Optical apparatus

An optical apparatus, comprising:

• an illumination module providing a source beam;
• a first structured light generation module;
• a second structured light generation module;
• a beam splitting unit arranged between the illumination module, the first structured light generation module and the second structured light generation module, wherein when the source beam is received by the beam splitting unit, the source beam is split into a first light beam and a second light beam, wherein the first light beam is propagated in a direction toward the first structured light generation module, and the second light beam is propagated in a direction toward the second structured light generation module;
• and
• a casing with a first output port and a second output port, wherein the illumination module and the beam splitting unit are accommodated within the casing, the first structured light generation module is installed in the first output port, and the second structured light generation module is installed in the second output port,
• wherein a first structured light is generated after the first light beam passes through the first structured light generation module, and a second structured light is generated after the second light beam passes through the second structured light generation module.