Creating a biophysical trapping device based on an optical radiation source with a light-emitting diode

2021 ◽  
Vol 11 (4) ◽  
pp. 1530-1536
Author(s):  
Abdurashid Khamidillaevich Yusupov
Keyword(s):  
Radiation Source ◽  
Optical Radiation ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Trapping Device

Absolute Luminous Flux and Quantum Yield of Sm3+-Doped Cadmium-Aluminum-Silicate Glasses under the Pumping of Blue Light Emitting Diode

2013 ◽  
Vol 275-277 ◽  
pp. 1974-1977 ◽  
Author(s):  
Yu Lei ◽  
Fang Fang Fu ◽  
Li Zheng ◽  
Zhi Qiang Wang ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Blue Light ◽  
Optical Radiation ◽  
Light Emitting Diode ◽  
Luminous Flux ◽  
Silicate Glasses ◽  
Integrating Sphere ◽  
Aluminum Silicate ◽  
Light Emitting ◽  
Ccd Detector

Absolute luminous flux and quantum yield for multichannel transition emissions have been determined in samarium ion (Sm3+)-doped cadmium-aluminum-silicate (CAS) glasses under the pumping of blue light emitting diode (LED) using an integrating sphere of 30 cm diameter, which connected to a CCD detector with a 400 μm-core optical fiber. The radiant flux and luminous flux for the visible transition emissions (550–750 nm) of Sm3+under the blue LED excitation were solved to be 123 μW and 32 mlm, respectively, which occupied 1.51% and 7.16% of the whole. The total quantum yield of the visible fluorescence of Sm3+has been calculated to be 2.52%. Investigation on optical radiation parameters for multichannel visible transition emissions of Sm3+in CAS glasses provides a reference in developing luminescence and display materials.

Apparatus chromaticity control

2021 ◽  
Author(s):  
Keyword(s):  
Flash Memory ◽  
Optical Radiation ◽  
Humidity Sensor ◽  
Light Emitting Diode ◽  
Digital Signal ◽  
Light Emitting ◽  
Lighting Device ◽  
Temperature And Humidity ◽  
Avr Microcontroller

The article is devoted to the development of a lighting apparatus with chromaticity control of the LED strip depending on the temperature and humidity. To develop a prototype of a lighting installation, an A-Star 32U4 Micromicrocontroller (analogous to ArduinoMicro) and a DHT11 temperature and humidity sensor are used. The A-Star 32U4 Micro microcontroller is a universal programmable module based on the ATmega32U4 AVR microcontroller from Microchip (formerly Atmel) which has 32 KB flash memory, 2.5 KB RAM and built-in USB functionality. Keywords optical radiation; light-emitting diode; LED strip; lighting device; chromaticity; temperature; humidity; thermistor; sensor; microcontroller; chip; digital signal

Problems with signal lighting colours’ recognition

2018 ◽  
Vol 561 (6) ◽  
pp. 12-15
Author(s):  
Grzegorz Owczarek
Keyword(s):  
Spectral Distribution ◽  
Optical Radiation ◽  
Light Emitting Diode ◽  
Graphical Analysis ◽  
Night Vision ◽  
Light Sources ◽  
Light Emitting ◽  
Signal Light ◽  
Different Types ◽  
Spectral Distributions

The article presents the main eye hazards caused by excessive eye exposure on optical radiation. The human eye sensitivity spectral distribution in the context of signal colour recognition was discussed. In order to explain the effects of the mechanism of phenomena responsible for the recognition of signal lights colour, a graphical analysis of spectral distributions of signal lights emitted from traditional incandescent sources and LED sources (light emitting diode) was performed. This analysis also takes into account the conditions under which observation of signal lights may take place (daylight and night vision conditions). The conclusions also indicate the further direction of studies on the influence of colour recognition affected by vision conditions, eye sensitivity spectral distribution (including disturbance of colour recognition) and different types of signal light sources.

Synchronization of Chaotic Quantum Dot Light Emitting Diodes under Optical Feedback Effect

2020 ◽  
pp. 144-148
Keyword(s):  
Quantum Dot ◽  
Delay Time ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Light Emitting Diode ◽  
Feedback Effect ◽  
Complete Synchronization ◽  
Light Emitting ◽  
Coupling Methods ◽  
Coupling Parameters

Chaos synchronization of delayed quantum dot light emitting diode has been studied theortetically which are coupled via the unidirectional and bidirectional. at synchronization of chaotic, The dynamics is identical with delayed optical feedback for those coupling methods. Depending on the coupling parameters and delay time the system exhibits complete synchronization, . Under proper conditions, the receiver quantum dot light emitting diode can be satisfactorily synchronized with the transmitter quantum dot light emitting diode due to the optical feedback effect.

Effects of Nitridation Time on Top-emission Inverted Organic Light Emitting Diode

PIERS Online ◽  
2007 ◽  
Vol 3 (6) ◽  
pp. 821-824 ◽  
Author(s):  
Chien-Chang Tseng ◽  
Liang-Wen Ji ◽  
Yu Sheng Tsai ◽  
Fuh-Shyang Juang
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Nitridation Time ◽  
Organic Light

Items Searching in Factory Warehouse Using Arduino Module

2019 ◽  
Vol 1 (1) ◽  
pp. 1-14
Author(s):  
Tan Liong Ching ◽  
Nureize Binti Arbaiy
Keyword(s):  
Inventory Management ◽  
Liquid Crystal Display ◽  
Light Emitting Diode ◽  
Storage System ◽  
Voice Recognition ◽  
Inventory System ◽  
Search Process ◽  
Light Emitting ◽  
Recognition Function ◽  
Light Function

The smart store system (F3 Storage System) provides an inventory system function, and is supported by voice recognition for items searching purpose in the warehouse. This system is aimed to improve effectiveness in item searching process for the warehouse management. An inventory system structures is employed in this system to enable items management. Voice recognition facility helps the worker to search item in an effective way. Worker can use voice recognition function to search the item in the warehouse, and searched information of the item will be displayed in the liquid crystal display (LCD) screen. Meanwhile, the location of the item will be physically indicated by the light emitting diode (LED) light function. The developed system also contains a barcode system to enhance the process of scheduling warehouse activity. Such facilities will enhance the capabilities of existing inventory management systems in warehouses. Prototyping model is used to assist project development. Arduino technology is used to enable integrated hardware and software to read data or input. With Arduino technology, traditional search items by using text and search functionality are enhanced to allow speech functionality. This functionality makes the search process faster and more efficient.

Sign in / Sign up

Export Citation Format

Share Document