Search results
Results from the WOW.Com Content Network
Some specify which end of the filament is to be powered by the positive side of the filament power supply (usually a battery). All have glass bodies that measure from 0.285 to 0.400 inches (7.2 to 10.2 millimetres) wide, and from 1.25 to 2.00 inches (32 to 51 millimetres) in overall length.
A push broom scanner, also known as an along-track scanner, is a device for obtaining images with spectroscopic sensors. The scanners are regularly used for passive remote sensing from space, and in spectral analysis on production lines, for example with near-infrared spectroscopy used to identify contaminated food and feed. [ 1 ]
A full spectrum photograph of an old homestead in Montana Full Spectrum Geo-Referenced Orthomosaic (RGB+NIR) obtained with an UAV. Full-spectrum photography is a subset of multispectral imaging, defined among photography enthusiasts as imaging with consumer cameras the full, broad spectrum of a film or camera sensor bandwidth.
A digital scan back or scanning back is a type of digital camera back. Digital imaging devices typically use a matrix of light-sensitive photosensors , such as CCD or CMOS technologies. These sensors can be arranged in different ways, like a Bayer filter , where each row captures RGB components, or using one full-sized layer for each color ...
In 1926, Kenjiro Takayanagi demonstrated a CRT TV receiver with a mechanical video camera that received images with a 40-line resolution. [22] By 1927, he improved the resolution to 100 lines, which was unrivaled until 1931. [23] By 1928, he was the first to transmit human faces in half-tones on a CRT display. [24]
The difference between steppers and scanners is that, during exposure, a scanner moves the photomask and the wafer simultaneously, while a stepper only moves the wafer. Contact, proximity and projection Mask aligners preceded steppers [ 39 ] [ 40 ] and do not move the photomask nor the wafer during exposure and use masks that cover the entire ...
A collimator collimates the beam that is dispersed by a refracting prism and re-imaged onto a detection system by a re-imager. Special care is taken to produce the best possible image of the source onto the slit. The purpose of the collimator and re-imaging optics are to take the best possible image of the slit.
There are two common photomultiplier orientations, the head-on or end-on (transmission mode) design, as shown above, where light enters the flat, circular top of the tube and passes the photocathode, and the side-on design (reflection mode), where light enters at a particular spot on the side of the tube, and impacts on an opaque photocathode.