retroreflective disc target

By employing a multi-layered retroreflective marker in the optical tracking system, the problem of inaccurate light reflection in the optical tracking system was solved, achieving high-precision optical navigation and contaminant resistance, and improving the system's signal accuracy.

CN115524710BActive Publication Date: 2026-07-17NORTHERN DIGITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHERN DIGITAL
Filing Date
2022-06-24
Publication Date
2026-07-17

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Abstract

A retroreflective marker includes a bare retroreflective layer; a protective layer having a near infrared (NIR) wavelength specific anti-reflection coating; and a border having a NIR absorbing coating.
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