US 12,135,115 B1
Smart projection vehicle lamp
Kuo-Yin Huang, Taichung (TW); Ke-Peng Chang, Taichung (TW); Chih-Feng Wang, Taichung (TW); Hsin-An Chen, Taichung (TW); and Yung-Peng Chang, Taichung (TW)
Assigned to TAIWAN COLOR OPTICS, INC., Taichung (TW)
Filed by TAIWAN COLOR OPTICS, INC., Taichung (TW)
Filed on Mar. 22, 2024, as Appl. No. 18/614,306.
Claims priority of application No. 112148658 (TW), filed on Dec. 14, 2023.
Int. Cl. F21V 9/30 (2018.01); F21S 41/176 (2018.01); F21S 41/25 (2018.01); F21S 41/675 (2018.01)
CPC F21S 41/675 (2018.01) [F21S 41/176 (2018.01); F21S 41/25 (2018.01)] 10 Claims
OG exemplary drawing
 
1. A smart projection vehicle lamp having a lens optical axis, comprising:
a plurality of laser light sources;
a plurality of two-dimensional micro-electromechanical system (MEMS) mirrors correspondingly arranged on paths of a plurality of laser light beams of the plurality of laser light sources, wherein the plurality of laser light beams are dynamically reflected by the plurality of two-dimensional MEMS mirrors;
a plurality of focusing lenses configured to converge the plurality of laser light beams reflected by the plurality of two-dimensional MEMS mirrors;
a reflective phosphor plate having a phosphor layer and a reflective layer, wherein the reflective layer is located on one side of the phosphor layer;
a narrow-band blue light reflector disposed between the plurality of focusing lenses and the reflective phosphor plate, wherein the narrow-band blue light reflector is configured to reflect blue wavelength light in the laser light source while allowing part of visible light to pass through the narrow-band blue light reflector, and the plurality of laser light beams that are converged are reflected by the narrow-band blue light reflector to illuminate the reflective phosphor plate; wherein the plurality of laser light beams excite the phosphor layer and are mixed into visible light, and the visible light is reflected by the reflective layer of the reflective phosphor plate to pass through the narrow-band blue light reflector; and
a lens group, wherein the narrow-band blue light reflector is disposed between the lens group and the reflective phosphor plate.