Laser light system and projection equipment

Projection equipment, comprising at least two light valves and a laser light system;

• wherein the laser optical path system comprises a laser, a beam combiner, a loop guide assembly, and a fluorescence assembly;
• wherein
• the beam combiner comprises a first region and a second region, and an angle between a light-emitting direction of the laser and a lens surface of the first region is an acute angle;
• a light beam emitted by the laser comprises a first light beam passing through the first region and irradiating to the fluorescence assembly, wherein the fluorescence assembly generates a fluorescence upon excitation of the first light beam, and the fluorescence is reflected to the second region by the fluorescence assembly, and is further reflected into a direction towards a light outlet by the second region;
• and
• the light beam emitted by the laser further comprises a second light beam reflected to the loop guide assembly by the first region, wherein the second light beam is further reflected to the first region by the loop guide assembly, passes through the first region, and irradiates to the direction towards the light outlet in synchronization with the fluorescence;
• wherein the fluorescence and the second light beam converge at the light outlet to form white light;
• and
• the loop guide assembly comprises a first lens group and a first reflector;
• wherein
• the second light beam reflected by the first region is incident to the first lens group and does not pass through an optical axis of the first lens group;
• the first reflector receives and reflects the second light beam converged by the first lens group, and the second light beam is incident to the first region upon passing through the first lens group again;
• and
• a position at which the second light beam is incident to the first region is not completely overlapped with a position at which the first region reflects the second light beam.

A laser optical system, comprising:

• a laser, a beam combiner, a loop guide assembly, and a fluorescence assembly;
• wherein
• the beam combiner comprises a first region and a second region, and an angle between a light-emitting direction of the laser and a lens surface of the first region is an acute angle;
• a light beam emitted by the laser comprises a first light beam passing through the first region and irradiating to the fluorescence assembly, wherein the fluorescence assembly generates a fluorescence upon excitation of the first light beam, and the fluorescence is reflected to the second region by the fluorescence assembly, and is further reflected into a direction towards a light outlet by the second region;
• and
• the light beam emitted by the laser further comprises a second light beam reflected to the loop guide assembly by the first region, wherein the second light beam is further reflected to the first region by the loop guide assembly, passes through the first region, and irradiates to the direction towards the light outlet in synchronization with the fluorescence;
• wherein the fluorescence and the second light beam converge at the light outlet to form white light;
• and
• the loop guide assembly comprises a triangular prism, the triangular prism comprising a side surface, a first surface, and a second surface;
• wherein
• the side surface is configured to receive the second light beam reflected by the first region and direct the second light beam to the first surface, the first surface is configured to reflect the received second light beam to the second surface, and the second surface is configured to reflect the received second light beam to the side surface, wherein the reflected second light beam passes through the side surface and irradiates to the first region.