2 China 
1 Kazakhstan 
1 Belarus 
Photography / Optical - page 53 - WorldBid B2B Market
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Optical Windows Bk7Lenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceBK7 Windows Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application. Windows are used to admit light in...
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Fused Sillica WindowsGeneral Photography / Optical - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceFused Sillica Windows Fused silica is formed by chemical combination of silicon and oxygen. Advantages of fused silica material include good UV and IR transmission, low thermal expansion, providing stability and resistance to thermal shock over large...
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Optical Caf2 WindowsLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceCaF2 Windows Calcium fluoride (CaF2) is an insoluble ionic compound of calcium and fluorine. Calcium fluoride is commonly used as a window material for both infrared and ultraviolet wavelengths, since it is transparent in these regions (about 0.15 &#...
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Optical Mgf2 WindowsLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceMgF2 windows Magnesium Fluoride Windows applicable for wide range spectrum, and it is particularly useful for Excimer laser application. Windows are used to admit light into an optical system and to exclude dirt and moisture. When selecting windows y...
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Optical Ge Windows CoatingsLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceGe Windows Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 um wavelength band. Its high refractive index makes Ge ideal for low power imaging systems because of minimum surface curvat...
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Optical Si Windows ComponentsGeneral Photography / Optical - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceSi Windows Silicon (Si) is grown by Czochralski pulling techniques (CZ) and contains some oxygen that causes an absorption band at 9 microns. To avoid this, material can be prepared by a Float-Zone (FZ) process. Optical silicon is generally lightly d...
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Optical Plano Convex LensesLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for pricePlano-Convex Lenses Lenses have many applications in range from the simple collection of the scanning of laser beams to precise imaging and image transferring. Lenses are classified as single, cylindrical and achromatic lenses according to the differ...
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Optical Plano Concave LensesLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for pricePlano-Concave Lenses Plano-Concave Lenses have a negative focal length and is typically used to cause a collimated beam to diverge as in a Galilean type beam expander or Telescope. Because the spherical aberration of the Plano-Concave is negative, it...
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Optical Bi Convex LensesGeneral Photography / Optical - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceBi-Convex Lenses Bi-Convex Lenses are most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5mm. Lenses have many applications in range from the ...
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Optical Bi Concave LensesLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceBi-Concave Lenses Bi-Concave Lenses is like the Plano-Concave lenses in that they are used to produce divergent light. The Bi-Concave is best used when the input beam is converging. Specificatio ns: Material: Grade A optical glass or Fused Silica Dim...
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Optical Meniscus LensesLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceMeniscus Lenses Positive meniscus lenses is convex-concave lens thicker at the center than at the edges. They are used to minimize spherical aberration. When used in combination with another lens, it’s will shorten the focal length, and increase the ...
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Achromatic Lenses DoubletsLenses / Optical Components - Xiamen Dnd Optics Co Ltd - China - March 31, 2013 - contact company for priceAchromatic Lenses(Doublets) Achroma tic (Doublets)Lenses Achromat consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at tw...