Abstract
AS a result of the important advance that have been made in Great Britain in the design and production of optical elements for the micro-scope, it may be claimed that microscope lenses are now being made in Englang equal, if nqt superior to, any made abroad. The excellence of an optical instrument such as the microscope depends however, not on the perfection of its optical elements alone. Mechanical arrangements must be provided by means of which these elements may be held in definite relation to one another without shake and be capable of adjustment in a manner which is convenient to the user. It is well known, for example, that any lack of true centration in the optical parts or of perfect alignment in the optic axis of these parts produces more serious deterioration in the resulting micro-image than does almost any other single factor. The possibility of such deterioration ran largely be prevented by proper attention to the details of mechanical constructjon and design.
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Metallurgical Photomicrographic Apparatus. Nature 120, 516–518 (1927). https://doi.org/10.1038/120516a0
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DOI: https://doi.org/10.1038/120516a0