Abstract: A phosphor device of an illumination system emitting a first waveband light and having an optical path includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. The first waveband light is received and converted into a second waveband light by the first phosphor agent. The second waveband light is directed to the optical path. The range of the spectrum of the second waveband light includes at least a first color light and a second color light, so that the first color light or the second color light is separated from the second waveband light along the optical path. Therefore, the diversity of the design of the phosphor device is enhanced, the manufacturing cost and the size of product are reduced, and the color purity is enhanced.

Abstract: A phosphor device of an illumination system emitting a first waveband light and having an optical path includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. The first waveband light is received and converted into a second waveband light by the first phosphor agent. The second waveband light is directed to the optical path. The range of the spectrum of the second waveband light includes at least a first color light and a second color light, so that the first color light or the second color light is separated from the second waveband light along the optical path. Therefore, the diversity of the design of the phosphor device is enhanced, the manufacturing cost and the size of product are reduced, and the color purity is enhanced.

Abstract: A lighting system for a digital cinema projection apparatus is provided. The lighting system includes an ultra high pressure mercury lamp, a relay lens group, a digital micro display module, an optical filter module, and a projection lens. The ultra high pressure mercury lamp is used for emitting a light beam. The relay lens group is used for receiving the light beam and adjusting an optical path of the light beam. The optical filter module is arranged along the optical path of the lighting system for optically modulating an optical spectrum and/or a white balance of the light beam from the ultra high pressure mercury lamp. The projection lens is used for projecting the modulated light beam as an image beam.

Abstract: A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path.

Abstract: A wavelength-converting device includes a substrate and a reflective layer. The reflective layer is disposed on the substrate, among which when an operating temperature of the reflective layer is higher than or equal to 130° C., the reflective layer is formed of a first metallic material, and when the operating temperature of the reflective layer is lower than 130° C., the reflective layer is formed of a second metallic material. The reflectivity of the second metallic material is higher than the reflectivity of the first metallic material at room temperature. By forming the reflective layer of the first metallic material and the second metallic material at different operating temperatures, respectively, the decay of the reflectivity is effectively avoided, the reflectivity is optimized, and the converting efficiency of the wavelength-converting device is enhanced.

Abstract: A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path.

Abstract: A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path.

Abstract: A lighting system for a digital cinema projection apparatus is provided. The lighting system includes an ultra high pressure mercury lamp, a relay lens group, a digital micro display module, an optical filter module, and a projection lens. The ultra high pressure mercury lamp is used for emitting a light beam. The relay lens group is used for receiving the light beam and adjusting an optical path of the light beam. The optical filter module is arranged along the optical path of the lighting system for optically modulating an optical spectrum and/or a white balance of the light beam from the ultra high pressure mercury lamp. The projection lens is used for projecting the modulated light beam as an image beam.

Abstract: A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path.