Patent ID: 9081184
Filing Date: 2015-07-14
Classification: B60K,G01J,G02B

Abstract:
1. A head-up display device for a vehicle which projects an image from a light transmission portion, the head-up display device comprising: a housing which has the light transmission portion; light emitting means for outputting laser light; scanning means for scanning the laser light from the light emitting means to generate the image; reflection means for reflecting the image generated by the scanning means to project the image outside the housing; angle adjustment means for adjusting the reflection means at a desired angle; test laser light output means for causing the light emitting means to output test laser light based on test laser light output data recorded in the recording means in advance after a start switch of the vehicle is turned on; light source state detection means for detecting a current value in the light emitting means or first light intensity, which is light intensity of the test laser light, when the light emitting means emits the test laser light; and invisible position holding means for controlling the angle adjustment means such that the position of the reflection means is an invisible position at which the test laser light is reflected inside the housing at least until a predetermined condition is established after the light emitting means outputs the test laser light.