Please use this identifier to cite or link to this item:
Title: A Simple Inexpensive Designing Process of Diffuser Suitable for LED Tube
Authors: Roy, Suvajit
Pal, Radha Raman
Keywords: Light Emitting Diode (LED), Diffusers, Etching, Illumination, SEM, Absorption Coefficient
Issue Date: 24-Dec-2016
Publisher: Vidyasagar University
Series/Report no.: Journal of Physical Sciences;JPS-v21-art10
Abstract: Uniform illumination is an essential optical requirement for Light Emitting Diode (LED) lighting. This paper presents a simple, inexpensive designing procedure of efficient diffuser for uniform illumination of LED tube light. We demonstrate here some acid etched ordinary glass diffusers, and study the uniformity and absorption coefficient of these diffusers to compare their performance with till date market available diffusers. To achieve this goal, model samples were prepared by etching. Etched surfaces were observed by optical microscopy and scanning electron microscopy (SEM). Surface morphology was used to examine the grains size of the etched surface of the tubes. Our investigation showed that grain size and absorption coefficient of the surface increased with the increase of the etching time. Uniformity of the etched diffusers also increased with the increase of the etching time and reaches to a certain optimum level with 16 minute etched tube. Absorption coefficient at this level is just 8.66%, while it is 17.14% to 31.27% for different market available diffusers.
ISSN: 2350-0352
Appears in Collections:Journal of Physical Sciences Vol.21 [2016]

Files in This Item:
File Description SizeFormat 
JPS-v21-art10.pdf1.16 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.