Optical modulation element array
An optical modulation element array includes: a substrate and optical modulation elements two-dimensionally arranged in a first direction and a second direction, the first direction being perpendicular to the second direction, and at least a portion of the end of the hinge is disposed in a gap between optical modulation elements next to each other in the first direction, the optical modulation elements next to each other in the first direction is located next to the optical modulation elements having the end of the hinge, in the second direction.
1 . An optical modulation element array comprising:
a substrate and
a plurality of optical modulation elements two-dimensionally arranged in a first direction and a second direction, the first direction being perpendicular to the second direction,
wherein
(1) the plurality of the optical modulation elements in the first direction are linearly arranged side by side, and the plurality of the optical modulation elements in the second direction are arranged so that optical modulation elements next to each other are shifted in the first direction,
(2) each of the plurality of the optical modulation elements comprises:
an optical function film provided above the substrate;
a hinge that supports the optical function film, the optical function film being capable of being tilted, wherein the hinge extends in parallel with the second direction; and
a first support that connects an end of the hinge with the substrate; and
(3) at least a portion of the end of the hinge is disposed in a gap between the optical modulation elements next to each other in the first direction, each of the plurality of the optical modulation elements next to each other in the first direction are located next to the optical modulation elements having the end of the hinge, in the second direction.
2 . The optical modulation element array according to claim 1 , wherein the entire portion of the end of the hinge is disposed in the gap.
3 . The optical modulation element array as claimed in claim 1 , wherein a height of the optical function film on the basis of an upper surface of the substrate is greater than that of the hinge and that of the first support.
4 . The optical modulation element array as claimed in claim 1 , wherein the optical function film has a second support, the second support protruding toward the upper surface of the substrate, and the second support connects the optical function film to the hinge.
5 . The optical modulation element array as claimed in claim 1 , which comprises:
a movable film having an electrode layer, supported by the hinge in parallel with the optical function film, and connected to the hinge; and
a fixed electrode provided on the substrate and facing at least one of an area of the electrode layer, the area divided by the hinge.
6 . The optical modulation element array as claimed in claim 1 , wherein the optical function film is a micro mirror.