| 摘要 |
<p>An optical touch panel (10) having over-cladding layers (18a, 18b) each integrated with a lens-shaped portion (i.e., optical waveguides each having a lens-integrated over-cladding layer). The optical touch panel requires neither lens assembly nor optical axis alignment, and is therefore free from the fear that the displacement of lenses will occur. This makes it possible to achieve high optical transmission efficiency and high impact resistance.</p> |
