The paper proposes a luminaire design for installation in suspended ceiling systems. The proposed layout reflects current requirements for luminaires used in such ceilings. The developed luminaire employs RuSID LEDs of Russian manufacture, SID 3030 EMC series, and a Russian-made LRD‑040‑0400‑000‑01-D driver as the power supply. The design process explicitly accounts for the spacing between the LEDs and the diffuser. A relationship has been established between the luminaire's photometric parameters and how close the LEDs are to the luminaire's output aperture ("window"). This relationship supports the development of similarly configured luminaires while meeting specified light-distribution requirements. It is particularly relevant for suspended ceiling applications, where ceiling shapes and dimensions vary widely and therefore call for purpose-built structural solutions in the luminaire.
The practical value of the work lies in developing a unified luminaire concept for public lighting, suitable for suspended ceiling systems of different tiers and structural types, with due regard for how the position of the LEDs inside the housing affects the light distribution of the engineered product. The work presents both basic design principles for semiconductor-based luminaires and a parallel design method tailored to luminaires. The scientific and applied contribution is aimed at improving approaches to modern luminaire engineering and at formulating foundational principles for a structured design methodology for LED luminaires used in public lighting. 1. Burmister, Ye. Luminaire / Russian Federation Patent for Invention RU 2548473 C2, 20 Apr. 2015. Appl. No. 2013105494/12, 16 Jun. 2011.
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• suspended ceiling systems
• LED luminaires
• industrial design
• engineering design
• structure
• development
• lighting