Svetloba v delovnem okolju in njen vpliv na vrednotenje obremenitve vida

Camlek, Nataša

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Title:	Svetloba v delovnem okolju in njen vpliv na vrednotenje obremenitve vida
Authors:	ID Camlek, Nataša (Author) ID Polajnar, Andrej (Mentor) More about this mentor...
Files:	MAG_Camlek_Natasa_2011.pdf (7,51 MB) MD5: 2250E749C979283FFDDA6CF019F8B907 PID: 20.500.12556/dkum/a36f786d-d41e-4ee9-a824-b4e7e334cc8f
Language:	Slovenian
Work type:	Master's thesis
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	Magistrska naloga obravnava svetlobo v delovnem okolju in njen vpliv na Polajnar- Verhovnikov ergonomski koeficient – Ker. Glavni namen magistrske naloge je, razviti novo metodo določevanja obremenitve in obremenjenosti vida pri delavcu. Nova metoda naj bi nadgradila in dopolnila pomanjkljivosti stare ter natančneje opredelila dejavnike, ki vplivajo na obremenitev vida. Ker imajo različni dejavniki različen vpliv in težo na obremenitev vida, se le-ti vrednotijo posebej in med seboj delujejo neodvisno. Četudi je osvetljenost na delovnem mestu ustrezna, še ne pomeni, da je ustrezno tudi delovno mesto, na katerem se delovna naloga izvaja. Zaradi tega razloga so v novi metodi zajeti dejavniki, ki definirajo lastnosti dobre razsvetljave in so pogoj za ustrezno delovno mesto z vidika vidnega zaznavanja. Nova metoda poleg osvetljenosti obravnava in vrednoti še dejavnike, kot so enakomernost osvetljenosti, bleščanje, kontrast in indeks barvnega videza. Nova metoda zajema naslednje točke: • nov način vrednotenja posameznega dejavnika, ki vpliva na obremenitev vida, • nov način točkovanja posameznega dejavnika, • nov oziroma prilagojen izračun Polajnar-Verhovnikovega ergonomskega koeficienta – Ker. Meritve razsvetljave so bile izvedene v podjetju, ki se ukvarja z ekstrudiranjem, vakuumiranjem, brizganjem in potiskom plastike. Rezultate meritev smo uporabili za izračun Polajnar-Verhovnikovega ergonomskega koeficienta – Ker glede na staro in novo metodo. Na podlagi analize podatkov in statistične analize rezultatov so bile podane in potrjene naslednje prednosti nove metode: • nova metoda definira več dejavnikov, ki vplivajo na obremenitev vida, • vsak dejavnik je obravnavan posebej, • vsak dejavnik je vrednoten posebej, • podane so mejne vrednosti za vsak dejavnik, • dejavniki so med sabo neodvisni, • nova metoda ima večji razpon točk obremenitev, zato se lahko obremenitev in obremenjenost določita in vrednotita natančneje.
Keywords:	Svetloba, vid, razsvetljava na delovnem mestu, obremenitev vida, Polajnar-Verhovnikov ergonomski koeficient – Ker, točke obremenitve, nova metoda.
Place of publishing:	[Maribor
Publisher:	N. Camlek]
Year of publishing:	2011
PID:	20.500.12556/DKUM-21503
UDC:	331.101.1:005.061(043)
COBISS.SI-ID:	15644694
NUK URN:	URN:SI:UM:DK:IJPDGI59
Publication date in DKUM:	01.12.2011
Views:	3086
Downloads:	600
Metadata:
Categories:	KTFMB - FS
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Secondary language

Language:	English
Title:	Light in the work environment and its influence to the visual strain evaluation
Abstract:	Master's dissertation treats the light in working environment and its influence on the Polajnar-Verhovnik's ergonomic coefficient – Ker. The main purpose of Master's dissertation is to develop a new method that determines stress and strain of worker's vision. New method will upgrade and complement deficiencies of old method and precisely define the factors that affect the visual strain. Since various factors have different impact to the visual strain, they are evaluated separately. Each factor in new method is acting independently. Although the illluminance at the work place is appropriate, it is not necessary that work place where visual task is performed is appropriate. For this reason the new method includes factors that define quality features in lighting which are basis for a suitable work place. The new method considers factors such as illumination, illuminance uniformity, glare, contrast and colour rendering. The new method is composed of following points: • a new way of evaluation of factors that influence on the visual strain, • a new way of scoring the factors, • a new or adjusted calculation of Polajnar-Verhovnik's ergonomic coefficient - Ker. Lighting measurements were performed in a plastics processing industry (extrusion, vacuuming, injection molding, serigraphy). The results of measuring were used to calculate Polajnar-Verhovnik's ergonomic coefficient - Ker according to the old and the new method. Based on data analysis and statistical analysis of the results the following advantages have been defined and confirmed: • new method is defining additional factors that influence on the visual strain, • each factor is treated separately, • each factor is evaluated separately, • limit values are given for each factor , • factors are independent and • the new method has a larger range of load points for this reason stress and strain can be determined and evaluated precisely.
Keywords:	Light, vision, lighting of work places, visual strain, Polajnar-Verhovnik's ergonomic coefficient - Ker, load points, new method.

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