focal-plane array
91Wavefront 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,… …
92Pentax cameras — This article discusses the cameras – mainly 35 mm SLRs – manufactured by Hoya Corporation s Pentax division (ペンタックス, Pentakkusu?) and its predecessors, Pentax Corporation (ペンタックス株式会社, Pentakkusu Kabushiki gaisha …
93Retroreflector — Infobox Laboratory equipment name = Retroreflector caption = A gold corner cube retroreflector acronym = other names = uses = Distance measurement by optical delay line inventor = manufacturer = model = related = A retroreflector (sometimes… …
94Multiangle light scattering — (MALS) is a technique for determining, independently, the absolute molar mass and the average size of particles in solution, by detecting how they scatter light. Collimated light from a laser source is most often used, in which case the technique …
95Reciprocal lattice — In physics, the reciprocal lattice of a lattice (usually a Bravais lattice) is the lattice in which the Fourier transform of the spatial function of the original lattice (or direct lattice) is represented. This space is also known as momentum… …
96Optical format — is a measure of the maximum diagonal size of an imaged object in the focal plane of an optical system. The diagonal size of the imaging sensor (film, CCD or CMOS chip etc.) and the optical format of the lens system must be matched. The optical… …
97Dynamic range — For other uses, see Dynamic range (disambiguation). Dynamic range, abbreviated DR or DNR,[1] is the ratio between the largest and smallest possible values of a changeable quantity, such as in sound and light. It is measured as a ratio, or as a… …
98Kodaikanal Solar Observatory — Kodaikanal Solar ObservatoryOrganizationIndian Institute of AstrophysicsLocationKodaikanal, IndiaCoordinatescoord|10|13|50|N|77|28|7|E|Altitude 2,343 meters (7,687 ft) Webpage [http://www.iiap.res.in/centres kodai.htm Kodaikanal Observatory]… …
99High speed photography — [ Eadweard Muybridge, first published in 1887.] High Speed Photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high speed photography as any set of… …
100Thirty Meter Telescope — The Thirty Meter Telescope (TMT) will be a ground based astronomical observatory with a 30 metre (98 foot) diameter segmented mirror capable of observations from the near ultraviolet to the mid infrared (0.31 to 28 micrometres). An adaptive… …
