Electroactive polymer actuator lenticular system

• US 9,195,058 B2
• Filed: 03/22/2012
• Issued: 11/24/2015
• Est. Priority Date: 03/22/2011
• Status: Active Grant

• Current Assignee: Parker Intangibles LLC (Parker-Hannifin Corporation)
• Original Assignee: Parker-Hannifin Corporation
• Inventors: Zarrabi, Alireza, Schapeler, Dirk
• Primary Examiner(s): Phan, James
• Application Number:
  US14/006,471
• Publication Number:
  US 20150070740A1
• Time in Patent Office: 1,342 Days
• Field of Search: 3592091-2102, 359/221.2, 359813-814, 359/822
• US Class Current: 1/1
• CPC Class Codes: G02B 26/0875 by means of one or more refracting elements
• CPC Class Codes: G02F 1/29 for the control of the position or the direction of light beams, i.e. deflection
• CPC Class Codes: G03B 25/02 with interposed lenticular or line screen

Abstract

The present invention provides an optical system comprising a lens element, a display unit displaced transversely from the lens element, at least one actuator coupled to at least one of the lens element or the display unit and capable of changing position of the lens element relative to the display unit in a lateral direction, and an electronic control system capable of driving the at least one actuator to move in a programmed manner to control positioning of the lens element relative to the display unit.

Claims

1. An optical system comprising:

a lens element;

a display unit displaced transversely from the lens element, said display unit containing a display;

at least one actuator coupled to at least one of the lens element or the display unit and capable of changing position of the lens element relative to the display unit in a lateral direction; and

an electronic control system capable of driving the at least one actuator to move in a programmed manner to control positioning of the lens element relative to the display unit.

2. The optical system according to claim 1 further comprising at least one reflector.

3. The optical system according to claim 1 further comprising at least a second actuator capable of changing the transverse displacement between the lens element and the display unit.

4. The optical system according to claim 3, wherein the second actuator comprises an electroactive polymer actuator.

5. The optical system according to any one of claims 1 to 3, wherein the lens element comprises multiple lenses.

6. The optical system according to any one of claims 1 to 3, wherein the lens element comprises a lenticular lens.

7. The optical system according to claim 6, wherein the display comprises multiple images integrated to exhibit separately when viewed through different positions of the lenticular lens.

8. The optical system according to claim 7, wherein motion of the at least one actuator enables a user to view a sequence of images.

9. The optical system according to any one of claims 1 to 3, wherein the display comprises an array of light sources.

10. The optical system according to claim 9, wherein the light sources emit light of different colors.

11. The optical system according to claim 9, wherein the display comprises an array of light emitting diode (LED) light sources.

12. The optical system according to claim 11, wherein the array excites a phosphor layer to emit light of a color different from the color of the light emitting diode (LED) light sources.

13. The optical system according to claim 12, wherein the phosphor layer comprises regions with different phosphor compositions to emit different colors when excited by the light emitting diode (LED) light sources.

14. The optical system according to claim 10, wherein motion of the at least one actuator provides illumination comprising a mixture of different colors of the light sources based on the relative position of the array of light sources and the lens element.

15. The optical system according to any one of claims 1 to 3, wherein motion of the at least one actuator is programmed to cycle between positions of the lens element relative to the display unit at one selected from the group consisting of a constant rate, a variable rate, and a combination thereof.

16. The optical system according to any one of claims 1 to 3, wherein motion of the at least one actuator is programmed to set a fixed position of the lens element relative to the display unit.

17. The optical system according to any one of claims 1 to 3, wherein the at least one actuator comprises an electroactive polymer actuator.