Light detection device including light detector, light coupling layer, and light shielding film, light detection system, and optical device
First Claim
1. A light detection system comprising:
- a light detection device; and
a light source,the light detection device including;
a light detector that has a main surface and includes at least one first detector and at least one second detector that are disposed along the main surface;
a light coupling layer disposed on or apart from the light detector, the light coupling layer including;
a first low-refractive-index layer,a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, anda second low-refractive-index layer that is disposed on the first high-refractive-index layer,the first high-refractive-index layer having a higher refractive index than the first low-refractive-index layer and the second low-refractive-index layer; and
a light shielding film disposed on the light coupling layer, the light shielding film including;
at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region,wherein the first high-refractive-index layer is disposed between the light detector and the light shielding film.
1 Assignment
0 Petitions
Accused Products
Abstract
A light detection device according to one aspect of the present disclosure includes: a light detector having a main surface and including at least one first detector and at least one second detector disposed along the main surface; a light coupling layer disposed on or apart from the light detector and including a first low-refractive-index layer, a first high-refractive-index layer disposed on the first low-refractive-index layer and including a first grating, and a second low-refractive-index layer disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first and second low-refractive-index layers; and a light shielding film disposed on the light coupling layer and including at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region.
7 Citations
23 Claims
-
1. A light detection system comprising:
-
a light detection device; and a light source, the light detection device including; a light detector that has a main surface and includes at least one first detector and at least one second detector that are disposed along the main surface; a light coupling layer disposed on or apart from the light detector, the light coupling layer including; a first low-refractive-index layer, a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, and a second low-refractive-index layer that is disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first low-refractive-index layer and the second low-refractive-index layer; and a light shielding film disposed on the light coupling layer, the light shielding film including; at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region, wherein the first high-refractive-index layer is disposed between the light detector and the light shielding film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A light detection device comprising:
-
a light detector that has a main surface and includes at least one first detector and at least one second detector that are disposed along the main surface; a light coupling layer disposed on or apart from the light detector, the light coupling layer including; a first low-refractive-index layer, a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, and a second low-refractive-index layer that is disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first low-refractive-index layer and the second low-refractive-index layer; and a light shielding film disposed on the light coupling layer, the light shielding film including; at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region, wherein the first high-refractive-index layer is disposed between the light detector and the light shielding film. - View Dependent Claims (15, 16, 17, 18, 19)
-
-
20. An optical device comprising:
-
a light coupling layer including; a first low-refractive-index layer, a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, and a second low-refractive-index layer that is disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first low-refractive-index layer and the second low-refractive-index layer; and a light shielding film disposed on the light coupling layer, the light shielding film including; at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region, wherein the at least one light transmitting region includes two light transmitting regions disposed adjacent to one of the at least one light shielding region, and the first grating overlaps both of the two light transmitting regions in a thickness direction of the light coupling layer. - View Dependent Claims (21)
-
-
22. A light detection device comprising:
-
a light detector that has a main surface and includes at least one first detector and at least one second detector that are disposed along the main surface; a light coupling layer disposed on or apart from the light detector, the light coupling layer including; a first low-refractive-index layer, a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, and a second low-refractive-index layer that is disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first low-refractive-index layer and the second low-refractive-index layer; and a light shielding film disposed on the light coupling layer, the light shielding film including; at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region, the at least one light transmitting region overlaps at least a portion of the at least one first detector in a thickness direction of the light detection device, and the at least one light shielding region overlaps at least a portion of the at least one second detector in the thickness direction.
-
-
23. A light detection system comprising:
-
a light detection device; and a light source, the light detection device including; a light detector that has a main surface and includes at least one first detector and at least one second detector that are disposed along the main surface; a light coupling layer disposed on or apart from the light detector, the light coupling layer including; a first low-refractive-index layer, a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, and a second low-refractive-index layer that is disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first low-refractive-index layer and the second low-refractive-index layer; and a light shielding film disposed on the light coupling layer, the light shielding film including; at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region, the at least one light transmitting region overlaps at least a portion of the at least one first detector in a thickness direction of the light detection device, and the at least one light shielding region overlaps at least a portion of the at least one second detector in the thickness direction.
-
Specification