Optical system device and moving body

Abstract

This invention provides an optical system device capable of illuminating light with adjusted intensity and angle. The optical system device is characterized by comprising: a light illuminating unit 11 capable of illuminating light; and a plurality of optical elements 12 for controlling the light from the light illuminating unit 11 and illuminating it at a predetermined angle, wherein at least two or more of the optical elements 12 have different angles. Here, the optical axis direction of the light illuminating unit 11 is defined as the z-direction, and the direction perpendicular to the optical axis is defined as the x-direction. When the optical elements 12 are sorted starting from the one with the larger x-direction angle, in the i-th (i is a natural number) optical element 12, if the illumination width in the x-direction at the position where the illuminance of the light illuminating the optical element 12 is a predetermined E is defined as Wxi, and the average value of the illumination widths of all optical elements 12 is defined as Wxavg, then preferably the following formula is satisfied: [Formula omitted for brevity].

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