Patent ID: 9465155
Filing Date: 2016-10-11
CPC Classification: G02B

Claim Text:
1. A spread illuminating apparatus comprising: a point light source having a light-emitting surface that emits light toward a forward direction, a circuit board on which the point light source is mounted, and a light guide plate having an incident light surface on which the point light source is arranged and an emitting surface that emits light that has introduced from the incident light surface, the light being adapted to advance in a widely spread manner, wherein the light guide plate has an inclined part that tapers in thickness from the incident light surface side toward the forward direction, a pedestal having a receiving surface on which the circuit board is arranged is formed in a region excluding a portion in front of the point light source on an inclined surface side of the inclined part, and the receiving surface of the pedestal is configured to extend from the incident light surface side toward the forward direction so as to incline toward a side of the inclined part, and wherein an inclined angle defined by the receiving surface of the pedestal is set to be less than an inclined angle of the inclined surface of the inclined part.