Abstract: A coaxial laser light source apparatus includes at least one laser light source module, a beam homogenizer, and optical path adjusting elements. The laser light source module includes multiple laser light sources arranged along a first direction, and each of the laser light sources is configured to emit a laser light along a second direction. The first direction is substantially perpendicular to the second direction, and the laser lights have different properties. The laser lights travel along the second direction toward the beam homogenizer coaxially. The optical path adjusting elements are located between the laser light sources and the beam homogenizer, and the optical path adjusting elements are configured to adjust traveling directions of the laser lights.

Abstract: A coaxial laser light source apparatus includes at least one laser light source module, a beam homogenizer, and optical path adjusting elements. The laser light source module includes multiple laser light sources arranged along a first direction, and each of the laser light sources is configured to emit a laser light along a second direction. The first direction is substantially perpendicular to the second direction, and the laser lights have different properties. The laser lights travel along the second direction toward the beam homogenizer coaxially. The optical path adjusting elements are located between the laser light sources and the beam homogenizer, and the optical path adjusting elements are configured to adjust traveling directions of the laser lights.

Abstract: An operation method of a remote laser projection device includes emitting multiple first lights to an optical transmission module through multiple light source modules, the optical transmission module includes multiple optical fibers, and each of the light source modules includes to a plurality of optical fibers; and transmitting the first lights to the projection head through the optical fiber of the corresponding optical transmission module.

Abstract: An operation method of a remote laser projection device includes emitting a first light to an optical transmission module through at least one light source module; transmitting the first light to at least one projection head through the optical transmission module, wherein total light energy of the first light is allocated to the projection head through the optical transmission module, such that energy of a light transmitted to the projection device is E/N, and wherein E is total light energy of the at least one light module, and N is a number of the at least one projection device.

Abstract: A projecting method includes: outputting, by a projection display apparatus, a projected image to a projection screen through a shifting device, wherein the projected image includes multiple frames; outputting, by a processing circuit, a control signal to drive the shifting device to rotate multiple first angles along a first axis or to rotate multiple second angles along a second axis, wherein combination of the first and the second angles corresponds to multiple projected positions; and when the projection display apparatus outputs multiple frames sequentially, rotating the shifting device sequentially according to the control signal to make multiple frames projected to the corresponding one of projected positions, wherein a number of the first angles or the second angles is at least four.

Abstract: An operation method of a remote laser projection device includes emitting a first light to an optical transmission module through at least one light source module; transmitting the first light to at least one projection head through the optical transmission module, wherein total light energy of the first light is allocated to the projection head through the optical transmission module, such that energy of a light transmitted to the projection device is E/N, and wherein E is total light energy of the at least one light module, and N is a number of the at least one projection device.

Abstract: A projection device includes a laser source and a birefringent depolarizer. The birefringent depolarizer is a single wedge shape and is arranged in front of a projection lens. The laser source is configured to emit a laser beam to penetrate the birefringent depolarizer to be a projection beam having multiple polarization patterns different from polarization patterns of the laser beam. The projection beam is projected onto a projection screen through the projection lens. The polarization patterns are multiple different polarization directions.

Abstract: A projecting method includes: outputting, by a projection display apparatus, a projected image to a projection screen through a shifting device, wherein the projected image includes multiple frames; outputting, by a processing circuit, a control signal to drive the shifting device to rotate multiple first angles along a first axis or to rotate multiple second angles along a second axis, wherein combination of the first and the second angles corresponds to multiple projected positions; and when the projection display apparatus outputs multiple frames sequentially, rotating the shifting device sequentially according to the control signal to make multiple frames projected to the corresponding one of projected positions, wherein a number of the first angles or the second angles is at least four.

Abstract: A projection device includes a laser source and a birefringent depolarizer. The birefringent depolarizer is a single wedge shape and is arranged in front of a projection lens. The laser source is configured to emit a laser beam to penetrate the birefringent depolarizer to be a projection beam having multiple polarization patterns different from polarization patterns of the laser beam. The projection beam is projected onto a projection screen through the projection lens. The polarization patterns are multiple different polarization directions.

Abstract: We provide an optical transceiver module and the method of arranging its optical path. The invention is used to send optical signals to an optic fiber and receives optical signals emitted from the optic fiber. The optical transceiver module contains an optical transmitting device and a circuit board. One side of the optical transmitting device is equipped with an optic fiber connecting terminal to connect with an optic fiber. A filter is used to deflect optical signals emitted from the optic fiber. After the optical signals enter the input terminal, they are converted by an opto-electrical conversion unit into electrical signals that are then sent to the circuit board. Likewise, an output terminal receives electrical signals generated by the circuit board. The opto-electrical conversion unit converts the electrical signals into optical signals, which directly penetrate through the filter to send the signals to the optic fiber.