Sensing systems and reflective optical element
AssigneeKabushiki Kaisha Toshiba
InventorsShinji Saito, Masatoshi Hirono, Kei Kaneko, Tsutomu Kakuno, Rei Hashimoto
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Abstract
According to one embodiment, a sensing system includes a reflective optical element, and an optical device. The reflective optical element includes a plurality of optical structures arranged along a first plane. The optical device includes an element face. The optical device is configured to perform a first operation and a second operation. The optical device is configured to emit infrared rays from the element face in the first operation. The optical device is configured to detect the infrared rays reflected by the reflective optical element and incident on the element face in the second operation.
Claims19
A sensing system, comprising:
- a reflective optical element including a plurality of optical structures arranged along a first plane;
- and
- an optical device including an element face, the optical device being configured to perform a first operation and a second operation, the optical device being configured to emit infrared rays from the element face in the first operation, and the optical device being configured to detect the infrared rays reflected by the reflective optical element and incident on the element face in the second operation, wherein:
- a first length of one of the plurality of optical structures is shorter than a second length of the element face,
- the first length is a length of the one of the plurality of optical structures along a first direction along the first plane, and
- the second length is a length of the element face along a second direction along the element face.
Dependencies are inferred from the claim text.