range from 400 nm to 900 nm makes it suitable for many applications.