A Passive Transponder for Visible Light Identification Using a Solar Cell

Author

Seong-Ho Lee

Author_Institution

Dept. of Electron. & IT Media Eng., Seoul Nat. Univ. of Sci. & Technol., Seoul, South Korea

Volume

15

Issue

10

fYear

2015

fDate

Oct. 2015

Firstpage

5398

Lastpage

5403

Abstract

We introduce a passive transponder for visible light identification using a solar cell. The solar cell in the transponder receives reader light and generates current for the transponder to respond. The ac component of the solar cell current is used for detecting the interrogating signal from the reader and the dc component is used for supplying electric power to the devices in the transponder. In experiments, with the interrogating light from a 3 × 3 visible LED array in the reader, the maximum read distance of the transponder with an 11 cm × 16.5 cm silicon solar cell was ~1 m.

Keywords

light emitting diodes; optical sensors; optical signal detection; solar cells; transponders; current generation; interrogating signal detection; passive transponder; reader light; size 11 cm; size 16.5 cm; solar cell; visible LED array; visible light identification; Arrays; Density measurement; Light emitting diodes; Microprocessors; Optical sensors; Photovoltaic cells; Transponders; LED; Passive transponder; Solar cell; Visible light identification; passive transponder; solar cell; visible light identification;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2015.2440754

Filename

7117342