X-ray CT Metrology Specialist, Herminso Villarraga-Gómez continues his annual themed X-ray images, with this depiction of the evolution of flashlights. The images obtained using a Nikon XT H 225 ST show the evolution from a 1900’s matchless fisheye flashlight, to a modern LED flashlight of today.
Left: 1900s matchless fisheye flashlight, center left: 1930s solid copper flashlight, center right: 1960s ribbed chrome flashlight, right: modern LED flashlight with a laser pointer. Image obtained with Nikon XT H 225 ST system by Herminso Villarraga-Gómez, Nikon Metrology.
Lighting the way ahead
Flashlights play a central role in the lives of the citizens of a world of light. Most advanced modern flashlights are LED-based. LEDs (light-emitting diodes) are more efficient than incandescent bulbs. In 2014, the invention of efficient blue LEDs was awarded the Nobel Prize in Physics. Subsequently, the United Nations declared the year of 2015 the International Year of Light and Light-based Technologies to raise global awareness of the achievements of light science and its applications, and their importance to humankind.
The success of the International Year of Light was followed by a proclamation of an International Day of Light in a resolution prepared and adopted by the UNESCO Executive Board at its 200th session at the UNESCO HQ in Paris, France, on September 19, 2016. The UNESCO Executive Board resolution was endorsed by the UNESCO General Conference at its 39th session on November 7, 2017. Since then, the International Day of Light is held on May 16th every year.
Take a look at Herminso’s previous projects over the past three years.
The project ‘Lighting the way ahead’ also features in the OSA Optics and Photonics News 2018 photo contest.
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