Apparatus and method for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses

Patent metadata

Field	Value
Publication number	US-10325521-B2
Application number	US-201514672197-A
Country	US
Kind code	B2
Filing date	Mar 29, 2015
Priority date	Sep 28, 2012
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

The invention is directed to an apparatus for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses. The apparatus includes a memory for providing a first image having a motif and a first polarization direction corresponding thereto and a second image having the same motif and a second polarization direction corresponding thereto, which is different from the first polarization direction. The apparatus also includes a display device for displaying the first image with light polarized in the first polarization direction and the second image with light polarized in the second polarization direction in a superposed representation, such that the motif of the first image and the motif of the second image coincide dimensionally identically. The invention is also directed to a method for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses.

First claim

What is claimed is:

1. An apparatus for demonstrating visual impressions for a wearer of spectacles having polarizing spectacle lenses, the apparatus comprising:
a memory for making available a first image having a motif and a first polarization direction corresponding thereto;
a memory for making available a second image having said motif and a second polarization direction corresponding thereto and different from said first polarization direction;
a display unit;
computer program code stored on a non-transitory computer readable medium which, when executed by a processor, controls said display unit and causes said first image with light polarized in said first polarization direction and said second image with light polarized in said second polarization direction to he displayed on said display unit in overlapping presentation so as to cause said motif of said first image and said motif of said second image to mutually coincide identically as to shape as displayed on said display unit; and,
said program code, when executed by a processor, further causing said display unit to display said first image and said second image such that an observer perceives said first image and said second image simultaneously.

2. The apparatus of claim 1 , wherein said first image is a photographic recording of a camera having a first polarization filter arranged ahead thereof configured to polarize light in said first polarization direction and defining said first polarization direction; and, said second image is a photographic recording of a camera having a second polarization filter arranged ahead thereof and defining said second polarization direction different from said first polarization axis.

3. The apparatus of claim 1 , wherein said first image is a photographic recording of a camera having a first polarization filter arranged ahead thereof and defining said first polarization direction.

4. The apparatus of claim 1 , wherein said second image is a photographic recording of a camera having a polarization filter arranged ahead thereof and defining said second polarization direction.

5. The apparatus of claim 1 , wherein said first image and said second image differ in at least one optical characteristic.

6. The apparatus of claim 5 , wherein said optical characteristic is selected from the group including contrast, brightness, saturation and hue.

7. The apparatus of claim 1 , wherein said first image displayed is comprised of first image points arranged in the manner of fields of a single one of the colors of a chess board pattern and said second image displayed is comprised of second image points arranged in the manner of fields of another color of the chess board pattern.

8. The apparatus of claim 1 , wherein said first image is comprised of image points arranged in the manner of the fields of a chess board pattern and said second image is comprised of same image points; each of the image points displayed contains the information of corresponding image points of the first image and the information of corresponding image points of the second image; and, wherein a polarization direction corresponds to a vector addition of polarization direction vectors of the corresponding image points of the first image and of the second image which polarization direction vectors consider the intensity.

9. The apparatus of claim 1 , wherein:
a first light is supplied from a first group of predetermined regions of the display unit to an optical beam path;
a second light is supplied to the beam path from a second group of predetermined regions of the display unit; and,
said apparatus further comprises an optic component group for separating said first light from said second light in order to transmit said first light to the left eye of the wearer and said second light to the right eye of the wearer.

10. The apparatus of claim 1 , further comprising a light source for activating phototropic spectacle lenses.

11. The apparatus of claim 1 , wherein said display unit is configured to display said first image and said second image such that said first image and said second image are simultaneously perceived by both eyes of the observer.

12. A method for determining visual impressions for a wearer of spectacles having polarizing spectacle lenses, the method comprising the steps of:
providing a first image having a motif and a first polarization direction corresponding thereto;
providing a second image having said motif and a second polarization direction corresponding thereto and different from said first polarization direction; and,
executing computer program code via a processor wherein the computer program code controls a display unit and causes the display unit to display said first image with light polarized in said first polarization direction and said second image with light polarized in said second polarization direction in overlapping presentation so as to cause said motif of said first image and said motif of said second image to mutually coincide identically as to shape and so as to cause said first image and said second image to be perceived simultaneously by the wearer, wherein the computer program code is stored on a non-transitory computer readable medium.

13. The method of claim 12 , wherein a photographic recording of a camera having a polarization filter arranged ahead thereof and defining a first polarization axis is used as a first image; and, a photographic recording of a camera having a polarization filter arranged ahead thereof and defining a second polarization axis different from said first polarization axis is used as a second image.

14. The method of claim 12 , wherein a photographic recording of a camera having a polarization filter arranged ahead thereof and defining a first polarization axis is used as a first image.

15. The method of claim 12 , wherein a photographic recording of a camera having a polarization filter arranged ahead thereof and defining a second polarization axis is used as a second image.

16. The method of claim 12 , wherein said first image and said second image differ in at least one optical characteristic.

17. The method of claim 16 , wherein said optical characteristic is selected from the group including contrast, brightness, saturation and hue.

18. The method of claim 12 , wherein said first image displayed is comprised of first image points arranged in the manner of fields of a single one of the colors of a chess board pattern and said second image displayed is comprised of second image points arranged in the manner of fields of another color of the chess board pattern.

19. The method of claim 12 , wherein said first image is comprised of image points arranged in the manner of the fields of a chess board pattern and said second image is comprised of same image points; each of the image points displayed contains the information of corresponding image points of the first image and the information of corresponding image points of the second image; and, wherein a polarization direction corresponds to a vector addition of polarization direction vectors of the corresponding image points of the first image and of the second image which polarization direction vectors consider the intensity.

20. The method of claim 12 , wherein said first polarization direction is aligned horizontally and said second polarization direction is aligned vertically.

21. The method of claim 12 , further comprising the step of positioning the wearer to view the displayed images in superposed display selectively w

Assignees

• Zeiss Carl Vision Int Gmbh
• Zeiss Carl Ag

Inventors

• Pacher Peter
• Braunger Dieter

Classifications

• G01M11/02

  Testing optical properties · CPC title

• G09B23/22 Primary

  for optics · CPC title

• G02B30/25

  using polarisation techniques · CPC title

• G01M11/0264

  by using targets or reference patterns · CPC title

• G02C7/12 Primary

  Polarisers · CPC title