| 摘要 |
A transmission-type screen (362) includes: a first lens array surface (382a) on which a plurality of first microlenses (383a) are arrayed; and a second lens array surface (382b) that is provided at a distance in a direction perpendicular to the first lens array surface (382a) and on which a plurality of second microlenses (383b) whose shape is different from the shape of the first microlenses (383a) are arrayed. A level line near a vertex (386a) is circular or elliptical in the first microlenses (383a), and a level line near a vertex (386b) is elliptical with ellipticity different from the ellipticity of the level line of the first microlenses (383a) in the second microlenses (383b). |
