OPTIKOS Modulation Transfer Function Measurement Instrument (MTF, USA) LensCheck VIS
1. LensCheck: Primarily measures relatively small lenses. Applicable measurements: modulation transfer function (MTF), on/off axis; depth of focus (Through-Focus MTF); effective focal length and aperture (EFL and F-number); back focal length (BFL); astigmatism; field curvature; optical distortion; chief ray angle; encircled and ensquared energy; stray light (VGI, GSF), visible light, optional; transmission, visible light, optional; optical-axis offset/concentricity (Rotary Lens Mount/Boresighting Test), optional; relative illumination measurement, optional; thermal drift of lens performance parameters (Thermal Module), optional; axial chromatic aberration, visible light, optional, requiring a reflective collimator and an apochromatic objective; lateral chromatic aberration, visible light, optional, requiring a reflective collimator and an apochromatic objective.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimensions [Shared row in the system specification table] | H355mm；W762mm；L1219mm |
| Environmental Requirements [Shared row in the system specification table] | Best performance in a dark room |
| Refractive collimator effective focal length [Shorter effective focal length can be customized; shared system-specification row] | 355 millimeters |
| Refractive collimator clear aperture [Shared row in the system specification table] | 50 millimeters |
| Z-axis travel range [Linear-motor control] | 25 millimeters |
| Z-axis resolution [Linear-motor control] | 0.1 micrometers |
| X-axis travel range [Linear-motor control] | 25 millimeters |
| X-axis resolution [Glass optical encoder; linear-motor control] | 0.05 micrometers |
| Y-axis travel range [Manual control] | 12.5 millimeters |
| Optical lens platform off-axis rotation angle [Motor control] | ±105 ° |
| Optical lens platform resolution [Glass optical encoder] | 0.0001 degrees |
| Optical rail length [Self-centering optical lens mount] | 0.5 meters |
| Entrance pupil diameter of the lens under test | ≤50 millimeters |
| Image format size of the lens under test [Image-format diagonal] | ≤25 millimeters |
| Light-source module - video output | 14 bits |
| Focal length of the lens under test [Requires a suitable image-analyzer objective; original table does not state ≤] | 100 millimeters |
| F-number of the lens under test [Requires a suitable image-analyzer objective; off-axis applicability for large-aperture, nontelecentric lenses depends on whether the image distribution falls within the acceptance range of the image-analyzer objective] | f/20–f/1 |
| Maximum measurable spatial frequency [Standards] | 500 lp/mm |
| Maximum measurable spatial frequency [Custom] | Can be customized to reach 1000 |
| Power Supply Requirements | 100~240VAC 60/50Hz; computer 8/5A, display 2/0.6A |
| Light-source module | Sony EXview HAD CCD II |
| Light-source module - pixel format | 2736 Pixels × 2192 Pixels |
| Light-source module - calibrated achromatic objective | 40x0.65NA |
| Finite-conjugate measuring instrument - Z-axis travel range [VIS option; can be used independently] | 1000 millimeters |
| Finite-conjugate measuring instrument - Z-axis resolution [VIS option; manual Z-axis control] | 0.01 millimeters |
| Finite-conjugate measuring instrument - X-axis travel range [VIS option; linear-motor X-axis control] | 500 millimeters |
| Finite-conjugate measuring instrument - X-axis resolution [VIS option; original unit is millimeters] | 0.1 millimeters |
| Finite-conjugate measuring instrument - dimensions [VIS option] | 134.6 centimeters × 76.2 centimeters |
| Finite-conjugate measuring instrument - weight [VIS option] | Approximately 36.4 |
| Adjustable-conjugate measuring instrument - off-axis rotation angle [VIS option] | ±110 degrees |
| Adjustable-conjugate measuring instrument - measured object distance [VIS option; negative object distance is used for virtual-image measurements such as virtual reality; original range retained in full] | -1 m to infinity and to +1.2 m real-object distance |
Datasheet
Supplier Information
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