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Persoonlijk profiel

Research profile

Wilbert IJzerman is a Full Professor and Chair of Illumination Optics at Eindhoven University of Technology (TU/e). The TU/e Scientific Computing and Applications team (CASA), which he leads with dr.ir. Jan ten Thije Boonkkamp. They work on the mathematical-physical description and numerical simulation of illumination systems related to:

- The inverse optical problem. In the optical forward problem, the target distribution is calculated by ray tracing. In the inverse problem, the shape of the optical components is calculated directly given the source and target distribution. CASA aims to solve the inverse optical problem for more complex (industry-relevant) optical configurations that consist of more than one or two optical surfaces. In addition, CASA would like to find other solutions than current convex and concave solutions and to integrate the inverse approach with scattering surfaces.

- Improved optical simulation tools. A method based on Hamiltonian optics using the Liouville equation has significant speed advantages and will be developed further in the TTW Perspective Program ‘Free-Shape Scattering Optics’. CASA will extend the developed method to 3D and prove the applicability to practical problems.

The group’s work has resulted in a new versatile algorithm for mass transport problems that may be solved for arbitrary cost functions as well as improved ray tracing methods that are 1000x faster and 100x more accurate than current state-of-the-art methods.

Academic background

After finishing his MSc in applied physics in 1995 and MSc in applied mathematics in 1996 Wilbert obtained his PhD in applied mathematics in 2000, all at the University of Twente.

He completed his executive MBA at Rotterdam School of Management in 2011

In addition to his activities at CASA, Prof. IJzerman guides some PhD students on characterization of optical components and the design of scattering materials at the department of Applied Physics at TU/e. He is also the head of the sector Lighting Technology at Signify Research. In this role he is responsible for the long-term technology roadmap and execution thereof for all lighting products. He is (co-)author of over 50 granted US patents. Wilbert is also a Member of the Industrial Advisory Committee of the European Optical Society.

Vingerafdruk Duik in de onderzoeksthema's waar Wilbert L. IJzerman actief is. Deze onderwerplabels komen voort uit het werk van deze persoon. Samen vormen ze een unieke vingerafdruk.

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WENO Scheme Rekenkunde
Reflector Rekenkunde
Least Square Method Rekenkunde
Lighting Engineering en materiaalwetenschappen

Netwerk Recente externe samenwerking op landenniveau. Duik in de details door op de stippen te klikken.

Onderzoeksoutput 1997 2020

Inverse reflector design for a point source and far-field target

Romijn, L. B., ten Thije Boonkkamp, J. H. M. & IJzerman, W. L., mei 2020, In : Journal of Computational Physics. 408, 1May 2020, 23 blz., 109283.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Reflector
Point Source
Far Field
point sources
reflectors
22 Downloads (Pure)

Active flux schemes on moving meshes with applications to geometric optics

van Lith, B. S., ten Thije Boonkkamp, J. & IJzerman, W., 4 apr 2019, In : Journal of Computational Physics: X. 3, 19 blz., 100030.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
Bestand
mesh
optics
ray tracing
scaling
Liouville equations
2 Downloads (Pure)

A least-squares method for a Monge-Ampère equation with non-quadratic cost function applied to optical design

Yadav, N. K., ten Thije Boonkkamp, J. H. M. & IJzerman, W. L., 1 jan 2019, Numerical Mathematics and Advanced Applications ENUMATH 2017. Radu, F. A., Kumar, K., Berre, I., Nordbotten, J. M. & Pop, I. S. (redactie). Cham: Springer, blz. 301-309 9 blz. (Lecture Notes in Computational Science and Engineering; vol. 126).

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Optical design
Optical Design
Least Square Method
Cost functions
Cost Function
15 Downloads (Pure)

A least-squares method for the design of two-reflector optical systems

Yadav, N., Romijn, L., ten Thije Boonkkamp, J. & IJzerman, W., 2019, In : JPhys Photonics. 1, 16 blz., 034001.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
Bestand
Optical systems
Boundary value problems
Boundary conditions
Monte Carlo simulation
3 Citaties (Scopus)
37 Downloads (Pure)

A Monge–Ampère problem with non-quadratic cost function to compute freeform lens surfaces

Yadav, N. K., ten Thije Boonkkamp, J. H. M. & IJzerman, W. L., 15 jul 2019, In : Journal of Scientific Computing. 80, 1, blz. 475-499 25 blz.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
Bestand
Cost functions
Lens
Cost Function
Lenses
Lens Design

Pers/media

Fast design of a led with the right shade of white

Wilbert L. IJzerman

21/10/19

1 item van Media-aandacht

Pers / media: Vakinhoudelijk commentaar

Tracing the Light Inside LEDs Higher Efficiency

Wilbert L. IJzerman

14/09/17

1 item van Media-aandacht

Pers / media: Vakinhoudelijk commentaar

Tracing the light inside a LED

Wilbert L. IJzerman

13/09/17

1 item van Media-aandacht

Pers / media: Vakinhoudelijk commentaar

Tracing the light inside LEDs

Wilbert L. IJzerman

13/09/17

1 item van Media-aandacht

Pers / media: Vakinhoudelijk commentaar

What if we are measuring light improperly?

Wilbert L. IJzerman

2/03/16

1 item van Media-aandacht

Pers / media: Vakinhoudelijk commentaar

Scriptie

Fast ray tracing in phase space for optical design

Auteur: Portegies, J., 31 jan 2014

Begeleider: ten Thije Boonkkamp, J. (Afstudeerdocent 1), IJzerman, W. (Externe coach) & Tukker, T. (Externe coach)

Scriptie/masterproef: Master

Bestand

Inverse design of cylindrically symmetric reflector with scattering surfaces

Auteur: Jiang, S., 31 aug 2017

Begeleider: ten Thije Boonkkamp, J. (Afstudeerdocent 1) & IJzerman, W. (Afstudeerdocent 2)

Scriptie/masterproef: Master

Bestand
Bestand

Numerical models of light scattering in a dusty plasma

Auteur: Bertens, M., 2016

Begeleider: IJzerman, W. (Afstudeerdocent 1), Beckers, J. (Afstudeerdocent 2) & Schepers, L. (Afstudeerdocent 2)

Scriptie/masterproef: Bachelor

Bestand

Ray-optics analysis of switchable auto-stereoscopic lenticular-based 2D/3D displays

Auteur: Sluijter, M., 31 dec 2005

Begeleider: IJzerman, W. (Afstudeerdocent 1), de Boer, D. (Afstudeerdocent 2) & Kroesen, G. (Afstudeerdocent 2)

Scriptie/masterproef: Master

Bestand