Abstract: A light source device, including a first light source, providing a first light beam in a first time period of a first period; and a second light source, providing a second light beam in a second time period of the first period, is provided. The first light beam and the second light beam have the same color temperature. The first light beam and the second light beam are emitted alternately in the first period, and a color rendering index of mixed light of the first light beam and the second light beam is greater than or equal to 85.

Abstract: A light source device, including a first light source, providing a first light beam in a first time period of a first period; and a second light source, providing a second light beam in a second time period of the first period, is provided. The first light beam and the second light beam have the same color temperature. The first light beam and the second light beam are emitted alternately in the first period, and a color rendering index of mixed light of the first light beam and the second light beam is greater than or equal to 85.

Abstract: A thermal image sensing system including at least one thermal sensor, at least one light sensor, an image identification module, a storage module and a computing module is provided. The thermal sensor senses thermal radiation emitted by an object and generates a thermal radiation image signal correspondingly. The light sensor senses visible light reflected by the object and generates at least one visible light image signal correspondingly. The image identification module receives the visible light image signal generated by the light sensor and determines a material of the object according to the at least one visible light image signal. The storage module stores a radiation coefficient of the material of the object. The computing module calculates a surface temperature of the object according to the radiation coefficient of the material of the object and the thermal radiation emitted by the object. A thermal image sensing method is also provided.

Abstract: A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit is configured to make the light switched between a first light and a second light so that at least one of a blue-light hazard and a circadian stimulus value of the light is changed. A wavelength of a blue light main peak in a spectrum of the first light is different from a wavelength of a blue light main peak in a spectrum of the second light.

Abstract: An embodiment of the disclosure provides a light source apparatus including a light-emitting module and a control unit. The light-emitting module is configured to provide a light. The control unit is configured to change proportion of a first sub-light and a second sub-light to form the light so that a circadian action factor (CAF) and a correlated color temperature (CCT) of the light varies along a CAF vs. CCT locus of the light different from a CAF vs. CCT locus of sunlight. A CAF vs. CCT coordinate of one of the first sub-light and the second sub-light is below the CAF vs. CCT locus of sunlight, and a CAF vs. CCT coordinate of the other one of the first sub-light and the second sub-light is above the CAF vs. CCT locus of sunlight. A display apparatus is also provided.

Abstract: A thermal image sensing system including at least one thermal sensor, at least one light sensor, an image identification module, a storage module and a computing module is provided. The thermal sensor senses thermal radiation emitted by an object and generates a thermal radiation image signal correspondingly. The light sensor senses visible light reflected by the object and generates at least one visible light image signal correspondingly. The image identification module receives the visible light image signal generated by the light sensor and determines a material of the object according to the at least one visible light image signal. The storage module stores a radiation coefficient of the material of the object. The computing module calculates a surface temperature of the object according to the radiation coefficient of the material of the object and the thermal radiation emitted by the object. A thermal image sensing method is also provided.

Abstract: An embodiment of the disclosure provides a light source apparatus including a light-emitting module and a control unit. The light-emitting module is configured to provide a light. The control unit is configured to change proportion of a first sub-light and a second sub-light to form the light so that a circadian action factor (CAF) and a correlated color temperature (CCT) of the light varies along a CAF vs. CCT locus of the light different from a CAF vs. CCT locus of sunlight. A CAF vs. CCT coordinate of one of the first sub-light and the second sub-light is below the CAF vs. CCT locus of sunlight, and a CAF vs. CCT coordinate of the other one of the first sub-light and the second sub-light is above the CAF vs. CCT locus of sunlight. A display apparatus is also provided.

Abstract: A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit is configured to make the light switched between a first light and a second light so that at least one of a blue-light hazard and a circadian stimulus value of the light is changed. A wavelength of a blue light main peak in a spectrum of the first light is different from a wavelength of a blue light main peak in a spectrum of the second light.

Abstract: An embodiment of the disclosure provides a light source apparatus including a light-emitting module and a control unit. The light-emitting module is configured to provide a light. The control unit is configured to change proportion of a first sub-light and a second sub-light to form the light so that a circadian action factor (CAF) and a correlated color temperature (CCT) of the light varies along a CAF vs. CCT locus of the light different from a CAF vs. CCT locus of sunlight. A CAF vs. CCT coordinate of one of the first sub-light and the second sub-light is below the CAF vs. CCT locus of sunlight, and a CAF vs. CCT coordinate of the other one of the first sub-light and the second sub-light is above the CAF vs. CCT locus of sunlight. A display apparatus is also provided.

Abstract: An embodiment of the disclosure provides a light source apparatus including a light-emitting module and a control unit. The light-emitting module is configured to provide a light. The control unit is configured to change proportion of a first sub-light and a second sub-light to form the light so that a circadian action factor (CAF) and a correlated color temperature (CCT) of the light varies along a CAF vs. CCT locus of the light different from a CAF vs. CCT locus of sunlight. A CAF vs. CCT coordinate of one of the first sub-light and the second sub-light is below the CAF vs. CCT locus of sunlight, and a CAF vs. CCT coordinate of the other one of the first sub-light and the second sub-light is above the CAF vs. CCT locus of sunlight. A display apparatus is also provided.

Abstract: A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit makes the light emitted from the light-emitting module switched among a plurality of kinds of first light. Correlated color temperatures of the plurality of kinds of first light are different from each other, and circadian action factors of the plurality of kinds of first light are substantially the same as each other.

Abstract: An illumination system that includes a light source device and an algorithm unit is provided. The light source includes a color temperature adjustable light source. The algorithm unit is coupled to the light source device and outputs a control signal to the light source device according to a reflection spectrum of an object, a visual color matching function, a visual preference correction function, or a combination of the above. The light source device outputs an illumination beam according to the control signal, so as to develop target visual perception of the object while the object is being irradiated by the illumination beam. A method for developing target visual perception of an object is also provided.

Abstract: An illumination system that includes a light source device and an algorithm unit is provided. The algorithm unit is coupled to the light source device and outputs a control signal to the light source device according to a reflection spectrum of an object, a visual color matching function, a visual preference correction function, or a combination of the above. The light source device outputs an illumination beam according to the control signal, so as to develop target visual perception of the object while the object is being irradiated by the illumination beam. A method for developing target visual perception of an object is also provided.

Abstract: A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit makes the light emitted from the light-emitting module switched among a plurality of kinds of first light. Correlated color temperatures of the plurality of kinds of first light are different from each other, and circadian action factors of the plurality of kinds of first light are substantially the same as each other.

Abstract: An illumination system that includes a light source device and an algorithm unit is provided. The algorithm unit is coupled to the light source device and outputs a control signal to the light source device according to a reflection spectrum of an object, a visual color matching function, a visual preference correction function, or a combination of the above. The light source device outputs an illumination beam according to the control signal, so as to develop target visual perception of the object while the object is being irradiated by the illumination beam. A method for developing target visual perception of an object is also provided.

Abstract: A light source apparatus including a light-emitting module and a control unit is provided. The light-emitting module is configured to provide a light. The control unit makes the light emitted from the light-emitting module switched between a first light and a second light. A spectrum of the first light is different from a spectrum of the second light, and color temperatures of the first light and the second light are substantially the same as each other.

Abstract: An illumination system that includes a light source device and an algorithm unit is provided. The algorithm unit is coupled to the light source device and outputs a control signal to the light source device according to a reflection spectrum of an object, a visual color matching function, a visual preference correction function, or a combination of the above. The light source device outputs an illumination beam according to the control signal, so as to develop target visual perception of the object while the object is being irradiated by the illumination beam. A method for developing target visual perception of an object is also provided.

Abstract: An illumination system that includes a light source device and an algorithm unit is provided. The light source includes a color temperature adjustable light source. The algorithm unit is coupled to the light source device and outputs a control signal to the light source device according to a reflection spectrum of an object, a visual color matching function, a visual preference correction function, or a combination of the above. The light source device outputs an illumination beam according to the control signal, so as to develop target visual perception of the object while the object is being irradiated by the illumination beam. A method for developing target visual perception of an object is also provided.

Abstract: A light emitting diode includes a semiconductor stacked structure, a substrate, a first electrode, a second electrode and a third electrode. The semiconductor stacked structure includes a first semiconductor layer, a second semiconductor layer and a light emitting layer. A light extraction layer with a roughened structure is formed on the doped semiconductor layer to improve the light emitting efficiency of LED. Furthermore, the strength of the semiconductor stacked structure can be enhanced by the light extraction layer, to improve the reliability of the LED and the production yields of manufacturing process.

Abstract: A light emitting diode includes a semiconductor stacked structure, a substrate, a first electrode, a second electrode and a third electrode. The semiconductor stacked structure includes a first semiconductor layer, a second semiconductor layer and a light emitting layer. An undoped semiconductor layer over the first semiconductor layer may be not removed or not completely removed to increase the strength of the semiconductor stacked structure and improve the reliability of the LED and the production yields of manufacturing process. A roughened structure (or a photonic crystal) can be formed on the undoped semiconductor layer when the semiconductor stacked structure to improve the light emitting efficiency of the LED.