| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical pointing device used in a mobile terminal device having excellent easy assemblability and impact resistance. <P>SOLUTION: This optical pointing device for the mobile terminal device includes a holder 10 provided with a storage hole, a light emitting means provided in the storage hole 12 of the holder 10, a pair of prisms 35 provided in the storage hole 12, and comprising an integrated type to converge light from the light emitting means, a light converging member 30 constituted of a convergence lens 40 arranged between the paired prisms 35, and an image sensor 60 for imaging the light transmitted through the light converging member 30 to compute a displacement value, and the light converging member 30 includes a lens fixing holder 45 coupled with the convergence lens 40 to maintain a stable installation state of the convergence lens 40 in the paired prisms 35. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
