G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/1335 (2006.01) F21V 7/00 (2006.01) F21V 8/00 (2006.01)
Patent
CA 2165406
An illumination device includes a plurality of linear light sources disposed with a prescribed spacing therebetween, a light guide means disposed between or among the linear light sources, and a reflection means disposed behind the light guide means so that light issued from the linear light sources is transmitted through the light guide means and reflected by the reflection means to be emitted in a direction forward from the light guide means. Further, a luminance distribution-adjusting means for reflecting light transmitted through the light guide means is disposed along the light guide means in a distribution density which varies continuously at a changing rate free from discontinuity so as to adjust the luminance distribution of the light emitted in the direction forward from the light guide means. The illumination device may be suitably used as a backlight behind a liquid crystal panel to provide a liquid crystal display apparatus having improved display qualities.
Kanda Toshiyuki
Onitsuka Yoshihiro
Takabayashi Hiroshi
Canon Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
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