Light processing device and system and projection equipment

The utility model provides a light processing device and system and projection equipment, and the device comprises a housing which is provided with a containing space, and the interior of the containing space is provided with at least one light trapping channel; the cover body is arranged on the shell and receives incident light so that the incident light can enter the light trapping flow channel, and the light trapping flow channel is used for absorbing the incident light and converting the incident light into heat; and the first fluid flows through the light trapping flow channel to take away heat in the light trapping flow channel. In this way, the first fluid directly exchanges heat with the interior of the light trapping flow channel, and the heat dissipation effect of the light processing device can be improved. 本申请提供一种光处理装置、系统及投影设备，其中，光处理装置包括：外壳，形成有容置空间，容置空间内设置有至少一条陷光流道；盖体，设置于外壳上并接收入射光，以使入射光进入陷光流道，陷光流道用于吸收入射光并转换为热；第一流体，流经陷光流道，以带走陷光流道内的热量。通过此种方式，第一流体直接与陷光流道内部进行热交换，能够提高光处理装置的散热效果。