Precise and fast autofocus measuring device for high-resolution high-speed pupillometry

Conference on Lasers and Electro-Optics, vol. 31, pp. AW3T.4

Abstract

We present a light-intense optical device for high-speed measurement of pupil size at 1000 fp/s with automatic focusing by software edge contrast measurement and focus tracking using a liquid lens within one second.

Authors 4

1. Mario Hesker corresponding Aachen Chair for Technology of Optical Systems TOS

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Chair for Technology of Optical Systems TOS, Steinbachstraße 15, 52074 Aachen

2. Cailing Fu Aachen Chair for Technology of Optical Systems TOS

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Chair for Technology of Optical Systems TOS, Steinbachstraße 15, 52074 Aachen

3. Jochen Stollenwerk Aachen Fraunhofer Institute for Laser Technology ILT Chair for Technology of Optical Systems TOS

   Fraunhofer Institute for Laser Technology · RWTH Aachen University

   Affiliation as printed

   Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen

   RWTH Aachen University, Chair for Technology of Optical Systems TOS, Steinbachstraße 15, 52074 Aachen

4. Peter Loosen Aachen Fraunhofer Institute for Laser Technology ILT Chair for Technology of Optical Systems TOS

   Fraunhofer Institute for Laser Technology · RWTH Aachen University

   Affiliation as printed

   Fraunhofer Institute for Laser Technology ILT, Steinbachstraße 15, 52074 Aachen

   RWTH Aachen University, Chair for Technology of Optical Systems TOS, Steinbachstraße 15, 52074 Aachen