METHOD FOR DESIGNING EYEGLASS LENS, METHOD FOR MANUFACTURING EYEGLASS LENS, EYEGLASS LENS, EYEGLASS LENS ORDERING DEVICE, EYEGLASS LENS ORDER RECEIVING DEVICE, AND EYEGLASS LENS ORDERING AND ORDER RECEIVING SYSTEM

• US 20200133022A1
• Filed: 12/26/2019
• Published: 04/30/2020
• Est. Priority Date: 07/03/2017
• Status: Active Grant

• Current Assignee: Nikon-Essilor Co., Ltd.
• Original Assignee: Nikon-Essilor Co., Ltd.
• Inventors: YOSHIDA, Yoshinori
• Granted Patent: US 11,754,856 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/0058 for multiple images
• CPC Class Codes: A61B 3/032 Devices for presenting test symbols or characters, e.g. test chart projectors A61B3/036 takes precedence
• CPC Class Codes: G02C 7/027 considering wearer's parameters
• CPC Class Codes: G02C 7/061 Spectacle lenses with progressively varying focal power
• CPC Class Codes: G06Q 30/0633 Lists, e.g. purchase orders, compilation or processing

Abstract

A method for designing an eyeglass lens includes: displaying an image upon a display device while maintaining a positional relationship of a face of a subject and the display device; acquiring information in which visual sensitivity of the subject is evaluated on the basis of an impression received by the subject who has viewed the image; and designing an eyeglass lens on the basis of the information in which the sensitivity is evaluated.

Claims

1. A method for designing an eyeglass lens, the method comprising:

displaying an image upon a display device while maintaining a positional relationship of a face of a subject and the display device;

acquiring information in which visual sensitivity of the subject is evaluated on the basis of an impression received by the subject who has viewed the image; and

designing an eyeglass lens on the basis of the information in which the sensitivity is evaluated.

2. The method for designing an eyeglass lens according to claim 1, wherein:

the display device is disposed at a position based upon a height of an eye of the subject.

3. The method for designing an eyeglass lens according to claim 1, wherein:

in the display of the image, a plurality of images are displayed, each having different distortion; and

in the evaluation of the sensitivity, the sensitivity of the subject to distortion is evaluated on the basis of the impressions received by the subject who has viewed the plurality of images.

4. The method for designing an eyeglass lens according to claim 3, wherein:

the plurality of images differ by at least one of distortion level of the distortion and distortion direction of the distortion.

5. The method for designing an eyeglass lens according to claim 3, wherein:

each of the images is distorted in one or a plurality of partial regions, or in all regions.

6. The method for designing an eyeglass lens according to claim 5, wherein:

in each of the plurality of partial regions, the images are mutually different with regard to at least one of the distortion level and the distortion direction.

7. The method for designing an eyeglass lens according to claim 5, wherein:

the image is distorted both in one partial region on one side from the center of the image, and in a partial region on the side opposite to the one side from the center of the image.

8. The method for designing an eyeglass lens according to claim 1, wherein:

in the display of the image, a plurality of images are displayed, each having a different range of blurring; and

in the evaluation of the sensitivity, the sensitivity of the subject to blurring is evaluated on the basis of the impressions received by the subject who has viewed the plurality of images.

9. The method for designing an eyeglass lens according to claim 8, wherein:

in the plurality of images, blurring levels of the blurring and/or regions of the blurring are different.

10. The method for designing an eyeglass lens according to claim 8, wherein:

each of the images comprises a plurality of regions whose blurring levels are mutually different, and/or blurring in which the blurring level changes continuously.

11. The method for designing an eyeglass lens according to claim 8, wherein:

adjacent to the blurring, the images comprise a region in which the blurring level changes stepwise or continuously.

12. The method for designing an eyeglass lens according to claim 8, wherein:

in the display of the image, a region in which the blurring level is relatively large is displayed so as to be disposed below a region in which the blurring level is relatively small or a region where there is no blurring; and

in the evaluation of the sensitivity, the sensitivity to blurring when the subject is looking at an object at a long distance is evaluated.

13. The method for designing an eyeglass lens according to claim 8, wherein:

in the display of the image, a region in which the blurring level is relatively large is displayed so as to be disposed above a region in which the blurring level is relatively small or a region where there is no blurring; and

in the evaluation of the sensitivity, the sensitivity to blurring when the subject is looking at an object at a short distance is evaluated.

14. The method for designing an eyeglass lens according to claim 8, wherein:

in the display of the image, a region in which the blurring level is relatively small or a region where there is no blurring is displayed so as to be disposed surrounded by a region in which the blurring level is relatively large; and

in the evaluation of the sensitivity, the sensitivity to blurring when the subject is looking at an object at an intermediate distance is evaluated.

15. The method for designing an eyeglass lens according to claim 1, wherein:

in the display of the image, a plurality of images whose positions in a portion of a field of view of the subject are different are displayed while changing over between them; and

in the evaluation of the sensitivity, the sensitivity of the subject to a direction of a line of sight at a predetermined distance is evaluated on the basis of the impressions received by the subject who has viewed the plurality of images.

16. The method for designing an eyeglass lens according to claim 15, wherein:

in the display of the image, a plurality of images are displayed at different heights; and

the sensitivity of the subject to a height of a line of sight at the predetermined distance is evaluated on the basis of the impressions received by the subject who has viewed the plurality of images.

17. The method for designing an eyeglass lens according to claim 15, wherein:

the portion of the field of view corresponds to any one region selected from among a distance area of a progressive power lens, a near area thereof and an intermediate region thereof between the distant area and the near area; and

the predetermined distance is a distance seen through the one region that has been selected.

18. The method for designing an eyeglass lens according to claim 15, wherein:

in the display of the image, a calibration image is displayed for adjusting a positional relationship between a height of an eye of the subject and a position of the image.

19. The method for designing an eyeglass lens according to claim 15, further comprising:

capturing a positional relationship image that includes the subject and an object, wherein;

in the display of the image, an image of the object is displayed as the image at a position that is set on the basis of a positional relationship between the subject and the object, obtained from the positional relationship image.

20. The method for designing an eyeglass lens according to claim 15, wherein:

in the evaluation of the sensitivity, the sensitivity of the subject to a direction of a line of sight at a short distance is evaluated on the basis of the impressions received by the subject who has viewed the images; and

the images are images of at least one selected from a portable telephone, a book, and a newspaper.

21. The method for designing an eyeglass lens according to claim 15, wherein:

in the evaluation of the sensitivity, the sensitivity of the subject to a direction of a line of sight at an intermediate distance is evaluated on the basis of the impressions received by the subject who has viewed the images; and

the images are images of at least one selected from a personal computer, a tablet terminal, and a musical score.

22. The method for designing an eyeglass lens according to claim 1, wherein:

the images are processed images obtained by processing an image in which at least a portion of surroundings of the subject have been captured.

23. The method for designing an eyeglass lens according to claim 1, wherein:

the images are processed images obtained by processing an image depicting a virtual space.

24. The method for designing an eyeglass lens according to claim 1, further comprising:

movement detection of detecting movement of the subject; and

image changing of changing the images on the basis of movement of the subject that has been detected.

25. The method for designing an eyeglass lens according to claim 1, further comprising:

detecting a direction of a line of sight of the subject who has viewed the image, wherein;

in the evaluation of the sensitivity, the sensitivity of the subject is evaluated on the basis of the direction of the line of sight.

26. The method for designing an eyeglass lens according to claim 1, wherein:

in the display of the image, a right eye image and a left eye image that are mutually different are displayed to the right eye and to the left eye of the subject, respectively.

27. The method for designing an eyeglass lens according to claim 26, wherein:

parallax is present between the right eye image and the left eye image for enabling stereoscopic vision.

28. A method for manufacturing an eyeglass lens, in which an eyeglass lens is manufactured that has been designed according to a method for designing an eyeglass lens according to claim 1.

29. An eyeglass lens, manufactured according to the method for manufacturing an eyeglass lens of claim 28.

30. An eyeglass lens ordering device, comprising:

an input unit that inputs information in which visual sensitivity of a subject is evaluated on the basis of an impression received by the subject who has viewed an image displayed while maintaining a positional relationship between a face of the subject and a display device; and

a communication unit that transmits the information inputted via the input unit, or a design parameter calculated on the basis of the information, to an eyeglass lens order receiving device.

32. An eyeglass lens ordering and order receiving system, comprising:

the eyeglass lens ordering device according to claim 30; and

an eyeglass lens order receiving device comprising a reception unit that receives information relating to visual sensitivity of a subject, or a design parameter calculated on the basis of the information, the visual sensitivity being evaluated on the basis of an impression received by the subject who has viewed an image displayed while maintaining a positional relationship between a face of the subject and a display device and a design unit that designs an eyeglass lens on the basis of the information or the design parameter.

31. An eyeglass lens order receiving device, comprising:

a reception unit that receives information relating to visual sensitivity of a subject, or a design parameter calculated on the basis of the information, the visual sensitivity being evaluated on the basis of an impression received by the subject who has viewed an image displayed while maintaining a positional relationship between a face of the subject and a display device; and

a design unit that designs an eyeglass lens on the basis of the information or the design parameter.