Precision Optomechanical Alignment
Accurate and repeatable laser line plane optical alignment relative to a custom mechanical reference.
Purpose
Precise machine vision and 3D scanning using laser line triangulation depend on tight control of the inspection beam’s spatial position relative to the imaging camera. To deliver laser modules that integrate seamlessly into a customer’s system, key geometric line-plane parameters – along with line uniformity and thickness – must be carefully controlled and maintained through alignment of optical components.
Our Approach
To achieve demanding optical alignment precision relative to a customer’s mechanical reference plane, Diode Laser Concepts developed a custom Precision Optomechanical Alignment platform for volume manufacturing. Each laser module is mechanically registered to the platform’s optical sensors through precision-machined features and a rigorous calibration process. By integrating custom hardware, software, and application-specific optical sensors, DLC ensures consistent, exacting optical performance from unit to unit.
Technology & Process
- High-tolerance mounting features integral to each module allowing accurate mating to manufacturing hardware (Plug-Play).
- Multiple optomechanical stages yield 9 total degrees of freedom for optical component alignment and control of all optical parameters.
- Optical sensors and custom GUI evaluates line thickness, power uniformity, and laser plane positional geometry in real-time relative to product performance pass/fail criteria.
- Line plane alignment: Roll ±0.05°, Pitch ±0.03°, Δ-Offset ±20µm, Yaw ±1.0°.
- In situ measurement of electrooptic and TTL functionality.
- Proprietary optical component attachment technology.
- Performance data sheets per unit and provided to the customer.
Applications
- Highly accurate optomechanical alignment.
- Machine vision, 3D scanning.
- Quality control.
- Robotics.
- Semiconductor processing.