| 摘要 |
A lens magnification system is provided for booklets, such as restaurant menus, to enable persons having impaired vision or persons in an environment of poor light to magnify the print or other images of the booklet to the extent that it becomes easily readable. In one form of the invention a flat sheet type lens, such as a Fresnel lens, is supported for linear movement and for pivotal movement by a pivot frame structure to enable movement of the lens from a stored position between the pages of the booklet to a position for use and to be selectively positioned at a desired distance from and in parallel relation to a page of the booklet for magnification of the print or other images thereon. The magnification system may be releasably attachable to conventional booklets or in the alternative may be disposed in fixed assembly with the structure of the booklet. In another embodiment of the invention the lens is physically connected to the structure of the booklet by one or more accordion connectors that permit the lens to be manually moved from a position of storage to a position of use that is selected by the user. As a further alternative a folding container may be provided having pockets for receiving maps and other printed matter. A lens defining a wall of the folder is spaced from a pocket wall sufficiently to magnify the printing on items located within the pockets.
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