Illumination – With paper – book or copy holder – Notepad
Reexamination Certificate
2007-04-30
2009-06-09
Choi, Jacob Y (Department: 2885)
Illumination
With paper, book or copy holder
Notepad
C362S098000, C362S276000, C362S253000
Reexamination Certificate
active
07543951
ABSTRACT:
Disclosed herein are methods and apparatus for providing a luminous writing surface, whose color, color temperature, and/or brightness are controlled to achieve a desired contrast between the writing surface and markings removably made thereon. For example, LED-based light sources and/or LED-based controllable lighting units can be employed to back-light or edge-light a transparent or translucent material thereby providing the luminous writing surface.
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Dowling Kevin J.
Koerner Brad E.
Choi Jacob Y
Philips Solid-State Lighting Solutions, Inc.
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