Optical element including light shielding regions and pinholes
In an optical device, a center position of a pinhole is disposed at a center position of a sensor region, in a first individual region disposed in a center region, of a plurality of first individual regions, and a distance in planar view between a center region of the sensor region and the pinhole in the first individual region far from the center region is longer than a distance in planar view between the center region of the sensor region and the pinhole in the first individual region close to the center region in the first individual regions disposed in the peripheral region.
1 . An optical device comprising:
a first substrate;
a second substrate provided to overlap the first substrate;
a plurality of light emitting regions for emitting near-infrared light on the first substrate;
a plurality of sensor regions for detecting the near-infrared light on the first substrate;
a light shielding region, and a plurality of pinholes provided in the light shielding region on the second substrate;
a plurality of first individual regions each including one of the plurality of sensor regions, the light shielding region, and one of the plurality of pinholes; and
a plurality of second individual regions each including one of the plurality of light emitting regions, wherein
the plurality of first individual regions and the plurality of second individual regions are disposed alternately,
an individual region (A) is in a central region of the plurality of first individual regions,
an individual region (B) and an individual region (C) are in a peripheral region of the plurality of first individual regions,
the individual region (C) is further from the central region than the individual region (B),
a pinhole overlaps with a center portion of the sensor region in the individual region (A),
the pinhole does not overlaps with the center position of the sensor region in the individual region (B),
the pinhole does not overlaps with the center position of the sensor region in the individual region (C), and
a distance between the pinhole and the center position of the sensor region in the individual region (C) is longer than that in the individual region (B) in a planar view.
2 . The optical device according to claim 1 , wherein
the light shielding region includes a plurality of light shielding layers, a first pinhole provided in one of the plurality of light shielding layers, and a second pinhole provided in another of the plurality of light shielding layers,
the one of the plurality of pinholes includes the first pinhole and the second pinhole,
the first pinhole and the second pinhole are displaced from each other in the planar view, and
a line connecting a center of the first pinhole with a center of the second pinhole extends obliquely to a thickness direction of the second substrate.
3 . The optical device according to claim 1 , further comprising:
a display panel, wherein
the first substrate, the second substrate, and the display panel are overlapped each other.
4 . The optical device according to claim 3 , wherein
the first substrate is located between the second substrate and the display panel.
5 . The optical device according to claim 1 , further comprising:
a lens, wherein
the first substrate, the second substrate, and the lens are overlapped each other.
6 . The optical device according to claim 5 , wherein
the first substrate is located between the second substrate and the lens.