Shack-Hartmann wavefront sensors

OMI: Test in Single Pass

OMI Shack-Hatmann wavefront sensor models

Metrology in transmission (single pass) of lasers and optical elements
Large wavelength range (DUV, Vis, SWIR, MWIR and LWIR)
High repeatability (λ/1000) and accuracy (λ/60)
Compact and lightweight
SenSoft software for Shack-Hartmann image acquisition and analysis
Wide range of accessories for testing different beam sizes
Calibration done by user in-situ for high accuracy

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Optino-mu: Pocket size, Single & Double Pass

It is the world’ smallest Shack-Hartmann wavefront sensor with capability of single and double pass setup and as accurate as an interferometer
Pocket sized: dimensions 70 x 25 x 30 mm³ (L x W x H) and only 200 gr weight
In-built light source for calibration
SenSoft software for Shack-Hartmann image acquisition and analysis

iOptino : Dual channel, Single & Double Pass

Dual channel Shack-Hartmann wavefront sensor
Shack-Hartmann channel with standard or large format camera in single and double pass
Imaging channel for direct image and alignment
In-built light source for calibration
Special model to minimize diffuse light
Superior software SenSoft for full control of the instrument: image acquisition and Shack-Hartmann analysis and profiling of direct image simultaneously

Laserino-mu: Dual Channel, Single Pass

Dual channel Shack-Hartmann wavefront sensor for testing lasers
Shack-Hartmann channel with standard or large format camera in single pass
Imaging channel for direct image and beam profiling
Superior software Sensoft for full control of the instrument: image acquisition and Shack-Hartmann analysis and profiling of direct image simultaneously
M²: no scanning system directly obtained from Shack-Hartmann analysis
MTF: no scanning system directly obtained from Shack-Hartmann analysis

Optino: Single & Double Pass

Optino is SpotOptics first Shack-Hartmann wavefront sensor for testing optical elements in single and double pass
It is a very versatile wavefront sensor. The illumination light source for double pass is part of Optino
Motorized version available for getting collimation at different wavelengths
Superior software SenSoft for full control of the instrument: image acquisition and Shack-Hartmann analysis
On-line continuous collimation and alignment check during motor movement or manual adjustment

Lentino & Opal: On-axis Motorized

Accurate motor for z-movement.
Accurate XY and tilt stages for easy centering of lenses.
In-built calibration units
In-built beam-expander.
Full control of instrument with SenSoft software.
Models available for test at different wavelengths.

5Star : Off-axis Multi Camera

Contour of wavefront of digital camera lens on-axis (center) and off-axis

Spot diagram of a digital camera lens on-axis (center) and off-axis

MTF of a digital camera lens on-axis (center) and off-axis

Off-axis testing in one single shot
Fast measurement on 5 or 9 off-axis points without mechanical scanning
Ideal for the production line
Active alignment of composite optical elements

Sfera & Stella: Off-axis Motorized

Test in transmission (single pass).
In-built calibration unit.
Accurate motors with encoders for scanning movements.
Full control of instrument with SenSoft software.
Macro available for defining positions in the field.
Automatic scanning following positions defined in macro

Contour: for contact lenses

Accurate and Fast Contact Lens Metrology for the Production Line
Test in wet and dry status
Measure Sphere, Cylinder, Prism power
Extremely compact (L=4.5 W=4.0 H= 11.5 cm) and lightweight (350 g)

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Puntino: Dual-channel, for astronomical telescopes

Puntino: optimize telescope performance with a powerful set of tools. Cover focal ratios from f/5 to f/18

SpotOptics developed the system for testing the Heads-Up Display (HUD) in the production line for a German company working in the automotive industry. SpotOptics wavefront sensor Omi and Shack-Hartmann analysis software SenSoft were used to get the quality of the system.

Head-up display test — Head-up display image projected on the windshield of a car

SpotOptics Omi mounted for testing a windshield — SpotOptics Omi mounted for testing head-up display + windshield system

Testing lenses with Optino: measure stress due to lens mounting

SpotOptics Shack-Hartmann wavefront sensor Optino and SenSoft software were used to test an ophthalmic lens held in a 3-point clamp.

Output results from Sensoft analysis are the table with the Zernike coefficients (at left in the figure below) and several graphs.

Sensoft Zernike output — Zernike coefficient from Shack-Hartmann analysis with Sensoft

Triangular Coma as result of stress due to mounting — Triangular Coma due to the 3-point clamp in wavefront map

3D wavefront of Triangular Coma — Triangular Coma due to the 3-point clamp in 3D of wavefront

Astronomical telescope test with Puntino: measure stress due to supports

SpotOptics wavefront sensor Puntino and SenSoft software were used for analyzing a 1.5m mirror telescope in 1996. Since the Telescope has an annular pupil, the Annular Zernike polynomials were implemented in SenSoft together with the Standard Zernike, Fringe Zernike and Seidel polynomials. After the calculation of the Annular Zernike aberration terms, the wavefront was reconstructed mathematical removing all of the Zernike terms (this is a feature of our software Sensoft): the resulting mirror surface map (left) clearly follows the mirror support map (right).