Inclined reading magnification stand

Details Inclined reading magnification stand Inclined reading magnification stand

2008-09-30

2008-09-30

Sahle, Mahidere S. (Department: 2873)

Optical: systems and elements

Lens

With viewed object or viewed field illumination

C359S811000, C359S813000

Reexamination Certificate

active

11383218

ABSTRACT:
A portable magnification stand includes a lower inner plane area surrounded by and held in place by a lower coplanar support material. A back pair of adjustable arms and a front pair of adjustable arms are mounted to the lower planar base unit and an upper planar lens unit that holds a lens for magnifying objects. The back pair of adjustable arms are longer than the front pair of adjustable arms causing the magnification of objects to appear greater near the front portion of the upper planar lens unit compared with objects near the near the back portion of the upper planar lens unit. Swingable extensions shaped as trapezoidal planar materials can be used in lieu of the adjustable arms to provide the appropriate magnification in a more compact and lighter weight design.

REFERENCES:
patent: 4119289 (1978-10-01), Kanocz
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patent: 4496127 (1985-01-01), Nelson
patent: 5377946 (1995-01-01), Pannu
patent: 5610770 (1997-03-01), Galiani
patent: 6116562 (2000-09-01), Griffin
patent: 6532117 (2003-03-01), Taylor
patent: 6574051 (2003-06-01), Powell
patent: 6595144 (2003-07-01), Doyle
patent: 7168373 (2007-01-01), Hock
patent: 7213794 (2007-05-01), Jefferies
patent: 2004/0041067 (2004-03-01), Jung

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