Abstract: A thermoelectric conversion material according to an embodiment is expressed by the following formula (1): (M11-xM2x)4Si(Te1-yM3y)4 ??(1) wherein M1 represents Ta or Nb, M2 is at least one element selected from a group consisting of elements of groups 4 to 12 in the periodic table, M3 is at least one element selected from a group consisting of As, Sb, Bi, Sn and Pb, 0?x<0.02, 0?y<0.02, and M2 is an element different from M1 when 0<x.

Abstract: A thermoelectric conversion material according to an embodiment is expressed by the following formula (1): (M11-xM2x)4Si(Te1-yM3y)4 ??(1) wherein M1 represents Ta or Nb, M2 is at least one element selected from a group consisting of elements of groups 4 to 12 in the periodic table, M3 is at least one element selected from a group consisting of As, Sb, Bi, Sn and Pb, 0?x<0.02, 0?y<0.02, and M2 is an element different from M1 when 0<x.

Abstract: An image generation section of the image generation system generates a stereoscopic image so that an information display object is stereoscopically displayed at a first depth position when a parallax level has been set to a first parallax level, and is stereoscopically displayed at a second depth position when the parallax level has been set to a second parallax level. The image generation section generates the stereoscopic image so that a first edge of the information display object is stereoscopically displayed within a first area when the parallax level has been set to the second parallax level, a first boundary plane being a boundary plane specified by a line segment that connects the first edge and a third viewpoint when the parallax level has been set to the first parallax level, and the first area being an area positioned between the first boundary plane and a first clipping plane.