Application Examples: Camera Sensor Alignment and Test

AEi developed camera module assembly, alignment and test stations for multiple camera module programs for a European manufacturer of high-end electronics systems and subsystems for the automotive market.

Platforms & Products:

• Camera Module Align, Assembly and Test (CMAT)
• FlexAuto

Processes & Tools:

• Active Alignment
• Machine Vision Guided Automation
• Epoxy Dispense and Cure

Application Requirements:

• Extensive design for manufacturing (DFM) collaboration
• Failure mode event analysis (FMEA) to minimize program risk
• Adhesive evaluation and experiments to optimize process
• 5 Degrees of Freedom (DOF) active alignment for improved product performance
• Configurable and customizable align and test targets
• Adaptable to different camera sensors
• Automated epoxy dispense
• Configurable UV cure wands for optimal epoxy cure

The application requirements include 5 degree of freedom (5 DOF) alignment of lens assemblies to image sensors in digital cameras to achieve required alignment tolerances while keeping manufacturing costs down. Environmental conditions in automotive applications -- including a wide range of service temperatures and high shock and vibration conditions -- require a very reliable and uniform alignment and assembly process. AEi’s flexible automation systems enabled the customer to develop and produce compact, high image quality cameras within very short development and deployment cycles.