MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511116537 A) filed by IIMT College of Engineering, Greater Noida, Uttar Pradesh, on Nov. 24, 2025, for 'system and method for halogen tungsten light-based one-sun solar simulation.'
Inventor(s) include Mr. Krishna Kumar Karothiya; and Dr. Girish Dutt Gautam.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present disclosure relates to a system (100) and a method (300) for halogen tungsten light-based one-sun solar simulation, configured to generate stable and spectrally accurate illumination for photovoltaic testing. The system (100) includes a power supply unit (102) providing regulated electrical energy to a lamp (104) that produces broadband illumination. An optical filter assembly (106), comprising at least one band-pass filter and one infrared-cut filter, modifies the spectral distribution of the emitted light. A mirror (108) directs the filtered light toward a homogeniser (110), which equalises spatial irradiance before delivering it to a test area (118). An irradiance sensor (114) measures real-time irradiance corresponding to the homogenised output. A control unit (116) receives the sensor data, compares it with a stored one-sun reference profile, determines deviations, and dynamically adjusts lamp current and filter positions to correct intensity or spectral imbalance."
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