General Optics ensures coating and optical performance with a full suite of metrology systems, including ZYGO interferometers, TalySurf profilers, autocollimators, and CMMs. These tools allow precise measurement of surface form, roughness, coating thickness, alignment, and spectral performance, meeting ISO and MIL-STD standards.
Optical Metrology Capabilities
General Optics provides comprehensive metrology capabilities to ensure coating and optical performance across all geometries:
- ZYGO Interferometers (4”, 15”) – Flat, spherical, DOE, and freeform optics measurement
- FTIR Spectrometer (PerkinElmer Lambda 1050) – Transmission and reflection across a broad spectral range
- Autocollimator – Precise angular measurement
- Alignment Telescope – Verification of optical axis alignment
- Tool Microscope – Scratch-Dig surface defect inspection
- TalySurf PGI Optics – Nanometer-scale surface roughness and profile measurement
- Centering Test Station – Lens centering accuracy evaluation
- Spectral Photometer – High-precision optical transmittance/reflectance analysis
- Surface Roughness Tester – Ra/Rq surface quality verification
- CMM (Coordinate Measuring Machine) – Dimensional verification up to Ø 1850 mm
System-Level Optical Performance Tests
General Optics conducts in-house system-level tests to ensure the performance and reliability
of assembled optical systems:
- Modulation Transfer Function Measurement – Evaluation of imaging resolution and contrast
- Mechanical Alignment & Optical Axis Adjustment – Verification of precise optical system
alignment - Telecentricity Measurement – Inspection of image distortion and telecentric performance
- Wavefront Distortion Verification – Assessment of wavefront accuracy for high-precision
optics - White Light Interferometry – Surface and form measurement using broadband interferometry
- Mechanical Profiling – Dimensional and geometric profile testing
- Laser Beam Profiling – Analysis of laser beam shape, quality, and stability
Metrology Equipment LineupTests
- ZYGO Interferometers (4”, 15”) – Surface form and flatness measurement
- Autocollimator – Angular and alignment inspection
- Eccentricity Tester – Lens centering and decenter measurement
- Precision Thickness Gauge – High-accuracy thickness measurement
- Tool Microscope – Scratch-Dig and defect inspection
- ZYGO CP300 (Surface Roughness Tester) – Surface roughness and quality analysis
- TalySurf PGI Optics (Aspheric Profiler) – Aspheric and freeform surface measurement
- PerkinElmer Spectrum Two (FT-IR Spectrometer) – Infrared transmission/reflection measurement
- 3D Coordinate Measuring Machine (CMM) – Dimensional measurement of large optics
- PerkinElmer Lambda 1050 (UV/Vis/NIR Spectrophotometer) – Transmission/reflection spectral analysis
