Visual line detection device
AssigneeKabushiki Kaisha Toshiba
InventorTakehiro Hori
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a visual line detection device comprises a lens, a frame holding the lens, a beam splitter transmitting light from a visual field in a direction of user's eyes while reflecting a part of the light from the visual field in a direction substantially parallel to a surface of the lens, and transmitting the light from the user's eyes in a direction of the visual field while reflecting the part of the light from the user's eyes in the direction substantially parallel to the surface of the lens, a first light taking module taking the light from the user's eyes reflected by the beam splitter, and a second light taking module taking the light from the visual field reflected by the beam splitter.
Claims8
A visual line detection device comprising:
- a lens;
- a frame configured to hold the lens;
- a beam splitter inside the lens, configured to transmit light from a visual field in a direction of eyes of a user while reflecting a part of the light from the visual field in a direction substantially parallel to a surface of the lens, and transmit the light from the eyes of the user in a direction of the visual field while reflecting the part of the light from the eyes of the user in the direction substantially parallel to the surface of the lens;
- a first light taking module in the vicinity of the periphery of the lens in the frame, configured to take the light from the eyes of the user reflected by the beam splitter;
- and
- a second light taking module in the vicinity of the periphery of the lens in the frame, configured to take the light from the visual field reflected by the beam splitter.
A method comprising:
- transmitting light from a visual field in a direction of eyes of a user while reflecting a part of the light from the visual field in a direction substantially parallel to a surface of a lens, using a beam splitter inside the lens;
- transmitting the light from the eyes of the user in a direction of the visual field while reflecting the part of the light from the eyes of the user in the direction substantially parallel to the surface of the lens, using the beam splitter;
- taking the light fro the eyes of the user reflected by the beam splitter, using a first light taking module in the vicinity of the periphery of the lens in the frame;
- and
- taking the light from the visual field reflected by the beam splitter, using a second light taking module in the vicinity of the periphery of the lens in the frame.
Dependencies are inferred from the claim text.