Vehicle lamp with controlling unit and reflective body

A vehicle lamp, comprising:

• a first lamp unit capable of illuminating a first illumination region;
• a second lamp unit capable of illuminating a second illumination region;
• and
• a controlling unit that controls the first lamp unit and the second lamp unit, wherein
• the first lamp unit includes a light source, a driving unit, and a reflective body that is driven by the driving unit to repeat a periodic motion and thus scans an exit beam from the light source, and
• the controlling unit instructs that the driving unit be driven until a first duration has passed even in a case where the controlling unit has received an illumination instruction instructing the first lamp unit and the second lamp unit to emit a beam and then received a stop instruction instructing the first lamp unit and the second lamp unit to stop emitting a beam.

A vehicle lamp, comprising:

• a light source;
• an optical system that repeats a periodic motion and thus scans an exit beam from the light source;
• and
• a controlling unit that controls on/off of the light source to form a predetermined light distribution pattern, wherein
• the controlling unit
• sets a brightness of the light source to no higher than a predetermined value in a partial time segment within one scan period and thus forms a non-illumination region in a region corresponding to the partial time segment, and
• when the non-illumination region is to be changed over to an illumination region, starts changing the non-illumination region over to the illumination region from one end and changes gradually toward another end of the non-illumination region in a widthwise direction of the vehicle to reduce a size of the non-illumination region, wherein
• the controlling unit, when the non-illumination region is to be changed over to the illumination region, starts changing the non-illumination region over to the illumination region from, of two ends of the non-illumination region in the vehicle-width direction, only one end that is closer to a center portion of the light distribution pattern and changes gradually toward another end that is farther from the center portion.

A vehicle lamp, comprising:

• a lamp unit that includes a first light emitting unit, a second light emitting unit, and an optical system that repeats a periodic motion and thus scans an exit beam from the first light emitting unit and an exit beam from the second light emitting unit;
• and
• a controlling unit that sets an on period separately for each of the first light emitting unit and the second light emitting unit within one scan period in synchronization with the periodic motion and thus forms a light distribution pattern in which respective scan beams associated with the first light emitting unit and the second light emitting unit are combined, wherein
• the controlling unit varies the on period, from one scan period to a subsequent scan period, of at least one of the first light emitting unit and the second light emitting unit and thus changes a luminous intensity distribution of the light distribution pattern, wherein
• the controlling unit keeps at least one of the first light emitting unit and the second light emitting unit turned off for an entire scan period at a predetermined proportion of repeated scans and thus adjusts a luminous intensity of a combined light distribution pattern.

A vehicle lamp, comprising:

• a lamp unit that forms a light distribution pattern in front of a vehicle;
• and
• a controlling unit that controls the lamp unit to allow the light distribution pattern to have a non-illumination region that is adapted for a vehicle in front of the vehicle and that has a luminous intensity no higher than a predetermined value, wherein
• the controlling unit controls the lamp unit to cause a horizontal illumination region of the light distribution pattern to have a transition region, located in the vicinity of a boundary with the non-illumination region, that has a luminous intensity decreasing toward the non-illumination region and reaching a predetermined value at an end portion in the non-illumination region and to cause a level of change of the luminous intensity in the transition region to vary as a distance between a host vehicle and the vehicle in front of the host vehicle is smaller, wherein
• in a case where the illumination region is to be formed on each of right and left sides of the non-illumination region corresponding to the vehicle in front of the host vehicle, (i) when the vehicle in front of the host vehicle is traveling along a left curve as viewed from the vehicle in front of the host vehicle, the controlling unit controls the lamp unit to cause the luminous intensity in the transition region of the illumination region that is, of the two illumination regions, on the left as viewed from the host vehicle to have a smaller change than a change in luminous intensity in the transition region of the illumination region that is on the right side as viewed from the host vehicle, or (ii) when the vehicle in front of the host vehicle is traveling along a right curve as viewed from the vehicle in front of the host vehicle, the controlling unit controls the lamp unit to cause the luminous intensity in the transition region of the illumination region that is, of the two illumination regions, on the right side as viewed from the host vehicle to have a smaller change than a change in luminous intensity in the transition region of the illumination region that is on the left side as viewed from the host vehicle.

A vehicle lamp, comprising:

• a lamp unit that forms a light distribution pattern in front of a vehicle;
• and
• a controlling unit that controls the lamp unit to allow the light distribution pattern to have a non-illumination region that is adapted for a vehicle in front of the vehicle and that has a luminous intensity no higher than a predetermined value, wherein
• the controlling unit controls the lamp unit to cause a horizontal illumination region of the light distribution pattern to have a transition region, located in the vicinity of a boundary with the non-illumination region, that has a luminous intensity decreasing toward the non-illumination region and reaching a predetermined value at an end portion in the non-illumination region and to cause a level of change of the luminous intensity in the transition region to vary as a distance between a host vehicle and the vehicle in front of the host vehicle is smaller, wherein
• the lamp unit includes a light source and a reflective body that repeats a periodic motion and thus scans an exit beam from the light source, and
• the controlling unit sets a brightness of the light source to no higher than a predetermined value in a partial time segment within one scan period and thus forms a non-illumination region in a region corresponding to the partial time segment.