| 摘要 |
An optical system for reading a microrecord in which a plurality of data sets are formed on a record medium, each set representing a reduced scale image of a distinct page and being dissected into a multiplicity of data sub-sets. The sub-sets, which together form a data set, are dispersed on the medium in accordance with a predetermined pattern, the dispersed sub-sets forming the plurality of data sets being interlaced with each other whereby each data set occupies a distinct position on the medium and may be optically extracted therefrom. The optical system includes an array of lensettes each constituted by a reflective concave element associated with a reflective spherical element, the elements of each lensette being optically aligned with a respective data sub-set whereby the image of the sub-set formed on the concave element is reflected by the spherical element onto a screen.
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