Present there were teachers, researchers, graduate students and field technicians from various units including Kim Il Sung University, Kim Chaek University of Technology, Pyongyang University of Architecture and the Pyongyang Lighting Appliances Factory.

A method of designing the lighting optical system for LED askiatic lamp and other proposals were estimated for their great practical significance.

During the presentation, there was a lecture on the world trend of development in the design of lighting source and its application.