MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202641049211 A) filed by K Ramakrishnan College Of Engineering on April 17, 2026, for Retractable Tube Light.
Inventors include Hariharan Sm; Dev Prasath B; Keruthikash S; Kumaranathan. R; Revathi K; Sasi Kumar R; and Nithya T M.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: The present invention introduces a retractable tube light system designed to improve the maintenance and efficiency of modern lighting devices. Conventional tube lights are typically constructed as single integrated units in which the power supply, driver circuit, and LED lighting components are permanently connected. When any of these components fail, the entire lighting system is often replaced, resulting in increased maintenance costs and unnecessary electronic waste. The proposed system overcomes this limitation by introducing a modular lighting architecture consisting of a power supply module (10), an LED driver circuit module (3), and an LED lighting module (11). The system receives electrical power from an AC main supply (10) through the AC input (2), which is then converted into regulated direct current using a bridge rectifier (3), resistors (4), film capacitors (5), electrolytic capacitors (6), and a transformer (7). The regulated DC output (9) is supplied to the LED lighting module (11), which produces illumination through light emitting diodes. The modules are interconnected attachment and removal of individual sections. In the event of a hardware or component failure, such as a malfunction in the LED driver module or LED lighting module, only the defective module can be detached and replaced with another compatible module available in electronic shops. This modular replacement capability reduces maintenance time and cost while improving the overall lifespan of the lighting system. The retractable tube light system is therefore designed to be practical, energy efficient. FIG 1 using copper pins (1) that provide reliable electrical connectivity while allowing easy
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