US 2022/0187130 A1 · OPTICAL DEVICE WITH A FOLDED OPTICAL PATH

Abstract

In some implementations, an optical device may include an aperture, one or more optical elements, an optical filter, and an optical sensor. The aperture may be configured to receive light. The one or more optical elements may be configured to diffuse the light received by the aperture, direct the diffused light to the optical filter via a folded optical path, wherein a length of the folded optical path is greater than a distance between the aperture and an input surface of the optical filter, and cause the diffused light to be distributed across the input surface of the optical filter. The optical filter may be configured to filter the diffused light distributed across the input surface of the optical filter to pass portions of the diffused light associated with one or more wavelengths to the optical sensor.

Claims20

Dependent claims

An optical device, comprising:

an aperture;
one or more optical elements;
an optical filter;
and
an optical sensor, wherein:
the aperture is configured to receive light;
the one or more optical elements are configured to:
diffuse the light received by the aperture,
direct the diffused light to the optical filter via a folded optical path,
wherein a length of the folded optical path is greater than a distance between the aperture and an input surface of the optical filter, and cause the diffused light to be distributed across the input surface of the optical filter;
and
the optical filter is configured to filter the diffused light distributed across the input surface of the optical filter to pass portions of the diffused light associated with one or more wavelengths to the optical sensor.

9 more elements

Dependencies are inferred from the claim text.

Optical device with a folded optical path

Life of this patent

Optical device with a folded optical path

Life of this patent

Abstract

Claims20