Spectacle wearing parameter measurement system, measurement program, measurement method thereof, and manufacturing method of spectacle lens

Patent metadata

Field	Value
Publication number	US-10955690-B2
Application number	US-201615547953-A
Country	US
Kind code	B2
Filing date	Mar 10, 2016
Priority date	Mar 10, 2015
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

To perform measurement in which a load on a subject is reduced. To provide a spectacle wearing parameter measurement system including: an information processing unit configured to associate a size of an appearance of at least a part of actual spectacles with a size of an appearance of at least a part of each of the spectacles in an imaging result of imaging a subject wearing the actual spectacles as an imaging target, and obtain a spectacle wearing parameter from the imaging result and the related art of the system.

First claim

The invention claimed is:

1. A spectacle wearing parameter measurement system comprising a processor configured to serve at least as an information processing unit configured to associate a size of an appearance of at least a part of an actual spectacle frame, the size being obtained by size taking or being known, with a size of an appearance of at least the part of the spectacle frame in an imaging result of imaging a subject wearing the actual spectacle frame as an imaging target, and obtain a spectacle wearing parameter from the imaging result based on the association.

2. The spectacle wearing parameter measurement system according to claim 1 , wherein the spectacle frame is in a state where no spectacle lenses are mounted in the spectacle frame, or where dummy lenses are mounted in the spectacle frame.

3. The spectacle wearing parameter measurement system according to claim 2 , wherein the information processing unit uses the imaging result to obtain a frame cornea vertex distance as a distance between a corneal vertex of the subject and the spectacle frame.

4. The spectacle wearing parameter measurement system according to claim 3 , wherein the size of the appearance is a distance between a top end and a lower end of an outer periphery of a spectacle lens mounting part of the spectacle frame.

5. The spectacle wearing parameter measurement system according to claim 4 , further comprising:
an imaging camera unit; and
a display screen unit configured to display the imaging result as an image,
wherein the display screen unit functions as an imaging finder and a touch interface each capable of freely displaying, as an image, the imaging target and the imaging result, and the imaging result is displayed by a function of the imaging finer included in the display screen unit.

6. The spectacle wearing parameter measurement system according to claim 5 , wherein the distance in the actual spectacle frame is obtained by taking the size of the actual spectacle frame placed on the display screen unit by a function of the touch interface included in the display screen unit.

7. The spectacle wearing parameter measurement system according to claim 5 , wherein the association is calibration.

8. The spectacle wearing parameter measurement system according to claim 7 , further comprising an operation unit configured to exercise a function of the touch interface included in the display screen unit and capable of freely specifying measurement reference points at an end in an upper direction of an outer periphery of the spectacle frame and an end in a lower direction of the outer periphery of the spectacle frame at a spectacle lens mounting part of the spectacle frame worn by the subject, in the imaging result of front viewed by the subject displayed on the display screen unit,
wherein the information processing unit performs the calibration based on a distance between the measurement reference points specified by the operation unit.

9. The spectacle wearing parameter measurement system according to claim 1 , wherein the spectacle wearing parameter measurement system is a portable terminal device.

10. A non-transitory computer-readable storage medium storing a program for causing a computer to execute a process, comprising:
associating a size of an appearance of at least a part of an actual spectacle frame, the size being obtained by size taking or being known, with a size of an appearance of at least the part of the spectacle frame in an imaging result of imaging a subject wearing the actual spectacle frame as an imaging target; and
obtaining a spectacle wearing parameter from the imaging result based on the association.

11. A spectacle wearing parameter measurement method comprising:
an imaging step of imaging a subject wearing an actual spectacle frame; and
a measurement step of associating a size of an appearance of at least a part of the actual spectacle frame, the size being obtained by size taking or being known, with a size of an appearance of at least the part of the spectacle frame in an imaging result, and obtaining a spectacle wearing parameter based on the association.

12. The spectacle wearing parameter measurement method according to claim 11 , wherein the size taking includes taking, by a touch interface function included in a display screen unit configured to display, as an image, the imaging result obtained in the imaging step, a size of a distance between a top end and a lower end of an outer periphery of the spectacle frame at a spectacle lens mounting part of the actual spectacle frame placed on the display screen unit.

13. The spectacle wearing parameter measurement method according to claim 11 , wherein in the measurement step, calibration is performed as the association based on a distance between measurement reference points by specifying the measurement reference points at an end in an upper direction of an outer periphery of the spectacle frame and an end in a lower direction of the outer periphery of the spectacle frame at the spectacle lens mounting part of the spectacle frame worn by the subject in the imaging result of front viewed by the subject displayed on the display screen unit, by using a touch interface function included in the display screen unit.

14. A manufacturing method of a spectacle lens, comprising:
an imaging step of imaging a subject wearing an actual spectacle frame;
a measurement step of associating a size of an appearance of at least a part of the actual spectacle frame, the size being obtained by size taking or being known, with a size of an appearance of at least the part of the spectacle frame in an imaging result, and obtaining a spectacle wearing parameter from the imaging result based on the association; and
a manufacturing step of manufacturing a spectacle lens based on the spectacle wearing parameter.

15. The spectacle wearing parameter measurement system according to claim 1 , wherein the size of the appearance of the at least the part of the actual spectacle frame is an actual measurement of the size in real space.

16. The spectacle wearing parameter measurement method according to claim 11 , wherein the size of the appearance of the at least the part of the actual spectacle frame is an actual measurement of the size in real space.

17. The manufacturing method of a spectacle lens according to claim 14 , wherein the size of the appearance of the at least the part of the actual spectacle frame is an actual measurement of the size in real space.

18. The spectacle wearing parameter measurement method according to claim 11 , wherein no scale aids are mounted in the spectacle frame in the measurement step.

19. The manufacturing method of a spectacle lens according to claim 14 , wherein no scale aids are mounted in the spectacle frame in the measurement step.

Assignees

• Hoya Lens Thailand Ltd

Inventors

• Tadokoro Nobuyuki
• Hirono Naoya
• Matsushima Masaaki

Classifications

• G01B11/02 Primary

  for measuring length, width or thickness (G01B11/08 takes precedence) · CPC title

• G02C13/00

  Assembling (producing spectacle frames from plastics or from substances in a plastic state B29D12/02); Repairing; Cleaning (disinfection or sterilisation of contact lenses A61L12/00) · CPC title

• G02C7/02

  Lenses; Lens systems {; Methods of designing lenses} · CPC title

• G01B11/14

  for measuring distance or clearance between spaced objects or spaced apertures (G01B11/26 takes precedence; rangefinders G01C3/00) · CPC title

• G06F3/04847

  Interaction techniques to control parameter settings, e.g. interaction with sliders or dials · CPC title