Patent ID: 7671844

Claim:
A portable electronic reference and illumination device having a keyboard, display and processor thin enough to fit between pages of a closed book, comprising: a lid having first and second opposed edges and third and fourth connecting edges, said second edge being curved, whereby said third edge is longer than said fourth edge, said first edge being pivotally connected to said display, said lid having a transparent section that provides an unobstructed view of said display when said lid is closed; a light compartment positioned adjacent the juncture between said second and third edges, said light compartment adapted to contain a light source, said light compartment containing a reflective surface, said light source positioned to provide light along said curved second edge, a switch operable to turn on the light source when the lid moves from a closed position to an open position to provide illumination, said illumination having first, second and third components, said first component being direct illumination from said light source, said second component being reflected light from said reflective surface, and said third component being refracted light from the curved second edge of said lid.