Lighting device to simulate natural light

    公开(公告)号:US12044397B2

    公开(公告)日:2024-07-23

    申请号:US18016988

    申请日:2021-07-19

    申请人: CoeLux S.r.l.

    摘要: A lighting device includes: a first optical unit and a second optical unit. The first optical unit includes a primary light source and dichroic separation optics. The primary light source is configured to emit primary light in the visible spectrum. The dichroic separation optics are configured to intercept at least part of the primary light generated by the primary light source and emit, from a first emission surface, at least one first highly collimated light component and at least one diffuse light component. The at least one first highly collimated light component and the at least one diffuse light component forms a light with chromatic components having different angular distributions. The second optical unit includes secondary collimation optics is configured to generate, from the light with chromatic component, a weakly collimated light component and a second highly collimated light component.

    Duv control of luminaire beam color

    公开(公告)号:US11428384B2

    公开(公告)日:2022-08-30

    申请号:US17576045

    申请日:2022-01-14

    摘要: A luminaire includes a white light LED light source emitting a light beam that that is filtered by first and second color filters. An optical device modifies the filtered light beam. A control system receives a commanded value for the optical device and responds by causing the optical device to move based on the commanded value; determining a Duv change in the light beam caused by the optical device; determining positions for the color filters based on the Duv change, a current correlated color temperature (CCT) isotherm value, and a current Duv value; and moving the color filters to their determined positions. The control system may alternatively receive a command with a Duv value and respond by determining color filters positions based on the received Duv value and a current CCT isotherm value; and moving the color filters to their determined positions.

    Variable light source
    4.
    发明授权

    公开(公告)号:US10918455B2

    公开(公告)日:2021-02-16

    申请号:US15973433

    申请日:2018-05-07

    申请人: CamPlex, Inc.

    发明人: John Tesar

    摘要: A light source includes features configured to compensate for discontinuous solid state sources. The light source can produce a wide color gamut in display, and improved color rendering of tissue under observation by phosphor gap filling with colored LEDs. The light source can include provisions to depart from a white light spectrum to heighten differences in anatomical features or functions. The light source can include provisions to introduce narrow-band solid-state sources for producing false-color and pseudo-color images, with variable color rendering to change the power spectral distribution and to compensate for fiber optic length and fiber optic diameter tip sensing.

    VARIABLE LIGHT SOURCE
    6.
    发明申请

    公开(公告)号:US20200318810A1

    公开(公告)日:2020-10-08

    申请号:US16677441

    申请日:2019-11-07

    申请人: CamPlex, Inc.

    摘要: An illumination device can include a plurality of light sources, a first beam combiner, and a plurality of filters. The plurality of light sources can include first and second light sources configured to generate first and second light beams respectively. The first beam combiner can be configured to receive light from the first and second light sources and combine the first and second light beams to generate a composite light beam. The plurality of filters can include a first filter configured to controllably adjust a spectral power distribution of the first light beam incident on the first filter and a second filter configured to controllably adjust a spectral power distribution of the second light beam incident on the second filter. The first and second filters can be configured to be tuned to alter the spectral power distribution of the first and second light beams.

    PHOSPHOR CONVERTED SUPERLUMINESCENT DIODE LIGHT SOURCE

    公开(公告)号:US20240167667A1

    公开(公告)日:2024-05-23

    申请号:US18285244

    申请日:2022-03-28

    IPC分类号: F21V9/30 F21V9/20 F21Y115/00

    CPC分类号: F21V9/30 F21V9/20 F21Y2115/00

    摘要: The invention provides a light generating system (1000), configured to generate system light (1001), wherein the light generating system (1000) comprises a light source (10), a first luminescent material (210), and a control system (300), wherein: —the light source (10) is configured to generate light source light (11) having a tunable spectral power distribution within a first wavelength range (Λx1); wherein the light source (10) comprises a superluminescent diode; —the first luminescent material (210) is configured to convert at least part of the light source light (11) into first luminescent material light (211) having one or more wavelengths in a first luminescent material light wavelength range (Λm1); —the first luminescent material (210) is configured such that in an operational mode the system light (1001) comprises the first luminescent material light (211); —a spectral power distribution of the system light (1001) is controllable in dependence of the spectral power distribution of the light source light (11); and —the control system (300) is configured to control the spectral power distribution of the light source light (11).

    VARIABLE LIGHT SOURCE
    10.
    发明申请

    公开(公告)号:US20220000577A1

    公开(公告)日:2022-01-06

    申请号:US17175406

    申请日:2021-02-12

    申请人: CamPlex, Inc.

    发明人: John Tesar

    摘要: A light source includes features configured to compensate for discontinuous solid state sources. The light source can produce a wide color gamut in display, and improved color rendering of tissue under observation by phosphor gap filling with colored LEDs. The light source can include provisions to depart from a white light spectrum to heighten differences in anatomical features or functions. The light source can include provisions to introduce narrow-band solid-state sources for producing false-color and pseudo-color images, with variable color rendering to change the power spectral distribution and to compensate for fiber optic length and fiber optic diameter tip sensing.