Abstract: An illumination device, a projection system and operation methods thereof are provided. The illumination device includes a controller, a light source device, a phosphor wheel, a cooling device, and a temperature sensor. The light source device is configured to generate an illumination beam according to a light source control signal. The phosphor wheel is configured to convert the illumination beam into a conversion beam, adjust a rotation speed of the phosphor wheel according to a phosphor wheel control signal, and generate a rotation speed status signal. The temperature sensor is configured to sense a temperature value of the phosphor wheel to generate a temperature status signal. The cooling device is configured to adjust a cooling capacity according to a cooling control signal. The controller generates the cooling control signal according to the temperature status signal, the rotation speed status signal, and the light source control signal.

Abstract: An illumination system including a laser light source, a phosphor wheel, a first light detection module, a first light sensing device, and a controller is provided. A first color region boundary is formed between the first and second color regions of the phosphor wheel. The first light sensing component is located downstream of the optical path of the phosphor wheel. During the period in which the first color region is cut into the optical path of the laser beam, the laser beam passes through the first color region and is sensed with first laser beam timing information by the first light sensing component. The controller determines a first displacement value between the first label and the first color region boundary according to the first laser beam timing information and the reference color timing information. A projection device and a color wheel calibrating method are also provided.

Abstract: An illumination device, a projection system and operation methods thereof are provided. The illumination device includes a controller, a light source device, a phosphor wheel, a cooling device, and a temperature sensor. The light source device is configured to generate an illumination beam according to a light source control signal. The phosphor wheel is configured to convert the illumination beam into a conversion beam, adjust a rotation speed of the phosphor wheel according to a phosphor wheel control signal, and generate a rotation speed status signal. The temperature sensor is configured to sense a temperature value of the phosphor wheel to generate a temperature status signal. The cooling device is configured to adjust a cooling capacity according to a cooling control signal. The controller generates the cooling control signal according to the temperature status signal, the rotation speed status signal, and the light source control signal.

Abstract: An illumination system including a laser light source, a phosphor wheel, a first light detection module, a first light sensing device, and a controller is provided. A first color region boundary is formed between the first and second color regions of the phosphor wheel. The first light sensing component is located downstream of the optical path of the phosphor wheel. During the period in which the first color region is cut into the optical path of the laser beam, the laser beam passes through the first color region and is sensed with first laser beam timing information by the first light sensing component. The controller determines a first displacement value between the first label and the first color region boundary according to the first laser beam timing information and the reference color timing information. A projection device and a color wheel calibrating method are also provided.