IP Library Granted Patent US 12687678
Granted Patent B2
US 12687678 · App. 18/563,816 · Granted Jul 21, 2026

Rotating beam switch

Inventors: Francesco Pescarmona (Camas, WA); Giammarco Rossi (Camas, WA)
Assignee: NLIGHT, INC.
G02B6/3512G02B6/3528G02B26/0891G02B26/105
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Quick Facts
Patent No.
US 12687678
App. No.
18/563,816
Granted
Jul 21, 2026
Kind
B2
Abstract

An apparatus may steer an optical beam provided by a collimating optical module to a selected one of receiving optical modules. The apparatus may comprise an optical component to receive the optical beam provided by the collimating optical module; and a motorized rotation stage including a base and a rotating section, wherein the rotating section is restricted to rotation, relative to the base, about a single axis; wherein the optical component is mounted to the rotating section, and the apparatus further includes circuitry to control the motorized rotation stage to rotate the platform or stage amongst different rotational positions that correspond to the receiving optical modules, respectively; and wherein the optical component guides (by reflection, refraction, or the like, or combinations thereof) the optical beam to the selected one of the receiving optical modules based on a current rotational position of the rotating section. Other embodiments may be disclosed/claimed.

Claims (30)

1 . An apparatus to steer an optical beam provided by a collimating optical module to a selected one of receiving optical modules, wherein the apparatus comprises:

an optical component to receive the optical beam provided by the collimating optical module;

a motorized rotation stage including a base and a rotating section, wherein the rotating section is restricted to rotation, relative to the base, about a single axis; and

an adjustable reflector mount including:

a lower section to attach to a surface of the platform, and

an upper section hingably or pivotally coupled to the lower section, the upper section including a first side coupled to the lower section and a second different side configured to receive a back side of the reflector,

wherein the lower section is coupled to the platform and the back side of the reflector is affixed to the second side of the upper section, and wherein the reflector is adjustable, using the adjustable reflector mount, relative to the base in an axis that is different than the single axis;

wherein the optical component is mounted to the rotating section, and the apparatus further includes circuitry to control the motorized rotation stage to rotate the rotating section amongst different rotational positions that correspond to the receiving optical modules, respectively; and

wherein the optical component guides the optical beam to the selected one of the receiving optical modules based on a current rotational position of the rotating section.

2 . The apparatus of claim 1 , further comprising a base structure, wherein the collimating optical module, the receiving optical module, and the motorized rotation stage are fixably mounted to the base structure.

3 . The apparatus of claim 1 , wherein the optical component comprises a first optical component, the apparatus further comprising second optical components corresponding to the receiving optical modules, respectively, wherein the first optical component guides the optical beam to the selected one of the receiving optical modules using a corresponding one of the second optical components.

4 . The apparatus of claim 3 , wherein the second optical components comprise reflectors.

5 . The apparatus of claim 4 , wherein the reflectors comprise fixed reflectors.

6 . The apparatus of claim 4 , wherein the reflectors are mounted using additional adjustable reflector mounts.

7 . The apparatus of claim 6 , wherein the additional adjustable reflector mounts are coupled to surfaces that are stationary with respect to the base.

8 . The apparatus of claim 3 , wherein the first optical component is flanked by the second optical components.

9 . The apparatus of claim 1 , wherein the receiving optical modules are arranged in a row, wherein the row is arranged on one side of the collimating optical module.

10 . The apparatus of claim 1 , wherein the optical component reflects the optical beam.

11 . The apparatus of claim 10 , wherein the optical component comprises a dielectric or metallic mirror.

12 . The apparatus of claim 1 , wherein the optical component refracts the optical beam.

13 . The apparatus of claim 12 , wherein the optical component comprises one or more wedge prisms.

14 . The apparatus of claim 1 , wherein the motorized rotation stage comprises a single motorized rotation stage or only a single pair of motorized rotation stages.

15 . A rotating beam switch, comprising:

a motorized rotation stage including a base and a platform or a frame, wherein the rotating section is restricted to rotation, relative to the base, about a single axis;

means for guiding a collimated optical beam provided by a collimating optical module to a selected one of two or more receiving optical modules based on a current rotational position of the rotating section, wherein the collimated optical beam guiding means is mounted to the rotating section, and the rotating beam switch further includes circuitry to control the motorized rotation stage to rotate the rotating section amongst different rotational positions that correspond to the two or more receiving optical modules, respectively; and

an adjustable reflector mount including:

a lower section to attach to a surface of the platform, and

an upper section hingably or pivotally coupled to the lower section, the upper section including a first side coupled to the lower section and a second different side configured to receive a back side of the collimated optical beam guiding means,

wherein the lower section is coupled to the platform and the back side of the collimated optical beam guiding means is affixed to the second side of the upper section, and wherein the collimated optical beam guiding means is adjustable, using the adjustable reflector mount, relative to the base in an axis that is different than the single axis.

16 . The apparatus of claim 15 , wherein at least one or the two or more receiving optical modules includes a lens and an optical fiber, the lens arranged to refocus the collimated optical beam into the optical fiber.