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evaluation Dictionary Terms

Nomarski microscopy
Also referred to as differential interference contrast (DIC) microscopy; Nomarski microscopy is a unique form of microscopy...
edge sensing, second derivative
Technique for the precision evaluation of coincidence of a laser beam's center with the edge of the object under study and...
point spread function
The point spread function (PSF) is a fundamental concept in imaging that describes the response of an imaging system to a...
photometry
Photometry is the branch of science that deals with the measurement of light, particularly in terms of its intensity and the...
visual test chart
A series of high contrast block letters or similar objects arranged to permit the evaluation of eyesight in humans.
otoscope
An otoscope is a medical device used by healthcare professionals, particularly ear, nose, and throat (ENT) specialists,...
optical analysis
The mathematical evaluation of an optical system to determine and quantify its basic optical properties and image quality...
lens testing equipment
Lens testing equipment refers to a range of specialized tools and instruments used to evaluate the optical performance,...
Mohs hardness
Material hardness scale that is used to characterize the scratch resistance of various materials. This surface hardness...
artificial star
A point source of light used for the test and evaluation of image quality. May be a backlit pinhole in an otherwise opaque...
Hindle sphere
A null optic in the form of a concave spherical mirror; used for the test and evaluation of a hyperboloidal aspheric surface.
wedge ring detector
A diffraction pattern sampling unit composed of a 32-element monolithic silicon photodiode array and a readout unit. The...
stroboscopic interferometry
A pulsed interferometer that permits the continuous quantitative mapping of the surface deformation of an adaptive optical...
intravital microscopy
Intravital microscopy is an imaging technique used to visualize biological processes within living organisms, typically in...
optical power spectrum
Also known as the Wiener spectrum or the noise power spectrum, the optical power spectrum is a fundamental quantity in...
data analysis display
An accurate cathode-ray tube display used to provide visual representation stored in a computer for the interpretation and...
Mollier diagram
Graphic evaluation of the operation of a steam thermodynamic cycle of a solar energy system on which enthalpy is plotted...
scatterometry
A measurement technique used for the rapid quantitative evaluation of surface quality based on the detection and analysis of...
pointing interferometer
A device attached to the end of an alignment telescope that detects and calculates a plane mirror's rotation axis that is...
aberration sensor (wavefront sensor)
Designed for the function of optical wavefront analysis. Shack-Hartmann camera aberration sensors use a lens array to image...

(20 results found)

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