IP Library Granted Patent US 12,665,482
Granted Patent B2
US 12,665,482 · App. 17/809,156 · Granted Jun 23, 2026

Moving magnet tilt actuator

Inventors: Steven C. Palomino (McKinney, TX); Mikhail Godkin (San Diego, CA)
Assignee: Raytheon Company
H02K41/0358G02B7/1821
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,665,482
App. No.
17/809,156
Filed
Jun 27, 2022
Granted
Jun 23, 2026
Kind
B2
Examiner
JONES, JAMES
Art Unit
2872
USPC
359/307
Abstract

A moving magnet voice coil actuator includes a bobbin that defines a non-straight opening for receiving a magnetic piece. The bobbin may be additively manufactured to a desired shape. The moving magnetic piece may be a curved piece that has a shape that corresponds to the shape of the opening. The magnetic piece may include a stack of magnets, which may be tapered, to allow limited tilting movement of the magnetic piece within the opening. The actuator may be part of a pair of actuators for tilting an object, for example a mirror, about a pivot point. The pair of actuators may be part of a system that includes an additional pair of actuators configured to tilt the object in a second direction that is different from the first direction.

Claims (47)

1 . An actuator comprising:

a moving magnetic piece;

a bobbin defining a non-straight opening through which the moving magnetic piece moves;

a first wire coil around a first length of the bobbin; and

a second wire coil around a second length of the bobbin.

2 . The actuator of claim 1 , wherein the non-straight opening is a curved opening.

3 . The actuator of claim 1 , wherein the non-straight opening is a kinked opening.

4 . The actuator of claim 1 , wherein the bobbin is an aluminum bobbin.

5 . The actuator of claim 3 , wherein the kinked opening comprises a first straight segment angled in a first direction and a second straight segment angled in a second direction different than the first direction.

6 . The actuator of claim 1 , wherein the first wire coil and the second wire coil are configured to be independently controlled.

7 . The actuator of claim 1 , wherein the magnetic piece includes a stack of magnets.

8 . The actuator of claim 7 , wherein the stack of magnets has a curved shape.

9 . The actuator of claim 7 , wherein:

the magnetic piece includes pole pieces on ends of the stack of magnets; and

the magnetic piece includes an additional pole piece between the pole pieces on the ends of the stack.

10 . The actuator of claim 7 , wherein the stack of magnets is a tapered stack of magnets, with magnets varying in width along the stack.

11 . The actuator of claim 10 , wherein the magnets include a narrowest magnet at a free end of the magnetic piece.

12 . The actuator of claim 1 , wherein the magnetic piece includes an arced magnet.

13 . An actuator system comprising:

a first actuator that includes:

a moving magnetic piece;

a bobbin defining a non-straight opening through which the moving magnetic piece moves;

a first wire coil around a first length of the bobbin; and

a second wire coil around a second length of the bobbin; and

a second actuator.

14 . The actuator system of claim 13 , further comprising a third actuator used in combination with the first actuator and the second actuator;

wherein the first actuator, the second actuator, and the third actuator are disposed around a pivot point;

wherein the first actuator is configured to tilt an object in a first direction;

wherein the second actuator is configured to tilt the object in a second direction different from the first direction; and

wherein the third actuator is configured to tilt the object in a third direction different from the first direction and the second direction.

15 . The actuator system of claim 13 , wherein the actuator system has the first actuator and the second actuator on opposite sides of a pivot point, the first actuator and the second actuator being a first pair of actuators configured to tilt an object about the pivot point.

16 . The actuator system of claim 15 , further comprising a third actuator and a fourth actuator, the third actuator and the fourth actuator being a second pair of actuators configured to tilt the object about the pivot point;

wherein the first pair of actuators is configured to tilt the object in a first direction;

wherein the second pair of actuators is configured to tilt the object in a second direction; and

wherein the first direction is different from the second direction.

17 . The actuator system of claim 16 , wherein the first direction is perpendicular to the second direction.

18 . The actuator system of claim 16 , wherein:

the first pair of actuators is configured to tilt the object a first range of angles in the first direction; and

the second pair of actuators is configured to tilt the object a second range of angles in the second direction, with the second range of angles different from the first range of angles.

19 . An actuator system comprising:

multiple actuators configured to tilt a mirror;

wherein each of the actuators includes:

a moving magnetic piece;

a bobbin defining a non-straight opening through which the moving magnetic piece moves;

a first wire coil around a first length of the bobbin; and

a second wire coil around a second length of the bobbin.

20 . The actuator system of claim 19 , wherein the first wire coil and the second wire coil are configured to be independently controlled.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2023
From: PALOMINO, STEVEN CRAIG; GODKIN, MIKHAIL
To: RAYTHEON COMPANY
Reel/Frame 063077/0435 →
Continuity (1)
Related Publication 20230421038A1 · Dec 28, 2023
References Cited (15)
US 6775043B1 · Leung · 2004 [cited by applicant]
US 10203475B2 · Balaban · 2019 [cited by examiner]
US 10473889B2 · Li et al. · 2019 [cited by applicant]
US 10488631B2 · Bachar et al. · 2019 [cited by applicant]
US 20200128164A1 · Balaban et al. · 2020 [cited by applicant]
US 20200333555A1 · Wu et al. · 2020 [cited by applicant]
US 20210048650A1 · Yedid et al. · 2021 [cited by applicant]
US 20210141191A1 · Böhme · 2021 [cited by applicant]
CN 109510425A · 2019 [cited by applicant]
CN 110262036B · 2020 [cited by applicant]
CN 113341533A · 2021 [cited by applicant]
JP 2001075031A · 2001 [cited by applicant]
KR 102374619B1 · 2022 [cited by applicant]
WO 2003065080A2 · 2003 [cited by applicant]
International Search Report and Written Opinion issued for corresponding International Application No. PCT/US2023/015882, mailed Jul. 6, 2023. [cited by applicant]