Light guide, laser light source and laser display system
A technology of light guides and light guide rods, applied in light guides, optical fiber light guides, light guides of lighting systems, etc., can solve the problems that the device is not suitable for mass production, the manufacturing process of the light guide plate module is complicated, and the acrylic plate is not resistant to high temperature, etc., to improve the picture High quality, improved viewing comfort, and low cost effects
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Embodiment 1
[0033] Such as figure 1 As shown, the light guide provided in this embodiment is a light guide rod with variable diameter. The radial size of the light guide rod changes gradually along the propagation direction of the optical path for multiple times, and the multiple changes are: from large to small and from small to large multiple times or From small to large and multiple times from large to small, the radial size of the light guiding rod can change from 0.1mm to 10cm. Before the light guiding rod is set in the laser source or the laser display system, the shape of its variable diameter has been made.
Embodiment 2
[0035] The light guide provided in this embodiment is a variable-diameter optical fiber. The radial size of the optical fiber changes gradually along the propagation direction of the optical path for multiple times, and the multiple changes are: from large to small and from small to large multiple times or from small to large Large and changed multiple times from large to small, the range of the radial size of the optical fiber is: 0.01 μm to 10 μm. Before the optical fiber is arranged in the laser source or the laser display system, the shape of the variable diameter has been made.
Embodiment 3
[0037] Such as figure 2 As shown, the laser light source provided in this embodiment includes a laser module and a light guide whose radial size gradually changes multiple times along the propagation direction of the light path, and the light guide is arranged on the output light path of the laser module. Atoms are stimulated to emit photons, and the laser is a photon queue composed of these photons. The photons in the laser have the same frequency, phase and polarization state, so the laser has the characteristics of good monochromaticity, good directionality, and good coherence. After the laser light emitted by the laser unit in the laser module enters the light guide, because the radial size of the light guide changes gradually along the propagation direction of the optical path for many times, the laser light will randomly refract and scatter when propagating in the light guide, and the optical path of the laser light will change. Change, thereby changing the phase of the...
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