Patent ID: 8748858
Filing Date: 2014-06-10
Classification: G06F

Abstract:
1. An optical detection device comprising: a first light source section and a second light source section each adapted to emit an irradiation light beam; a reference light source section adapted to emit an irradiation reference light beam; a light receiving section adapted to receive the irradiation light beams reflected by an object, the light receiving section adapted to receive the irradiation reference light beam directly from the reference light source section; a control section adapted to perform emission control of the first light source section, the second light source section, and the reference light source section based on a light reception result of the light receiving section; and a determination section adapted to determine a positional relationship of the object with respect to the first light source section and the second light source section based on emission current control information for performing the emission control, wherein the determination section determines the positional relationship between the first and second light source sections and the object based on first period emission current control information as the emission current control information in a first period in which the object fails to exist in a detection area as an area where the object is detected and second period emission current control information as the emission current control information in a second period in which the object exists in the detection area.