Mini Ball Lens
Spherical ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres fit into smaller packages. The addition of a broadband MgF2 antireflection coating results in a highly efficient lens due to the high refractive index of the glass. Coupling efficiency is generally >90% due to the simplicity of these lenses.
We consistently offer various high quality optical components according to the customer's requirements. Such as prisms,Spherical Lens, aspherial lens,Ball lens,Optical Windows,Achromatic Lens,Cylindrical Lens,beamsplitters,mirrors,color filters,diffraction grating,reflectors,waveplates etc.
Specification of our ball lens: Fused Silica Ball Lens,Optical Glass Spheres,Mini Ball Lens,Half Ball Lens,Bk7 Balls,Optical Glass Balls China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com
*Material:BK7 or other optical glasses
*Diameter:1mm - 40mm
*Dimension Tolerance:+/-0.005mm
*Surface Quality:40-20
*Sphericity:0.005mm
*Coating:optional
LME copper stocks reduce 1,025 tons of aluminum inventory by 1,275 tons
London, June 28 news: The London Metal Exchange (LME) inventory changes in the next five trading days are as follows: (in tons) Variety of relatively new stocks June 28 June 27 June 24 June 23 6 On the 22nd of the month of July 30,250 -1,025 -825 -575 -375 -850 aluminum 528,650 -1,275 -2,925 -3,700 -4,400 -4,925 tin 3,760 +110 +430 -15 -55 -15 lead 38,400 -100 -125 +1,200 +1,725 ​​+ 1,275 Zn 609,825 -2,325 -975 -1,050 -475 -2,025 Nickel 7,368 -426 -72 -144 -48 +78 Aluminum alloy 44,960 remains flat and flat +740 NASAAC 108,940 -460 -480 +220 +820 -560 *NASAAC is North America Special aluminum alloy