Image sensor system

Patent metadata

Field	Value
Publication number	US-12092572-B2
Application number	US-202218067216-A
Country	US
Kind code	B2
Filing date	Dec 16, 2022
Priority date	Oct 18, 2019
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

An optical sensor system may include a light source. The optical sensor system may include a concentrator component proximate to the light source and configured to concentrate light from the light source with respect to a measurement target. The optical sensor system may include a collection component that includes an array of at least two components configured to receive light reflected or transmitted from the measurement target. The optical sensor system may include may a sensor. The optical sensor system may include a filter provided between the collection component and the sensor.

First claim

What is claimed is:

1. An optical sensor system, comprising:
a light source;
a concentrator component configured to direct light from the light source toward a measurement target;
a collection component configured to receive light reflected or transmitted from the measurement target,
wherein the light source is separate from the collection component, and
wherein the concentrator component is closer to the light source than the collection component;
a barrier,
wherein the collection component includes an array of components and is on a first side of the barrier, and
wherein the concentrator component is on a second side of the barrier; and
a sensor.

2. The optical sensor system of claim 1 , further comprising:
a filter between the collection component and the sensor.

3. The optical sensor system of claim 1 , wherein the concentrator component is attached to the light source.

4. The optical sensor system of claim 1 , wherein the array of components includes one or more of:
an array of compound parabolic concentrators (CPCs),
an array of optical tapers, or
an array of light pipes.

5. The optical sensor system of claim 1 , wherein the concentrator component includes a compound parabolic concentrator (CPC).

6. The optical sensor system of claim 5 , wherein the CPC is a solid compound parabolic concentrator with an external coating.

7. The optical sensor system of claim 5 , wherein the CPC is a hollow compound parabolic concentrator with an internal coating, and
wherein the internal coating comprises one or more of a metal coating or a dielectric coating.

8. The optical sensor system of claim 1 , wherein the barrier is further between the light source and the sensor.

9. The optical sensor system of claim 1 , further comprising:
a substrate,
wherein the light source is between the substrate and the concentrator component, and
wherein the sensor is between the substrate and the collection component.

10. The optical sensor system of claim 1 , wherein the light source is on the second side of the barrier.

11. The optical sensor system of claim 1 , wherein the sensor is on the first side of the barrier.

12. The optical sensor system of claim 1 , wherein the light source is a phosphor light emitting diode (LED) or a modulated LED.

13. A system, comprising:
a light source;
a concentrator component;
a collection component that includes an array of compound parabolic concentrators (CPCs),
wherein the light source is separate from the array of CPCs, and
wherein the concentrator component is closer to the light source than the array of CPCs; and
a barrier,
wherein the collection component is on a first side of the barrier, and
wherein the concentrator component is on a second side of the barrier.

14. The system of claim 13 , wherein the array of CPCs is a two-dimensional array of CPCs.

15. The system of claim 13 , wherein the concentrator component is configured to direct light from the light source toward a measurement target.

16. A user device, comprising:
an optical sensor system, comprising:
a light source;
a concentrator component configured to direct light from the light source toward a measurement target;
a collection component configured to receive light reflected or transmitted from the measurement target,
wherein the light source is separate from the collection component, and
wherein the concentrator component is closer to the light source than the collection component; and
a barrier,
wherein the collection component includes an array of components and is on a first side of the barrier, and
wherein the concentrator component is on a second side of the barrier.

17. The user device of claim 16 , wherein the concentrator component is attached to the light source.

18. The user device of claim 16 , wherein the array of components includes a two-dimensional array of compound parabolic concentrators (CPCs).

19. The user device of claim 16 ,
wherein the light source is on the second side of the barrier.

20. The user device of claim 16 , wherein the optical sensor system further comprises:
a sensor; and
a filter between the sensor and the collection component.

Assignees

• Viavi Solutions Inc

Inventors

• Hruska Curtis R
• Houck William D
• Smith Valton
• Von Gunten Marc K
• Demilo Chuck

Classifications

• G02B19/0076

  for use with a detector (G02B19/009, G02B19/0095 take precedence) · CPC title

• G01N2201/063

  Illuminating optical parts · CPC title

• G01N2201/0625

  Modulated LED · CPC title

• G01N2201/08

  Optical fibres; light guides · CPC title

• G02B19/0066

  in the form of an LED array · CPC title