Honda Motor Co., Ltd.

Dai Nippon Printing Co., Ltd.

Sunao Yamaguchi

Masashi Hiromitsu

Kenta Maruyama

Junya Obara

Takuma Minemura

A reflective screen including a lens layer having a Fresnel lens shape with a plurality of unit lenses and a reflective layer formed on the unit lenses to reflect light. The unit lenses protrude from a video source side to a back surface side in the thickness direction of the lens layer, the lens layer has a flat edge section where a portion of the back surface side serves as a flat surface, and h1min−h2>0 is satisfied, where h1min is the minimum height distance in the thickness direction of the lens layer from a position of the lens layer most on the video source side to a position of the unit lenses most on the back surface side, and h2 is the height which is the distance from the flat surface of the flat section to the position of the unit lenses most on the back surface side.

Reflective screen, reflective screen unit, and video display device

A reflective screen including a Fresnel lens-shaped lens layer having unit lenses and a reflective layer formed on the unit lenses for reflecting light. The unit lens protrudes from a video source side to a back surface side in the thickness direction of the lens layer. In the lens layer, a flat part having a flat surface f on the back surface side is formed at at least one end edge. In the thickness direction of the lens layer, a maximum lens height h1max of a lens height h1 that is the distance from a position closest to the video source side to a position closest to the back surface side, and a flat surface height h2 that is the distance from the position closest to the video source side of the unit lens to the flat surface f of the flat partsatisfy h2≥h1max.

A guidance device according to the present invention is installed in a movable body, the guidance device includes: an output device including a display device; an input device that receives an operation performed by an occupant of the movable body for starting each of a plurality of driving assistance functions installed in the movable body; and a guidance control device that determines whether the movable body is in a stopping period or in a traveling period, and allows the display device to display a video for explaining any one of the plurality of driving assistance functions when the movable body is in the stopping period.

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Tokyo, Japan

Sunao Yamaguchi