Rotatable mirror assemblies and light detection and ranging systems containing rotatable mirror assemblies are described herein. An example rotatable mirror assembly may include (1) a housing having a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, and (2) a set
Rotatable mirror assemblies and light detection and ranging systems containing rotatable mirror assemblies are described herein. An example rotatable mirror assembly may include (1) a housing having a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, and (2) a set of reflective surfaces, where each reflective surface in the set is coupled to the top end of the housing and the bottom end of the housing such that each reflective surface possesses limited freedom of movement with respect to the housing.
대표청구항▼
1. An apparatus comprising: a housing comprising a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, wherein the top end of the housing and the bottom end of the housing each comprise one or more female coupling parts; anda set of reflective surfaces, wherein each
1. An apparatus comprising: a housing comprising a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, wherein the top end of the housing and the bottom end of the housing each comprise one or more female coupling parts; anda set of reflective surfaces, wherein each reflective surface is non-rigidly coupled to the top end of the housing and the bottom end of the housing by sizing the reflective surface to be smaller than a vertical distance between the top end and bottom end and including at least one male coupling part that extends vertically from the reflective surface into a corresponding one of the female coupling parts at the top end of the housing and at least one male coupling part that extends vertically from the reflective surface into a corresponding one of the female coupling parts at the bottom end of the housing, such that each reflective surface possesses limited freedom of vertical movement with respect to the housing. 2. The apparatus of claim 1, wherein each male coupling part is sized to be smaller than the corresponding female coupling part such that a corresponding reflective surface possesses limited freedom of lateral movement with respect to the housing. 3. The apparatus of claim 2 further comprising at least one spring disposed between each reflective surface and the housing, wherein each male coupling part is further sized to be smaller than the corresponding female coupling part such that the corresponding reflective surface possesses freedom of movement towards and away from a center of the housing,wherein the at least one spring provides resistance against movement of the corresponding reflective surface towards the center of the housing. 4. The apparatus of claim 1 wherein each reflective surface defines a respective plane, and wherein each reflective surface is non-rigidly coupled to the housing such that the respective plane of each reflective surface is positioned at a different angle to the longitudinal axis. 5. The apparatus of claim 1 wherein each reflective surface does not contact any other reflective surface in the set. 6. A light-detection and ranging (LIDAR) system comprising: a mirror assembly, the mirror assembly comprising: a housing comprising a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, wherein the top end of the housing and the bottom end of the housing each comprise one or more female coupling parts; anda set of reflective surfaces, wherein each reflective surface is non-rigidly coupled to the top end of the housing and the bottom end of the housing by sizing the reflective surface to be smaller than a vertical distance between the top end and bottom end and including at least one male coupling part that extends vertically from the reflective surface into a corresponding one of the female coupling parts at the top end of the housing and at least one male coupling part that extends vertically from the reflective surface into a corresponding one of the female coupling parts at the bottom end of the housing, such that each reflective surface possesses limited freedom of vertical movement with respect to the housing;at least one laser diode configured to emit a laser signal, wherein the mirror assembly is positioned to redirect the laser signal; andat least one signal receiver configured to receive a reflected laser signal, wherein the reflected laser signal corresponds to the emitted laser signal. 7. The system of claim 6, wherein each male coupling part is sized to be smaller than the corresponding female coupling part such that a corresponding reflective surface possesses limited freedom of lateral movement with respect to the housing. 8. The system of claim 7 further comprising: a set of springs disposed between each reflective surface and either the top end of the housing or the bottom end of the housing, wherein each spring constrains movement of a corresponding reflective surface towards the center of the housing,wherein each spring is disposed such that a middle portion of the spring contacts the corresponding reflective surface to constrain movement of the corresponding reflective surface towards the center of the housing. 9. The system of claim 6 wherein each reflective surface defines a respective plane, and wherein each reflective surface is non-rigidly coupled to the housing such that the respective plane of each reflective surface is at a different angle to the longitudinal axis. 10. The system of claim 6 wherein each reflective surface does not contact any other reflective surface in the set. 11. The system of claim 6, wherein each male coupling part is further sized to be smaller than the corresponding female coupling part such that the corresponding reflective surface possesses freedom of movement towards and away from a center of the housing. 12. The system of claim 11, further comprising at least one spring disposed between each reflective surface and the housing, wherein the at least one spring provides resistance against movement of the corresponding reflective surface towards the center of the housing. 13. A method comprising: emitting, via at least one laser diode, a laser signal;redirecting the emitted laser signal via a mirror assembly, the mirror assembly comprising: a housing comprising a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, wherein the top end of the housing and the bottom end of the housing each comprise one or more female coupling parts; anda set of reflective surfaces, wherein each reflective surface is non-rigidly coupled to the top end of the housing and the bottom end of the housing by sizing the reflective surface to be smaller than a vertical distance between the top end and bottom end and including at least one male coupling part that extends vertically from the reflective surface into a corresponding one of the female coupling parts at the top end of the housing and at least one male coupling part that extends vertically from the reflective surface into a corresponding one of the female coupling parts at the bottom end of the housing, such that each reflective surface possesses limited freedom of vertical movement with respect to the housing; andreceiving, via at least one signal receiver, a reflected laser signal, wherein the reflected laser signal corresponds to the emitted laser signal. 14. The method of claim 13, wherein each male coupling part is sized to be smaller than the corresponding female coupling part such that a corresponding reflective surface possesses limited freedom of lateral movement with respect to the housing. 15. The method of claim 14 wherein the mirror assembly further comprises at least one spring disposed between each reflective surface and the housing, wherein each male coupling part is further sized to be smaller than the corresponding female coupling part such that the corresponding reflective surface possesses freedom of movement towards and away from a center of the housing,wherein the at least one spring provides resistance against movement of the corresponding reflective surface towards the center of the housing. 16. The method of claim 13 wherein each reflective surface defines a respective plane, and wherein each reflective surface is non-rigidly coupled to the housing such that the respective plane of each reflective surface is positioned at a different angle to the longitudinal axis. 17. The method of claim 13 wherein each reflective surface does not contact any other reflective surface in the set. 18. The apparatus of claim 1 wherein the limited freedom of vertical movement with respect to the housing for each reflective surface is less than one millimeter. 19. The system of claim 6 wherein the limited freedom of vertical movement with respect to the housing for each reflective surface is less than one millimeter. 20. The method of claim 13 wherein the limited freedom of vertical movement with respect to the housing for each reflective surface is less than one millimeter.
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