Selection aid for selecting lenses for spectacles

Patent metadata

Field	Value
Publication number	US-11439299-B2
Application number	US-202016816670-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Mar 15, 2019
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

A selection aid for selecting lenses for spectacles on the basis of a plurality of customer-specific criteria contains a first disc and a second disc. The first disc has a selection area with criteria to be selected and selection recommendations and is divided into selection regions of equal size. The second disc is rotatably connected to the first disc about an axis of rotation. The second disc partly conceals the selection area and visually frees an area region of the selection area that corresponds to one of the selection regions in terms of size and shape.

First claim

The invention claimed is:

1. A selection aid for selecting lenses for spectacles on a basis of a plurality of customer-specific criteria, the selection aid comprising:
a first disc having a selection area containing a criterion to be selected and a selection recommendation, the selection area being divided into a plurality of selection regions of equal size; and
a second disc being rotatably connected to the first disc about an axis of rotation, the second disc being configured to partly conceal the selection area and to visually free an area region of the selection area that corresponds in size and shape to one of the selection regions,
wherein each selection region widens in a radial direction proceeding from the axis of rotation outward and has a central selection field, which is provided with a customer-specific criterion, and n further selection fields following the central selection field in the radial direction,
wherein n is a natural number,
wherein in each selection region the n further selection fields each have a plurality of partial selection fields arranged next to one another transversely with respect to the radial direction and provided in each case with the customer-specific criterion,
wherein in each selection region a plurality of partial selection fields follows in the radial direction the central selection field or a respective further selection field and adjoins the central selection field or the respective further selection field with the exception of the partial selection field of an n-th selection field,
wherein in each selection region a recommendation field having the selection recommendation adjoins each of the partial selection fields of the n-th selection field in the radial direction,
wherein the second disc has n+1 questions on an outer side thereof and facing away from the first disc, and
wherein exactly one question each is assigned to the central selection field and to each of the further selection fields of each selection region arranged in the area region and visually free from the second disc.

2. The selection aid according to claim 1 , wherein the first disc has a circular shape.

3. The selection aid according to claim 2 , wherein the second disc has a shape of a circle sector.

4. The selection aid according to claim 2 , wherein the first disc and the second disc have a same radius.

5. The selection aid according to claim 3 , wherein each of the selection regions extends over a center point angle of 60°, 72°, 90°, or 120°.

6. The selection aid according to claim 1 , wherein the question assigned to the central selection field relates to an age of the customer,
wherein each of the central selection fields has an age range, and
wherein the age ranges do not mutually overlap.

7. The selection aid according to claim 1 , wherein one of the questions assigned to the further selection fields relates to a visual challenge or a visual difficulty of the customer, and
wherein the partial selection field of the corresponding further selection field stipulates an answer to the one of the questions.

8. The selection aid according to claim 1 , wherein one of the questions assigned to the further selection fields relates to spectacle lenses currently used by the customer, and
wherein the partial selection field of the corresponding further selection field stipulates an answer to the one of the questions.

9. The selection aid according to claim 1 , wherein the recommendation fields each have a recommendation for a spectacle lens type suitable for the customer.

10. The selection aid according to claim 1 , wherein the n-th further selection fields of each selection region are identical for at least one natural number n.

11. The selection aid according to claim 1 , wherein the second disc further comprises an explanatory text on the outer side facing away from the first disc, the explanatory text being assigned to the recommendation field of the selection region.

12. The selection aid according to claim 1 , wherein the first disc further comprises instructions for use on a rear side thereof facing away from the second disc.

13. The selection aid according to claim 1 , wherein the central selection fields, the partial selection fields, and the recommendation fields each have a shape of a sector of an annulus bounded by two radii and two arcs.

14. The selection aid according to claim 1 , further comprising:
a cover disc extending as far as an inner boundary line of the central selection field,
wherein the cover disc is attached to the outer side of the second disc facing away from the first disc and is fixedly connected to the second disc.

15. The selection aid according to claim 1 , wherein at least one portion of the recommendation field has a recommendation for a near addition of the spectacle lenses.

Assignees

• Zeiss Carl Vision Int Gmbh

Inventors

• Weinreich Manuela
• Mielich Frank
• Gothe Sarah

Classifications

• A61B3/0033 Primary

  characterised by user input arrangements · CPC title

• G02C7/027 Primary

  considering wearer's parameters · CPC title

• G06C3/00 Primary

  Arrangements for table look-up, e.g. menstruation table · CPC title

• A61B3/00

  Apparatus for testing the eyes; Instruments for examining the eyes (eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10) · CPC title

• G02C13/003

  Measuring during assembly or fitting of spectacles · CPC title