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In 2022, II-VI acquired laser manufacturer Coherent, Inc.. [14] and took the name Coherent Corp. Carl Johnson served as II-VI's first CEO from 1985 to 2007. He stepped down as CEO in 2007 and was named chairman of the board, a position he held until 2014. [15] Johnson was succeeded as CEO by Francis Kramer, who had been president since 1985. [13]
VIIRS was launched on board Suomi NPP by a United Launch Alliance Delta II rocket from the Vandenberg Air Force Base at 5:48 am EDT on 28 Oct, 2011. [6] VIIRS was designed to expand upon the data collected by the aging MODIS and AVHRR sensors by collecting radiometric measurements of Earth in the visible and infrared spectra. This data is used ...
Infrared camera on Midcourse Space Experiment [21] Spitzer IRAC ch1 = 3.6 μm ch2 = 4.5 μm ch3 = 5.8 μm ch4 = 8.0 μm Infrared Array Camera on Spitzer Space Telescope: Spitzer MIPS 24 μm 70 μm 160 μm Multiband Imaging Photometer for Spitzer on Spitzer Stromvil filters U = 345 nm P = 374 nm S = 405 nm Y = 466 nm Z = 516 nm V = 544 nm
The AN/PEQ-2 has two infrared laser emitters;one narrow beam used for aiming the rifle and one wide beam used for illuminating targets, like a flashlight. [9] The beams can only be seen through night vision goggles. [9] Each beam can be zeroed independently, and the illuminator's radius is adjustable. The two lasers are tied into one 6-mode ...
An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes, such as fluorescence of materials in X-rays or gamma rays (X-ray image intensifier), or for conversion of non-visible light sources, such as ...
After World War II, Vladimir K. Zworykin developed the first practical commercial night-vision device at Radio Corporation of America, intended for civilian use. Zworykin's idea came from a former radio-guided missile. [15] At that time, infrared was commonly called black light, a term later restricted to ultraviolet. Zworykin's invention was ...
Water vapour in the Earth's atmosphere blocks much of the infrared band, although some limited observations are possible and there is a number of infrared observatories. Sometimes other optical telescopes can make infrared observations if they are equipped with the right detectors, even if they are not dedicated infrared observatories.
II-VI may refer to: II-VI Incorporated , a manufacturer of optical materials and semiconductors II-VI semiconductor compound , a material composed of a metal from either group 2 or 12 of the periodic table and a nonmetal from group 16
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