# US 11,439,299 B2 · Selection aid for selecting lenses for spectacles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,439,299 B2 - Document ID: US11439299B2 - Status: Granted - Kind: B2 - Application number: 16/816,670 - Filed: 2020-03-12 - Published: 2020-09-17 - Granted: 2022-09-13 - Earliest claimed: 2019-03-15 - Assignees: Carl Zeiss Vision International GmbH - Applicants: Carl Zeiss Vision International GmbH - Inventors: Manuela Weinreich; Frank Mielich; Sarah Gothe - Web page: https://patentgrep.com/patent/US11439299B2 ## CPC - A61B 3/0033: {characterised by user input arrangements} - A61B 3/00: Apparatus for testing the eyes; Instruments for examining the eyes (eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10) - A61B 3/02: Subjective types, i.e. testing apparatus requiring the active assistance of the patient - G02C 7/027: {considering wearer's parameters} - G02C 13/003: {Measuring during assembly or fitting of spectacles} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) The selection aid according to claim 1, wherein the first disc has a circular shape. ### Claim 3 (depends on 2) The selection aid according to claim 2, wherein the second disc has a shape of a circle sector. ### Claim 4 (depends on 2) The selection aid according to claim 2, wherein the first disc and the second disc have a same radius. ### Claim 5 (depends on 3) 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°. ### Claim 6 (depends on 1) 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. ### Claim 7 (depends on 1) 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. ### Claim 8 (depends on 1) 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. ### Claim 9 (depends on 1) The selection aid according to claim 1, wherein the recommendation fields each have a recommendation for a spectacle lens type suitable for the customer. ### Claim 10 (depends on 1) 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. ### Claim 11 (depends on 1) 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. ### Claim 12 (depends on 1) 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. ### Claim 13 (depends on 1) 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. ### Claim 14 (depends on 1) 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. ### Claim 15 (depends on 1) 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.