Multidimensional rotary motion apparatus moving a reflective surface and method of operating same

Patent metadata

Field	Value
Publication number	US-9983400-B2
Application number	US-201615244997-A
Country	US
Kind code	B2
Filing date	Aug 23, 2016
Priority date	Aug 1, 2012
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Some embodiments provide a motion control system controlling an image projected from an underwater projection system in a water feature, pool, or spa. The system includes a rotatable base and a mirror support member hingedly coupled to the rotatable base. A first motor is coupled to the rotatable base and is configured to rotate the mirror support member in a first plane. A second motor is coupled to the rotatable base and a fixed mount, wherein the second motor is configured to rotate the rotatable base relative to the fixed mount thereby rotating the mirror support member in a second plane.

First claim

The invention claimed is:

1. A motion control system controlling an image projected from an underwater projection system in a water feature, pool, or spa, the system comprising:
a rotatable base;
a mirror support member hingedly coupled to the rotatable base;
a first motor coupled to the rotatable base and configured to rotate the mirror support member in a first plane; and
a second motor coupled to the rotatable base and a fixed mount, wherein the second motor is configured to rotate the rotatable base relative to the fixed mount thereby rotating the mirror support member in a second plane.

2. The motion control system of claim 1 further including a first linkage coupled to the first motor and the mirror support member, wherein the first motor imparts motion to the mirror support member through the first linkage.

3. The motion control system of claim 2 further including a second linkage coupled to the second motor and the fixed mount, wherein the second motor imparts motion to the rotatable base through the second linkage.

4. The motion control system of claim 1 further including a controller configured to receive position feedback from a sensor, wherein the position feedback is relative to the motion of the mirror support member in the first plane and the second plane as imparted by the first motor and second motor, respectively.

5. The motion control system of claim 4 , wherein the controller takes programmed corrections provided during or after operation of the underwater projection system and translates the correction to outputs in the first and second planes.

6. The motion control system of claim 1 further including a mirror element associated with the mirror support member and motion imparted on the mirror support member by the first motor results in vertical movement of the image relative to the water feature, fountain, pool or spa.

7. The motion control system of claim 1 further including a mirror element associated with the mirror support member and motion imparted on the mirror support member by the second motor results in horizontal movement of the image relative to the water feature, fountain, pool or spa.

8. The motion control system of claim 1 , wherein the first plane and the second plane are orthogonal to each other.

9. A motion control system controlling an image projected from an underwater projection system in a water feature, pool, or spa, the system comprising:
a projector for displaying the image;
a first motor coupled to a first cam;
a second motor coupled to a second cam; and
a mirror support member configured to move about a first moment in a first direction and about a second moment in a second direction, wherein movement in the first direction is imparted by the first motor rotating the first cam, and movement in the second direction is imparted by the second motor rotating the second cam, and wherein the first cam imparts motion directly to the mirror support member and the second cam imparts motion to the mirror support member indirectly through moving the second motor relative to a fixed mount.

10. The motion control system of claim 9 further including a mirror disposed on the mirror support member.

11. The motion control system of claim 9 further including a first shaft coupled to the first cam and the mirror support member, wherein rotating the first cam imparts motion to the mirror support member in the first direction.

12. The motion control system of claim 11 further including a second shaft coupled to the second cam and the fixed mount, wherein rotating the second cam imparts motion of the second motor relative to the fixed mount thereby imparting motion to the mirror support member in the second direction.

13. The motion control system of claim 12 further including a base, wherein the first motor and the second motor are coupled to the base.

14. The motion control system of claim 13 , wherein the mirror support member is coupled to the base and the base is configured to rotate relative to the fixed mount, wherein motion imparted to the second motor by the second cam member relative to the fixed mount rotates the base thereby imparting motion to the mirror support member in the second direction.

15. The motion control system of claim 9 , wherein motion imparted on the mirror support member by the first motor or the second motor results in vertical movement of the image relative to the water feature, fountain, pool or spa.

16. The motion control system of claim 9 , wherein motion imparted on the mirror support member by the first motor or the second motor results in horizontal movement of the image relative to the water feature, fountain, pool or spa.

17. The motion control system of claim 9 , wherein the first direction and the second direction are orthogonal to each other.

18. An underwater projection system for a water feature, the system comprising:
a projector designed to display an image in the water feature;
a motion control system having a base, a mirror hingedly coupled to the base, a first motor coupled to the base and configured to rotate the mirror in a first direction, and a second motor coupled to the base and a fixed mount, wherein the second motor is configured to rotate the base and thereby rotate the mirror in a second direction; and
a controller configured to steer the image from the projector that is reflected off the mirror of the motion control system within a defined boundary space within the water feature by controlling the motion control system.

19. The underwater projection system of claim 18 , wherein the first direction and the second direction are orthogonal to each other.

20. The underwater projection system of claim 19 , wherein rotating the mirror in the first direction results in one of vertical movement or horizontal movement of the image relative to the water feature, and rotating the mirror in the second direction results in one of vertical movement or horizontal movement of the image relative to the water feature.

Assignees

• Pentair Water Pool & Spa Inc

Inventors

• Reddy Rakesh
• Johnson Bruce
• Doyle Kevin
• Perez Gabriel

Classifications

• G02B26/0816 Primary

  by means of one or more reflecting elements · CPC title

• F16H21/54

  for conveying or interconverting oscillating or reciprocating motions · CPC title

• E04H4/148

  Lighting means · CPC title

• G02B26/101

  with both horizontal and vertical deflecting means, e.g. raster or XY scanners (colour television using laser beams scanning a display screen H04N9/3129) · CPC title

• G02B7/1821

  for rotating or oscillating mirrors · CPC title