| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a liquid crystal optical device having a function capable of switching between an imaging mode in which a subject depth-directional distance can be obtained and an imaging mode for high-resolution two-dimensional image, a solid-state imaging device, a portable information terminal, and a display unit.SOLUTION: A liquid crystal optical device includes: a first electrode part which has a first light-permeable substrate having a first surface, a light-permeable layer provided on the first substrate and a first light-permeable electrode provided on the light-permeable layer, the light-permeable layer having a recessed part, arrayed in a first direction parallel with the first surface and extending in a second direction crossing the first direction, on a surface opposed to an electrode film; a second electrode part which has a second light-permeable substrate having a second surface opposed to the first substrate with the first electrode part interposed, two second electrodes provided on the second surface of the second substrate, arrayed in the second direction, and extending in the first direction; a liquid crystal layer held between the first electrode part and second electrode part; a first polarization plate opposed to the liquid crystal layer with the second electrode part interposed; and a driving part which applies a voltage between the first electrode and second electrode.</p> |
