公开(公告)号：US20030081895A1

公开(公告)日：2003-05-01

申请号：US10246804

申请日：2002-09-18

Applicant: STMICROELECTRONICS S.A.

Inventor： Francois Roy ,  Thierry Devoivre ,  Yann Marcellier

IPC: G02B006/26 ,  G02B006/12

CPC classification number: H01L27/14609 ,  H01L27/14621 ,  H01L27/14627

Abstract: A photocell having an entry face for the light and a photosensitive element, as well as to a matrix composed of such photocells. A lightguide-forming element placed between the entry face and the photosensitive element of the photocell ensures optical coupling between the latter two components. It makes it possible to place on either side of the photosensitive element electronic components for reading and for controlling the photocell, while reducing the loss of light incident on the entry face corresponding to the rays which would strike these electronic components. This lightguide-forming element is composed of at least three dielectric materials having different respective optical refractive indices and placed within concentric volumes.

Abstract translation: 具有用于光的入射面和感光元件的光电管，以及由这种光电池组成的矩阵。 放置在光电元件的入射面和感光元件之间的光导形成元件确保后两个部件之间的光耦合。 它可以放置在用于读取和控制光电元件的感光元件电子部件的两侧，同时减少入射到入射面上的光的损失，该入射面对应于将撞击这些电子部件的光线。 该光导形成元件由具有不同相应光折射率的至少三个电介质材料组成并且被放置在同心体积内。