Results 31 to 40 of about 6,294 (295)

Note on Luminous Flux Discrimination in Monkey and Man

Quarterly Journal of Experimental Psychology, 1959
Subjects were instructed to equate the brightness of two stimuli of different areas presented alternately to the far periphery. The results are closely describable by IA = k (Ricco's Law), indicating that the subjects equated total luminous flux. It is suggested that these results and certain other behavioural and anatomical considerations make it ...
Gross, C, Weiskrantz, L
openaire   +2 more sources

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Luminous flux through the vertical circle with medium

, 2015
The luminous flux through the vertical circle in medium is ...
Schröer, Harald
core   +1 more source

3D Printing of Highly Dense and Translucent Zirconia Parts for Dental Applications: Effect of Filament Overlapping

Advanced Materials Technologies, EarlyView.
This study formulated a 5Y‐PSZ zirconia paste for extrusion‐based additive manufacturing via direct ink writing, producing dense ceramic structures for dental applications. A colloidal approach with 47 vol% nanometric powder and tailored additives optimized rheology and printability.
Juliana de Freitas Gouveia Silva, Manuel Fellipe Rodrigues Pais Alves, Ana Carolina da Silva, Tiago Moreira Bastos Campos, Renata Marques De Melo, Susana Maria Henriques Olhero   +5 more
wiley   +1 more source

Mechanistic Insight Into the Polymorph‐Dependent Photosalient Effect of a White Light or Two‐Photon Activated Photoreactive Molecular Salt

Angewandte Chemie, EarlyView.
Photocycloaddition in stilbene‐type salt polymorphs exhibit distinct light‐driven responses: OHT‐TI shows a violent photosalient effect under visible and NIR (two‐photon) irradiation, whereas OHT‐TII reacts statically. Packing and computational analysis reveals that shell‐like structures in OHT‐TI frustrate structural relaxation, accumulating explosive
Emanuela Santagata, Francesco Ambrosio, Amedeo Capobianco, Andrea Peluso, Giorgia Rizzi, Stijn Van Cleuvenbergen, Yovan de Coene, Koen Clays, Paolo Pio Mazzeo, Roberto Centore, Fabio Borbone   +10 more
wiley   +2 more sources

Uncertainty analysis of spectral flux measurement using Monte Carlo simulation

Journal of the European Optical Society-Rapid Publications
In photometry, spectrally integrated quantities are commonly used, and their uncertainties are calculated using classical approaches. Since determining correlations at different wavelengths and effects on spectrally integrated quantities is rather ...
Yaran Şenel, Kösemen Zühal Alpaslan, Akkan Çağri Kaan, Nişancı Hilal Fatmagül, Krüger Udo, Sperling Armin   +5 more
doaj   +1 more source

Measurement and evaluation of luminous flux maintenance of LED lamps

, 2018
Jednym z parametrów decydujących o trwałości użytkowej lamp LED jest spadek strumienia świetlnego w trakcie eksploatacji. Znajomość spadku strumienia świetlnego jest ważna również ze względu na dobór odpowiedniej wartości cząstkowego współczynnika ...
Wandachowicz, K., Zabłocka, J., Zalesińska, M., Raczak, A.   +3 more
core   +1 more source

Multi‐Dielectric Metasurfaces for Ultrabright, Tunable Structural Color and Reconfigurable Optical Filtering with Extraordinarily Large Color Span

Advanced Optical Materials, EarlyView.
Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah, Yavuz Selim Aydın, Hilmi Volkan Demir   +2 more
wiley   +1 more source

Enhancing CSK performance in QLED-based VLC: A multi-objective optimization approach

Ain Shams Engineering Journal
Optimizing constellation points for Color Shift Keying (CSK) modulation in Quadrichromatic Light Emitting Diode (QLED)-based Visible Light Communication (VLC) systems poses a significant challenge.
Serkan Vela, Gökçe Hacıoğlu
doaj   +1 more source

Study of Temperature Effect on Luminous Flux of High Power Chip on Board Light Emitting Diode [PDF]

, 2014
High power chip on board light emitting diode (HPCOBLED) are a promising solid state light technology for a variety of lighting applications. In this study, we studied temperature effect on luminous flux of HPCOBLED using VMI-PR-001 system of Vietnam ...
Xuan, Vu Khanh, Lan Anh, Luu Thi, Son, Vo Thach, Quan, Cao Xuan   +3 more
core