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US 11,538,334 B2Granted
Head-up display device
AssigneeNippon Seiki Co., Ltd.
InventorMaiko Saito
Life of this patent
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Abstract
The present invention enables recognition of traffic light lamp color in place of or in addition to simply displaying the traffic light lamp color in a color image. A projection unit projects, towards a part subject to projection, display light L that can display an image at a variable display distance. A lamp color information acquisition unit acquires a lamp color of a traffic light which a vehicle will be driving through. A display distance adjustment unit changes the display distance of the image based on the lamp color acquired by an information acquisition unit.
Claims5
A head-up display device, comprising:
- a projection unit configured to project, towards a projected portion, display light displaying an image at a variable display distance from a viewer;
- a lamp color information acquisition unit configured to acquire a lamp color state of a traffic light which a vehicle is scheduled to pass;
- a display distance adjustment unit configured to change the display distance of the image, based on the lamp color state acquired by the information acquisition unit;
- and
- a distance information acquisition unit configured to acquire a distance to the traffic light of which the lamp color state is acquired by the lamp color information acquisition unit, wherein
- the display distance adjustment unit refers to the distance to the traffic light acquired by the distance information acquisition unit, wherein
- if the lamp color state acquired by the lamp color information acquisition unit is a first lamp color state, the display distance adjustment unit sets the display distance less than the distance to the traffic light and displays at least a part of the image to be visually recognized in front of the traffic light, and wherein
- if the lamp color state acquired by the lamp color information acquisition unit is a second lamp color state, the display distance adjustment unit sets the display distance greater than the distance to the traffic light and displays at least a part of the image to be visually recognized behind the traffic light.
5 more elements
Dependencies are inferred from the claim text.