A light source device includes: light sources; a detector configured to detect light amounts; and a processor configured to: control the light sources to emit light beams by applying a pulse current with a pulse width larger than a predetermined pulse width to the light sources before the processor makes a shift to a strobe observation mode; set a pulse current value at which a ratio of the light amounts of the light beams emitted by the plurality of light sources becomes a predetermined ratio for the plurality of light sources based on a detection result detected by the detector under a state where the pulse current with the pulse width larger than the predetermined pulse width is applied to the plurality of light sources; and make the shift to the strobe observation mode while maintaining the pulse current value for realizing the predetermined ratio.

A light source device includes: light sources; a detector configured to detect light amounts; and a processor configured to: control the light sources to emit light beams by applying a pulse current with a pulse width larger than a predetermined pulse width to the light sources before the processor makes a shift to a strobe observation mode; set a pulse current value at which a ratio of the light amounts of the light beams emitted by the plurality of light sources becomes a predetermined ratio for the plurality of light sources based on a detection result detected by the detector under a state where the pulse current with the pulse width larger than the predetermined pulse width is applied to the plurality of light sources; and make the shift to the strobe observation mode while maintaining the pulse current value for realizing the predetermined ratio.

A color correction device includes a computation engine including a processor and a memory coupled to the processor. The computation engine is configured to receive reference color data. A software application stored in the memory and configured to compute adjustment values needed to achieve the reference color data from a target color. An output configured to output color corrected signals to light emitting diodes (LEDs) to achieve a reference color associated with the reference color data from the target color of the LEDs.

A color correction device includes a computation engine including a processor and a memory coupled to the processor. The computation engine is configured to receive reference color data. A software application stored in the memory and configured to compute adjustment values needed to achieve the reference color data from a target color. An output configured to output color corrected signals to light emitting diodes (LEDs) to achieve a reference color associated with the reference color data from the target color of the LEDs.

An environmental control is configured to control lighting and/or other environmental parameters of an indoor space so that such parameters simulate measured outdoor environmental parameters. One or more sensors, such as a lighting sensor, can be mounted outdoor. Parameters measured by the sensor are communicated to a controller, which in turn controls one or more luminaires in the indoor space to simulate the actual outdoor light. In some instances the controller is configured to modulate the simulation to conform to user-defined preferences.

An environmental control is configured to control lighting and/or other environmental parameters of an indoor space so that such parameters simulate measured outdoor environmental parameters. One or more sensors, such as a lighting sensor, can be mounted outdoor. Parameters measured by the sensor are communicated to a controller, which in turn controls one or more luminaires in the indoor space to simulate the actual outdoor light. In some instances the controller is configured to modulate the simulation to conform to user-defined preferences.

Techniques and architecture are disclosed for array of light emitting diodes. For example, the array may comprise a plurality of stages, each stage comprising a plurality of light emitting diodes (LEDs) connected to a floating switch, respectively. The LEDs may be arranged substantially linearly on a circuit board in a plurality of clusters, where a distance between adjacent LEDs within a cluster is smaller than a distance between LEDs in adjacent clusters. Adjacent clusters contain LEDs from different stages and each stage contains LEDs in different clusters. The array may be incorporated in a lighting system. The light system may have a closed loop feedback mechanism which directly detects light emitted from a subset of the LEDs and a controller which controls the array based on the detection.

Techniques and architecture are disclosed for array of light emitting diodes. For example, the array may comprise a plurality of stages, each stage comprising a plurality of light emitting diodes (LEDs) connected to a floating switch, respectively. The LEDs may be arranged substantially linearly on a circuit board in a plurality of clusters, where a distance between adjacent LEDs within a cluster is smaller than a distance between LEDs in adjacent clusters. Adjacent clusters contain LEDs from different stages and each stage contains LEDs in different clusters. The array may be incorporated in a lighting system. The light system may have a closed loop feedback mechanism which directly detects light emitted from a subset of the LEDs and a controller which controls the array based on the detection.

A light-emitting apparatus includes a first light emitter configured to emit visible light and including a plurality of light sources having color temperatures different from each other, a second light emitter configured to emit infrared rays, and a controller configured to adjust characteristics of the visible light and the infrared rays by controlling the first and second light emitters, in which each of the light sources includes a light-emitting diode chip and a wavelength conversion unit configured to convert a wavelength rage of light emitted from the light-emitting diode chip.

A light-emitting apparatus includes a first light emitter configured to emit visible light and including a plurality of light sources having color temperatures different from each other, a second light emitter configured to emit infrared rays, and a controller configured to adjust characteristics of the visible light and the infrared rays by controlling the first and second light emitters, in which each of the light sources includes a light-emitting diode chip and a wavelength conversion unit configured to convert a wavelength rage of light emitted from the light-emitting diode chip.