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A Fresnel lens ( / ˈfreɪnɛl, - nəl / FRAY-nel, -nəl; / ˈfrɛnɛl, - əl / FREN-el, -əl; or / freɪˈnɛl / fray-NEL[ 1]) is a type of composite compact lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections.
Augustin-Jean Fresnel. Augustin-Jean Fresnel[ Note 1] (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton 's corpuscular theory, from the late 1830s [ 3] until the end of the 19th century. He is ...
A Fresnel rhomb is an optical prism that introduces a 90° phase difference between two perpendicular components of polarization, by means of two total internal reflections. If the incident beam is linearly polarized at 45° to the plane of incidence and reflection, the emerging beam is circularly polarized , and vice versa.
Stock-split adjustment. Mere weeks after announcing the buybacks, Sony attracted considerable market notice when it said it would enact a 5-for-1 stock split. This is to come into force on Oct. 1 ...
At today's stock market close, Broadcom (NASDAQ: AVGO) will make a move to slash its high-flying share price. The technology giant will complete a 10-for-1 stock split, lowering the price of its ...
(Reuters) -The S&P 500 and Nasdaq notched record-high closes on Monday as investors awaited fresh inflation data, commentary from Federal Reserve Chair Jerome Powell and the start of quarterly ...
Point Vicente Lighthouse is a lighthouse in Rancho Palos Verdes, California, United States, north of Los Angeles Harbor. It is 67 feet (20 m) tall and stands on a cliff with a height of 130 feet (40 m). [ 4] It is between Point Loma Lighthouse to the south and Point Conception Lighthouse to the north. The lighthouse was added to the National ...
"History has shown that over time, the U.S. economy and stock market have done well no matter who is in the White House," he said. "This doesn’t mean that Trump 2.0 would be risk-free.