Matrix lighting device for vehicle
The present disclosure provides a matrix lighting device for a vehicle, including a light source module, a projection lens, a projection emergent space, and a projection image plane arranged successively along an optical axis direction; the light source module comprises a light source array unit, a light shield array unit and a light receiving lens array unit arranged successively along the optical axis direction; the light source array unit includes a plurality of light sources which are independently controlled and arranged in a matrix; the light shield array unit includes a plurality of light shields arranged in a matrix and disposed outside each light source; the light receiving lens array unit includes a plurality of light receiving lenses arranged in a matrix and disposed opposite to each light source along the optical axis direction.
1. A matrix lighting device for a vehicle, comprising a light source module ( 2 ), a projection lens ( 3 ), a projection emergent space ( 4 ), and a projection image plane ( 5 ) arranged successively along an optical axis direction ( 1 ), wherein
the light source module ( 2 ) comprises a light source array unit ( 21 ), a light shield array unit ( 22 ) and a light receiving lens array unit ( 23 ) arranged successively along the optical axis direction ( 1 ), wherein
the light source array unit ( 21 ) includes a plurality of light sources ( 211 ) which are independently controlled and arranged in a matrix,
the light shield array unit ( 22 ) includes a plurality of light shields ( 221 ) arranged in a matrix and disposed outside each light source ( 211 ),
the light receiving lens array unit ( 23 ) includes a plurality of light receiving lenses ( 231 ) arranged in a matrix and disposed opposite to each light source ( 211 ) along the optical axis direction ( 1 );
a light emitted by the light source ( 211 ) in the light source array unit ( 21 ) successively passes through the light receiving lens ( 231 ), the projection lens ( 3 ) and the projection emergent space ( 4 ) along the optical axis direction ( 1 ), and forms a matrix light distribution ( 6 ) on the projection image plane ( 5 ).
2. The matrix lighting device for a vehicle according to claim 1 , wherein the projection lens ( 3 ) comprises a first lens ( 31 ) and a second lens ( 32 ) arranged successively along the optical axis direction ( 1 ), and a refractive index and a dispersion coefficient of the first lens ( 31 ) and the second lens ( 32 ) are all different.
3. The matrix lighting device for a vehicle according to claim 2 , wherein a material of the first lens ( 31 ) and the second lens ( 32 ) includes PMMA, PC, or glass.
4. The matrix lighting device for a vehicle according to claim 1 , wherein the light source ( 211 ) comprises
a semiconductor light source, or
a semiconductor laser and an optical conversion element, or
a solid-state laser and the optical conversion element.
5. The matrix lighting device for a vehicle according to claim 1 , wherein the light receiving lens ( 231 ) includes a Fresnel lens.
6. The matrix lighting device for a vehicle according to claim 1 , wherein the light shield array unit ( 22 ) and the light receiving lens array unit ( 23 ) are molded or injection molded into one piece.
7. The matrix lighting device for a vehicle according to claim 6 , wherein a material of the light receiving lens array unit ( 23 ) includes silicone, PC, PMMA, or glass.
8. The matrix lighting device for a vehicle according to claim 6 , wherein the light shield array unit ( 22 ) is made of a non-transparent material.
9. The matrix lighting device for a vehicle according to claim 6 , wherein the light shield array unit ( 22 ) comprises
a base body made of a transparent material, and
a light blocking layer made of black paint sprayed on a surface of the base body.
10. The matrix lighting device for a vehicle according to claim 1 , wherein a material of the light receiving lens array unit ( 23 ) includes silicone, PC, PMMA, or glass.
11. The matrix lighting device for a vehicle according to claim 1 , wherein the light shield array unit ( 22 ) is made of a non-transparent material.
12. The matrix lighting device for a vehicle according to claim 1 , wherein the light shield array unit ( 22 ) comprises
a base body made of a transparent material, and
a light blocking layer made of black paint sprayed on a surface of the base body.