Profile of Intensity Distribution of Horizontally-Arranged LED Lines

Arif Nur, Rakhman (2009) Profile of Intensity Distribution of Horizontally-Arranged LED Lines. UNY.

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Abstract

This study aims at determining the profile of intensity distribution of horizontally-arranged LED lines and also comparing the distribution of light intensity between the data accounting of several LED lines and direct measurement. The research data collection was done by directly observing the light intensity in angles multiples of 5 starting from 0 to 255. The light intensity in this study was measured with LDR sensor circuit by entering the research object into the light-isolating box. The size of the measured intensity at the time the light touched the LDR had been converted by the electronic circuit in the form of voltage. The research steps included the sensor designing and manufacturing step, LED lines designing and manufacturing stage, light-isolation designing and manufacturing stage, equipment testing stage, and data collection phase. The obtained intensity, then, was normalized and made graphs to determine the intensity profile. Independent variables in this study were the observation angles and the number of LED. The dependent variable was the light intensity and its control variables were the types of LED. Key words : distribution, line intensity, horizontal Year : 2009

Item Type: Article
Additional Information: NIM. 08306141032
Subjects: Matematika dan Ilmu Pengetahuan Alam > Fisika
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Jurusan Pendidikan Fisika
Depositing User: Eprints
Date Deposited: 21 Jun 2012 02:39
Last Modified: 23 Jan 2015 01:17
URI: http://eprints.uny.ac.id/id/eprint/470

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