AGV-HPO High-Accuracy Laser Scan Heads

Description

Key Features

• Available in 10 mm, 14 mm, 20 mm & 30 mm input apertures
• Standard high-performance reflective coatings range from UV (<300 nm) to CO2  (>10,600 nm)
• Digital position resolution of >24 bits
• Thermally stable open-housing design with optional closed circuit water motor cooling & gas mirror cooling
• Dual digital encoder feedback eliminates velocity error & enables single-digit, micron-level accuracy throughout scanner Field of View (FOV)

Key Applications

The AGV-HPO is ideal for all types of 2D laser scanning applications where precision and throughput are critical to quality, including:

• Glass cutting
• Via drilling
• Surface texturing
• Micromachining

Design Choices

The AGV-HPO is available with 10, 14, 20 and 30 mm input apertures with right- or left-side beam entry. It can be equipped with an F-Theta or telecentric lens directly from Aerotech. Alternatively, users can acquire the focusing optic directly from an outside supplier and pair it with an Aerotech-supplied spacer ring (to ensure back reflections through the optic do not damage scanner mirrors). Mirror coatings for a wide range of UV, visible, IR and CO2 wavelengths are supported. Coatings optimized for ultra-fast lasers are also available. 

Powerful Controls Enable Real-Time Process Visibility

Powered by our Automation1 PC-based motion controller and driven by linear amplifiers, the AGV-HPO can execute motion at trajectory rates up to 200 kHz. The location of the AGV-HPO’s mirrors can be captured and analyzed in real time. With direct access to the scanner positions, you won’t need to program delay parameters to compensate for lag and tracking errors in the servo system. The process can be optimized prior to marking the part, saving time and reducing material waste. You can also control the laser’s state based on in-position and velocity criteria, further reducing programming complexity.

Advanced Programming Features

The AGV-HPO uses all the advanced motion and position synchronized output (PSO) capabilities developed for our traditional servo-based laser processing applications. Contouring functions like acceleration limiting automatically reduce speeds in tight corners or small radii to minimize overshoot. With PSO, the laser can be triggered based on the mirror’s position feedback, ensuring consistent spot overlap as the scanner changes speed. Infinite Field of View (IFOV) seamlessly combines servo and scanner motion to extend the scanner’s marking capability across the entire travel of the servo stages, eliminating stitching errors that can occur in a more traditional move-expose-repeat process.