Custom eyeglass manufacturing method

• US 6,682,195 B2
• Filed: 10/25/2001
• Issued: 01/27/2004
• Est. Priority Date: 10/25/2001
• Status: Expired due to Term

• Current Assignee: Essilor International SA (EssilorLuxottica SA)
• Original Assignee: Ophthonix Incorporated
• Inventors: Dreher, Andreas W.
• Primary Examiner(s): MANUEL, GEORGE C
• Assistant Examiner(s): Johnson; Ruby L.
• Application Number:
  US10/046,656
• Publication Number:
  US 20030081173A1
• Time in Patent Office: 824 Days
• Field of Search: 351/204,205,227,246,41,124,156,158 382/282
• US Class Current: 351/204
• CPC Class Codes: G02C 13/003 Measuring during assembly or fitting of spectacles
• CPC Class Codes: G02C 13/005 Measuring geometric parameters required to locate ophtalmic lenses in spectacles frames apparatus for testing or instruments for examining the eyes per se A61B3/00; machines or devices and accessories for grinding the edges of lenses using spectacles as a template B24B9/144
• CPC Class Codes: G02C 5/126 exchangeable or otherwise fitted to the shape of the nose

Abstract

A Custom Eyeglass Manufacturing Method includes a wavefront measuring device with a plurality of cameras directed at a patient'"'"'s face. The resulting images are processed by a computer to determine the location of pupils, center of pupils, pupil distance, width of face, ear location, distance of corneal apex from the wavefront measuring device, distance from ear to corneal apex, and other desired parameters necessary to quantify a patient'"'"'s face for custom eyeglass fittings. Moldings may be applied to patient'"'"'s nose, temples, and ears in order to construct a pair of eyeglasses that fix perfectly on patient'"'"'s head. Additionally, a test frame may be used in combination with the wavefront measuring device in order to allow computer to find some of the areas automatically. Lastly, registration markers may be applied to either the test frame, the moldings, or both in order to further aide the computer in locating desired parameters.

Claims

1. A method of making a custom pair of eyeglasses, the method comprising the steps of:

positioning a plurality of cameras around a patient'"'"'s head in order to image front and side views of said patient'"'"'s head;

applying moldable material to nose, temples, and behind ears of said patient to obtain moldings;

attaching a test frame of known dimensions to said moldable materials;

imaging said front and side views of said patient'"'"'s head;

processing said images to determine lens-mounting parameters of said patient'"'"'s head; and

using said lens mounting parameters to manufacture a pair of eyeglasses that precisely fit said patient.

2. The method of claim 1 further comprising:

attaching registration markers to said test frame.

3. The method of claim 1 further comprising:

attaching registration markers to said moldable material.

4. The method of claim 1 further comprising:

attaching registration markers to said moldable material; and

using said moldings to create custom hinges, ear pads, and nose pads as part of said pair of eyeglasses.

5. The method of claim 1, further comprising a step of obtaining wavefront measurements of said patient'"'"'s eyes.

6. The method of claim 5 where said step of imaging said front and side views of said patient'"'"'s head is conducted while conducting said step of obtaining wavefront measurements of said patient'"'"'s eyes.

7. The method of claim 5, wherein said wavefront measurements are obtained for a plurality of gazing angles, viewing distances, or both.

8. A custom eyeglass manufacturing system comprising:

a wavefront measurement device; and

an imaging system configured to acquire imaging system data from a patient'"'"'s head to determine lens-mounting parameters.

9. The system of claim 8 configured to acquire wavefront measurement data.

10. The system of claim 9 configured to acquire said wavefront measurement data and said imaging system data substantially simultaneously.

11. The system of claim 8 wherein said imaging system comprises a plurality of cameras.

12. The system of claim 8 wherein said wavefront measurement device comprises a refractor, autorefractor, or phoropter.

13. The system of claim 8 wherein said wavefront measurement device comprises a wavefront sensor.

14. The system of claim 13 wherein said wavefront sensor comprises a Hartmann-Shack sensor.

15. The system of claim 8 wherein said lens mounting parameters include the location of a patient'"'"'s pupils.

16. The system of claim 15 configured to acquire said wavefront measurement data and said imaging system data for at least one selected from the group consisting of a plurality of gazing angles, a plurality of pupil locations, and a plurality of viewing distances.

17. A method of making a custom pair of eyeglasses that comprises acquiring imaging system data from a patient'"'"'s head using the system of claim 8.

18. The method of claim 17 that further comprises acquiring wavefront measurement data.

19. The method of claim 18, wherein said wavefront measurement data is obtained for a plurality of gazing angles, viewing distances, or both.