MTF-Measurement for endoscopes - OEG

MTF-Measurement for endoscopes
Universal setup for measurement of
MTF (Modulation Transfer Function) of endoscopes
Pic. above: Example for setup for measurement of MTF of endoscopes
Pic. down: Live-image of the MTF-curve and values for freely selectable MTF-frequencies
Pic: Graphical display of the MTF for
different image field points
Pic´s: Real time MTF, -ESF und -LSF
OEG GmbH, Wildbahn 8i, 16236 Frankfurt (Oder), Tel.: +49 335 5213894, Fax: +49 335 5213896
info@oeggmbh.com www.oeggmbh.com

The setup is based on modular single components. The
components can be arranged according the endoscope
type (angle between light entry and eyepiece) on the
breadboard.
The components are:
- breadboard as ground plate
- adjustable light source with filters and testchart;
- measuring microscope with camera;
- x/yz- positioning system for measuring microscope;
- specimen holde;
- software MTF explorer for MTF measurement
All components are manually adjustable. The image field
position is measured by a mechanical gauge.
The measurement and evaluation is performed using the
software "MTF Explorer. "MTF Explorer" is an image
processing system with functions for measurement of MTF,
ESF and LSF.
The MTF can be measured from the live-camara image or
from saved images.
Object generator with light
source and test chart
Image Analyzer with microscopea and x/y/z positioning system. The image field
position is measured by a mechanical gauge
20 years experience in the field of MTF-measurement
Since the founding of the company in year 1991 OEG GmbH works in the field of measurement of
MTF and optical parameters. We supply a wide range of optics test equipment and are able to perform
many measuring services in our laboratories.
Many famous optics manufacturers belong to our customers.
OEG GmbH, Wildbahn 8i, 16236 Frankfurt (Oder), Tel.: +49 335 5213894, Fax: +49 335 5213896
info@oeggmbh.com www.oeggmbh.com