Wavefront — In optics and physics, a wavefront is the locus (a line, or, in a wave propagating in 3 dimensions, a surface) of points having the same phase. Since infrared, optical, x ray and gamma ray frequencies are so high, the temporal component of… … Wikipedia
Wavefront curvature sensor — A wavefront curvature sensor is a device for measuring the aberrations of an optical wavefront. Like a Shack Hartmann sensor it uses an array of small lenses (or lenslets) to focus the wavefront into an array of spots. Unlike the Shack Hartmann,… … Wikipedia
Adaptive optics — (AO) is a technology used to improve the performance of optical systems by reducing the effects of rapidly changing optical distortion. It is used in astronomical telescopes and laser communication systems to remove the effects of atmospheric… … Wikipedia
Shack-Hartmann — A Hartmann Shack or Shack Hartmann is a type of wavefront sensor. It is commonly used in adaptive optics systems. It consists of an array of lenses (called lenslets) of the same focal length. Each is focused onto a photon sensor (typically a CCD… … Wikipedia
James Webb Space Telescope — General information Organization NASA[1], with significant contributions from ESA and CSA … Wikipedia
LASIK — or Lasik ( laser assisted in situ keratomileusis ) is a type of refractive laser eye surgery performed by ophthalmologists for correcting myopia, hyperopia, and astigmatism. [ [http://www.intelihealth.com/IH/ihtIH/WSS/9339/32123.html LASIK. ]… … Wikipedia
Deformable mirror — A deformable mirror can be used to correct wavefront errors in an astronomical telescope … Wikipedia
Scanning laser ophthalmoscopy — Retinal image of a left eye via Optos Optomap. Scanning laser ophthalmoscopy (SLO) is a method of examination of the eye. It uses the technique of confocal laser scanning microscopy for diagnostic imaging of retina or cornea of the human eye. As… … Wikipedia
List of sensors — * Accelerometer * Touch sensor * Active pixel sensor * Air flow meter * Alarm sensor * Bedwetting alarm * Bhangmeter * Biochip * Biosensor * Breathalyzer * Capacitance probe * Carbon paste electrode * Carbon monoxide detector * Catadioptric… … Wikipedia
Space Telescope Science Institute — The Space Telescope Science Institute (STScI) is the science operations center for the Hubble Space Telescope (HST; in orbit since 1990) and for the James Webb Space Telescope (JWST; scheduled to be launched in 2013). STScI is located on the… … Wikipedia
