| 摘要 |
PURPOSE:To obtain an array lens having large variation in focal length by projecting or sinking an elastic body from plural openings. CONSTITUTION:An opening plate 2 in which plural circular openings 2' are arranged in line is fixed to a container 1, and a transparent elastic body 3 and a movable part 4 for pressing the elastic body 3 are arranged under the plate. When pressure is applied to the elastic body 3 through the movable part 4, a part of the elastic body projects from the openings in convex lenticular form. Conversely, when negative pressure is applied, the elastic body becomes concave lenslike form in each opening. A compound eye optical system of erect image and unmagnification can be constituted using such an array lens. |
