LAS-XUP

Ultra Precision Lens Alignment System

The LAS-XUP-VIS™ is a meter-sized, non-contact lens alignment and inspection station 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 1000 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-XUP-VIS

Applications

  • Centering of single large diameter, long radius lenses & mirrors
  • Cementing large diameter doublets & triplets
  • Centering & bonding of large diameter multi-element lens & mirror assemblies
  • Alignment Inspection of large-diameter 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

  • Cored granite column and table resulting in stiff metrology loop with low thermal sensitivity

  • State-of-the-art Optical Module design optimized for exceptionally high tilt/centration sensitivity at very long radius of curvature (ROC = 1000 mm to infinity)

  • Measurement of larger diameter lenses and assemblies (300 mm ≤ ø ≤ 600 mm)

  • High-precision (< 50 nm runout) ø600 mm to ø800 mm encoded rotary air bearing with integrated centration/tilt stage and vacuum through center

  • Precision, motorized & encoded vertical linear stage (travel 2000 mm) with nanometer interferometric mapping for micron-level position accuracy

  • High-power green (520 nm) laser, fiber coupled to Optical Module

  • Large-format, small-pixel CMOS camera provides highest sensitivity to small TIR

  • 90 mm Working Distance (WD) objective lens with quick-attached thread for accessories

  • Custom objective for measuring alignment of mirror with holes (i.e., Cassegrain) 

  • User-friendly CalcuLens™ Assembly software and data reporting functions conforming to ISO standards

  • 0.1 µm centration accuracy

Available Options

  • Red (660 nm) or Blue (460 nm) laser

  • Extended vertical focusing travel to 3000 mm

  • High-precision (< 50 nm runout) ø800 mm encoded rotary air bearing with integrated centration/tilt stage and vacuum through center

  • Add motorized direct drive to manual rotary air bearing

  • Extended worktable diameters Ø800 mm – Ø1000 mm 

  • 20 mm, 30 mm, 40 mm, 150 mm & 200 mm Working Distance objective lens adapters

  • 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

  • ROTOwand for vacuum lens pick-up & handling

LAS-XUP-VIS-IR

Applications

  • 600mm to 1000mm rotary work surface, 2000mm vertical stage
  • State-of-the-art Optical Module design optimized for exceptionally high tilt/centration sensitivity at very long radius of curvature (ROC = 1000mm to infinity)
  • Cored granite column and table result in stiff metrology loop with low thermal sensitivity
  • Highest quality rotary air bearing with less than 50 nm run-out / wobble
  • Ultra-high-resolution optical encoders with nanometer interferometric mapping of vertical axis for micron-level position accuracy
  • Large-format, small pixel camera provides highest sensitivity to small TIR at large ROC
  • Custom objective for measuring alignment of mirrors with holes

System Characteristics

  • SWIR (1550nm), MWIR (4.05µm), LWIR (9.15µm)Red (660nm) and Green (520nm) pigtailed diode lasers with single mode optical fiber transport from external Light Generation Module (LGM) to Optical Module (OM) on vertical stage
  • Latest-generation aspheric focusing and re-imaging optics
  • State-of-the-art 12 megapixel ultra-small-pixel CMOS camera for best sampling of image
  • 2000mm vertical linear focusing movement with multi-speed stepper motor and micron accuracy encoders (error mapped)
  • Ø600mm rotary air-bearing with integrated Ø600mm x/y/tip/tilt table
  • Ø800mm to Ø1000mm top plate for extra-large optics/housings
  • CalcuLens™ Assembly software for measuring alignment errors of single lens, cemented doublets & triplets
  • Centration accuracy: 0.2µm centration @ ROC ≤ 10m
  • Tilt accuracy: 0.5 arcsec @ ROC ≥ 10m
  • Maximum axial load capacity ~ 2000lb (907Kg)
  • System Weight ~ 6200lb (2812Kg)
  • System dimensions 79”x59”x130” (2000x1500x3300mm)

Available Options

  • CalcuLens™ Inspection software for measuring in-stack (embedded) lens alignmentvalues
  • CalcuSurf2D™ real-time TIR dial and profiling software. Can be interfaced with 0.1µm resolution contact lever probe or new non-contact chromatic confocal distance measurement sensor.
  • LAS-Vertex/ROCTM add-on software & hardware for the measurement of lens center thickness and air gaps at +/- 2.5µm accuracy (20mm to 50mm measurement range)
  • LAS-DMITM low-coherence SWIR interferometer for the measurement of lens center thickness and air gaps at +/- 1µm accuracy (200mm to 600mm measurement range)

LAS-XUP-VIS-2xIR

Applications

  • The Most ACCURATE and POWERFUL IR Alignment System Available
  • 600mm to 1000mm rotary work surface, 2000mm vertical stage
  • State-of-the-art Optical Module design optimized for exceptionally high tilt/centration sensitivity at very long radius of curvature (ROC = 1000mm to infinity)
  • Ultra-high-resolution optical encoders with nanometer interferometric mapping of vertical axis for micron-level position accuracy
  • Custom objective for measuring alignment of mirrors with holes
  • Alignment and Inspection of Larger IR Lens Assemblies with Sub-Micron Accuracy
  • Highest quality rotary air bearing with less than 50 nm run-out / wobble
  • Quantum Cascade Laser with Single Mode Optical Fiber Transport
  • Lens Thickness and Air Gap Measurement
  • Red / Green / MWIR / LWIR Lasers
  • Multi Lens Capable
  • Optional Non-Contact TIR Sensor

System Characteristics

  • SWIR (1.55µm), MWIR (4.05µm) or LWIR (9.50µm) Red (660nm) and Green (520nm) laser-reflection based Optical Module 
  • Latest-generation aspheric focusing and re-imaging optics
  • State-of-the-art 12 megapixel ultra-small-pixel CMOS camera for best sampling of image
  • 2000mm vertical linear focusing movement with multi-speed stepper motor and micron accuracy encoders (error mapped)
  • Ø600mm rotary air-bearing with integrated Ø600mm x/y/tip/tilt table
  • Ø800mm to Ø1000mm top plate for extra-large optics/housings
  • CalcuLens™ Assembly software for measuring alignment errors of single lens, cemented doublets & triplets
  • Centration accuracy: 0.2µm centration @ ROC ≤ 10m
  • Tilt accuracy: 0.5 arcsec @ ROC ≥ 10m
  • Maximum axial load capacity ~ 2000lb (907 Kg)
  • System Weight ~ 6200lb (2812 Kg)
  • System dimensions 79”x59”x130” (2000 x 1500 x 3300mm)

Available Options

  • CalcuLens™ Inspection software for measuring in-stack (embedded) lens alignmentvalues
  • CalcuSurf2D™ real-time TIR dial and profiling software. Can be interfaced with 0.1µm resolution contact lever probe or new non-contact chromatic confocal distance measurement sensor.
  • LAS-Vertex/ROCTM add-on software & hardware for the measurement of lens center thickness and air gaps at +/- 2.5µm accuracy (20mm to 50mm measurement range)
  • LAS-DMITM low-coherence SWIR interferometer for the measurement of lens center thickness and air gaps at +/- 1µm accuracy (200mm to 600mm measurement range)

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