Abstract: To provide a vehicular lamp system and a vehicular lamp which can reduce a replacement frequency of the vehicular lamp. The vehicular lamp system includes a vehicular lamp having a plurality of elements capable of irradiating a corresponding irradiation region with light and a detection unit that detects presence or absence of an abnormality in the plurality of elements, and a notification unit that notifies abnormality information concerning occurrence of an abnormality when the abnormality is detected in a target element capable of irradiating a predetermined irradiation region with light among the plurality of elements.

Abstract: A light source unit includes: a light source part that emits excitation light; a light emitting part that emits generated light by being irradiated with the excitation light; a support part that guides the excitation light to the light emitting part while supporting the light emitting part; and a reflective part provided on a back surface of the support part, the back surface being on a side opposite to an emission direction of the generated light.

Abstract: A vehicle indication device includes: a road surface drawing unit mounted on a vehicle and configured to draw one or more notification indications by light on a road surface in a direction of travel of the vehicle; and a control unit configured to, when a turn signal of the vehicle is on, cause the road surface drawing unit to either draw the one or more notification indications in a first color on the road surface or turn off display of the one or more notification indications in a case where the vehicle gives way to a pedestrian, and cause the road surface drawing unit to draw the one or more notification indications in a second color different from the first color on the road surface in a case different from the case where the vehicle gives way to a pedestrian.

Abstract: A light source unit includes: a light source part that emits excitation light; a light emitting part that emits generated light by being irradiated with the excitation light; a support part that guides the excitation light to the light emitting part while supporting the light emitting part; and a reflective part provided on a back surface of the support part, the back surface being on a side opposite to an emission direction of the generated light.