Optical Alignment LAS-BT Bench-Top Lens Alignment & Inspection System

The LAS-BT™ is a compact (Bench-Top), non-contact lens alignment and inspection system designed for optimizing lens centration and tilt in multi-element lens assemblies. OATi's core measurement technology is based on focused laser reflection, with sources that are available over a broad range of wavelengths from visible (VIS) to Long-Wave IR (LWIR).  Our CalcuLens™ software permits fast switching between wavelengths and power optimization, resulting in superior imaging with sub-micron measurement precision.

SYSTEM CAPABILITIES:

• Assembly diameters: < 180 mm
• Assembly depths: < 380 mm
• Sample weight: < 57 kg
• Centration Accuracy: 0.2-0.5 micron
• Tilt Accuracy: 0.5-1.0 arcsec
• Runout Precision: < 50 nm

SIZE/WEIGHT/POWER/REQUIREMENTS:​

• System Dimensions: 460 x 510 x 1150 mm
• System Weight: 80 kg
• Bearing Diameter: 100 mm
• Rotary Stage Diameter: 150 mm
• Vertical Stage Travel: 633 mm
• Power Requirements: 110-220V AC, 50-60 Hz, 1-phase, 1-amp (220V)/2-amps (110V)
• Compressed Air Requirements: 60 PSI (4 bars), 4 CFM flow

OTHER ADD-ONS:

• Contact TIR Probe with software interface to CalcuLens™
• Non-contact TIR Probe with software interface to CalcuLens™
• Objectives: nominal working distance of 40 mm, 90 mm (standard), and 150 mm; (broad-band versions also available with extended transmission from 400 nm to 12000 nm)
• Table/Stand: standalone, moveable platform with passive vibration isolation
• Glue dispensing and UV curing stations
• VRM: Vertex/ROC Module for controlling surface airgaps within 2.5 microns
• RAM: Reticle Alignment Module to align reticles, apertures, and detectors

APPLICATIONS:

• Cementing of doublets & triplets
• Centering & bonding of multi-lens assemblies
• Alignment & Inspection of multi-lens assemblies
• Measurement of lens vertex height and airgaps
• Measurement of lens Radius of Curvature
• Measurement of lens/assembly beam deviation
• TIR profiling of rotationally symmetric housings and cells

WAVELENGTH OPTIONS:

• LAS-BT™ can accommodate up to 2 different spectral bands with up to 4 wavelengths​
• VIS: 460 nm, 520 nm, or 660 nm
• NIR: 840 nm or 930 nm
• SWIR: 1060 nm, 1300 nm, or 1550 nm
• MWIR: 4050 nm
• LWIR: 9500 nm

OTHER ADD-ONS:

• SPM: Surface Profiling Module for 3D optical surface profiling
• IAM Image Analysis Module for on-axis MTF, EFL, BFL, FFL measurement
• ATM: Aspheric Tilt Module to measure & optimize tilt of aspheric lenses
• DMI-200: Distance Measuring Interferometer for center thickness and airgap measurement of tall lens assemblies (up to 200 mm assembly depths)
• LensHandler™ kit for lens edge painting, lens cleaning and inspection
• ROTOwand™ for vacuum lens pick-up & handling