Sapphire Optical Ball Lens

Ruby half ball lenses are easier to see and therefore easier to handle for physical applications.

Sapphire optical ball lens.

Our stock ball lenses offered in quartz have excellent uv and ir transmission between 185nm to 2000 nm while our sapphire lens have a higher refractive index allowing a very short fall back length to better facilitate fibre coupling. Ruby or ruby doped sapphire owes its red color to traces of chromium oxide chromium content for ruby balls is typically 0 5. Sapphire half ball lenses are available to simplify mounting or system integration. Sapphire and ruby ball lenses are both made from al 2 0 3.

Fiber optics flow meters. Edmund optics offers a variety of sapphire optical components for a range of applications including ball lenses spherical lenses or windows. Sapphire ball lenses feature high refractive indices ideal for minimizing the distance between fiber output and lens. Sapphire and ruby half ball hemispherical lenses feature a very short back focal length with the convenience of a flat surface for easy mounting.

Balls hemispheres synthetic sapphire bearings and ruby bearings are recognized universally as the ideal material for instruments. While their physical and chemical properties are basically the same their optical properties are somewhat different. A sapphire lens ball lens and prism all exhibit exceptional performance in a number of applications that require extreme mechanical optical thermal and chemical robustness. Mechanical optical ball lens and hemispheres from dia.

From figure 2 the na of an n bk7 ball lens is about 0 22 for d d 0 3 to 0 35. Equation 3 yields d d 0 33 for na 0 22. Knight optical supplies a range of stock ball lenses as well as bespoke designs to your own specifications. Index of refraction of ball lens 1 5168 numerical aperture of fiber optic 0 22.

0 15mm in sapphire balls ruby balls ceramic balls glass fused silica lens and more. Sapphire spheres ruby ball glass balls ceramic balls and fused silica balls can be made with drilled holes ground into hemispherical lenses drum ball lenses and given an ar coating to minimize reflection for optical applications. Precision balls optical ball applications. Series msb spheres can be used not only as ball bearings but also as spacers in metrology applications check valve ball seats piston valve seats in flow meters bar code readers and fiber optics.

You would need an n bk7 ball lens with a diameter greater than 6mm 2mm 0 33 to couple a 2mm laser source into a 0 22 na fiber. Sapphire optics and sapphire custom shapes including sapphire balls sapphire lenses sapphire prisms and mechanical parts hold a unique place in the world of optics.