Razmerje med skotopskim in fotopskim svetlobnim tokom pri novih vrstah svetlečih diod in sestavljenih spektrih

Založnik, Izidor (author), Bizjak, Grega (mentor)

V diplomskem delu sem računal razmerje med skotopskim in fotopskim svetlobnim tokom (S/P razmerje) in povzel rezultate nekaj raziskav v povezavi z S/P razmerjem. V nalogi najprej predstavim svetlobo in človekovo dojemanje svetlobe, nato pa predstavim razliko med skotopskim in fotopskim vidom. V nadaljevanju opišem svetlobne vire, ki jih uporabim v eksperimentalnem delu, ter podam razliko med fotometričnimi in radiometričnimi veličinami. V drugem delu podrobno predstavim razmerje med skotopskim in fotopskim svetlobnim tokom in podam primere, v katerih nam to razmerje koristi. Nato opišem potek merjenja svetlobnih virov in izračunam razmerja v programskem okolju Excel. V zaključku diplomske naloge povzamem rezultate raziskav s področja uporabe S/P razmerja v praksi in podam svoje ugotovitve, do katerih sem prišel tekom opravljanja diplomskega dela.

• Language: Slovenian
• Keywords: svetlobni vir, spekter, razmerje, nočni vid, dnevni vid, cestna razsvetljava
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2023
• PID: 20.500.12556/RUL-149883
• COBISS.SI-ID: 164488451
• Publication date in RUL: 11.09.2023

Secondary language

• Language: English
• Title: The ratio between scotopic and photopic luminous flux in new types of light emitting diodes and composite spectra

Abstract

In my thesis, I calculated the ratio between scotopic and photopic luminous flux (S/P ratio) and summarized the results of some researches related to the S/P ratio. In the thesis, I first introduce light and human perception of light, and then present the difference between scotopic and photopic vision. In the following, I describe the light sources that I use in the experimental part, and give the difference between photometric and radiometric quantities. In the second part, I present in detail the ratio between scotopic and photopic luminous flux and give examples in which this ratio benefits us. Then I describe the process of measuring light sources and calculate the ratios in Excel software environment. In the conclusion of the thesis, I summarize the results of researches from the field of application of S/P ratio in practice and give my findings, which I came to during my thesis.

• Keywords: light source, spectrum, ratio, night vision, day vision, road lighting