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CNC Four-Axis Micromachining of Optics

Photonics Showcase
Jan 2013
Valley Design Corp., HeadquartersRequest Info
 
Valley Design offers advanced capabilities in four-axis CNC micromachining of precision optics in materials including fused silica, quartz, sapphire, glass, silicon, ceramics, molyb-denum, aluminum and all other metals. Valley is a one-stop shop for CNC micromachining, lapping, polishing and dicing. Features include through holes, pockets, corner chamfers, radii, edge chamfers, steps, complex geometries, tight tolerances and polished surfaces. Parts can range from as small as 0.127mm to as large as 450mm.


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GLOSSARY
fused silica
Glass consisting of almost pure silicon dioxide (SiO2). Also called vitreous silica. Frequently used in optical fibers and windows.
glass
A noncrystalline, inorganic mixture of various metallic oxides fused by heating with glassifiers such as silica, or boric or phosphoric oxides. Common window or bottle glass is a mixture of soda, lime and sand, melted and cast, rolled or blown to shape. Most glasses are transparent in the visible spectrum and up to about 2.5 µm in the infrared, but some are opaque such as natural obsidian; these are, nevertheless, useful as mirror blanks. Traces of some elements such as cobalt, copper and...
lapping
1. The process of wearing down the surface of a softer material by rubbing it under pressure against the surface of a harder material that has been formed in the shape opposite to that desired on the softer material. Loose, wet abrasive generally is used between the two parts, but sometimes the abrasive is embedded in the lap in a rigid form (see diamond cutting tool). 2. See fiber lapping.
polishing
The optical process, following grinding, that puts a highly finished, smooth and apparently amorphous surface on a lens or a mirror.
quartz
See crystal quartz; fused quartz.
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