Augustin-Jean Fresnel was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, fully supplanting Newton's corpuscular theory, from the late 1830s until the end of the 19th century. He is perhaps better known for inventing the catadioptric (reflective/refractive) Fresnel lens and for pioneering the use of "stepped" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler dioptric stepped lens, first proposed by Count Buffon and independently reinvented by Fresnel, is used in screen magnifiers and in condenser lenses for overhead projectors.
French physicist Augustin-Jean Fresnel submitted a memoir on the diffraction of light to the Royal Academy of Sciences, providing strong support for the wave theory of light.
On July 29, in the year 1818, French physicist Augustin-Jean Fresnel submitted a memoir on the diffraction of light to the Royal Academy of Sciences, providing strong support for the wave theory of light. This event is recorded as a Selected Events event in the history of July 29, one of 426 recorded events on this date across all of history.
Key Facts
- This event took place on July 29, 1818 (AD era).
- It is categorised as a Selected Events event in recorded history.
- Referenced in 4 Wikipedia articles.
- Wikipedia source last updated on 15 July 2026.
On This Date in History 426
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