20.500.12556/DKUM-21503 Svetloba v delovnem okolju in njen vpliv na vrednotenje obremenitve vida Light in the work environment and its influence to the visual strain evaluation 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. 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. Svetloba vid razsvetljava na delovnem mestu obremenitev vida Polajnar-Verhovnikov ergonomski koeficient – Ker točke obremenitve nova metoda. Light vision lighting of work places visual strain Polajnar-Verhovnik's ergonomic coefficient - Ker load points new method. true true false N. Camlek] Slovenski jezik Angleški jezik Magistrsko delo 2011-11-29 19:33:39 2011-12-01 07:53:18 2022-04-14 10:38:55 2023-12-25 03:23:12 2011 0 [Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 331.101.1:005.061(043) 15644694 URN:SI:UM:DK:IJPDGI59 MAG_Camlek_Natasa_2011.pdf MAG_Camlek_Natasa_2011.pdf 1 2250E749C979283FFDDA6CF019F8B907 290b5f4541b0d6d5d7dc9fceb9c62667ddb702472e9ad2d135d849b1a8dfee97 df62085b-7c05-11eb-bb7a-00155d0001ca 20.500.12556/dkum/a36f786d-d41e-4ee9-a824-b4e7e334cc8f https://dk.um.si/Dokument.php?lang=slv&id=27224 Fakulteta za strojništvo 0 0 0