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Yttrium orthovanadate (YVO 4) is a transparent crystal.Undoped YVO 4 is also used to make efficient high-power polarizing prisms similar to Glan–Taylor prisms. [1]There are two principal applications for doped yttrium orthovanadate:
Neodymium-doped yttrium orthovanadate (Nd:YVO 4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate. It is commonly used as an active laser medium for diode-pumped solid-state lasers. It comes as a transparent blue-tinted material. It is birefringent, therefore rods made of it are usually rectangular.
number Visible color Filter factor or alternate designation F‑stops correction Uses and characteristics Photometrics 80A blue: 4: 2: Raises the scene's color temperature from 3200 K to approximately 5500 K, which allows use of daylight balanced film with tungsten lighting. Results in mired shift of -131. [9]: 37 80B blue: 3 1 + 2 / 3
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They most commonly emit light at 473 nm, which is produced by frequency doubling of 946 nm laser radiation from a diode-pumped Nd:YAG or Nd:YVO4 crystal. [24] Neodymium-doped crystals usually produce a principal wavelength of 1064 nm, but with the proper reflective coating mirrors can be also made to lase at other non-principal neodymium ...
A color wheel or color circle [1] is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc. Some sources use the terms color wheel and color circle interchangeably; [ 2 ] [ 3 ] however, one term or the other may be more prevalent in ...
An 1895 mechanical color wheel, used for experiments with color vision A mechanical four-petal (red, green, blue, white) color wheel inside a 1998 digital light processing (DLP) video projector A color wheel or other switch for changing a projected hue (e.g., for an optical display) is a device that uses different optics filters or color gels ...
Colorimetry is "the science and technology used to quantify and describe physically the human color perception". [1] It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space tristimulus values and related quantities.