The Agilent/Keysight 10769A is a high-precision turning mirror designed for laser beam deflection in interferometer-based measurement systems. This hard-dielectric coated optic enables accurate displacement measurements across industrial and laboratory environments by routing laser beams to measurement points that would otherwise be inaccessible. The 10769A serves as a key component in machine tool calibration and complex measurement geometries where precise beam steering is critical.
Technical Specifications
• Clear Aperture: Central oval 25 mm × 45 mm (1.0 in × 1.8 in)
• Flatness: 1/10 wavelength at 633 nm
• Reflectance: ≥ 90% across 0 to 60° incidence angle at 633 nm (s and p polarizations)
• Coating Material: Hard dielectric
– Key Features
The mirror’s 1/10 wavelength flatness at 633 nm ensures minimal wavefront distortion in precision measurement applications. High reflectance across a wide incidence angle range (0 to 60°) accommodates diverse beam routing geometries without significant intensity loss. The hard dielectric coating provides durability in both laboratory and industrial settings.
– Typical Applications
• Slant Bed Lathe Calibration: Deflects laser beams upward from the laser head through the interferometer and along the lathe’s cross slide
• Diagonal Measurements: Simplifies diagonal measurement configurations on machines with moving beds
• Restricted Beam Access: Creates beam paths to interferometer positions blocked by table movement constraints, such as in milling machines with single-axis table travel
– Compatibility & Integration
The 10769A functions as a core optical element within the 10768A Diagonal Measurement kit and integrates with Keysight laser calibration platforms including the Keysight 5530 Laser Calibration system. Its modular design allows configuration with appropriate laser heads and system electronics to support precision positioning and calibration workflows.
