Method, program, and device for manufacturing progressive refractive power lens, manufacturing method for progressive refractive power lens, and lens supply system
US-2016327808-A1 · Nov 10, 2016 · US
Controlling designs using a polygonal design
US9354455B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9354455-B2 |
| Application number | US-201013145710-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 22, 2010 |
| Priority date | Jan 23, 2009 |
| Publication date | May 31, 2016 |
| Grant date | May 31, 2016 |
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Abstract
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A method and device for calculating design parameters of a design of a progressive spectacle lens on the basis of a predetermined design polygon. The design parameters are calculated by specifying a point within the design polygon, in which the specified point defines the progressive spectacle lens design, and then determining a value of each design parameter at the specified point by an interpolation of at least part of the predetermined values at the corner points and, optionally, of at least part of the predetermined values of the design parameter at the at least one additional point.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for calculating design parameters D j , j=1, . . . , M of a progressive spectacle lens design on the basis of a predetermined design polygon and manufacturing a progressive spectacle lens, the method comprising: specifying a point P Design within the predetermined design polygon, wherein the point P Design defines the spectacle lens design; determining a value D j (P Design ) of each design parameter D j , j=1, . . . , M, of the spectacle lens design at the point P Design by an interpolation of one or more predetermined values D j (P Corner ), j=1, . . . , M at respective corner points P Corner , determining a spatial distribution of target values of at least one imaging property or aberration of the progressive spectacle lens, wherein each point P within the predetermined design polygon defines one design that is characterized by design values D j (P), D j (P Corner ), j=1, . . . , M of the design parameters characterize the design at the respective corner points P Corner of the predetermined design polygon, M designates the number of design parameters, and the progressive spectacle lens design comprises target values for the spatial distribution of the at least one imaging property or aberration of the progressive spectacle lens, and manufacturing the progressive spectacle lens in accordance with the spectacle lens design. 2. The method according to claim 1 , wherein the interpolation is a linear interpolation at least in sections. 3. The method according to claim 1 , wherein the predetermined design polygon is a design triangle. 4. The method according to claim 1 , wherein the values D j (P Addition ) of the design parameters D j , j=1, . . . , M at at least one additional point P Addition on each of the side edges of the predetermined design polygon are each predetermined. 5. The method according to claim 1 , wherein predetermined values D j (P Central )of the design parameters D j , j=1, . . . , M characterize the design at a central point P Central within the predetermined design polygon, and wherein the value D j (P Design ) of each design parameter D j at the point P Design is calculated by an interpolation of the one or more predetermined values D j (P Corner ) of the design parameter D j at the respective corner points P Corner and the value D j (P Central ) of the design parameter D j the central point P Central . 6. The method according to claim 5 , wherein the interpolation calculation comprises: determining the penetration point P Penetration in the direction of the vector P Central P Design of the straight line through the central point P Central and the point P Design with one of the side edges of the predetermined design polygon, wherein the vector P Central P Design starts at the central point P Central and ends at the point P Design ; determining the two nearest points P NL1 and P NL2 on the side edge of the predetermined design polygon on which the penetration point P Penetration lies as well, in which corresponding values D j (P NL1 ) and D j (P NL2 ) of the design parameter D j are predetermined, wherein the penetration point P Penetration lies between the two points P NL1 and P NL2 on the side edge of the predetermined design polygon; determining the value D j (P Penetration ) of the design parameter D j at the penetration point P Penetration by a first interpolation of the values of the design parameters D j (P NL1 )and D j (P NL2 ) at the two points P NL1 and P NL2 ; and determining the value D j (P Design ) of the design parameter D j at the point P Design by a second interpolation of the determined value D j (P Penetration ) of the design parameter D j at the penetration point P Penetration and the value D j (P Central ) of the design parameter D j at the central point P Central . 7. The method according to claim 6 , wherein the interpolation is performed in a polar coordinate system {φ, ρ}, wherein the origin of the coordinate system coincides with the central point P Central , and wherein the first interpolation is an interpolation with respect to the polar coordinate φ, and the second interpolation is an interpolation with respect to the polar coordinate ρ. 8. The method according to claim 7 , wherein, for the first interpolation: D j ( P Penetration ) = D j ( P NL 1 ) + D j ( P NL 2 ) - D j ( P NL 1 ) ( φ NL 2 - φ NL 1
Assignees
Inventors
Classifications
Special mathematical design techniques · CPC title
- G02C7/066Primary
Shape, location or size of the viewing zones · CPC title
considering wearer's parameters · CPC title
Electronic devices other than hearing aids · CPC title
considering parameters of the viewed object · CPC title
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Frequently asked questions
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- What does patent US9354455B2 cover?
- A method and device for calculating design parameters of a design of a progressive spectacle lens on the basis of a predetermined design polygon. The design parameters are calculated by specifying a point within the design polygon, in which the specified point defines the progressive spectacle lens design, and then determining a value of each design parameter at the specified point by an interp…
- Who is the assignee on this patent?
- Altheimer Helmut, Becken Wolfgang, Esser Gregor, and 12 more
- What technology area does this patent fall under?
- Primary CPC classification G02C7/066. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 31 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).