PROBLEM TO BE SOLVED: To reduce power consumption and realize high accuracy of line-of-sight detection. A line-of-sight detection device comprises a plurality of a light source unit that emits light, an optical scanning unit that scans an irradiation position of the light emitted by the light source unit, and the light emitted from the optical scanning unit. A light guide optical system that is divided and emitted, a light receiving unit that receives scattered light or reflected light of the light emitted from the light guide optical system toward the user's eyeball and generates a light receiving signal. It is characterized by including a line-of-sight direction determining unit that determines the line-of-sight direction of the user based on the received light signal. [Selection diagram] Fig. 1【課題】消費電力を低減でき、且つ、視線検出の高精度化を実現できる。【解決手段】視線検出装置は、光を出射する光源部と、前記光源部によって出射された前記光の照射位置を走査する光走査部と、前記光走査部から出射された前記光を複数に分割して出射する導光光学系と、前記導光光学系からユーザの眼球に向けて出射された前記光の前記眼球における散乱光または反射光を受光して受光信号を生成する受光部と、前記受光信号に基づき、前記ユーザの視線方向を判定する視線方向判定部と、を備えることを特徴とする。【選択図】図１
