Lighting equipment with optimum stimulation of non-visual functions

    公开(公告)号:US10143060B2

    公开(公告)日:2018-11-27

    申请号:US15548802

    申请日:2016-01-27

    申请人: MAQUET SAS INSERM ENTPE

    摘要: The lighting equipment comprises a lighting device with a plurality of light sources for delivering white light having a tunable light spectrum, and a monitoring and control device that controls the light sources in a modulation cycle for modulating the light spectrum, which cycle comprises a first period where the light spectrum is red-enriched, a second period where the light spectrum is gradually modulated from red to blue, a third period where the light spectrum is blue-enriched, and a fourth period where the light spectrum is modulated gradually from blue to red. The control device is arranged to detect reception of a signal indicating a human presence, and, in response, reinitializes the modulation cycle when the modulation cycle is in the first period, or gradually modulates the light spectrum from blue to red when the modulation cycle is in the second, third or fourth period before reinitializing the modulation cycle.

    Optical device for measuring the optical properties of materials

    公开(公告)号:US11567004B2

    公开(公告)日:2023-01-31

    申请号:US17284879

    申请日:2019-10-22

    申请人: ENTPE

    摘要: The optical device for measuring at least one of reflected light (BRDF) and transmitted light (BTDF) from a sample, in all spherical directions of space around the sample, for each spherical direction of incident light includes a light source, and a goniophotometer configured to measure at least one of: directions of the incident light in spherical coordinates, and directions of the reflected light in spherical coordinates. The device further includes a dispersive screen, and a multi-sensor imaging device. The goniophotometer includes a first articulated arm supporting the light source; and a second articulated arm supporting the sample or a sample holder.

    OPTICAL DEVICE FOR MEASURING THE OPTICAL PROPERTIES OF MATERIALS

    公开(公告)号:US20210389240A1

    公开(公告)日:2021-12-16

    申请号:US17284879

    申请日:2019-10-22

    申请人: ENTPE

    IPC分类号: G01N21/55 G01J1/02 G01J1/08

    摘要: The optical device for measuring at least one of reflected light (BRDF) and transmitted light (BTDF) from a sample, in all spherical directions of space around the sample, for each spherical direction of incident light includes a light source, and a goniophotometer configured to measure at least one of: directions of the incident light in spherical coordinates, and directions of the reflected light in spherical coordinates. The device further includes a dispersive screen, and a multi-sensor imaging device. The goniophotometer includes a first articulated arm supporting the light source; and a second articulated arm supporting the sample or a sample holder.

    ACOUSTIC ATTENUATION DEVICE PROVIDED WITH INSERTS MADE OF ACOUSTICALLY ABSORBENT MATERIAL

    公开(公告)号:US20240200327A1

    公开(公告)日:2024-06-20

    申请号:US18287402

    申请日:2022-04-13

    IPC分类号: E04B1/99 E04B1/68

    CPC分类号: E04B1/99 E04B1/6804

    摘要: An acoustic attenuation device having two inserts made of acoustically absorbent material, the two inserts being different from each other and being separated from each other so as to delimit between them a longitudinal slot, each insert including a front surface intended to be oriented towards a space to be acoustically attenuated; and two support elements which are made of substantially acoustically impermeable material and which at least partially delimit an internal cavity in which the two inserts are disposed, each support element including a cover part partially covering the front surface of a respective insert such that the front surfaces of the two inserts are partially exposed, the two cover parts delimiting at least one passage opening which emerges into the internal cavity and which is located at least partially opposite the longitudinal slot so as to clear an access to the longitudinal slot.