To help our customers produce, align, fine-tune and analyze high quality objects with tolerances down to tens of nanometers and micro-radians.
NanoSmith specializes in creating cost-effective, durable, and reliable nanometric positioning products. NanoSmith was founded by Dr. Sie Poon Chang in 2008 in Port Jefferson Station, New York, USA as a sole proprietorship company. Dr. Chang graduated from Columbia University with a Ph. D. in Physics in 1989. Since then, he has been searching for a solution in performing better precision work to fit small budgets. Over twenty years of study, Dr. Chang has become a nanometric positioning expert. In 2007, he developed a unique design for a manual translation stage with a resolution in the nanometer-range, and coined the term Mechanical Nanomover. In 2009, the Nanomover design was granted with patents in many countries, including USA, Germany, Japan, China, and Taiwan. NanoSmith now owns two nano-precision products, the Nanomover and the Dual Precision Micro/Nano Mirror Mount, with nine patents from these five countries mentioned above. In 2012, NanoSmith entered a partnership with GMT Global, Inc., a successful manufacturer in Taiwan. Together NanoSmith and GMT Global, Inc. are able to develop more robust product lines that better serve the needs of our customers.
Sample1, Large 2m x 2m Square Fresnel Lens, Strehl number= 0.997
Sample 2, Mirror, Strehl number= 0.840
Sample1 Surface Roughness= 4.5 nanometer
Sample 2, Surface Roughness= 37 nanomete
Compare interference pattern of 2 planes from the same Interferometer. More fringes correspond to larger angle between these 2 planes. When the fringes are similar in period and in orientation, these 2 planes are parallel.
Large angle between 2 planes
Angle between 2 planes becomes smaller
Overshot the fine tuning.
Tune back a little, these 2 planes are now parallel, within a small tolerance. Great!
Compare interference patterns of 2 planes from the same Interferometer. One interference pattern comes from a leveled water surface in a tray, the other interference pattern (comes from the surface needs to be aligned to be horizontal, for example, the working surface of a machine.) When these 2 fringe patterns, verified by pattern analysis program, are equal in period and in orientation, the plane needs to be adjusted is nearly horizontal with tolerances within +/- several micro-radians.
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