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Optics and Optical Instruments

American Journal of Physics, 1961
By B. K. Johnson New Tork: Dover Publications Inc. London: Constable & Co. Pp. viii + 224. Price $1.65. This book is an unaltered republication under a new title of the second (1947) edition of the author's Practical Optics. It is difficult to see why the title has been changed; this is a practical handbook which might appeal most to amateurs or to ...
B. K. Johnson, Charles Williamson
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Optical Instrument for Thickness Measurement

2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2020
In modern metrology it is increasingly common to find the importance of thickness measurements in the production processes of compact materials (metals, plastics, paper, rubber, etc.). A quick and timely measurement is indispensable in those automated industrial processes capable of modifying the production parameters in real time in order to have the ...
Pesatori A., Norgia M., Cavedo F.
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Optical instruments for JNLT

Astrophysics and Space Science, 1989
The plan for optical instruments for the Japanese National Large Telescope is described. Performance of the first-generation instruments is computed on the basis of tentative designs, and the capability of the telescope is demonstrated.
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