A method for collimating solid-state light emitting chip or chip array light source
A solid-state light emitting and chip array technology, applied in the field of projection display, can solve the problems of increasing the difficulty of coating, unfavorable miniaturization, loss of light energy, etc., and achieve the effect of achieving collimation effect, increasing the scope of application, and improving the transmittance
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Embodiment 1
[0034] A method for collimating a solid-state light-emitting chip or a chip-array light source, by using an all-dielectric metamaterial phase control element to realize the collimation effect on a solid-state light-emitting chip or a chip-array light source, can eliminate the use of traditional lens components. Such as figure 1 As shown, it specifically includes the following steps:
[0035] Step 1. Select a dielectric material for making a substrate and a microstructure, and the substrate is used to support the microstructure.
[0036] Both the substrate and the microstructure of this solution use high-transmittance dielectric materials, so there is no need to coat them like lens groups to improve the light source transmittance.
[0037] Step 2. Design the microstructure.
[0038] The microstructure can cover 0-2π phase modulation depth only by changing the structure size, and the microstructure can be designed for broadband phase modulation; then it can be applied to colli...
Embodiment 2
[0053] The difference between this embodiment and Embodiment 1 is that in this embodiment, if Figure 7 to Figure 8 As shown, the microstructure arrays are arranged on both sides of the substrate according to the position of a specific phase modulation depth, and the positions of the microstructure arrays on both sides are staggered.
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