Image sensor system

Patent metadata

Field	Value
Publication number	US-11536650-B2
Application number	US-202016949157-A
Country	US
Kind code	B2
Filing date	Oct 15, 2020
Priority date	Oct 18, 2019
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

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 concentrate light from the light source with respect to a measurement target;
a collection component configured to receive light reflected or transmitted from the measurement target, wherein the collection component includes an array of at least two components,
wherein the concentrator component is one or more of:
attached to the light source, or
closer to the light source than the collection component;

a sensor, and
wherein the concentrator component has a rectangular conical geometry; and

a filter provided between the collection component and the sensor.

2. The optical sensor system of claim 1 , wherein the collection component comprises a plurality of collimated holes.

3. The optical sensor system of claim 1 , wherein the array comprises an array of optical tapers.

4. The optical sensor system of claim 1 , wherein the array comprises an array of optical light pipes.

5. The optical sensor system of claim 1 , wherein the light source comprises a phosphor light emitting diode (LED).

6. The optical sensor system of claim 1 , wherein the light source is configured to emit light in a wavelength range of 400 nm to 1000 nm.

7. The optical sensor system of claim 1 , wherein the light source comprises a plurality of light emitting diodes (LEDs), wherein a first LED, of the plurality of LEDs, is associated with a different spectral range than a second LED of the plurality of LEDs.

8. The optical sensor system of claim 1 , wherein the light source comprises a modulated light emitting diode.

9. The optical sensor system of claim 1 , wherein the concentrator component comprises a compound parabolic concentrator array.

10. The optical sensor system of claim 9 , wherein the compound parabolic concentrator array is a two-dimensional array.

11. A device, comprising:
a light source;
a compound parabolic concentrator (CPC) proximate to the light source and configured to concentrate light from the light source with respect to a measurement target,
wherein the CPC has a rectangular conical geometry;

a collection component including an array of at least two components configured to receive light reflected or transmitted from the measurement target, wherein the light is emitted via the CPC;
an optical sensor; and
a filter provided between the collection component and the optical sensor.

12. The device of claim 11 , wherein the CPC is a solid compound parabolic concentrator (CPC) with an external coating.

13. The device of claim 11 , wherein the CPC is a hollow compound parabolic concentrator (CPC) with a metal or dielectric internal coating.

14. The device of claim 11 , wherein the collection component comprises a two-dimensional array of optical light pipes.

15. The device of claim 11 , wherein the filter is spaced from the collection component.

16. A user device, comprising:
an optical sensor system, comprising:
a light source;
a compound parabolic concentrator (CPC) configured to concentrate light from the light source with respect to a measurement target,
wherein the CPC has a rectangular conical geometry; and

an array configured to receive light reflected or transmitted from the measurement target,
wherein the light is emitted via the CPC, and
wherein the CPC is one or more of:
attached to the light source, or
closer to the light source than the array.

17. The user device of claim 16 , wherein the array comprises a gold coated optical taper array.

18. The user device of claim 16 , further comprising:
a sensor; and
a filter provided between the array and the sensor,
wherein the filter is spaced from the array.

19. The user device of claim 16 , further comprising:
a sensor,
wherein the array comprises a different compound parabolic concentrator, and
wherein an aperture of the different compound parabolic concentrator is proximate to the sensor.

20. The user device of claim 16 , wherein the CPC is closer to the light source than the array.

Assignees

• Viavi Solutions Inc

Inventors

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

Classifications

• G02B27/0994

  Fibers, light pipes (optical fibers per se G02B6/02) · CPC title

• G01N21/474

  Details of optical heads therefor, e.g. using optical fibres · CPC title

• G02B19/0076

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

• G01N2201/0636

  Reflectors · CPC title

• G01N2201/08

  Optical fibres; light guides · CPC title