PROBLEM TO BE SOLVED: To provide an optical sensor and a sensor chip which can be easily manufactured and with which the low cost and the high accuracy can be achieved.SOLUTION: A light generating element is of a surface light generating type which generates emission light in a normal direction of an insulation substrate. A light receiving element is of a front surface incident type which receives scattered light from a horizontal direction with respect to a surface of the insulation substrate at a front surface. A cap is further provided with a light path conversion element which converts the direction of the emission light of the light generating element into the horizontal direction with respect to the surface of the insulation substrate. A first opening of the cap exists in an optical path direction converted by the light path conversion element of the cap with respect to the emission light of the light generating element. A second opening of the cap exists in a direction in which the light receiving element can receive the scattered light with respect to the light receiving element.COPYRIGHT: (C)2012,JPO&INPIT【課題】製作が容易で、低コスト、高精度化を実現した光学センサ及びセンサチップを提供する。【解決手段】発光素子は、絶縁基板の法線方向に出射光を出射する面発光型であり、前記受光素子は、前記絶縁基板の面と水平な方向からの散乱光を端面で受光する端面入射型であり、前記キャップは、前記発光素子の出射光の方向を前記絶縁基板の面と水平な方向へ変換する光路変換素子をさらに有しており、前記キャップの前記第一開口部は、前記発光素子の出射光が前記キャップの前記光路変換素子で変換された光路方向にあり、前記キャップの前記第二開口部は、前記受光素子に対して前記受光素子が散乱光を受光できる方向にあることを特徴とする。【選択図】図1
