G - Physics – 09 – B
Patent
G - Physics
09
B
G09B 29/10 (2006.01) C25B 1/46 (2006.01) G02B 27/04 (2006.01)
Patent
CA 2111475
ABSTRACT OF THE DISCLOSURE A magnifying viewer unfolds from a "case" configuration to manifest a support base with ribs defining with grooves in side walls an arcuate support plane for a unit e.g. of polymer or polymer-coated card, preferably of credit card size and shape, insertable through groove, and carrying a map, chart, plan or the like which is precision printed or photographically reproduced at a level of detail only resolvable by 3x to 8x lens 68. This lens is preferably planoconvex, with flat side outwards. It gives an overall field of view generally equivalent to the normal usage of a folded map or chart portion. The lens support is hinged at the upper edge of supports so it can tilt for scrutiny of any part of the supported card, by virtue of lower hinge pivots. The arcuate shape of the plane confined with this tilt facility gives accurately focussed magnification at all points on the card.
Marks & Clerk
Woolf Jeffrey Moss
LandOfFree
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