Applications of light emitting diodes as sensors of their own emitted light

• Autorzy: Vannacci E. , Granchi Simona , Calzolai M. , Biagi E.

Identyfikatory

DOI

10.1016/j.opelre.2019.11.008

• Języki publikacji: EN

Abstrakty

EN

In literature, it is known that a Light Emitting Diode (LED) could be used as a light sensor. It is also known that its emitted light spectrum and sensitivity spectrum can be partially overlapped. This work presents how commercial LEDs can be used as light emitters and simultaneously as sensors of the reflected portion of the light emitted by themselves. The realized devices present a unique characteristic: the transmitter and the receiver coincide spatially as they are the same device. This ensures the perfect overlapping between transmission and reception radiation lobes that could provide many benefits in several applications like as distance measurements or image sensors. Some simple electronic configurations that use LEDs as detectors of their own emitted light are presented. It has been also demonstrated how these LEDsTx-Rx can work as image sensors by acquiring an image of a simple test object, and how they can realize distance sensors with respect to other known techniques. Further advantages can be obtained by realizing LEDTx-Rx array in single integrated devices. With the realization of such devices, it will be also possible to experiment new constructive solutions for commonly used applications, without the need of using separate emitter and receiver.

Słowa kluczowe

EN

light emitting diode (LED); sensors; image sensors; distance sensors; scanner

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2019
• Tom: Vol. 27, No. 4
• Strony: 355--362
• Opis fizyczny: Bibliogr. 39 poz., rys.

Twórcy

autor

Vannacci E.

• Department of Information Engineering (DINFO), University of Florence, Via Santa Marta 3, 50139 Florence, Italy

autor

Granchi Simona

• Department of Information Engineering (DINFO), University of Florence, Via Santa Marta 3, 50139 Florence, Italy

autor

Calzolai M.

• Department of Information Engineering (DINFO), University of Florence, Via Santa Marta 3, 50139 Florence, Italy

autor

Biagi E.

• Department of Information Engineering (DINFO), University of Florence, Via Santa Marta 3, 50139 Florence, Italy

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).