Light conducting plate structure with multiple lens incidence surface
The invention relates to a light guide plate structure with multiple lens light incident surfaces, the light source which is emitted by a light-emitting diode (LED) is converted into a surface light source via the light guide plate. The light incident surfaces of the light guide plate near the LED l...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a light guide plate structure with multiple lens light incident surfaces, the light source which is emitted by a light-emitting diode (LED) is converted into a surface light source via the light guide plate. The light incident surfaces of the light guide plate near the LED light source are provided with a plurality of lens groups which are repeatedly collocated; each of the lens groups comprises a main lens and a plurality of flanking lens which are accompanied to be arranged at the two sides of the main lens; wherein, each flanking lens is composed of a plane and a crown face. By utilizing the lens groups which are collocated in multiple, not only the scattering angle of the incident rays of the LED in the light guide plate can be effectively widened, but also the surrounding perfect reflected light can be collected for recycle; therefore the light and shade phenomenon of the light incident sides in the light guide plate can be reduced and the utilization efficiency of the light sour |
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