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A nondispersive infrared sensor (or NDIR sensor) is a simple spectroscopic sensor often used as a gas detector. It is non-dispersive in the fact that no dispersive element (e.g a prism or diffraction grating as is often present in other spectrometers ) is used to separate out (like a monochromator ) the broadband light into a narrow spectrum ...
When measuring horizontal fusion ranges, base in prisms assess fusional divergence while base out prisms assess fusional convergence. The vertical fusional vergence amplitude can also be measured with base up and base down prisms although the horizontal PFR is typically the main focus when testing.
Exophoria is a form of heterophoria in which there is a tendency of the eyes to deviate outward. During examination, when the eyes are dissociated, the visual axes will appear to diverge away from one another. The axis deviation in exophoria is usually mild compared with that of exotropia.
The remains of a New Jersey mother who vanished 14 years ago have been found submerged in a car in the Cooper River last week, according to a nonprofit that advocates for missing people.
Ethan Hawke knows his place in history — with Swifties, at least.. In an interview released Wednesday, May 15, the 53-year-old actor spoke with Sirius XM’s The Jess Cagle Show about making a ...
Bush, 41, shared a sweet snap of Harris, 38, and her daughter Sloane Phillips Krieger-Harris via Instagram Story on Sunday, May 12. “And of course to you, you absolutely magic momma,” Bush ...