Micro-mechanical space optical modulator
A spatial light modulator and micro-mechanical technology, applied in optics, instruments, optical components, etc., can solve the problems of small number of channels, reduced optical path stability and response speed, and unfavorable large-scale applications.
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[0056] Example 1
[0057] This embodiment is a micromechanical spatial light modulator driven by an electrostatic comb.
[0058] Refer to Figure 13 The micro-mechanical spatial light modulator is composed of a period adjustable grating and a micro torsion mirror. The period adjustable grating includes a grating device layer 6 and a grating insulating layer 5 from top to bottom; the micro torsion mirror From top to bottom, it includes the micro-twisted mirror device layer 3, the micro-twisted mirror insulating layer 2 and the micro-twisted mirror base layer I; the period-tunable grating and the micro-twisted mirror are bonded by the grating insulating layer 5 and the micro-twisted mirror device layer 3 One
[0059] Refer to Figure 14 with Figure 15 The micro-torsion mirror device layer 3 includes a movable part and a fixed part that are separated from each other. The movable part and the fixed part are separated by the device layer insulating groove 31. The movable part includes t...
Example Embodiment
[0066] Example 2
[0067] Refer to Figure 21 The micro-mechanical spatial light modulator of this embodiment is composed of a period adjustable grating and a micro torsion mirror, wherein the micro torsion mirror is driven by an electrostatic flat plate, and the period adjustable grating is a thermal drive. The period tunable grating includes a grating device layer 6 and a grating insulating layer 5 from top to bottom; the micro twisted mirror includes a micro twisted mirror device layer 3, a micro twisted mirror insulating layer 2 and a micro twisted mirror from top to bottom. Torsion mirror base layer 1; the period-tunable grating and the micro-torsion mirror are bonded into one body through the grating insulating layer 5 and the micro-torsion mirror device layer 3; at the same time, an electrode base layer 4 is bonded under the micro-torsion mirror base layer 1;
[0068] Refer to Figure 22 The micro-torsion mirror device layer 3 includes a movable part and a fixed part that ar...
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