US 12,331,909 B2
Lighting device
Makoto Hasegawa, Tokyo (JP); Nobuyuki Suzuki, Tokyo (JP); and Masafumi Okada, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Jun. 21, 2023, as Appl. No. 18/338,431.
Claims priority of application No. 2022-101734 (JP), filed on Jun. 24, 2022.
Prior Publication US 2023/0417396 A1, Dec. 28, 2023
Int. Cl. F21V 13/04 (2006.01); F21S 6/00 (2006.01); F21V 7/05 (2006.01); F21V 7/09 (2006.01); F21V 14/00 (2018.01); F21Y 115/10 (2016.01)
CPC F21V 13/04 (2013.01) [F21V 7/05 (2013.01); F21V 7/09 (2013.01); F21V 14/003 (2013.01); F21S 6/003 (2013.01); F21Y 2115/10 (2016.08)] 13 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a funnel shaped reflector including a first hole in which a light source is disposed, a second hole which emits light, and a reflecting curved surface connecting the first hole and the second hole with each other, a first direction being defined as a direction of a line connecting a center of the first hole and a center of the second hole with each other;
a reflection plate, being disposed to oppose to the second hole of the funnel shaped reflector, major surface of the reflection plate being tilted with a first angle with respect to the first direction; and
a liquid crystal lens including an incident surface and opposing to the reflection plate, a major surface of the incident surface being tilted to the major surface of the reflection plate with a second angle,
wherein light emitted from the funnel shaped reflector is reflected at the reflection plate, and is emitted from the liquid crystal lens.