Ophthalmic Plastic Lenses Made Of Cr-39, Mid & Hi Index Material, Ar & Hard Coating Preferred
Material:Sapphire, K9 Fused Silica, Germanium, ZnSe. Dia:0.3-200mm Surface quality:20-10 Fringe:3(0.5) Tolerance:+/-0.002mm. AR BBAR Coating
Basic properties of optical linbo3 crystal lens as follow: crystal structure:trigonal, point group 3m lattice parameters:a=b=5.148 , c=13.863 density:4.64 g/cm3 melting point:1250 degrees curie point:1142+/- degrees mohs hardness:55 dielectric constant :e11/e0 = 85; e33/e0 = 29.5 thermal conductivity:38 w/m egrees at 25 egrees thermal expansion coefficient:a1=a2 =2x10-6 egrees, a3=2.2x10-6/ degrees at 25degrees piezoelectric strain constant:d22 = 2.04 x 10-11 c/n, d33 = 19.22 x 10-11 c/n elastic stiffness constant:ce11 = 2.04 x 1011 n/m2, ce33 = 2.46 x 1011 n/m2 As request
Material optional Dimension Tolerance :0.1mm Angular Tolerance :3' Surface Quality : 60/40 40/20 Sharp Edges:optional Coating:optional Optional
"specification of our fisheye lens as follow: *37mm 0.42x fisheye lens; *72mm, 82mm 0.7x fisheye lens " As request
Optical sapphire ball lens and half ball lens are both made from Al203, it's ideal for demanding applications (such as laser systems). They have a lot of advantages: 1/ Stronger than standard optical glass,they have extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. 2/ Transmits Wavelengths Ranging From UV to Mid-Infrared (0.2 - 5.5µm.) Materials characteristic Refractive index (nd) 1.768 Coefficient of dispersion (Vd) 72.2 Density (g/cm3) 3.97 TCE (μm/m) 5.3 Soften Temperature () 2000 Knoop hardness (kg/mm2) 2200 About sapphire materials for our ball lenses We only choose the best sapphire material to process the ball lens and hemispherical half ball lenses for our customers. As you know, sapphire has higher performance and higher purity near the center in the process of growing. So only the ball lens made from this part of the material has better performance.
"we supply optical spherical ball lens Specifications: Material: bk7, lasfn9 glass or other optical glass Sphericity: /4 at 633nm Surface quality: 20-10 Diameter: 1m Coating (optional): r
Product list Lenses Optical prisms Optical filters Optical filters Optical mirrors Optical windows Optical components We can produce as customers' request, like plano-concave lens, plano-convex lens, double-concave lens, meniscus lens, achromatic lens, triplet lens and rod lens. The used materials include bk7, sf11, uv-fused silica, and caf2, etc. Example. Specifications: Materials:bk7, fused silica, ge, si, caf2... Diameter:1.5300mm Diameter tolerance:+/-0.02 mm Thickness tolerance:0+/-0.02mm Centring error
CaF2 half ball lens
