Spektroskopsko istraživanje otisnutih transparentnih podloga

Knežević, Neda (2010) Spektroskopsko istraživanje otisnutih transparentnih podloga. Baccalaureus work - Undergraduate programme. Grafički fakultet. [Mentor: Džimbeg-Malčić, Vesna].

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Abstract

Ideja rada bila je omogućiti upotrebu digitalnog fotoaparata kao kvantitativnog laboratorijskog spektrometra za generiranje transmisijskih spektara, u svrhu ispitivanja optičkih svojstava transparentnih tiskovnih materijala. Provedene eksperimentalne metode ukazuju na mogućnost praćenja promjena jednakih reprodukcija na različitim tiskovnim podlogama, što daje i uvid utjecajne uloge fizikalnih procesa na kvalitetu i izgled otiska. Percepcija reproducirane boje i njezin ton determinirani su interakcijom elektromagnetskog zračenja i otiska, koja prvenstveno ovisi o frekvenciji i kutu upadne svjetlosti, a u velikoj mjeri i o vanjskim uvjetima, te tiskovnoj podlozi. Upadom zračenja na tiskovnu podlogu, dio ukupne energije može biti propušten u drugo sredstvo (τ), dio reflektiran (ρ), a dio apsorbiran u tvari (α), α+ρ+τ = 1 , pri čemu je kod korištenih transparentnih tiskovnih podloga, faktor transmisije svjetlosti (τ>0) ključan faktor koji utječe na kvalitetu percipiranog tona reprodukcije. U skladu s navedenim područjem interesa, definiranim kroz monitoriranje strukture, svojstava te meñuodnosa korištenih materijala (tiskovne podloge, bojila, te ostalih elemenata u tisku), dobiveni su rezultati ispitivanja promatrani u okvirima osnovnih zakonitosti spektrometrije.

Item Type:	Baccalaureus work - Undergraduate programme
Mentor name:	Džimbeg-Malčić, Vesna
Defence date:	13 September 2010
Abstract in english:	The leading idea of this project was to provide the use of digital camera as quantitative laboratory spectrometer for recording transmission spectra, in order to examine the optical properties of the transparent printing materials. Measurements of optical properties of transparent printing materials indicate the possibility of monitoring changes and differences similar reproductions printed on different substrates, which provides insight and influential role of physical processes on the quality of prints. Perception of reproduced color and its tone are determined with the interaction of electromagnetic radiation and prints, which primarily depends on the light wavelength and the angle of incident light, as well as largely about external conditions and the printed substrate. Incoming radiation on the printing substrate is partly transmitted, which depends on substrate optical properties. Transmission of light is a key factor that affects the reproduction appearance of transparent prints (transmission coefficient > 0). In accordance with the above-defined area of interest, detreminated through the monitoring of the structure and properties of used materials, the examed results are observed in the area of basic spectrometry principles.
Uncontrolled Keywords:	spektroskopsko istraživanje, transparentne podloge, spektrometrija, svjetlost
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakultet
City:	Zagreb
Number of Pages:	29
Callnumber:	mal 2009 kne
Inventory number:	Z151
Status:	Unpublished
Date Deposited:	15 Nov 2013 21:43
Last Modified:	15 May 2014 12:08
URI:	http://eprints.grf.unizg.hr/id/eprint/1135

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