In a head mounted display which is used in a state of being mounted on a user’s head, a convex lens is disposed at a position facing the user’s cornea when the head mounted display is mounted. A plurality of infrared light sources is disposed in the periphery of the convex lens, and emit infrared light toward the user’s cornea. A camera captures an image including the user’s cornea in a subject. A housing houses the convex lens, the infrared light sources, and the camera. Here, when the periphery of the convex lens is equally divided into four regions of a first region which is a region on the outer corner of the eye of the user, a second region which is a region on the inner corner of the eye, a third region which is a region on the top of the head, and a fourth region which is a region on the jaw, the plurality of infrared light sources is respectively disposed in any of the first region and the second region.本發明揭露一種頭戴式顯示器,被裝戴在用戶的頭部上使用,其中,將一凸透鏡設置在裝戴了該頭戴式顯示器時,與該用戶的眼角膜相對的位置上。將多個紅外線光源設置在該凸透鏡的周圍,而對著該用戶的眼角膜發射紅外線。一攝影機,對包含該用戶的眼角膜的被攝影物的影像加以攝影。一框體,收納該凸透鏡、該紅外線光源、以及該攝影機。在此,將該凸透鏡的周圍等分成該用戶的外眼角側的區域的第一區域、內眼角側的區域的第二區域、頭頂側的區域的第三區域、下巴側的區域的第四區域的四個區域時,該多個紅外線光源分別被設置在該第一區域或該第二區域的其中之一中。302a‧‧‧左眼的眼角膜302b‧‧‧右眼的眼角膜701a‧‧‧右眼視線向量701b‧‧‧左眼視線向量702‧‧‧交點
