Application Examples: Video Borescope & Endoscope Active Lens Alignment
AEi used the CMAT I platform to perform a six axis active alignment of a sensor to lens for a video borescope.
Platforms & Products:
Application Requirements:
- Six axis active alignment of sensor to lens
- Vision guided insertion of sensor assembly into lens assembly
- Alignment algorithm used both near field and far field targets
- Automated adhesive dispense and UV cure
- Flexible fixturing and software
- Motorized near field target
- Consistent image quality
The application required a six-degree of freedom (6 DOF) active alignment of a sensor assembly to a lens assembly for video borescopes. Five- and six-degree of freedom active alignment enables customers to assemble cameras and lenses with superior quality of focus across an entire image plane. Uniformly high image quality is critical in medical and other demanding applications.
The existing alignment process was operator dependent and was time consuming and difficult to reliably repeat with each unit. AEi developed a modified CMAT I system to repeatedly align, attach, and test the sensor assembly to the lens assembly with high accuracy and speed. Due to a relatively tight fit between the sensor assembly and the lens assembly, AEi used two orthogonally mounted machine vision cameras and pattern recognition software to align and attach the sensor assembly into the lens assembly prior to AEi’s 6 DOF active alignment.