Patent ID: 11898709
Assignee: JAPAN DISPLAY INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 9:
10. A lighting device comprising a first assembly and a second assembly,
a first assembly including:
a first funnel shaped reflector having a first neck, a first opening, a first reflecting surface and a first light axis,
a first liquid crystal lens being disposed at the first opening,
a length of the first funnel shaped reflector along the first light axis being h1 and a diameter of the opening being d1,
a first unit including a first LED emitting a first color being disposed on the first neck,
a second unit including a second LED emitting a second color being disposed on the first neck,
a third unit including a third LED emitting a third color being disposed on the first neck,
a fourth unit including a fourth LED emitting a fourth color being disposed on the first neck,
a second assembly including:
a second funnel shaped reflector having a second neck, a second opening, a second reflecting surface and a second light axis,
a second liquid crystal lens being disposed at the second opening,
a length of the second funnel shaped reflector along the second light axis being h2 and a diameter of the opening being d2,
a fifth unit including a first LED emitting a first color being disposed on the second neck,
a sixth unit including a second LED emitting a second color being disposed on the second neck,
a seventh unit including a third LED emitting a third color being disposed on the second neck,
an eighth unit including a fourth LED, emitting a fourth color, disposed on the second neck,
wherein h1/d1 is two or more, and h1>h2, and
a collimated light from the first funnel shaped reflector enters the first liquid crystal lens.