公开(公告)号：US11470699B2

公开(公告)日：2022-10-11

申请号：US17166450

申请日：2021-02-03

Applicant: NICHIA CORPORATION

Inventor： Kei Haraguchi ,  Kenji Asai ,  Munetake Fukunaga ,  Yasuo Fujikawa

IPC: H05B45/20 ,  H05B45/10

Abstract: A lighting control system includes: a light fixture including a first light emitting device configured to emit light having a correlated color temperature in the range of ±500 K from a prescribed value, a second light emitting device configured to emit light having a correlated color temperature in the range of ±500 K from the prescribed value, and an emission controller configured to cause the light fixture to irradiate illumination light by controlling irradiation percentages of the light emitted from the first light emitting device and the light emitted from the second light emitting device; and an information processing apparatus communicably connected to the light fixture, the information processing apparatus comprising a dimming controller configured to change the irradiation percentages of the light emitted from the first light emitting device and the second light emitting device in accordance with a time of day by transmitting dimming instructions.

公开(公告)号：US11778705B2

公开(公告)日：2023-10-03

申请号：US17903193

申请日：2022-09-06

Applicant: NICHIA CORPORATION

Inventor： Kei Haraguchi ,  Kenji Asai ,  Munetake Fukunaga ,  Yasuo Fujikawa

IPC: H05B45/20 ,  H05B45/10

CPC classification number: H05B45/20 ,  H05B45/10

Abstract: A lighting control system includes: a light fixture including: a first light emitting device configured to emit light having a first correlated color temperature of 3000 K or less in the CIE1931 color space chromaticity diagram, a second light emitting device configured to emit light having a second correlated color temperature equal to or higher than that of the first correlated color temperature, a third light emitting device configured to emit light having substantially effective emission wavelength in a 320 nm to 420 nm range, and an emission controller configured to cause the light fixture to irradiate illumination light by controlling irradiation percentages of the light emitted from the first, second, and third light emitting devices; and an information processing apparatus communicably connected to the light fixture and including a dimming controller configured to change the irradiation percentages.

公开(公告)号：US10959304B2

公开(公告)日：2021-03-23

申请号：US16840525

申请日：2020-04-06

Applicant: NICHIA CORPORATION

Inventor： Kei Haraguchi ,  Kenji Asai ,  Munetake Fukunaga ,  Yasuo Fujikawa

IPC: H05B45/20 ,  H05B45/10

Abstract: A lighting control system includes: a light fixture including a first light emitting device configured to emit light having a correlated color temperature in the range of ±100 K from a prescribed value, a second light emitting device configured to emit light having a correlated color temperature in the range of ±100 K from the prescribed value, and an emission controller configured to cause the light fixture to irradiate illumination light by controlling irradiation percentages of the light emitted from the first light emitting device and the light emitted from the second light emitting device; and an information processing apparatus communicably connected to the light fixture, the information processing apparatus comprising a dimming controller configured to change the irradiation percentages of the light emitted from the first light emitting device and the second light emitting device in accordance with a time of day by transmitting dimming instructions.