Curved pattern marker and optical tracking device including marker
AssigneeKoh Young Technology Inc.
InventorJong Kyu HONG
Life of this patent
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Abstract
A technical concept of the present invention provides: a curved pattern marker capable of improving the precision of position detection and reducing size; and an optical tracking device including the marker. The marker comprises: a first lens unit, which has at least one lens having an incident surface, emits incident light within a target range, and is formed such that a light parallel to an optical axis among the incident light is vertically incident on the incident surface; a pattern unit having a curved pattern formed therein; and a second lens unit arranged between the first lens unit and the pattern unit, and adjusting the light emitted from the first lens unit such that the light is focused on the curved pattern.
Claims18
A curved pattern marker comprising:
- a first lens unit including at least one lens having an incident surface and configured to emit incident light within a target range, the first lens unit being formed such that a light parallel to an optical axis among the incident light is perpendicularly incident on the incident surface;
- a pattern unit having a curved pattern formed therein;
- and
- a second lens unit disposed between the first lens unit and the pattern unit, and configured to adjust the light emitted from the first lens unit such that the light emitted from the first lens unit is focused on the curved pattern.
18-27. (canceled)
Dependencies are inferred from the claim text.