A controller and a method for controlling at least two light sources is disclosed. The method 700 comprises: obtaining 702 an image captured with a camera, wherein the image comprises at the least two light sources and at least two objects, analyzing 704 the image to detect the at least two light sources and the at least two objects in the image, identifying 706 the at least two light sources, determining 708 positions of the at least two objects relative to the at least two light sources in the image, obtaining 710 color information related to colors of the at least two objects, determining 712 a first color for a first light source of the at least two light sources and a second color for a second light source of the at least two light sources based on the color information and based on the determined relative positions and controlling 714 the first light source according to the first color and the second light source according to the second color, wherein the image comprises a third light source, and the method further comprises determining a third color for the third light source based on the first color and/or the second color, and controlling the third light source according to the third color.

A controller and a method for controlling at least two light sources is disclosed. The method 700 comprises: obtaining 702 an image captured with a camera, wherein the image comprises at the least two light sources and at least two objects, analyzing 704 the image to detect the at least two light sources and the at least two objects in the image, identifying 706 the at least two light sources, determining 708 positions of the at least two objects relative to the at least two light sources in the image, obtaining 710 color information related to colors of the at least two objects, determining 712 a first color for a first light source of the at least two light sources and a second color for a second light source of the at least two light sources based on the color information and based on the determined relative positions and controlling 714 the first light source according to the first color and the second light source according to the second color, wherein the image comprises a third light source, and the method further comprises determining a third color for the third light source based on the first color and/or the second color, and controlling the third light source according to the third color.

The present disclosure relates to a method for sanitization of a surface by emission of a plurality of sanitization wavelengths, and to a device for implementing the method. The method comprises emitting light using first LEDs configured to emit the sanitization wavelengths, receiving, by a circuit, a feedback signal from a light sensor indicating a light intensity received by the light sensor during the light emission, and controlling the first LEDs with the circuit based on the feedback signal.

A lighting device including a first light emitter including a plurality of light sources each being configured to emit light with a different color temperature, a second light emitter including at least one light emitting structure to emit light having a different color range than that emitted from the first light emitter, a controller to adjust characteristics of light emitted from the first and second light emitters, a user interface member configured to receive input of a user and connected to the controller, and a storage medium connected to the controller, in which each of the light sources includes a light-emitting diode chip and a wavelength conversion member to convert a wavelength range of light emitted from the light-emitting diode chip, and the controller is further configured to control the first and second light emitters according to a spectrum of light stored in the storage medium.

A lighting device including a first light emitter including a plurality of light sources each being configured to emit light with a different color temperature, a second light emitter including at least one light emitting structure to emit light having a different color range than that emitted from the first light emitter, a controller to adjust characteristics of light emitted from the first and second light emitters, a user interface member configured to receive input of a user and connected to the controller, and a storage medium connected to the controller, in which each of the light sources includes a light-emitting diode chip and a wavelength conversion member to convert a wavelength range of light emitted from the light-emitting diode chip, and the controller is further configured to control the first and second light emitters according to a spectrum of light stored in the storage medium.

The present disclosure relates to a lighting arrangement, which comprises at least one light source, with at least one camera and a control system, wherein the colour and/or colour temperature of the light source is variable and the camera records images of a region illuminated by the light source. According to the disclosure, the control system controls the lighting arrangement such that the light source illuminates the illuminated region successively with light of a different colour and/or colour temperature, wherein the control system separately evaluates and/or outputs a first image recorded in a first colour and/or colour temperature of the lighting.

The present disclosure relates to a lighting arrangement, which comprises at least one light source, with at least one camera and a control system, wherein the colour and/or colour temperature of the light source is variable and the camera records images of a region illuminated by the light source. According to the disclosure, the control system controls the lighting arrangement such that the light source illuminates the illuminated region successively with light of a different colour and/or colour temperature, wherein the control system separately evaluates and/or outputs a first image recorded in a first colour and/or colour temperature of the lighting.

Methods and systems are provided to generate metamerically matched illumination on a surgical site. The metamerically matched illumination may reduce or remove strobing effects associated with illumination devices during a surgery or surgical procedure. By metamerically matching illuminants in the illumination in combination with estimates of the human visual system, the illumination of the surgical site can visually appear to a user as a continuous white light, while maintaining distinct underlying spectra in the illumination. The light reflected by the surgical object may also be captured and metamerically matched, such that the reflected light appears as a single continuous color.

Methods and systems are provided to generate metamerically matched illumination on a surgical site. The metamerically matched illumination may reduce or remove strobing effects associated with illumination devices during a surgery or surgical procedure. By metamerically matching illuminants in the illumination in combination with estimates of the human visual system, the illumination of the surgical site can visually appear to a user as a continuous white light, while maintaining distinct underlying spectra in the illumination. The light reflected by the surgical object may also be captured and metamerically matched, such that the reflected light appears as a single continuous color.

A multicamera device includes: a first sensor to detect a first spectrum of external light; a second sensor to detect a second spectrum of the external light; and an optic overlapping with the first and second sensors. The optic includes: a substrate; a first reflective layer on the substrate; and an optical layer between the first sensor and the substrate, the optical layer to transmit the first spectrum of the external light to the first sensor, and reflect the second spectrum of the external light toward the first reflective layer, and the first reflective layer is to reflect the second spectrum of the external light in a direction toward the second sensor.