Prof. Herbert De Smet Profile

Prof. Herbert De Smet

Full Professor at Univ Gent

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 14 March 2023 Poster + Paper

An experimental study of optical anisotropy of blue-phase liquid crystals as a function of alignment layers

Sumanyu Chauhan, Markus Wahle, Grigory Lazarev, Dieter Cuypers, Herbert De Smet

Proceedings Volume 12417, 1241717 (2023) https://doi.org/10.1117/12.2650752

KEYWORDS: Polarization, Bragg wavelengths, Liquid crystals, Polarized light, Polarimetry, Materials properties

Read Abstract +

Proceedings Article | 4 September 2015 Paper

Reverse replication of circular micro grating structures with soft lithography

Xiaobing Shang, Jeroen Missinne, Nuria Teigell Beneitez, Michal Jablonski, Jelle De Smet, Pankaj Joshi, Dieter Cuypers, Tigran Baghdasaryan, Michael Vervaeke, Hugo Thienpont, Herbert De Smet

Proceedings Volume 9661, 96610V (2015) https://doi.org/10.1117/12.2194351

KEYWORDS: Ultraviolet radiation, Polymers, Polymethylmethacrylate, Silicon, Glasses, Lithography, Coating, Photonics, Liquids, Fabrication

Read Abstract +

Proceedings Article | 17 October 2014 Paper

Replicating micro-optical structures using soft embossing technique

Xiaobing Shang, Jin-Yi Tan, Jelle De Smet, Pankaj Joshi, Esma Islamaj, Dieter Cuypers, Michael Vervaeke, Jürgen Van Erps, Hugo Thienpont, Herbert De Smet

Proceedings Volume 9231, 92310H (2014) https://doi.org/10.1117/12.2065912

KEYWORDS: Ultraviolet radiation, Polymethylmethacrylate, Diffraction gratings, Silicon, Surface roughness, Liquids, Refractive index, Glasses, Diffraction, Optical testing

Read Abstract +

Proceedings Article | 8 May 2014 Paper

Conformable, Low Level Light Therapy platform

Michal Jablonski, Frederick Bossuyt, Jan Vanfleteren, Thomas Vervust, Herbert De Smet

Proceedings Volume 9129, 912921 (2014) https://doi.org/10.1117/12.2054390

KEYWORDS: Light emitting diodes, Skin, Tissue optics, Temperature metrology, Phototherapy, Light, Resistance, Safety, Reliability, Low level phototherapy

Read Abstract +

SPIE Journal Paper | 22 August 2012

Reduced-complexity multiview prediction scheme with content-adaptive disparity vector estimation

Aykut Avci, Jelle De Smet, Jan De Cock, Peter Lambert, Youri Meuret, Herbert De Smet

JEI, Vol. 21, Issue 3, 033009, (August 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.3.033009

KEYWORDS: Computer programming, Cameras, Video, Video coding, Image quality, Image processing, Imaging systems, Motion estimation, Video processing, 3D displays

Read Abstract +

Proceedings Article | 30 January 2012 Paper

A content-adaptive scheme for reduced-complexity, multi-view video coding

Aykut Avci, Jan De Cock, Jelle De Smet, Youri Meuret, Peter Lambert, Herbert De Smet

Proceedings Volume 8290, 829014 (2012) https://doi.org/10.1117/12.912099

KEYWORDS: Computer programming, Cameras, Video, Ions, Video coding, Image processing, Video processing, Algorithm development, Photonics, Image quality

Read Abstract +

SPIE Journal Paper | 1 December 2010

Analysis of two novel concepts for multiview three-dimensional displays using one projector

Lawrence Bogaert, Youri Meuret, Herbert De Smet, Hugo Thienpont

OE, Vol. 49, Issue 12, 127401, (December 2010) https://doi.org/10.1117/12.10.1117/1.3524240

KEYWORDS: Modulators, Digital micromirror devices, 3D displays, Projection systems, Micromirrors, Fresnel lenses, Optical engineering, Modulation, Cylindrical lenses, Optical simulations

Read Abstract +

Proceedings Article | 23 September 2010 Paper

SiGe micromirrors for optical applications

R. Beernaert, J. De Coster, T. Podprocky, A. Witvrouw, S. Severi, A. Avci, J. De Smet, H. De Smet

Proceedings Volume 7750, 77501S (2010) https://doi.org/10.1117/12.873061

KEYWORDS: Mirrors, Electrodes, Micromirrors, Microelectromechanical systems, Laser Doppler velocimetry, Modulation, Digital micromirror devices, Analog electronics, Image processing, Chemical mechanical planarization

Read Abstract +

Proceedings Article | 14 May 2010 Paper

LED projection architectures for stereoscopic and multiview 3D displays

Youri Meuret, Lawrence Bogaert, Stijn Roelandt, Jana Vanderheijden, Aykut Avci, Herbert De Smet, Hugo Thienpont

Proceedings Volume 7690, 769007 (2010) https://doi.org/10.1117/12.850067

KEYWORDS: Projection systems, Light emitting diodes, Liquid crystal on silicon, Modulation, 3D displays, LED displays, Digital micromirror devices, 3D visualizations, Visualization, 3D image processing

Read Abstract +

Proceedings Article | 5 May 2010 Paper

Color uniformity in compact LED illumination for DMD projectors

Stijn Roelandt, Lawrence Bogaert, Youri Meuret, Aykut Avci, Herbert De Smet, Hugo Thienpont

Proceedings Volume 7723, 77230X (2010) https://doi.org/10.1117/12.854333

KEYWORDS: Light emitting diodes, Digital micromirror devices, Projection systems, Optical filters, Light sources, LED lighting, Prototyping, Blue light emitting diodes, Modulators, Relays

Read Abstract +

Proceedings Article | 17 February 2010 Paper

Single projector multiview displays: directional illumination compared to beam steering

Lawrence Bogaert, Youri Meuret, Stijn Roelandt, Aykut Avci, Herbert De Smet, Hugo Thienpont

Proceedings Volume 7524, 75241R (2010) https://doi.org/10.1117/12.838678

KEYWORDS: Digital micromirror devices, Modulators, Projection systems, Modulation, Micromirrors, Fresnel lenses, 3D displays, Optical simulations, Collimation, Beam steering

Read Abstract +

Proceedings Article | 4 February 2010 Paper

Efficient disparity vector coding for multi-view 3D displays

Aykut Avci, Lawrence Bogaert, Roel Beernaert, Jelle De Smet, Youri Meuret, Hugo Thienpont, Herbert De Smet

Proceedings Volume 7526, 752609 (2010) https://doi.org/10.1117/12.838296

KEYWORDS: Cameras, Computer programming, Image quality, 3D displays, 3D image processing, Video coding, Video, Imaging systems, Standards development, Image quality standards

Read Abstract +

Proceedings Article | 23 April 2008 Paper

Demonstration of a polarization-based full-color stereoscopic projection display using liquid crystal on silicon panels and light emitting diodes

Lawrence Bogaert, Youri Meuret, Bart Van Giel, Hüseyin Murat, Herbert De Smet, Hugo Thienpont

Proceedings Volume 7001, 700103 (2008) https://doi.org/10.1117/12.780451

KEYWORDS: Liquid crystal on silicon, Projection systems, Light emitting diodes, Modulation, Polarization, Eyeglasses, Wave plates, 3D displays, Eye, 3D image processing

Read Abstract +

SPIE Journal Paper | 1 December 2007

Two liquid crystal on silicon panel projector with efficient light-emitting diode illumination engine

Hüseyin Murat, Dieter Cuypers, Herbert De Smet, Youri Meuret, Bart Van Giel, Lawrence Bogaert, Hugo Thienpont

OE, Vol. 46, Issue 12, 124002, (December 2007) https://doi.org/10.1117/12.10.1117/1.2822392

KEYWORDS: Projection systems, Light emitting diodes, Liquid crystal on silicon, Polarization, Light valves, Modulation, Green light emitting diodes, Optical engineering, Light sources, Polarizers

Read Abstract +

Proceedings Article | 21 April 2006 Paper

Design of new collection systems for multi LED light engines

Hüseyin Murat, Dieter Cuypers, Herbert De Smet

Proceedings Volume 6196, 619604 (2006) https://doi.org/10.1117/12.660665

KEYWORDS: Light emitting diodes, Reflectors, Projection systems, Light sources, Light valves, Solids, Lamps, Mercury, Homogenization, Infrared radiation

Read Abstract +

SPIE Journal Paper | 1 March 2006

Increased lumens per étendue by combining pulsed light-emitting diodes

Hüseyin Murat, Herbert De Smet, Dieter Cuypers, Youri Meuret, Hugo Thienpont, Michael Vervaeke, Lieven Desmet

OE, Vol. 45, Issue 03, 034002, (March 2006) https://doi.org/10.1117/12.10.1117/1.2186036

KEYWORDS: Light emitting diodes, Projection systems, Lamps, Polarization, Light sources, Liquid crystal on silicon, Optical engineering, Wave plates, Mirrors, Sensors

Read Abstract +

Proceedings Article | 10 April 2005 Paper

Increased lumens per étendue by combining pulsed LEDs

Hueseyin Murat, Herbert De Smet, Dieter Cuypers, Youri Meuret, Hugo Thienpont, Michael Vervaeke, Lieven Desmet

Proceedings Volume 5740, (2005) https://doi.org/10.1117/12.588312

KEYWORDS: Light emitting diodes, Projection systems, Polarization, Lamps, Wave plates, Light sources, Mirrors, Liquid crystal on silicon, Sensors, Polarizers

Read Abstract +

Proceedings Article | 28 March 2003 Paper

Measurement methodology for vertically aligned nematic reflective displays

Dieter Cuypers, Herbert De Smet, Geert Van Doorselaer, Jean Van Den Steen, Andre Van Calster

Proceedings Volume 5002, (2003) https://doi.org/10.1117/12.473849

KEYWORDS: Liquid crystals, Polarization, Beam splitters, Molecules, Polarizers, Mirrors, Dielectric polarization, Birefringence, Measurement devices, Electro optics

Read Abstract +

Proceedings Article | 26 April 2002 Paper

Use of stitching in microdisplay fabrication

Herbert De Smet, Jean Van den Steen, Paul Colson

Proceedings Volume 4657, (2002) https://doi.org/10.1117/12.463793

KEYWORDS: Reticles, Optical alignment, Semiconducting wafers, Lithography, Photomasks, Silicon, Liquid crystal on silicon, Metals, Optical resolution, CMOS technology

Read Abstract +

SPIE Journal Paper | 1 February 2001

Method for measuring the cell gap in liquid-crystal displays

Filip Bruyneel, Herbert De Smet, Jan Vanfleteren, Andre Van Calster

OE, Vol. 40, Issue 02, (February 2001) https://doi.org/10.1117/12.10.1117/1.1337036

KEYWORDS: LCDs, Spatial frequencies, Liquid crystals, Fourier transforms, Refractive index, Error analysis, Molecules, Reflection, Optical filters, Light sources