This light adjustment device comprises: a panel unit in which a plurality of light adjustment panels each having first and second substrates and each having two or more terminal groups are layered in a first direction; and flexible printed boards connected to the respective terminal groups of one of the light adjustment panels. When the panel unit is seen from the first direction, a plurality of the terminal groups to which the flexible printed boards are connected are provided in the light adjustment panel at an end in a second direction crossing the first direction and at an end in a third direction opposite to the second direction, and the flexible printed boards are not superposed.
G02F 1/1345 - Conductors connecting electrodes to cell terminals
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
2.
LIQUID CRYSTAL LIGHT CONTROL DEVICE AND LIGHTING DEVICE
This liquid crystal light control element includes a plurality of liquid crystal cells. Each of the plurality of liquid crystal cells comprises: a first substrate; a second substrate opposing the first substrate; a first electrode and a second electrode that have a belt-like pattern and that are provided on the first substrate and/or the second substrate; a first alignment film provided on the first substrate; a second alignment film provided on the second substrate; and a liquid crystal layer between the first substrate and the second substrate. The plurality of liquid crystal cells are disposed so as to overlap each other. The belt-like patterns of the first electrodes and the second electrodes are alternately disposed. A voltage is applied between the first electrodes and the second electrodes so as to form a transverse electric field. The first alignment film is disposed such that the alignment direction thereof intersects with the extension direction of the belt-like patterns. The second alignment film is disposed such that the alignment direction thereof intersects with the alignment direction of the first alignment film.
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
This optical device comprises: an optical element that includes at least one liquid crystal cell for distributing light irradiated from a light source; a power supply part that generates a first potential and a second potential different from the first potential; a control signal generation circuit part that generates a control signal for controlling the pulse widths of the first potential and the second potential; and a switch circuit part that, on the basis of the control signal, outputs a first potential signal including the first potential having a first pulse width and the second potential having a second pulse width. The at least one liquid crystal cell includes a first substrate on which first transparent electrodes and second transparent electrodes are alternately disposed in a first direction, and a second substrate on which third transparent electrodes and fourth transparent electrodes are alternately disposed in a second direction crossing the first direction, and the first potential signal is inputted to the first transparent electrodes.
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
This optical element includes first to fourth liquid crystal cells that are stacked in the stated order. The first to fourth liquid crystal cells each include: a first substrate in which a first pair of comb tooth-shaped transparent electrodes are disposed; and a second substrate in which a second pair of comb tooth-shaped transparent electrodes are disposed. The extension direction of the first pair of comb tooth-shaped transparent electrodes intersects with the extension direction of the second pair of comb tooth-shaped transparent electrodes. Between two different liquid crystal cells among the first to fourth liquid crystal cells, one of the first pair of comb tooth-shaped transparent electrodes of one of the liquid crystal cells and one of the second pair of comb tooth-shaped transparent electrodes of the other of the liquid crystal cells are electrically connected to each other.
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
This liquid crystal light control device includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal cell. Each of the first liquid crystal cell, the second liquid crystal cell, the third liquid crystal cell, and the fourth liquid crystal cell includes a first substrate including a first alignment film, a second substrate including an electrode including a belt-shaped pattern, and a second alignment film, and a liquid crystal layer between the first substrate and the second substrate, and is provided such that the alignment direction of the first alignment film and the alignment direction of the second alignment film cross each other. The electrode including the belt-shaped pattern is disposed in a direction in which the longitudinal direction of the belt-shaped pattern crosses the alignment direction of the second alignment film, and generates a transverse electric field in the same direction as the alignment direction of the second alignment film.
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
This liquid crystal light control device includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal cell. The first liquid crystal cell, the second liquid crystal cell, the third liquid crystal cell, and the fourth liquid crystal cell each include a first substrate in which a first electrode including a strip-shaped pattern is provided, a second substrate in which a second electrode including a strip-shaped pattern is provided, and a liquid crystal layer between the first substrate and the second substrate. The first substrate and the second substrate are arranged so that the longitudinal directions of the strip-shaped patterns of the first electrode and the second electrode intersect, and among the first liquid crystal cell, the second liquid crystal cell, the third liquid crystal cell, and the fourth liquid crystal cell, the longitudinal directions of the strip-shaped patterns of the first electrodes of two of the liquid crystal cells are arranged in a direction parallel to a first direction, and the longitudinal directions of the strip-shaped patterns of the first electrodes of the other two liquid crystal cells are arranged in a direction parallel to a second direction intersecting the first direction.
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
Provided is an optical element that can control the light distribution or a light distribution pattern. The optical element comprises two laminated liquid crystal cells (120, 110). Each of the two liquid crystal cells comprises: a first substrate (111-1, 121-1) on which a first transparent electrode (112-1, 122-1) and a second transparent electrode (112-2, 122-2) are alternately arranged in a first direction; a second substrate (111-2, 121-2) on which a third transparent electrode (112-3, 122-3) and a fourth transparent electrode are alternately arranged in a second direction intersecting the first direction; and a liquid crystal (113, 123) between the first substrate and the second substrate. The second substrate (111-2) of one of the two liquid crystal cells, and the first substrate (121-1) of the other of the two liquid crystal cells are adjacent.
G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
F21V 9/40 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
G02B 3/14 - Fluid-filled or evacuated lenses of variable focal length
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