Results 1 to 10 of about 1,579,823 (328)

Design of Optical System for Ultra-Large Range Line-Sweep Spectral Confocal Displacement Sensor [PDF]

open access: goldSensors
The spectrum confocal displacement sensor is an innovative type of photoelectric sensor. The non-contact advantages of this method include the capacity to obtain highly accurate measurements without inflicting any harm as well as the ability to determine
Weiguang Yang   +5 more
doaj   +2 more sources

A SEMI-AUTOMATED APPROACH TO MODEL ARCHITECTURAL ELEMENTS IN SCAN-TO-BIM PROCESSES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
In the last years, the AEC (Architecture, Engineering and Construction) domain has exponentially increased the use of BIM and HBIM models for several applications, such as planning renovation and restoration, building maintenance, cost managing, or ...
O. Roman   +6 more
doaj   +1 more source

Fully integrated stokes snapshot imaging polarimeter [PDF]

open access: yesEPJ Web of Conferences, 2020
We present a new concept for a fully integrated nano-optical snapshot imaging polarimeter. It consists of a nano-optical retarder and polarizer array with various orientations combined with a microlens array and crosstalk module. That facilitates a fast,
Stock Carsten   +5 more
doaj   +1 more source

Optical spatial modulation design [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
Visible light communication (VLC) systems are inherently signal-to-noise ratio (SNR) limited due to link budget constraints. One favourable method to overcome this limitation is to focus on the pre-log factors of the channel capacity. Multiple-input multiple-output (MIMO) techniques are therefore a promising avenue of research.
T. Cogalan, H. Haas, E. Panayirci
openaire   +4 more sources

Magnetically Enhanced Liquid SERS for Ultrasensitive Analysis of Bacterial and SARS-CoV-2 Biomarkers

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
In this work, it is shown that surface-enhanced Raman scattering (SERS) measurements can be performed using liquid platforms to perform bioanalysis at sub-pM concentrations.
Zhang Ji   +13 more
doaj   +1 more source

Distribution of temperature in a single lens due to absorption of light and heat conduction: an adaptive solver [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
We develop an algorithm for the solution of the stationary heat-equation in a single lens due to absorption of light, heat-conduction and transfer of the heat to the environment while we assume rotational symmetry for the whole situation.
Moritz M. J.
doaj   +1 more source

AR-HUD Optical System Design and Its Multiple Configurations Analysis

open access: yesPhotonics, 2023
The use of augmented reality head-up displays (AR-HUD) in automobile safety driving has drawn more and more interest in recent years. An AR-HUD display system should be developed to fit the vehicle and the complicated traffic environment in order to ...
Qubo Jiang, Zhiyuan Guo
doaj   +1 more source

Design and Optical Analysis of a Refractive Aspheric Intraocular Lens with Extended Depth of Focus

open access: yesOptics, 2023
To obtain a continuous range of clear vision for pseudophakic eyes, a design of intraocular lens (IOL) with extended depth of focus (EDoF) was proposed.
Kunqi Li   +6 more
doaj   +1 more source

Design of Micro Size Optical Scanner Systems [PDF]

open access: yesEngineering and Technology Journal, 2012
The design and analysis of micro optical scanner systems are presented. A simulate software was implemented to study, firstly, the effects of miniaturization on the general optical properties of the system, secondly, the optical design and performance ...
Samira M. Arif   +2 more
doaj   +1 more source

Illuminance and Starting Distance of the Far Field of LED-Array Luminaire Operated at Short Working Distance

open access: yesCrystals, 2020
A luminaire with a light-emitting diode (LED) array can provide hotspot illumination in a short range. Therefore, a design of a luminaire with the largest central illuminance (LCI) and a high uniformity is warranted.
Ching-Cherng Sun   +6 more
doaj   +1 more source

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