| abstract |
A vehicular lamp using a plurality of optical polarizers that scans excitation light with a reduced number of components is provided. A vehicular lamp 500 includes a wide optical unit 502 Wide, a middle optical unit 502 Mid, a hot optical unit 502 Hot, a video engine CPU 504, a storage device 506, a wavelength conversion member 18 (phosphor plate), a projection lens 20, and the like. It has. The video engine CPU 504 controls the excitation light sources 12Wide, 12Mid, and 12Hot and the three light polarizers 201Wide, 201Mid, and 201Hot of the three optical units so as to match the target luminance distribution, and the three excitation light sources and the three lights. At least one malfunction of the polarizer is detected. Multiple excitations so that a luminance distribution interpolating the luminance distribution that was in charge before the failure was detected by the optical polarizer or the optical polarizer corresponding to the excitation light source was formed on the wavelength conversion member. Control the light source and light polarizer. [Selection] Figure 46 |