Ellipsoid Reflector Design To Use In Architectural Lighting

Leyla Dokuzer �zt�rk¹, Togan Tong², �ensin Ayd�n Ya�mur¹
¹Y�ld�z Teknik �niversitesi, Mimarl�k Fak�ltesi, Yap� Fizi�i Bilim Dal�
²Y�ld�z Teknik �niversitesi, Mimarl�k Fak�ltesi, Bilgisayar Ortam�nda Tasar�m Bilim Dal�

The luminaire is the main tool to set up a lighting arrangement in an interior which provides the good visual conditions completely. The fundamental aim of luminaire design is to send the light of a lamp, emitting in almost all directions, in the desired directions. The control of lamp light is generally possible by reflection of light. Therefore, most luminaires include
a reflector to direct the lamp light in the necessary directions and great importance is attached to reflector design in lighting. In order to obtain successful results in reflector design, controlling the features of the luminaire such as light intensity distribution, luminaire efficiency, illuminance distribution during the reflector design phase is important as well as
forming the reflector shape according to the desired conditions. Curved and cylindrical reflector designs have been made to provide uniform illuminance distribution by using different point and linear light sources in the research project with the
title �Basic Principles and Recommendations on Reflector Design to Provide Uniform Illumination� supported by T�B�TAK. Light intensity distribution, luminaire efficiency of the luminaires containing the designed reflectors and the occurred illuminance distributions are determined with the help of a luminaire analyze and design program. In this study,
the analyze results of ellipsoid reflectors are introduced.

Keywords: Reflector design, ellipsoid, uniform illuminance distribution, point light source, light intensity distribution.

Mimari Aydinlatmaya Y�nelik Elipsoit Yansitici Tasarimi

Bir mekandaki iyi g�rme ko�ullar�n�n eksiksiz olu�mas�n� sa�layacak ayd�nlatma düzeninin kurulmas�nda temel ara� ayd�nlatma ayg�t�d�r. Ayd�nlatma ayg�t� tasar�m�nda ama�, lamban�n hemen hemen tüm do�rultulara yay�mlad�� istenen do�rultulara y�nlendirmektir. Lamba ��n�n y�nlendirilmesi a��rl�kl� olarak ��n yans�t�lmas� ile olanakl�d�r. Bu nedenle, ayd�nlatma ayg�tlar�n�n �o�u, lamba ��n� gerekli do�rultulara yans�tacak bir yans�t�c� i�erir ve yans�t�c� tasar�m� ayd�nlatmada �nemli bir yer tutar. Yans�t�c� tasar�m�nda ba�ar�l� sonu�lar elde edebilmek i�in, yans�t�c�y� iste�e uygun ko�ullar� sa�lamak üzere bi�imlendirmek kadar, yans�t�c�n�n tasar�m sürecinde ayd�nlatma ayg�t�n�n ��k ye�inlik da��l�m� ve geriverimi, olu�acak ayd�nl�k da��l�m� gibi �zelliklerin denetlenmesi de büyük �nem ta��r. T�B�TAK taraf�ndan desteklenen �Düzgün Yay�lm�� Ayd�nl�k Sa�lanmas�na Y�nelik Yans�t�c� Tasar�m�nda Temel �lkeler ve �neriler� ba�l�kl� proje kapsam�nda, �e�itli noktasal ve do�rusal lambalar kullan�larak düzgün yay�lm�� ayd�nl�k olu�turmak amac�yla d�nel ve silindir yans�t�c� tasar�mlar� yap�lm��t�r. Tasarlanan yans�t�c�lar�n yer ald�� ayd�nlatma ayg�tlar�n�n ��k ye�inlik
da��l�m�, geriverimi ve olu�turduklar� ayd�nl�k da��l�mlar� bir ayd�nlatma ayg�t� analiz ve tasar�m program� arac�l�� ile belirlenmi�tir. Bu �al��mada, elipsoit yans�t�c�lara ili�kin analiz sonu�lar� sunulmu�tur.

Anahtar Kelimeler: Yans�t�c� tasar�m�, elipsoit, d�zg�n yay�lm�� ayd�nl�k, noktasal ��k kayna��, ��k ye�inlik da��l�m�.

Leyla Dokuzer �zt�rk, Togan Tong, �ensin Ayd�n Ya�mur. Ellipsoid Reflector Design To Use In Architectural Lighting. Megaron. 2008; 3(1): 33-52

Corresponding Author: Leyla Dokuzer �zt�rk, T�rkiye

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