IP Library Granted Patent US 7,517,081
Granted Patent B2
US 7,517,081 · App. 11/491,001 · Granted Apr 14, 2009

Low-cost circular polarizing eyewear

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 7,517,081
App. No.
11/491,001
Granted
Apr 14, 2009
Kind
B2
Abstract

A method and system of providing circularly polarized eyewear is provided. The eyewear comprises substantially rigid material configured to maintain lensing material, such as card stock or plastic. The lensing material comprises polarizing lensing material located proximate the substantially rigid material, and retarder lensing material matched to the polarizing lensing material. The retarder lensing material is positioned adjacent to the polarizing lensing material such that each eye of a user sees an intended image, and an unintended image is blocked thereby when used in conjunction with suitably polarization encoded projected images. The polarizing lensing material and retarder lensing material are fixedly maintained in association with the substantially rigid material and are configured to be provided free of lamination.

Claims (33)

1. A set of circularly polarized eyewear comprising:

substantially rigid material configured to maintain lensing material;

polarizing lensing material located proximate the substantially rigid material; and

retarder lensing material matched to the polarizing lensing material and positioned adjacent to the polarizing lensing material such that each eye of a user sees an intended image, and an unintended image is blocked thereby when used in conjunction with suitably polarization encoded projected images;

wherein the polarizing lensing material and retarder lensing material are fixedly maintained in association with the substantially rigid material and are configured to be provided free of lamination.

2. The eyewear of claim 1 , wherein the substantially rigid material comprises stock formed from at least one from a group comprising paper and cardboard, and wherein the substantially rigid material comprises two substantially matched pieces.

3. The eyewear of claim 2 , wherein the polarizer lensing material is fixedly mounted to a first matched piece and the retarder lensing material is fixedly mounted to a second matched piece.

4. The eyewear of claim 3 , further comprising additional material interposed between the polarizer lensing material and the retarder lensing material.

5. The eyewear of claim 3 , wherein polarizing lensing material and retarder lensing material are fixedly mounted to the substantially rigid material using adhesive.

6. The eyewear of claim 1 , wherein the substantially rigid material is formed from plastic.

7. The eyewear of claim 1 , wherein polarizing lensing material comprises a plurality of polarized pieces and each polarized piece is provided in a first polarization orientation, and retarder lensing material comprises a plurality of retarder pieces each oriented in a different orientation from each other and from the first polarization orientation.

8. A method for constructing circularly polarized eyewear comprising:

providing substantially rigid material; and

providing polarizing lensing material with retarder lensing material free of lamination by fixedly maintaining the polarizing lensing material and the retarder lensing material in association with said substantially rigid material;

wherein said polarizing lensing material and said retarder lensing material enable each eye of a user to receive an intended image and an unintended image is blocked when used in conjunction with suitably polarization encoded projected images.

9. The method of claim 8 , wherein the substantially rigid material comprises stock formed from at least one from a group comprising paper and cardboard, and wherein the substantially rigid material comprises two substantially matched pieces.

10. The method of claim 9 , wherein providing lensing material comprises:

fixedly mounting the polarizing lensing material to a first matched piece; and

fixedly mounting the retarder lensing material to a second matched piece.

11. The method of claim 10 , further comprising providing additional material between the polarizer lensing material and the retarder lensing material.

12. The method of claim 10 , wherein polarizing lensing material and retarder lensing material are fixedly mounted to the substantially rigid material using adhesive.

13. The method of claim 8 , wherein the substantially rigid material is formed from plastic.

14. The method of claim 8 , wherein polarizing lensing material comprises a plurality of polarized pieces and each polarized piece is provided in a first polarization orientation, and retarder lensing material comprises a plurality of retarder pieces each oriented in a different orientation from each other and from the first polarization orientation.

15. An apparatus comprising:

substantially rigid material configured to receive and maintain lensing material;

polarizing lensing material located proximate the substantially rigid material; and

retarder lensing material matched to the polarizing lensing material and positioned adjacent to the polarizing lensing material;

wherein the polarizing lensing material and retarder lensing material are fixedly maintained in association with the substantially rigid material and are configured to be provided free of lamination to form circular polarizing eyewear.

16. The apparatus of claim 15 , wherein the substantially rigid material comprises stock formed from at least one from a group comprising paper and cardboard, and wherein the substantially rigid material comprises two substantially matched pieces.

17. The apparatus of claim 16 , wherein the polarizer lensing material is fixedly mounted to a first matched piece and the retarder lensing material is fixedly mounted to a second matched piece.

18. The apparatus of claim 17 , further comprising additional material interposed between the polarizer lensing material and the retarder lensing material.

19. The apparatus of claim 15 , wherein the substantially rigid material is formed from plastic.

20. The apparatus of claim 15 , wherein polarizing lensing material comprises a plurality of polarized pieces and each polarized piece is provided in a first polarization orientation, and retarder lensing material comprises a plurality of retarder pieces each oriented in a different orientation from each other and from the first polarization orientation.

Assignments (9)
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 047740/0085 Recorded Dec 4, 2020
From: CORTLAND CAPITAL MARKET SERVICES, LLC
To: RHOMBUS INTERMEDIATE HOLDINGS, LP; REALD INC.; COLORLINK, INC.; REALD DDMG ACQUISITION, LLC; REALD SPARK, LLC
Reel/Frame 054593/0247 →
SECURITY INTEREST Recorded May 11, 2020
From: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
To: HPS INVESTMENT PARTNERS, LLC, AS THE SUCCESSOR-IN-INTEREST
Reel/Frame 052622/0104 →
ASSIGNMENT OF SECURITY INTEREST IN COLLATERAL Recorded May 11, 2020
From: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
To: CORTLAND CAPITAL MARKET SERVICES LLC, AS THE SUCCESSOR COLLATERAL AGENT
Reel/Frame 052623/0086 →
SECURITY INTEREST Recorded Dec 7, 2018
From: REALD INC.; RHOMBUS INTERMEDIATE HOLDINGS, LP; REALD HOLDINGS, INC; REALD LUXE, LLC; REALD SPARK, LLC; COLORLINK, INC.; REALD DDMG ACQUISITION, LLC
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 047740/0085 →
RELEASE OF SECURITY INTEREST Recorded Dec 7, 2018
From: HPS INVESTMENT PARTNERS, LLC, AS COLLATERAL AGENT
To: REALD INC.; STEREOGRAPHICS CORPORATION; COLORLINK, INC.; REALD DDMG ACQUISITION, LLC
Reel/Frame 047741/0621 →
SECURITY INTEREST Recorded Dec 5, 2018
From: REALD INC.; RHOMBUS INTERMEDIATE HOLDINGS, LP; REALD HOLDINGS, INC; REALD LUXE, LLC; REALD SPARK, LLC; COLORLINK, INC.; REALD DDMG ACQUISITION, LLC
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 047723/0767 →
SECURITY INTEREST Recorded Mar 24, 2016
From: REALD INC.; STEREOGRAPHICS CORPORATION; COLORLINK INC.; REALD DDMG ACQUISITION, LLC
To: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC
Reel/Frame 038243/0526 →
MERGER Recorded Apr 27, 2010
From: REAL D
To: REALD INC.
Reel/Frame 024294/0658 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 16, 2006
From: LIPTON, LENNY; ARCHER, ROD
To: REAL D
Reel/Frame 018424/0190 →