LAS-BT NexGen

Lens Alignment and Inspection System

The LAS-BT-VIS™ is a compact (Bench-Top), non-contact lens alignment and inspection system designed from the ground-up for precision lens centration and tilt measurements of single element, doublet, triplet and multi-element lens assemblies with radius ranging from +/- 1 mm to infinity (plano) and diameters from below 1 mm to 200 mm, including spherical, aspheric, cylindrical and parabolic surfaces. All this can be done with a single objective lens allowing for fast and easy measurement.

Overview

The core measurement technology is based on focused laser reflection (see LAS Technology). A single-mode optical fiber couples the external Laser Generation Module (LGM) to the on-tool vertically-mounted Optical Module (OM) which houses the focusing optics and large-format array camera(s). Software control of the LGM permits fast switching of wavelengths and optimization of the beam power, resulting in superior imaging of the reflected beam with sub-micron measurement precision. The design of the LGM permits up to two of three visible wavelengths (blue, green & red).
The user friendly CalcuLens™ Assembly software is standard to all LAS™ models and enables computer automated measurement of the alignment errors of a single lens for rapid bottom-up assembly. Extending the measurement to multi-element lens assemblies requires the optional CalcuLens™ Inspection software thereby adding powerful inspection capability for the quality assurance of finished lens assemblies. The recent addition of CalcuSurf-1D™ USB lever probe and profiling software to the LAS™ family of products significantly aids the ease and precision of initial setup, resulting in improved utilization during frequent lens assembly changes.

LAS-BT-VIS NexGen

Applications

  • Centering of single lenses
  • Cementing lens doublets & triplets
  • Centering & bonding of multi-element lens assemblies
  • Alignment Inspection of multi-lens assemblies (requires CalcuLens™ Inspection)
  • Measurement of lens vertex height and air gaps (requires CalcuLens™ Vertex)
  • Measurement of lens Radius of Curvature (requires CalcuLens™ ROC)
  • Measurement of lens and assembly beam deviation (requires CalcuLens™ BD)
  • TIR profiling of rotationally symmetric housings and cells (requires CalcuSurf-1D™)

System Characteristics

  • Compact, bench-top unit
  • Measurement of smaller diameter lenses and assemblies (ø ≤ 200 mm)
  • High-precision (< 50 nm runout) motorized & encoded rotary air bearing with integrated centration/tilt stage and vacuum through center
  • Precision, motorized & encoded vertical linear stage (travel ≤ 633 mm)
  • High-power green (520 nm) laser, fiber coupled to Optical Module
  • 90 mm Working Distance (WD) objective lens with quick-attached thread for accessories
  • User-friendly CalcuLens™ Assembly software and data reporting functions conforming to ISO standards
  • Sub-micron centration accuracy

Available Options

  • Red (660 nm) or Blue (460 nm) laser
  • 20 mm, 30 mm, 40 mm, 150 mm & 200 mm Working Distance objective lens adapters
  • Heavy-duty passive vibration isolation stand & table
  • Glue dispensing and UV cure stations
  • Reticle alignment accessory
  • CalcuLens™ Inspection software for measuring alignment of multi-lens assemblies
  • CalcuLens™ Vertex software for measurement of lens vertex height of tall lens assemblies and lens thickness and air space of shorter assemblies
  • CalcuLens™ ROC software for measurement of lens radius of curvature
  • CalcuLens™ BD software for measurement of lens boresight/beam deviation
  • CalcuSurf-1D™ precision USB lever probe with digital gage and real-time profiling software 
  • DMI-200 Low-coherence Distance Measurement Interferometer for center thickness and air space measurement of tall lens assemblies
  • 3D-SPM Surface Profiling Module for LAS
  • Non-contact TIR Probe with software interface to CalcuLens™
  • Image Analysis Module for LAS-BT: IAM for on-axis MTF, EFL, BFL, FFL measurement
  • Aspheric Tilt Module for LAS-BT: ATM to measure tilt of aspheric lenses up to 100 mm diameter
  • LensHandler™ kit for lens edge painting, lens cleaning and inspection
  • ROTOwand™ for vacuum lens pick-up & handling

LAS-BT-VIS-IR NexGen

Applications

  • Centering of single lenses
  • Cementing lens doublets & triplets
  • Centering & bonding of multi-element lens assemblies
  • Alignment Inspection of multi-lens assemblies (requires CalcuLens™ Inspection)
  • Measurement of lens vertex height and air gaps (requires CalcuLens™ Vertex)
  • Measurement of lens Radius of Curvature (requires CalcuLens™ ROC)
  • Measurement of lens and assembly beam deviation (requires CalcuLens™ BD)
  • TIR profiling of rotationally symmetric housings and cells (requires CalcuSurf-1D™)

System Characteristics

  • Compact, bench-top unit
  • Measurement of smaller diameter lenses and assemblies (ø ≤ 200 mm)
  • High-precision (< 50 nm runout) motorized & encoded rotary air bearing with integrated centration/tilt stage and vacuum through center
  • Precision, motorized & encoded vertical linear stage (travel ≤ 633 mm)
  • High-power green (520 nm) laser, fiber coupled to Optical Module
  • 90 mm Working Distance (WD) objective lens with quick-attached thread for accessories
  • User-friendly CalcuLens™ Assembly software and data reporting functions conforming to ISO standards
  • Sub-micron centration accuracy in VIS and IR

Available Options

  • Red (660 nm) or Blue (460 nm) laser
  • 20 mm, 30 mm, 40 mm, 150 mm & 200 mm Working Distance objective lens adapters
  • Heavy-duty passive vibration isolation stand & table
  • Glue dispensing and UV cure stations
  • Reticle alignment accessory
  • CalcuLens™ Inspection software for measuring alignment of multi-lens assemblies
  • CalcuLens™ Vertex software for measurement of lens vertex height of tall lens assemblies and lens thickness and air space of shorter assemblies
  • CalcuLens™ ROC software for measurement of lens radius of curvature
  • CalcuLens™ BD software for measurement of lens boresight/beam deviation
  • CalcuSurf-1D™ precision USB lever probe with digital gage and real-time profiling software 
  • DMI-200 Low-coherence Distance Measurement Interferometer for center thickness and air space measurement of tall lens assemblies
  • 3D-SPM Surface Profiling Module for LAS
  • Non-contact TIR Probe with software interface to CalcuLens™
  • Image Analysis Module for LAS-BT: IAM for on-axis MTF, EFL, BFL, FFL measurement
  • Aspheric Tilt Module for LAS-BT: ATM to measure tilt of aspheric lenses up to 100 mm diameter
  • LensHandler™ kit for lens edge painting, lens cleaning and inspection
  • ROTOwand™ for vacuum lens pick-up & handling

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