Abstract: A laser apparatus includes at least one electro-optic (EO) medium through which a polarized laser beam passes for N times, forming a plurality of first-pass to Nth-pass beams, by reflecting the polarized laser beam from at least one reflection mirror, and a power supplier configured to alternately provide a 1/N of a half-wave (?/2) or quarter-wave (?/4) voltage and remove the voltage to the EO medium, ? being a wavelength of the polarized laser beam. The at least one EO medium is tilted at angle ? and/or angle ? with respect to one of the plurality of first-pass to Nth-pass beams. The at least one EO medium comprises a M number of EO mediums, and the power supplier is configured to alternately provide a 1/M*N of a half-wave (?/2) or quarter-wave (?/4) voltage and remove the voltage to each of the M number of EO mediums.

Abstract: A laser system includes a plurality of laser sources and a plurality of collimating lenses. The system further includes a focus lens configured to receive laser beams outputted from the plurality of collimating lenses and focus the laser beams to at least one focal point in the core region or in the outer cladding region of the optical fiber. The optical fiber includes a core region, an inner cladding region and an outer cladding region, the optical fiber configured to output a dual laser beam comprising a main beam generated from the core region and a ring beam generated from the outer cladding region, the ring beam surrounding the main beam. Each of the plurality of collimating lenses is individually arranged at a respective position so as to adjust a location of the focal point in one of the core region or the outer cladding region of the optical fiber.

Abstract: The present invention discloses a 3D touch control-based automobile seat adjustment switch, including an insulating cover plate, a touch sensor, a base, a feedback module, a circuit board, and a module assembly cover plate. A plurality of protruding or recessed touch control regions are arranged on the insulating cover plate. A plurality of independent touch sensors are attached to the plurality of touch control regions on the insulating cover plate, to form a 3D touch assembly, and the plurality of touch sensors are all connected to the circuit board. The circuit board is assembled on the module assembly cover plate, the module assembly cover plate and the feedback module are assembled on one surface of the base, the feedback module is connected to the circuit board, and an other surface of the base is assembled on the insulating cover plate.

Abstract: A laser apparatus includes at least one electro-optic (EO) medium through which a polarized laser beam passes for N times, forming a plurality of first-pass to Nth-pass beams, by reflecting the polarized laser beam from at least one reflection mirror, and a power supplier configured to alternately provide a 1/N of a half-wave (?/2) or quarter-wave (?/4) voltage and remove the voltage to the EO medium, ? being a wavelength of the polarized laser beam. The at least one EO medium is tilted at angle ? and/or angle di with respect to one of the plurality of first-pass to Nth-pass beams. The at least one EO medium comprises a M number of EO mediums, and the power supplier is configured to alternately provide a 1/M*N of a half-wave (?/2) or quarter-wave (?/4) voltage and remove the voltage to each of the M number of EO mediums.