Appeal No. 2002-0530
Application No. 09/175,407
(51), by process of ionizing radiation curable resin composition
(line 64-67, column 3)." We agree that Nishio discloses an
optical article formed of an ionizing radiation-curable resin.
Nishio also discloses a light guide plate (51) for use in a
surface light source for a liquid crystal display. However, as
pointed out by appellant (Brief, page 6, and Reply Brief, page
2), Nishio (column 5, line 64-column 6, line 9) defines "optical
article" as:
a unidirectional or bidirectional array of fine unit
lenses or prisms, such as a lenticular lens as
hereinafter described. More specifically, the optical
article includes light diffusing plates and light
collecting plates for a back light of transmission LCD,
electric decorative boards, advertizing displays, etc.;
screens of projection TV sets; lenticular lenses,
Fresnel lenses and retroflection sheets for light
collecting lenses; diffraction gratings; holograms; and
recording media having modulated grooves or pits so as
to record and reproduce information utilizing changes
in reflectance or transmittance of light, such as
compact discs and videodiscs. Many of these optical
articles have on their surface a fine structure for
efficiently reflecting, refracting or collecting light.
Nishio further reveals (column 19, lines 2-7) that the surface
light source is composed of a light source 52 at the edge of a
light conducting plate 51, a light reflecting layer 53 on the
back of the light conducting plate, and "optical article (lens
array sheet) 9 of the present invention." Thus, contrary to the
examiner's assertion, Nishio specifies a light guide plate as
separate and different from the ionizing radiation-curable resin
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