Optical device

An optical device comprising:

• an optical element comprising at least one liquid crystal cell configured to distribute light emitted from a light source;
• a power supply part configured to generate a first potential and a second potential different from the first potential;
• a control signal generation circuit part configured to generate a first control signal, a second control signal, a third control signal, and a fourth control signal, each of the first control signal, the second control signal, the third control signal, and the fourth control signal controlling a first pulse width of the first potential and a second pulse width of the second potential;
• and
• a switch circuit part configured to output a first potential signal including the first potential with the first pulse width and the second potential with the second pulse width based on the first control signal,
• wherein the at least one liquid crystal cell comprises:
• a first substrate on which a first transparent electrode and a second transparent electrode are alternately arranged in a first direction, and
• a second substrate on which a third transparent electrode and a fourth transparent electrode are alternately arranged in a second direction intersecting the first direction,
• the power supply part comprises a first power source generating the first potential and a second power source generating the second potential,
• the switch circuit part comprises a first switch outputting the first potential signal, a second switch circuit outputting a second potential signal based on the second control signal, a third switch circuit outputting a third potential signal based on the third control signal, and a fourth switch circuit outputting a fourth potential signal based on the fourth control signal, each of the first switch circuit, the second switch circuit, the third switch circuit, and the fourth switch circuit electrically connected to the first power source and the second power source,
• the first transparent electrode, the second transparent electrode, the third transparent electrode, and the fourth transparent electrode are electrically connected to the first switch circuit, the second switch circuit, the third switch circuit, and the fourth switch circuit, respectively, and
• the first potential signal, the second potential signal, the third potential signal, and the fourth potential signal are input to the first transparent electrode, the second transparent electrode, the third transparent electrode, and the fourth transparent electrode, respectively.