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7 terms
Photonics Dictionary: V
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very long baseline interferometry
Consists of a pair of radio telescopes concentrated on a single celestial object. This technique creates a single radio telescope with a diameter equal to the distance between the pair, which allows...
virtual base
The product of the actual base or baseline of a rangefinder or heightfinder, and the power or magnification of the instrument.
vanadate laser
Lasers based on neodymium-doped yttrium or gadolinium vanadate crystals. These include yttrium vanadate (Nd:YVO4), gadolinium vanadate (Nd:GdVO4), and lutetium vanadate (Nd:LuVO4). Vanadate lasers...
vertical imbalance
The difference in base up or down prism power at corresponding points located on the two lenses of a pair of spectacles.
Vickers microhardness test
A test similar to the Knoop hardness test, but used for fractured material. The indenter is a square-based pyramid-shaped diamond.
virtual histology
Virtual histology refers to the use of digital technology and computational methods to simulate or recreate histological images and structures without the need for traditional physical slides and...
VLBI
very long baseline interferometry
Photonics Dictionary
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