Loius Daguerre (1787-1851) collaborated with Nicephore Niépce to
develop a way to record photographic images that did not fade over
time. In 1839, years after Niépce’s death, Daguerre
announced that he had achieved this goal. His daguerreotype
needed only three to fifteen minutes of exposure (much less than
other available methods), and the image did not fade when later
exposed to light.