The ThorLabs 590250-2448-31 is a large-format optical breadboard engineered for precision component mounting and vibration isolation in laboratory optical systems. This 48″ × 24″ × 2.4″ platform delivers exceptional flatness and rigidity through solid aluminum construction, supporting laser experiments, microscopy, alignment work, and complex multi-component optical setups.
Technical Specifications
• Model: 590250-2448-31
• Material: Non-magnetic, solid aluminum
• Dimensions: 48″ L × 24″ W × 2.4″ thick
• Surface Finish: Matte black anodized coating (minimally reflective)
• Flatness: ±0.006″ over 1 ft²
• Threaded Hole Pattern: 1/4″-20 tapped holes at 1″ centers
• Edge Setback: 0.5″ from all edges to first hole
• Mounting Holes: Four 1/4″ counterbored holes at corners (1″ inset); one additional counterbored mounting hole at board center for enhanced rigidity
– Key Features
• Through-threaded 1/4″-20 holes permit component mounting on both upper and lower surfaces
• Matte black anodized finish minimizes stray reflections critical to optical alignment
• Five-point mounting configuration (four corners plus center) prevents deflection across the 48″ length
• Non-magnetic aluminum construction suits experiments requiring optical and magnetic isolation
• Precision flatness specification ensures accurate component registration
• Corner counterbores facilitate stacking or attachment to standard optical table systems
– Typical Applications
• Laser beam path assembly and alignment
• Optical component integration and testing
• Microscopy apparatus mounting
• Multi-stage optical systems requiring stable mechanical platforms
• Research and development environments demanding dimensional stability
– Compatibility & Integration
This breadboard integrates with standard optical mounting systems and accessories. Corner and center counterbores enable attachment to feet, risers, or adjacent breadboards, supporting modular optical table configurations.












