US 2026/0016679 A1 · OPTICAL ELEMENT, OPTICAL SYSTEM, AND OPTICAL DEVICE

Abstract

An optical element includes a first face having a first reflecting region where a part of a light flux incident from a predetermined direction is reflected in a first direction, and a first non-optical region where the light flux is not incident, a second face having a second reflecting region where another part of the light flux incident from the predetermined direction is reflected in a second direction different from the first direction, and a third face connecting the first non-optical region and the second reflecting region. The first non-optical region and the third face form an acute angle outside the optical element. The second reflecting region and the third face form an acute angle inside the optical element.

Claims20

Dependent claims

An optical element comprising:

a first face having a first reflecting region where a part of a light flux incident from a predetermined direction is reflected in a first direction, and a first non-optical region where the light flux is not incident;
a second face having a second reflecting region where another part of the light flux incident from the predetermined direction is reflected in a second direction different from the first direction;
and
a third face connecting the first non-optical region and the second reflecting region,
wherein the first non-optical region and the third face form an acute angle outside the optical element, and
the second reflecting region and the third face form an acute angle inside the optical element.

3 more elements

An optical system that splits an incident light flux, the optical system comprising:

a slice mirror including a first face having a first reflecting region where a part of the light flux is reflected in a first direction, a second face having a second reflecting region where another part of the light flux is reflected in a second direction different from the first direction, and a third face connecting the first face and the second face,
wherein in the slice mirror,
a region closer to the second face than the first reflecting region in the first face is hidden by a shadow of a portion defined by the second face and the third face, and is not irradiated with a light flux incident from a predetermined direction, and
the first reflecting region and the second reflecting region are arranged to be irradiated with the light flux incident from the predetermined direction.

1 more element

Dependencies are inferred from the claim text.

Optical element, optical system, and optical device

Life of this patent

Optical element, optical system, and optical device

Life of this patent

Abstract

Claims20