US 12,351,104 B2
Vehicle drawing device
Yuichi Shibata, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Filed on May 8, 2024, as Appl. No. 18/658,024.
Application 18/658,024 is a continuation of application No. 17/640,436, granted, now 11,999,286, previously published as PCT/JP2020/030562, filed on Aug. 11, 2020.
Claims priority of application No. 2019-163835 (JP), filed on Sep. 9, 2019.
Prior Publication US 2024/0286543 A1, Aug. 29, 2024
Int. Cl. B60Q 1/38 (2006.01)
CPC B60Q 1/38 (2013.01) [B60Q 1/381 (2022.05); B60Q 2400/50 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A vehicle drawing device that draws a figure on a road surface with a light,
wherein, when a luminance of the figure is assumed as a road surface drawing luminance, and a luminance in a surrounding environment of a driving vehicle is assumed as a background luminance, the light is irradiated such that a luminance contrast calculated by the road surface drawing luminance and the background luminance is 0.2 or more,
an angle formed by an inclination direction at a tip end of the figure with respect to a light irradiation direction is less than 120 degrees,
the irradiation of the light that draws the figure is started at the same timing as the start of the light irradiated from a turn signal lamp,
the light that draws the figure is irradiated in a flickering state or a sequential state same as the light irradiated from the turn signal lamp, and
when the light that draws the figure is irradiated in the flickering state, the flickering frequency is set to approximately 1 Hz to 2 Hz.