Lighting device
A lighting device capable of manipulating a wider range of parameters to reproduce various light sources. A light source unit includes, for example, a liquid crystal panel and a backlight, and each pixel is a light source capable of adjusting innumerable hues and intensities capable of adjusting hue and intensity. A lenticular lens includes an array of a plurality of lenticules, and is arranged such that a plurality of light sources capable of adjusting hue and intensity is associated with each lenticule. In addition, on the outer periphery of the cylindrical portion of each lenticule, a partition is formed to block emission light from the pixel below the adjacent lenticule, thereby preventing repetition.
1. A lighting device, comprising:
a light source unit, wherein
the light source unit includes a plurality of light sources in a two-dimensional array, and
the plurality of light sources is configured to adjust hue and intensity of light emission from the plurality of light sources; and
a light ray control unit configured to control a respective radiation direction of each light source of the plurality of light sources, wherein
the light ray control unit includes a lenticular lens,
the lenticular lens includes a plurality of lenticules,
a side surface of each lenticule of the plurality of lenticules includes an opaque portion,
an upper surface of each lenticule is a convex surface,
the convex surface of a specific lenticule of the plurality of lenticules is asymmetric with respect to a center of the specific lenticule, and
the light source unit further includes a louver configured to limit an incident angle of light incident on the lenticular lens.
2. The lighting device according to claim 1 , wherein
each lenticule of the plurality of lenticules is associated with a respective set of light sources of the plurality of the light sources.
3. The lighting device according to claim 1 , wherein
a radiation direction of the lenticular lens is at an inclination from a front direction of the lighting device.
4. The lighting device according to claim 1 , wherein
the lenticular lens has respective emission angles for different directions of the plurality of light sources.
5. The lighting device according to claim 1 , wherein
the light source unit includes a light emitting diode element.
6. The lighting device according to claim 1 , wherein
the light source unit includes an organic EL element.
7. The lighting device according to claim 1 , wherein
the opaque portion of a first lenticule of the plurality of lenticules is configured to block the incident light from a set of light sources associated with a second lenticule of the plurality of lenticules, and
the second lenticule is adjacent to the first lenticule of the plurality of lenticules.
8. The lighting device according to claim 1 , wherein
a gap is between two adjacent lenticules of the plurality of lenticules.
9. The lighting device according to claim 1 , further comprising a control unit configured to control the light source unit.
10. A lenticular lens, comprising:
a plurality of lenticules, wherein
a side surface of each lenticule of the plurality of lenticules includes an opaque portion,
the opaque portion of a first lenticule of the plurality of lenticules is configured to block incident light from a set of light sources associated with a second lenticule of the plurality of lenticules,
the second lenticule is adjacent to the first lenticule of the plurality of lenticules,
an upper surface of each lenticule is a convex surface,
the convex surface of a specific lenticule of the plurality of lenticules is asymmetric with respect to a center of the specific lenticule,
each lenticule of the plurality of lenticules is configured to control light emitted from a corresponding set of light sources of a plurality of light sources, and
the emitted light is controlled based on a height of a lenticule of the plurality of lenticules, a curvature of the lenticule, and a refractive index of a material of the lenticule.
11. A lighting device, comprising:
a light source unit that includes a light source and a liquid crystal panel,
wherein the light source is configured to irradiate the liquid crystal panel from behind; and
a light ray control unit configured to control a radiation direction of the light source, wherein
the light ray control unit includes a lenticular lens,
the lenticular lens includes a plurality of lenticules,
each lenticule of the plurality of lenticules includes an opaque portion, and
a side surface of each lenticule of the plurality of lenticules includes the opaque portion.
12. The lighting device according to claim 11 , wherein
the light source unit further includes a louver configured to limit an incident angle of light incident on the lenticular lens.