Optical device

Patent metadata

Field	Value
Publication number	US-11913833-B2
Application number	US-202217807428-A
Country	US
Kind code	B2
Filing date	Jun 17, 2022
Priority date	Feb 13, 2019
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

An optical device may comprise an array of sensor elements and an array of optical channels disposed on the array of sensor elements. At least one optical channel of the array of optical channels may be configured to pass bandpass filtered light to at least one sensor element of the array of sensor elements. At least one other optical channel of the array of optical channels may be configured to pass non-bandpass filtered light to at least one other sensor element of the array of sensor elements.

First claim

What is claimed is:

1. An optical device comprising:
an array of sensor elements; and
an array of optical components including a bandpass filter component, a first broadband transparent component, and a second broadband transparent component,
wherein the bandpass filter component has a bandpass filter coating,
wherein the first broadband transparent component includes an anti-reflection coating and does not include a bandpass filter coating,
wherein the first broadband transparent component has a first optical density level and is configured to pass first non-bandpass filtered light to a first sensor element of the array of sensor elements, and
wherein the second broadband transparent component has a second optical density level, different than the first optical density level, and is configured to pass second non-bandpass filtered light to a second sensor element of the array of sensor elements.

2. The optical device of claim 1 , wherein the array of optical components is coextensive with the array of sensor elements.

3. The optical device of claim 1 ,
wherein the second broadband transparent component does not include a bandpass filter coating.

4. The optical device of claim 1 ,
wherein the second broadband transparent component includes an anti-reflection coating and does not include a bandpass filter coating.

5. The optical device of claim 1 ,
wherein the first broadband transparent component further includes a broadband transparent coating.

6. The optical device of claim 1 , wherein the first broadband transparent component is a broadband transparent channel.

7. The optical device of claim 1 , wherein
the array of sensor elements comprises a first quantity of sensor elements, and
the array of optical components comprises a second quantity of optical components that is less than the first quantity.

8. A system, comprising:
an array of sensor elements; and
a multispectral filter including a bandpass filter component, a first broadband transparent component, and a second broadband transparent component,
wherein the bandpass filter component has a bandpass filter coating,
wherein the first broadband transparent component includes an anti-reflection coating and does not include a bandpass filter coating,
wherein the first broadband transparent component has a first optical density level and is configured to pass first non-bandpass filtered light to a first sensor element of the array of sensor elements, and
wherein the second broadband transparent component has a second optical density level, different than the first optical density level, and is configured to pass second non-bandpass filtered light to a second sensor element of the array of sensor elements.

9. The system of claim 8 , wherein
the multispectral filter includes a quantity of optical components that corresponds to a quantity of sensor elements in the array of sensor elements, and
the quantity of optical components includes the bandpass filter component, the first broadband transparent component, and the second broadband transparent component.

10. The system of claim 8 , wherein the first broadband transparent component is a broadband transparent channel.

11. The system of claim 8 ,
wherein the second broadband transparent component does not include a bandpass filter coating.

12. The system of claim 8 ,
wherein the second broadband transparent component includes an anti-reflection coating.

13. The system of claim 8 , wherein the first broadband transparent component is a portion of a substrate.

14. The system of claim 8 , wherein the second broadband transparent component includes an anti-reflection coating and does not include a bandpass filter coating.

15. A multispectral filter, comprising:
a bandpass filter component having a bandpass filter coating,
a first broadband transparent component having a first optical density level and is configured to pass first non-bandpass filtered light to a first sensor element of an array of sensor elements,
wherein the first broadband transparent component includes an anti-reflection coating and does not include a bandpass filter coating; and

a second broadband transparent component having a second optical density level, different than the first optical density level, and is configured to pass second non-bandpass filtered light to a second sensor element of the array of sensor elements.

16. The multispectral filter of claim 15 , wherein the first broadband transparent component further comprises at least one of:
a portion of a substrate, or
a broadband transparent coating.

17. The multispectral filter of claim 15 , wherein the first non-bandpass filtered light includes light within a spectral range that is greater than approximately 10 nanometers.

18. The multispectral filter of claim 15 ,
wherein the bandpass filter component is configured to pass bandpass filtered light to a third sensor element of the array of sensor elements.

19. The multispectral filter of claim 18 , wherein the bandpass filtered light includes light within a spectral range of approximately 2 nanometers to approximately 10 nanometers.

20. The multispectral filter of claim 18 , wherein a spectral range of the first non-bandpass filtered light is wider than a spectral range of the bandpass filtered light.

Assignees

• Viavi Solutions Inc

Inventors

• Smith Valton
• Houck William D

Classifications

• G01J3/0229 Primary

  using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters · CPC title

• G01J3/2803 Primary

  using photoelectric array detector · CPC title

• G02B1/11

  Anti-reflection coatings · CPC title

• G01J2003/2806

  Array and filter array · CPC title

• G01J2003/2826

  Multispectral imaging, e.g. filter imaging · CPC title