Lamp system, lamp control method, lamp control program, and vehicle
AssigneeStanley Electric Co., Ltd.
InventorHideo Otsuka
Life of this patent
Estimating the term…
Abstract
Light from a headlight is prevented from being diffusely reflected on a road surface and reaching an oncoming vehicle. Provided is a lamp control method of controlling a lamp including a lamp unit that projects light over a predetermined range and a driver that turns on and turns off or dims a light projection range of the lamp unit in predetermined units. The lamp control method includes a step of obtaining a reflection region on a road surface where the light projected from the lamp unit is regularly and diffusely reflected by the road surface and reaches a driver of an oncoming vehicle or a preceding vehicle, and a step of controlling the driver so that the light projected onto the reflection region from the lamp unit is turned off or dimmed.
Claims12
A lamp system comprising:
- a lamp unit that projects light over a predetermined range;
- a driver that turns on and turns off or dims a light projection range of the lamp unit in predetermined units;
- and
- a control unit that controls the driver, wherein
- the control unit obtains a reflection region on a road surface where the light projected from the lamp unit is regularly and diffusely reflected by the road surface and reaches a driver of an oncoming vehicle or a preceding vehicle, and controls the driver so that the light projected onto the reflection region from the lamp unit is turned off or dimmed, wherein
- the control unit processes an image obtained by capturing the oncoming vehicle or the preceding vehicle to obtain grounding positions of front wheels of the oncoming vehicle or grounding positions of rear wheels of the preceding vehicle, sets a predetermined range on the road surface from the grounding positions as the reflection region, and turns off or dims the light projected onto the reflection region from the lamp unit.
A lamp system comprising:
- a lamp unit that projects light over a predetermined range;
- a driver that turns on and turns off or dims a light projection range of the lamp unit in predetermined units;
- and
- a control unit that controls the driver, wherein
- the control unit obtains a reflection region on a road surface where the light projected from the lamp unit is regularly and diffusely reflected by the road surface and reaches a driver of an oncoming vehicle or a preceding vehicle, and controls the driver so that the light projected onto the reflection region from the lamp unit is turned off or dimmed, wherein
- the lamp unit includes a phosphor that emits fluorescence when seamlessly scanned with laser light vertically and horizontally, the phosphor has a phosphor region for emitting a high beam and a phosphor region for emitting a low beam,
- a plurality of areas for realizing light emission, which are arranged vertically in a row, are set for each row in the phosphor region for emitting a low beam, and
- the driver turns on and turns off or dims the light projection range with the area as the unit.
Dependencies are inferred from the claim text.