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The Pyréolophore, invented by Niépce, was a remarkable lighting system developed in the early 19th century. It revolutionized lighting technology by utilizing combustible gas, such as hydrogen or oil vapor, to produce an intensely bright light. The Pyréolophore found applications in various fields, including lighthouses, street lighting, and even theatrical productions, making it one of Niépce's significant contributions beyond his renowned work in photography.