An Approach to Determine the Attributes of Shadow Under Artificial Lighting

The attributes of shadows produced in architectural spaces is one criterion of lighting design. A shadow has two different attributes; harshness-softness and lightness-darkness. The project entitled �An approach for definition and evaluation of shadow characteristics as a design criterion occured under artificial lighting (2011-03-01-DOP01)� was implemented at Y�ld�z Technical University to develop an approach for determining and quantifying the characteristics of shadow. For this purpose, the two attributes of cast shadows were treated separately. This study presents the procedures and results of the project regarding the definition and grading of the harshness-softness attribute of shadows.

Keywords: Umbra, shadow factor; shadow attributes; penumbra; harsh shadow; soft shadow.

Lamba I�� ile Ayd�nlatmada G�lge �zelliklerinin Belirlenmesine �li�kin Bir Yakla��m

�ensin Ayd�n Ya�mur, Leyla Dokuzer �zt�rk
Y�ld�z Teknik �niversitesi, Mimarl�k Fak�ltesi, Mimarl�k B�l�m�, Yap� Bilgisi Anabilim Dal�, �stanbul

Ayd�nlatma tasar�m� �l��tlerinden biri, mimari mekanlarda ortaya ��kan g�lgelerin �zellikleridir. G�lgenin, sertlik-yumu�akl�k ve a��kl�k-koyuluk olmak �zere iki ayr� �zelli�i vard�r. Bir hacimde lamba �� ile yap�lan ayd�nlatmada ortaya ��kan g�lgelerin belirlenmesi ve de�erlendirilmesine y�nelik, Y�ld�z Teknik �niversitesi Bilimsel Ara�t�rma Projeleri Koordinat�rl��nce desteklenen �Lamba I�� ile Ayd�nlatmada G�lge Niteli�inin Belirlenmesi ve Tasar�m Kriteri Olarak De�erlendirilmesi ��in Bir Yakla��m� ba�l�kl� ve 2011-03-01-DOP01 numaral� bir ara�t�rma projesi y�r�t�lm��t�r. Bu ama�la, g�lge niteli�inin iki boyutu ayr� ayr� ele al�nm��t�r. Bu �al��mada, g�lgenin sertlik-yumu�akl�k �zelli�inin tan�mlanmas� ve derecelendirilmesi ile ilgili a��klamalar ve ula��lan sonu�lara yer verilmi�tir.

Anahtar Kelimeler: G�lge �ekirde�i, g�lge fakt�r�; g�lge �zellikleri; sert g�lge; yar� g�lge; yumu�ak g�lge.

�ensin Ayd�n Ya�mur, Leyla Dokuzer �zt�rk. An Approach to Determine the Attributes of Shadow Under Artificial Lighting. Megaron. 2015; 10(2): 162-178

Corresponding Author: �ensin Ayd�n Ya�mur, T�rkiye

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