Concept

Luminance énergétique

Publications associées (25)

Computational Imaging SPAD Cameras

Vision systems built around conventional image sensors have to read, encode and transmit large quantities of pixel information, a majority of which is redundant. As a result, new computational imaging sensor architectures were developed to preprocess the r ...

EPFL2023

DOES COLOR OF GLAZING CHANGE OUR PERCEPTION OF GLARE FROM DAYLIGHT?

Sneha Jain

Windows in workplace environment are desirable for their several proven physiological, psychological and economic benefits. Daylight from windows is also responsible for glare which can cause occupants to close the blinds. Glazing properties of the windows ...

2022

"Rheinkilometer 686-687". Un seuil climatique face à Cologne (DE)

Pierre Wüthrich

Le 26 juillet 2019, une température historique de 41.1°C est enregistrée en Rhénanie du Nord-Westphalie. À Cologne, les conditions métropolitaines caractérisées par la forte densité, les flux et les surfaces absorbantes, provoquent un îlot de chaleur inten ...

2020

Progress in modelling fast-ion D-alpha spectra and neutral particle analyzer fluxes using FIDASIM

Alexander Karpushov

FIDASIM is a code that models signals produced by charge-exchange reactions between neutrals and ions (both fast and thermal) in magnetically confined plasmas. With the ion distribution function as input, the code predicts the efflux to a neutral particle ...

2020

High-resolution tomographic volumetric additive manufacturing

Christophe Moser, Paul Delrot, Damien Claude-Marie Loterie

Tomographic additive manufacturing produces complex parts with a wide range of printable materials but remains limited in terms of resolution. Here, the authors tune the etendue of the light source and accurately control the photopolymerization kinetics us ...

NATURE PUBLISHING GROUP2020

Optical Characterization of an Intra-Arterial Light and Drug Delivery System for Photodynamic Therapy of Atherosclerotic Plaque

Hubert van den Bergh, Georges Wagnières, Matthieu Philippe Emmanuel Zellweger, Andreas Pitzschke, Manish Jain, Ying Xiao

Although the versatility of photodynamic therapy (PDT) is well established, the technical aspects of light delivery systems vary significantly depending on the targeted organ. This article describes the optical properties of a light and drug delivery syste ...

2020

The multi-spectral imaging diagnostic

Basil Duval, Christian Gabriel Theiler, Yanis Andrebe, Kevin Henricus Annemarie Verhaegh, Mirko Wensing

The Multi-Spectral Imaging system is a new diagnostic that captures simultaneous spectrally filtered images from a common line of sight while maintaining a large etendue and high throughput. Imaging several atomic line intensities simultaneously may enable ...

2018

Determination of the radiance of cylindrical light diffusers: design of a one-axis charge-coupled device camera-based goniometer setup

Georges Wagnières, Matthieu Philippe Emmanuel Zellweger, Blaise Lovisa, Andreas Pitzschke, Jenny Bertholet

A one-axis charge-coupled device camera-based goniometer setup was developed to measure the three-dimensional radiance profile ( longitudinal, azimuthal, and polar) of cylindrical light diffusers in air and water. An algorithm was programmed to project the ...

Spie-Soc Photo-Optical Instrumentation Engineers2017

Gérer les meilleures terres agricoles en Suisse; Pratiques cantonales et perspectives d'évolution

Jérôme Chenal, Marc Antoine Messer, Stéphanie Aline Hasler, Mariano Bonriposi

Les surfaces d’assolement illustrent un double paradoxe pour l’aménagement du territoire en Suisse. Premièrement, si les surfaces d’assolement sont les meilleures terres pour la production agricole et donc aussi pour garantir les moyens de subsistance d’un ...

2016

Optical Thickness Measurements of Vacuum Ultraviolet Radiation in the X2 Expansion Tube

Umar Sheikh

Experiments were conducted in the X2 expansion tube to measure vacuum ultraviolet radiation from shock layers representative of reentry conditions at flight equivalent velocities of 10.0 and 12.2 km/s. Cylindrical models of varying lengths were used to mak ...

2016

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