Abstract: A method for adjusting a projection device and a projection system are provided. A projection device is driven to project an image on a projection target. An image-capturing device is driven to perform image capturing toward the projection target to obtain a captured image. The captured image includes a target object corresponding to the image. A projection position of the target object in the captured image is calculated based on the target object and the captured image. An output power of an illumination light source module of the projection device is adjusted based on the projection position and an ambient luminance.

Abstract: A control system, a control method, and a display apparatus included in a control system are provided. The control system includes a client apparatus and a display apparatus controlled by the client apparatus. The display apparatus is connected to a network and generates and displays an access object. The client apparatus is connected to the network, has a browser, captures the access object, and is connected to the display apparatus through the network according to information of the access object. The display apparatus provides an operation interface to the client apparatus through the network to display the operation interface in the browser of the client apparatus. The operation interface generates a control command based on operation performed therein by the client apparatus. The display apparatus receives the control command generated by the operation interface through the network, and performs an action according to the control command.

Abstract: A projection device and an operation method of the projection device are provided. The projection device includes a driver, a LED module, a current sensor, and a controller. The driver generates a driving current signal according to a control signal. The LED module provides an output light beam in response to the driving current signal. The current sensor senses a driving current flowing through the LED module to generate a sensing signal. The controller generates the control signal according to a current calibration parameter and a first control parameter, and determines whether a current value of the driving current flowing through the LED module is in a target driving current value range. When the current value of the driving current is not in the target drive current value range, the controller changes the first control parameter to adjust the control signal.

Abstract: A light source module comprises a first light source, a second light source, a first heat sink structure, and a second heat sink structure. The second light source disposed downstream of a main airflow flowing through the first light source module. The first heat sink structure has a plurality of first heat sink fins. The second heat sink structure has a plurality of second heat sink fins, wherein the first light source and the second light source are disposed along a first direction. The first heat sink structure and the second heat sink structure are disposed along the first direction, the first heat sink fins are arranged along the first direction, the second heat sink fins are arranged along a second direction, and the first direction is different from the second direction. A projection apparatus comprising the light source module is also provided.

Abstract: A light source module comprises a first light source, a second light source, a first heat sink structure, and a second heat sink structure. The second light source disposed downstream of a main airflow flowing through the first light source module. The first heat sink structure has a plurality of first heat sink fins. The second heat sink structure has a plurality of second heat sink fins, wherein the first light source and the second light source are disposed along a first direction. The first heat sink structure and the second heat sink structure are disposed along the first direction, the first heat sink fins are arranged along the first direction, the second heat sink fins are arranged along a second direction, and the first direction is different from the second direction. A projection apparatus comprising the light source module is also provided.