Patent ID: 8654445
Filing Date: 2014-02-18
Classification: G02B

Abstract:
1. A light guide plate comprising: a light entrance section adapted to take in an image light inside; a light guide section having first and second total reflection surfaces extending so as to be opposed to each other, and adapted to guide the image light taken in from the light entrance section by total reflection on the first and second total reflection surfaces; an image take-out section having a plurality of reflecting units each having a first reflecting surface and a second reflecting surface having a predetermined angle with the first reflecting surface, and arranged in a predetermined direction, and adapted to make it possible to take out the image light to an outside by deflection of a light path performed by the first reflecting surface reflecting the image light entering via the light guide section and the second reflecting surface further reflecting the image light reflected by the first reflecting surface; and a light emission section adapted to emit the image light, which passes through the image take-out section, to the outside, wherein the first and second reflecting surfaces extend in a direction parallel to the first total reflection surface, and are tilted at respective angles different from each other with the first total reflection surface around respective axes in longitudinal directions extending perpendicularly to the predetermined direction in which the plurality of reflecting units is arranged, the first reflecting surface has a tilt angle from 80° to 100° with the first total reflection surface of the light guide section, and the second reflecting surface has a tilt angle from 30° to 40° with the first total reflection surface of the light guide section.