Light Design and Textiles

2019 ◽  
pp. 33-37
Author(s):  
Yuri Nazarov Nazarov
Keyword(s):  
Information Technologies ◽  
Electric Energy ◽  
Electronic Textiles ◽  
Fibre Optics ◽  
Light Emitting ◽  
Textile Materials ◽  
Electronic Engineering ◽  
Unusual Product ◽  
Combining Information ◽  
Functional Purpose

Innovation textile is a new and unusual product type combining information technologies with wide art opportunities. The article considers three types of innovation textiles selected using the functional purpose principle: materials radiating light (electrofluorescence, light emitting diodes, including organic and fibre optics), materials forming an image (LC screens, OLED, LCD) and materials with fluorescence effect. A new cloth type named electronic textiles is a material, which conducts and at the same time consumes electric energy. It combined three formerly independent spheres: textiles, electrical engineering and electronic engineering. Textile materials are the base, on which various electronic devices are mounted.

scholarly journals Single-step-fabricated disordered metasurfaces for enhanced light extraction from LEDs

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Peng Mao ◽  
Changxu Liu ◽  
Xiyan Li ◽  
Mengxia Liu ◽  
Qiang Chen ◽  
...  
Keyword(s):  
Information Technologies ◽  
Visible Spectrum ◽  
Cost Effective ◽  
Single Step ◽  
Light Extraction ◽  
Light Sources ◽  
Fibre Optics ◽  
Light Emitting ◽  
Air Interface ◽  
Industrial Level

AbstractWhile total internal reflection (TIR) lays the foundation for many important applications, foremost fibre optics that revolutionised information technologies, it is undesirable in some other applications such as light-emitting diodes (LEDs), which are a backbone for energy-efficient light sources. In the case of LEDs, TIR prevents photons from escaping the constituent high-index materials. Advances in material science have led to good efficiencies in generating photons from electron–hole pairs, making light extraction the bottleneck of the overall efficiency of LEDs. In recent years, the extraction efficiency has been improved, using nanostructures at the semiconductor/air interface that outcouple trapped photons to the outside continuum. However, the design of geometrical features for light extraction with sizes comparable to or smaller than the optical wavelength always requires sophisticated and time-consuming fabrication, which causes a gap between lab demonstration and industrial-level applications. Inspired by lightning bugs, we propose and realise a disordered metasurface for light extraction throughout the visible spectrum, achieved with single-step fabrication. By applying such a cost-effective light extraction layer, we improve the external quantum efficiency by a factor of 1.65 for commercialised GaN LEDs, demonstrating a substantial potential for global energy-saving and sustainability.

Color Tuning in Electroluminescent Textiles

2016 ◽  
Vol 100 ◽  
pp. 53-58 ◽  
Author(s):  
Evelyn Lempa ◽  
Carsten Graßmann ◽  
Maike Rabe ◽  
Andreas Kitzig ◽  
Edwin Naroska
Keyword(s):  
Zinc Sulfide ◽  
Organic Solvents ◽  
Dielectric Layer ◽  
Research Work ◽  
Transparent Electrode ◽  
Special Focus ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Textile Materials ◽  
Additional Layer

Currently electroluminescent devices, operated by alternating current (AC-EL) on film, paper or textile are based on a capacitor with one transparent electrode and one generally non-transparent, highly conductive electrode and a light-emitting dielectric layer in-between. The light-emitting pigments are mostly based on doped zinc sulfide. Currently available commercial products contain encapsulated pigments dispersed in organic solvents. Those dispersions allow AC-EL-devices illuminating solitary in the colors white, green, blue-green, blue and orange. Blending those pigments leads to numerous new colors however, always linked to loss of brightness in the final device. In this research work the combination of fluorescent organic and inorganic dyestuffs with inorganic EL-phosphors was investigated. The AC-EL-devices were all based on textile materials; all dispersions were free of organic solvents. Special focus was directed to the concentration of dyes in an additional layer within the EL-capacitor as well as the thickness and particularly the positioning of the layer. In the result colors were achieved, which cannot be found by blending the phosphors, such as yellow and red. In addition, depending on the type of added fluorescent dyestuff layer, the brightness could be increased substantially.

Light-emitting textile display with floats for electronics covering

2015 ◽  
Vol 27 (1) ◽  
pp. 34-46 ◽  
Author(s):  
Inese Parkova ◽  
Ivars Parkovs ◽  
Ausma Vilumsone
Keyword(s):  
Electrically Conductive ◽  
Actual Problem ◽  
Content Type ◽  
Light Emitting ◽  
Textile Materials ◽  
Single Piece ◽  
Conductive Yarns ◽  
Conductive Textile ◽  
Weave Pattern ◽  
Electronic Elements

Purpose – Flexible light-emitting textile display is designed with floats for electronic elements covering and electronic contacts insulation what at the same time provides an opportunity to develop aesthetic design of the display in the single piece construction of material. The paper aims to discuss these issues. Design/methodology/approach – Display consists of interwoven electrically conductive yarns, non-conductive yarns and SMD LEDs connected to conductive yarns. Industrial jacquard weaving machine have been used, weave patterns were designed in PC-Edit software. Findings – Weave can be used as a tool to build and evolve electrotextile. Exploring weaving techniques and perceiving electronic circuit as a weave pattern, new approaches can be developed in electrotextile design field. Research limitations/implications – Connections of electronic elements and conductive textile materials still is actual problem what should be explored in further research. Practical implications – Flexible light emitting textile display can be used as output interface integrated into communication clothing by representing different animated images directly on clothing. Display also can be used for accessories, room and auto interior etc. applications. Originality/value – Paper describes method of light source integration directly into textile structure, combining functional and visual design of textile display.

Innovative Materials in Interior Design: Organic Light Emitting Textiles (Oleds)

2013 ◽  
Vol 689 ◽  
pp. 254-259
Author(s):  
Mustafa Adil Kasapseçkin ◽  
Damla Altuncu
Keyword(s):  
Interior Design ◽  
Light Emitting ◽  
Textile Materials ◽  
Advantages And Disadvantages ◽  
Interior Spaces ◽  
Organic Light ◽  
Almost Everywhere ◽  
Nylon Fiber ◽  
Innovative Materials ◽  
Textile Sector

Most of us recognize the textile materials fromthe clothing or home textiles that we have used in daily life. As the usageareas of the textile materials are not limited to these, these materials areused in almost everywhere from the diapers to the nylon fiber, from the healthproducts in the hospitals to the architectural covers. Especially most textilematerials used in interior design are directly related to the areas such asdesign, art, technology and architecture. The textile sector which has directrelations with many developing areas develops in parallel to the today’sadvanced technology. Together with this development, due to the competitiveattitudes of the firms and the developed technology, the importance given tothe usage of the innovative materials in the today’s interior spaces hasincreased. One of the innovative materials developed is organic light emittingtextiles (OLED). Due to the light emitting textiles that will ensure us to lookat the textile materials from a new angle in interior design, it is expectedthat the interior design understanding will change. In this article, theorganic light emitting textiles are examined and it is aimed to discuss theirusage areas, advantages and disadvantages in interior design.

scholarly journals Electric network topology and method of transmission of electric energy

2019 ◽  
Vol 21 (4) ◽  
pp. 95-103
Author(s):  
N. I. Smolentsev ◽  
L. M. Chetoshnikova
Keyword(s):  
Energy Storage ◽  
Network Topology ◽  
Information Technologies ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Network ◽  
Energy Storage Devices ◽  
Electric Networks ◽  
Storage Devices ◽  
Asynchronous Method

The purpose of the work is to reduce losses and increase energy saving in electric networks. To achieve this goal, a multilevel topology of the electrical network and an asynchronous method for transferring electrical energy between nodes including a load, energy sources, energy storage devices connected in an appropriate manner are proposed. It is shown by the mathematical method that this network topology allows using energy storage devices controlled appropriately and using tele-information technologies to optimize the balance of electric energy in the network, achieving equality of the generated and consumed electricity. Such a network topology and a method of transmitting electrical energy can be the basis of digital technologies in the energy sector (ENERNET).

Millikelvin heater using a light emitting diode and fibre optics

Cryogenics ◽  
1991 ◽  
Vol 31 (10) ◽  
pp. 921-923 ◽  
Author(s):  
P.B. Chilson ◽  
J.C. Clark ◽  
G.G. Ihas
Keyword(s):  
Light Emitting Diode ◽  
Fibre Optics ◽  
Light Emitting

ALGORITHMS FOR COMBINING INFORMATION ABOUT WEB-PAGES WITH BACKGROUND ONTOLOGICAL KNOWLEDGE

2019 ◽  
Vol 12 (2) ◽  
pp. 32-37
Author(s):  
Е. Коновальчук ◽  
E. Konoval'chuk ◽  
В. Лавлинский ◽  
V. Lavlinskiy ◽  
С. Яньшин ◽  
...  
Keyword(s):  
Information Retrieval ◽  
Information Technologies ◽  
Semantic Information ◽  
Semantic Networks ◽  
Web Pages ◽  
Web Data ◽  
Web Information ◽  
Semantic Information Retrieval ◽  
Combining Information

Currently, web information technologies are widely developed on the basis of the development of approaches related to the addition of semantics to web data, and the development of the apparatus of semantic networks. This article proposes the development of methods of semantic information retrieval based on algorithms of its association. This approach allows to use the analysis of web-pages with background ontological knowledge and increases its efficiency in comparison with standard approaches.

scholarly journals Ultraflexible organic photonic skin

2016 ◽  
Vol 2 (4) ◽  
pp. e1501856 ◽  
Author(s):  
Tomoyuki Yokota ◽  
Peter Zalar ◽  
Martin Kaltenbrunner ◽  
Hiroaki Jinno ◽  
Naoji Matsuhisa ◽  
...  
Keyword(s):  
Thin Film ◽  
Human Skin ◽  
Information Technologies ◽  
Industrial Applications ◽  
The Body ◽  
Electronic Components ◽  
Light Emitting ◽  
Order Of Magnitude ◽  
Polymer Light Emitting Diodes ◽  
Organic Photodetectors

Thin-film electronics intimately laminated onto the skin imperceptibly equip the human body with electronic components for health-monitoring and information technologies. When electronic devices are worn, the mechanical flexibility and/or stretchability of thin-film devices helps to minimize the stress and discomfort associated with wear because of their conformability and softness. For industrial applications, it is important to fabricate wearable devices using processing methods that maximize throughput and minimize cost. We demonstrate ultraflexible and conformable three-color, highly efficient polymer light-emitting diodes (PLEDs) and organic photodetectors (OPDs) to realize optoelectronic skins (oe-skins) that introduce multiple electronic functionalities such as sensing and displays on the surface of human skin. The total thickness of the devices, including the substrate and encapsulation layer, is only 3 μm, which is one order of magnitude thinner than the epidermal layer of human skin. By integrating green and red PLEDs with OPDs, we fabricate an ultraflexible reflective pulse oximeter. The device unobtrusively measures the oxygen concentration of blood when laminated on a finger. On-skin seven-segment digital displays and color indicators can visualize data directly on the body.

MONITORAMENTO DA SEMEADURA DE SOJA COM DIFERENTES SENSORES ÓPTICOS DE LED

2017 ◽  
Vol 32 (3) ◽  
pp. 215
Author(s):  
Tiago Pereira da Silva Correia ◽  
Saulo Fernando Gomes Sousa ◽  
Leandro Augusto Felix Tavares ◽  
Patrícia Pereira Dias ◽  
Paulo Roberto Arbex Silva
Keyword(s):  
Data Storage ◽  
Optical Sensors ◽  
Information Technologies ◽  
Light Emitting Diode ◽  
Seeding Density ◽  
No Tillage ◽  
Light Emitting ◽  
Plastic Packages ◽  
Counter Model ◽  
Double Factorial

As tecnologias de informação estão amplamente difundidas na agricultura, ocupando espaço em diversas áreas de produção. Na semeadura mecanizada não é diferente, monitores e sensores auxiliam a operação em busca de melhor eficiência produtiva, operacional e econômica. Sendo assim, o objetivo do presente trabalho foi avaliar a eficiência de sensores ópticos equipados com quatro e três Light Emitting Diode (LED’s) na semeadura de soja em diferentes velocidades e densidades de semeadura. O trabalho foi realizado em área experimental do grupo de plantio direto da Faculdade de Ciências Agronômicas de Botucatu/SP, e os fatores utilizados para composição dos tratamentos foram: dois sensores (com 3 e 4 LED’s), três velocidades (4, 8 e 12 km h-1) e três densidades de semeadura (10, 15 e 20 sementes por metro). A semeadura do experimento foi realizada utilizando uma semeadora-adubadora pneumática com sete linhas de semeadura, tracionada por um trator de pneus com 82,02 kW de potência no motor. Em cada linha de semeadura da máquina foi instalado um sensor de LED’s, posicionados no terço médio do tubo condutor de sementes. A metodologia desenvolvida para coleta das sementes utilizou embalagens plásticas amarradas com abraçadeiras de nylon na saída dos tubos condutores, sendo as sementes coletadas contadas por um contador automatizado modelo Seedburo 801 count-a-pak e pelo monitor de bordo modelo MPA2500 instalado na cabine do trator. O delineamento adotado foi o de blocos inteiramente casualizados, com quatro repetições e em esquema fatorial duplo, sendo comparados separadamente o fator sensores × Velocidades; sensores × densidade de semeadura e velocidade × densidade de semeadura, totalizando 126 parcelas experimentais. Os resultados obtidos indicaram que o sensor com três e quatro LED’s possuem eficiência similar se submetidos a velocidade de semeadura de 4 e 8 km h-1. Em condição de alta densidade de semeadura, o aumento da velocidade de semeadura reduz a eficiência do sensor óptico de três LED’s.PALAVRAS–CHAVE: Dosagem, Monitor de semeadura, Plantabilidade, Semeadura. MONITORING OF SOYBEAN SOWING WITH DIFFERENT OPTICAL LED SENSORSABSTRACT: Information technologies are widely diffused in agriculture, taking up space in several areas of production. In mechanized sowing, it is no different, monitors and sensors help the operation in search of better productive, operational and economic efficiency. Therefore, the objective of the present work was to evaluate the efficiency of optical sensors equipped with four and three Light Emitting Diode (LED) in soybean sowing at different speeds and seeding densities. The experiment was carried out in experimental area of the no-tillage group of Botucatu/SP College of Agronomic Sciences, and the factors used to compose the treatments were: two sensors (with 3 and 4 LEDs), three speeds (4, 8 and 12 Km h-1) and three sowing densities (10, 15 and 20 seeds per meter). The sowing of the experiment area was performed using a pneumatic seeder with seven rows of sowing, driven by a tractor of tires with 82,02 kW of power in the engine. A LED sensor was installed in each seeding line of the machine and  positioned in the middle third of the seed conductor tube. Plastic packages tied with nylon clamps at the exit of the conductive tubes were used to collected seeds, counted by an automated counter model Seedburo 801 count-a-pak and data storage by the on-board monitor model MPA2500. The experiment design was completely randomized blocks, with four replications in a double factorial scheme, comparing separately the  following factors, sensors × velocities; sensors × seeding density, and speed × seeding density, Totaling 126 experimental plots. The results obtained indicated that the sensor with three and four LEDs have similar efficiency when submitted to sowing speed of 4 and 8 km h-1. In high sowing density, increasing sowing speed reduces the efficiency of the sensor with three LEDs.KEYWORDS: Dosage, Plantability, Seeder, Seeding monitor.

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