Line-illuminating device and image sensor

Details Line-illuminating device and image sensor Line-illuminating device and image sensor

2006-10-24

2006-10-24

O'Shea, Sandra (Department: 2875)

Illumination

Edge lighted panel

Particular application

C362S600000, C362S555000, C362S558000, C362S625000

Reexamination Certificate

active

07125151

ABSTRACT:
A light guide11of a rectangular cross-section has side faces11a, 11bincluding short sides in the longitudinal direction of which one side face11ais provided with a light-scattering pattern20, formed by screen-printing in white paint, for scattering the light incident to the light guide11. The other side face11bfacing the side face11ais exposed from a casing12to serve as a light-emitting surface. In the present embodiment, it is possible to secure a sufficient amount of light because the whole area of the side face is used as the light-emitting surface. The remaining side faces11c, 11dof the light guide11are side faces including the long sides. Since the side faces11c, 11deasily produce a surface sink during molding, neither the light-scattering pattern20nor the light-emitting surface is provided thereon.

REFERENCES:
patent: 6357903 (2002-03-01), Furusawa et al.
patent: 6612730 (2003-09-01), Ikeda
patent: 6755546 (2004-06-01), Ohkawa
patent: 6783254 (2004-08-01), Fujino et al.
patent: 2002/0114152 (2002-08-01), Fujino et al.
patent: 3083092 (2002-06-01), None

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