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Spatial filtering is commonly used to "clean up" the output of lasers, removing aberrations in the beam due to imperfect, dirty, or damaged optics, or due to variations in the laser gain medium itself. This filtering can be applied to transmit a pure transverse mode from a multimode laser while blocking other modes emitted from the optical ...
Optical sorting (sometimes called digital sorting) is the automated process of sorting solid products using cameras and/or lasers.. Depending on the types of sensors used and the software-driven intelligence of the image processing system, optical sorters can recognize an object's color, size, shape, structural properties and chemical composition. [1]
Immersion lithography replaces the usual air gap between the final lens and the wafer surface with a liquid medium that has a refractive index greater than one. The angular resolution is increased by a factor equal to the refractive index of the liquid. Current immersion lithography tools use highly purified water for this liquid, achieving ...
The filter wheel can be lowered out of the lens' path for non-3D material. [1] It has been noted that an earlier version of the spinning polarized filter malfunctioned, but the problem has been addressed with an updated replacement filter which was supplied to all theaters using the system. [ 2 ]
The U.S. Geological Survey said that more than 5.3 million people in California were under a tsunami warning, the Associated Press reported, and that more than 1.3 million people lived close ...
With President-elect Donald Trump's vows to radically revise the United States' immigration system during his second term, Rep. Tony Gonzales, R-Texas, said deportations should narrowly focus on ...
Albertsons shares closed down 2.3%. Kroger shares closed up 5.1%. The White House said after the ruling they were "proud to stand up against big corporate mergers that increase prices, undermine ...
As with objective lenses, a condenser lens with a maximum numerical aperture of greater than 0.95 is designed to be used under oil immersion (or, more rarely, under water immersion), with a layer of immersion oil placed in contact with both the slide/coverslip and the lens of the condenser. An oil immersion condenser may typically have NA of up ...
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