Production method and device of projection structural light
A generation method and structured light technology, applied in optics, optical components, instruments, etc., can solve problems such as difficulty in generating sinusoidal structured light, phase shift speed and reliability limitations, poor stability, etc., to achieve good controllability and universal application High performance, strong anti-interference ability and good stability
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[0011] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0012] as attached figure 1 As shown, the continuous laser beam generated by the laser 101 is divided into two parallel beams with equal or nearly equal intensity after passing through the beam splitter 102 . They respectively enter the acousto-optic modulators 103 and 104 to generate first-order diffracted light. They will leave the AOM at a small angle proportional to the frequency of the AOM drive signal. An optical wedge as a beam direction fine tuner is used to adjust the angle between two beams. Two beams of parallel light are obtained after passing through optical wedges 105 and 106 , and two beams of light are obtained after passing through a dual spatial filter 107 and entering a beam combiner 108 . The beam combiner 108 has the same structure as the beam splitter 102, but used in reverse. After they are focused by the positive lens 109, t...
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