Positioning marker ball and method for making the same and positioning device having the same
AssigneeTaiwan Main Orthopaedic Biotechnology Co., Ltd.
InventorMin-Liang WANG
Life of this patent
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Abstract
A positioning marker ball is adapted for an optical positioning system and includes a main body unit, and an optical unit. The main body unit includes a ball body, and a rod portion that extends outwardly from the ball body, and that has a connecting end section disposed opposite the ball body and is adapted to connect a mount. The ball body is molded integrally with the rod portion. The optical unit is disposed on the ball body, and includes a reflective layer that is disposed on the ball body to reflect light. A positioning device adapted for an optical positioning system includes the positioning marker ball described above. A method for making the positioning marker ball is also included.
Claims5
A method for making a positioning marker ball adapted for an optical positioning and tracking system comprising the steps of:
- forming first and second reflective shells, which includes a step of binding together the plastic shape setting film and the optical film stack to form a laminate, and a step of shaping the laminate, each of the first and second reflective shells having a predesignated shape, the optical film stack having a plurality of optical elements distributed therein;
- preparing a main body unit that has a ball body, and a rod portion that extends outwardly from said ball body;
- and
- enwrapping the ball body of the main body unit with the first and second reflective shell to form a positioning marker ball, while exposing the rod portion of the main body unit;
- wherein the positioning marker ball has an optical layer disposed on said ball body, a reflective layer that is formed between the ball body and the optical layer, and that reflects light, and a shape setting layer that is formed between the reflective layer and the body, the shape setting layer being formed from the plastic shape setting film, the optical layer and the reflective layer being formed from the optical film stack.
Dependencies are inferred from the claim text.