发明名称 OPTICAL POINTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME
摘要 <p><P>PROBLEM TO BE SOLVED: To provide an optical pointing device having high detection accuracy of a photographic object by simply reducing influence of stray light by Fresnel reflection from a contact face with the photographic object while keeping intensity of light rays irradiated from a light source, and to provide an electronic apparatus including the same. <P>SOLUTION: A cover part 24 includes a light guide plate type optical member 24d wherein an image forming element 14 including the contact face 11 with which the photographic object 10 contacts and leading reflected light L from the photographic object 10 to an imaging element 15, and a bending element 12 such as a prism changing a direction of the reflected light L to lead the image forming element 14 are integrally formed. A transparent resin 20 is formed with an inclined surface inclining to an upper surface of the transparent resin 20 at an inclination angleϕtoward a virtual plane (Z-Y plane including A-A' line) including a light ray path of the reflected light reflected on the center of the image forming element 14 and arriving at the center of the imaging element from the light source 16 side. <P>COPYRIGHT: (C)2011,JPO&INPIT</p>
申请公布号 JP2011159052(A) 申请公布日期 2011.08.18
申请号 JP20100019374 申请日期 2010.01.29
申请人 SHARP CORP 发明人 WATANABE YUKIO;MIYAKE TAKAHIRO;NAGURA KAZUTO
分类号 G06F3/042 主分类号 G06F3/042
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