CA2196280A1 - Method of determining spectacle lens edge data - Google Patents
Method of determining spectacle lens edge dataInfo
- Publication number
- CA2196280A1 CA2196280A1 CA002196280A CA2196280A CA2196280A1 CA 2196280 A1 CA2196280 A1 CA 2196280A1 CA 002196280 A CA002196280 A CA 002196280A CA 2196280 A CA2196280 A CA 2196280A CA 2196280 A1 CA2196280 A1 CA 2196280A1
- Authority
- CA
- Canada
- Prior art keywords
- data
- computer
- telefax
- edging
- transmitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C13/00—Assembling; Repairing; Cleaning
- G02C13/003—Measuring during assembly or fitting of spectacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Ceramic Engineering (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
A method is disclosed of determining edging data for a spectacle lens edge. This involves the following steps: first, an image of the inner contour of the mount, i.e. of a former or template, is produced on a sheet on a scale of 1:1 by tracing the outline of the mount, i.e. of the former or template; the calibre-defining points are marked in the image of the mount on the sheet; the image of the mount with the marked-in calibre-defining points is recorded using a scanner; and the scan data are passed via a telephone line to a computer which determines the edge data. The method according to the invention is characterized by the fact that a standard fax device, which transmits the sheet to a receiver unit in the usual way, is used for transmitting the data and the fax data received by the receiver unit are entered into a computer which determines the appropriate edge data from the transmitted data.
Description
2'1 96280 Method of Determining Edging Data D e s c r i p t i o n Technical Field The present invention relates to a method of determining edging data of an ophthalmic lens according to the generic part of claim 1.
State of the Art For some time, most of the edging devices for ophthalmic lenses on the market, such as grinding machines, do not operate as copying machines that "copy" the edging of the ophthalmic lenses of a so-called form disk, but rather are numerically controlled. In order to be able to calculate the needed numerical edging data for a specific to-be-edged ophthalmic lens for operating a grinding machine, it not only requires knowing the course of the so-called lens rings of the spectacle frames in a numerically evaluatable form, but also knowing the location of the individual look-through point of the ophthalmic lens in relation to the respective spectacle frame, if need be, in a numerically evaluatable form.
In practice, there is frequently the problem of the customer bringing along to the optician's spectacle frames, into which he/she wants the new ophthalmic lenses to be inserted. Usually no set of data is available for the brought along spectacle frames. Furthermore, not all spectacle frame manufacturers supply "sets of numerical data" which can be entered directly into the respective 2,96280 existent edging device for their models.
Therefore, it is necessary to determine the contour of existent spectacle frames respectively the respective measurement disk and form disk numerically in order to be able to control the edging device accordingly. For this purpose, so-called "tracers" have been employed in practice. In these tracers, a pin traces the spectacle frames respectively the respective disk.
However, these tracers are relatively expensive so that their purchase is not worthwile for small opticians, because weeks can go by before small shops may need to use a tracer. Moreover, tracers from different manufacturers use different data formats for the measured results so that the obtained numerical sets of data often cannot be employed as order data sets for different ophthalmic lens manufacturers.
US patent 5,257,198 proposes a method in which the use of a tracer can be obviated by tracing a picture of the frame with a drawing implement on a sheet of paper. The look-through point is then drawn into the picturè of the frames.
Obviously, this picture of the frames is digitally collected using a special digitalizer and transmitted to a computer via a line, which by way of illustration, can be a telephone line. The edging data determined by the computer from the transmitted digital data are used for controlling the actual edging device.
However, this method also has a number of drawbacks:
_3_ 21 96280 Obviously, conventional commercial devices are not utilized, because it is explicitly said that the function of the digitalizer, which is not described in more detail, is "similar to", but obviously not the same as conventional scanners or fax machines (column 4, line 20 ff. of US
patent 5 257 198). Therefore, the purchase of a special device for passing on the data required for determining the edging data to the manufacturer of the ophthalmic lens is still necessary.
Moreover, in this method, the priorly determined digital data are converted. In other words, the data have to be converted with a special data structure, which under certain circumstances does not permit ordering from different manufacturers of ophthalmic lenses.
Description of the Invention The object of the present invention is to further improve a method of determining the edging data of an ophthalmic lens according to the generic part of claim 1 in such a manner that the edging data can be determined at the optician's and permits conveying the edging data to any manufacturer and therefore passing on the edging data to any manufacturer and therefore ordering from any manufacturer without the optician having to purchase a special device for determining the ordering data.
A solution to this object according to the present invention is given in claim 1. Further improvements of the present invention are the subject matter of the dependent claims.
The present invention is based on the fundamental idea that presently practically every optician shop has a 4 ~96230 telefax machine. The reason for this is that, in order to avoid errors, most ophthalmic lens suppliers have switched to taking orders by telefax instead of taking orders by telephone as has hitherto been the practice.
This, conventional commercial and without additional auxilliary options, telefax is employed according to the present invention to receive the contour of the spectacle frames respectively the form disk respectively the measurement disk in a "numerically evaluatable" manner.
For this purpose, first a 1:1 scale picture of the inside contour of the frame respectively the form disk is produced. This image can be made in any manner and, in particular, by placing the frames on a sheet of paper and tracing with a drawing implement, such as a pencil, a ballpoint pen or the like, the outer respectively inside contour of the frame respectively the outer contour of the form disk or measurement disk.
Errorless tracing of the contour of the spectacle frames respectively the disk is simplified by using a drawing implement that is attached to a so-called pantograph.
Guiding the drawing implement with a pantograph, which ensures "straight positioning" of the writing implement, prevents errors like those that can occur in tracing the frames respectively the disk "by hand".
In addition, the look-through point can be additionally drawn into the picture of the frames in an as such known manner and can be evaluated by a computer. In this way, the supplier receives all the data needed for edging a ophthalmic lens in a numerically evaluatable form without using any special "data format" for transmission but rather the worldwide normed "telefax data format" (tif).
_5_ 21 96280 The picture is transmitted with this telefax machine to a receiving station located at the supplier's. The telefax data is read into a computer at the supplier's, which draws from the data, the data required for the respective order.
In order to be independent from possible scale transmission errors, according to claim 2 it is preferred if a scale is transmitted for calibrating the transmitted data. This scale can, by way of illustration, be a "reticle" with known dimensions. In this way, it is immaterial if the optician's telefax device enlarges or reduces the read-in picture for the transmission.
On the page, or on an additional page, transmitted by telefax to the supplier respectively the manufacturer of the rough round or edged ophthalmic lens, there can, of course, be other ordering data, such as the spherical action of the ophthalmic lens, if need be the cylindrical action and the position of the axis, the material of the ophthalmic lens, if need be the tint of the lenses, antireflection coatings, etc.
These order data can then be manually evaluated, by being fed into a computer, or preferably evaluated by means of an OCR process or a direct evaluation process (claim 3):
In particular, certain order options which can be marked with an x when ordering and which the supplier can evaluate numerically can be printed on the page with the picture of the frame or on an additional page. By way of illustration, if the telefax is directly "read into" a computer via a telefax card, the computer can directly .
evaluate the "x's" beside the order options, thereby reducing misunderstandings on the supplier side.
The invented method has the advantage that the data are compiled by the optician without the supplier needing a special data system, because the picture of the frames is transmitted via a standard telefax transmission system without using a special numerical data system. Evaluation of the transmitted picture data "representing an analogue picture" is not evaluated until it is at the supplier's.
If the supplier is supposed to only select for grinding a rough round ophthalmic lens suited to the respective frames and the grinding itself is to be carried out at the optician's, it suffices if the supplier's computer determines the required minimum diameter of the rough round ophthalmic lens (claim S).
Of course, with the invented method the computer cannot only calculate from the transmitted telefax data the required minimum diameter of the ophthalmic lens for specific frames and given look-through points, the computer can also use the telefax data to optimize center thickness (claim 6) and/or to calculate the edging data for an edging device (claim 7).
In particular, the computer can also directly control the edging device (claim 15) in such a manner that the supplier delivers already edged ophthalmic lenses to the optician which only need to be inserted into the frames, thereby reducing the amount of equipment that an optician needs to have.
_7_ 2 ~ 96280 The edging data calculated by the computer can, of course, be fed off-line into the optician's edging device, by way-of illustration by sending the optician a diskette (claim 14).
Although, the printout of a conventional commercial telefax machine used as a receiving station by the supplier can be numerically evaluated there using a scanner or the like, it is preferred according to claim 10 if a computer with a fax card is employed which the computer temporarily stores the telefax data, thereby eliminating all the errors that can occur with the printout of the transmitted telefax data and/or their evaluation with a scanner.
Of course, a printout of the telefax data can be additionally made for control purposes (claim 11). This printout can be made by a telefax machine that is connected in parallel to the computer (claim 12) or by a readout device that is directly connected to the computer, such as e.g., a printer (claim 13).
All the device components that are needed for the realization of the present invention are known:
The optician only requires a sheet of paper, if need be with a scale printed on it or put on it later including order options, and a conventional commercial telefax machine without needing any extras.
The supplier also only needs, in addition to a computer with a suited program, a conventional commercial telefax machine and an evaluation unit for the telefax printout respectively a conventional computer telefax card.
-8- ~1 9628~
Therefore, somone skilled in the art working in the pertinent field is able to realize the present invention on the basis of the previous description thus obviating a description of a preferred embodiment and a drawing.
State of the Art For some time, most of the edging devices for ophthalmic lenses on the market, such as grinding machines, do not operate as copying machines that "copy" the edging of the ophthalmic lenses of a so-called form disk, but rather are numerically controlled. In order to be able to calculate the needed numerical edging data for a specific to-be-edged ophthalmic lens for operating a grinding machine, it not only requires knowing the course of the so-called lens rings of the spectacle frames in a numerically evaluatable form, but also knowing the location of the individual look-through point of the ophthalmic lens in relation to the respective spectacle frame, if need be, in a numerically evaluatable form.
In practice, there is frequently the problem of the customer bringing along to the optician's spectacle frames, into which he/she wants the new ophthalmic lenses to be inserted. Usually no set of data is available for the brought along spectacle frames. Furthermore, not all spectacle frame manufacturers supply "sets of numerical data" which can be entered directly into the respective 2,96280 existent edging device for their models.
Therefore, it is necessary to determine the contour of existent spectacle frames respectively the respective measurement disk and form disk numerically in order to be able to control the edging device accordingly. For this purpose, so-called "tracers" have been employed in practice. In these tracers, a pin traces the spectacle frames respectively the respective disk.
However, these tracers are relatively expensive so that their purchase is not worthwile for small opticians, because weeks can go by before small shops may need to use a tracer. Moreover, tracers from different manufacturers use different data formats for the measured results so that the obtained numerical sets of data often cannot be employed as order data sets for different ophthalmic lens manufacturers.
US patent 5,257,198 proposes a method in which the use of a tracer can be obviated by tracing a picture of the frame with a drawing implement on a sheet of paper. The look-through point is then drawn into the picturè of the frames.
Obviously, this picture of the frames is digitally collected using a special digitalizer and transmitted to a computer via a line, which by way of illustration, can be a telephone line. The edging data determined by the computer from the transmitted digital data are used for controlling the actual edging device.
However, this method also has a number of drawbacks:
_3_ 21 96280 Obviously, conventional commercial devices are not utilized, because it is explicitly said that the function of the digitalizer, which is not described in more detail, is "similar to", but obviously not the same as conventional scanners or fax machines (column 4, line 20 ff. of US
patent 5 257 198). Therefore, the purchase of a special device for passing on the data required for determining the edging data to the manufacturer of the ophthalmic lens is still necessary.
Moreover, in this method, the priorly determined digital data are converted. In other words, the data have to be converted with a special data structure, which under certain circumstances does not permit ordering from different manufacturers of ophthalmic lenses.
Description of the Invention The object of the present invention is to further improve a method of determining the edging data of an ophthalmic lens according to the generic part of claim 1 in such a manner that the edging data can be determined at the optician's and permits conveying the edging data to any manufacturer and therefore passing on the edging data to any manufacturer and therefore ordering from any manufacturer without the optician having to purchase a special device for determining the ordering data.
A solution to this object according to the present invention is given in claim 1. Further improvements of the present invention are the subject matter of the dependent claims.
The present invention is based on the fundamental idea that presently practically every optician shop has a 4 ~96230 telefax machine. The reason for this is that, in order to avoid errors, most ophthalmic lens suppliers have switched to taking orders by telefax instead of taking orders by telephone as has hitherto been the practice.
This, conventional commercial and without additional auxilliary options, telefax is employed according to the present invention to receive the contour of the spectacle frames respectively the form disk respectively the measurement disk in a "numerically evaluatable" manner.
For this purpose, first a 1:1 scale picture of the inside contour of the frame respectively the form disk is produced. This image can be made in any manner and, in particular, by placing the frames on a sheet of paper and tracing with a drawing implement, such as a pencil, a ballpoint pen or the like, the outer respectively inside contour of the frame respectively the outer contour of the form disk or measurement disk.
Errorless tracing of the contour of the spectacle frames respectively the disk is simplified by using a drawing implement that is attached to a so-called pantograph.
Guiding the drawing implement with a pantograph, which ensures "straight positioning" of the writing implement, prevents errors like those that can occur in tracing the frames respectively the disk "by hand".
In addition, the look-through point can be additionally drawn into the picture of the frames in an as such known manner and can be evaluated by a computer. In this way, the supplier receives all the data needed for edging a ophthalmic lens in a numerically evaluatable form without using any special "data format" for transmission but rather the worldwide normed "telefax data format" (tif).
_5_ 21 96280 The picture is transmitted with this telefax machine to a receiving station located at the supplier's. The telefax data is read into a computer at the supplier's, which draws from the data, the data required for the respective order.
In order to be independent from possible scale transmission errors, according to claim 2 it is preferred if a scale is transmitted for calibrating the transmitted data. This scale can, by way of illustration, be a "reticle" with known dimensions. In this way, it is immaterial if the optician's telefax device enlarges or reduces the read-in picture for the transmission.
On the page, or on an additional page, transmitted by telefax to the supplier respectively the manufacturer of the rough round or edged ophthalmic lens, there can, of course, be other ordering data, such as the spherical action of the ophthalmic lens, if need be the cylindrical action and the position of the axis, the material of the ophthalmic lens, if need be the tint of the lenses, antireflection coatings, etc.
These order data can then be manually evaluated, by being fed into a computer, or preferably evaluated by means of an OCR process or a direct evaluation process (claim 3):
In particular, certain order options which can be marked with an x when ordering and which the supplier can evaluate numerically can be printed on the page with the picture of the frame or on an additional page. By way of illustration, if the telefax is directly "read into" a computer via a telefax card, the computer can directly .
evaluate the "x's" beside the order options, thereby reducing misunderstandings on the supplier side.
The invented method has the advantage that the data are compiled by the optician without the supplier needing a special data system, because the picture of the frames is transmitted via a standard telefax transmission system without using a special numerical data system. Evaluation of the transmitted picture data "representing an analogue picture" is not evaluated until it is at the supplier's.
If the supplier is supposed to only select for grinding a rough round ophthalmic lens suited to the respective frames and the grinding itself is to be carried out at the optician's, it suffices if the supplier's computer determines the required minimum diameter of the rough round ophthalmic lens (claim S).
Of course, with the invented method the computer cannot only calculate from the transmitted telefax data the required minimum diameter of the ophthalmic lens for specific frames and given look-through points, the computer can also use the telefax data to optimize center thickness (claim 6) and/or to calculate the edging data for an edging device (claim 7).
In particular, the computer can also directly control the edging device (claim 15) in such a manner that the supplier delivers already edged ophthalmic lenses to the optician which only need to be inserted into the frames, thereby reducing the amount of equipment that an optician needs to have.
_7_ 2 ~ 96280 The edging data calculated by the computer can, of course, be fed off-line into the optician's edging device, by way-of illustration by sending the optician a diskette (claim 14).
Although, the printout of a conventional commercial telefax machine used as a receiving station by the supplier can be numerically evaluated there using a scanner or the like, it is preferred according to claim 10 if a computer with a fax card is employed which the computer temporarily stores the telefax data, thereby eliminating all the errors that can occur with the printout of the transmitted telefax data and/or their evaluation with a scanner.
Of course, a printout of the telefax data can be additionally made for control purposes (claim 11). This printout can be made by a telefax machine that is connected in parallel to the computer (claim 12) or by a readout device that is directly connected to the computer, such as e.g., a printer (claim 13).
All the device components that are needed for the realization of the present invention are known:
The optician only requires a sheet of paper, if need be with a scale printed on it or put on it later including order options, and a conventional commercial telefax machine without needing any extras.
The supplier also only needs, in addition to a computer with a suited program, a conventional commercial telefax machine and an evaluation unit for the telefax printout respectively a conventional computer telefax card.
-8- ~1 9628~
Therefore, somone skilled in the art working in the pertinent field is able to realize the present invention on the basis of the previous description thus obviating a description of a preferred embodiment and a drawing.
Claims (15)
1. A method of determining the edging data of an ophthalmic lens, in which - first a picture of the inside contour of the frames respectively a form disk respectively a measurement disk with a scale of 1:1 is made by tracing said frames respectively said form disk respectively said measurement disk on a sheet of paper using a drawing implement, - the look-through points are drawn into said picture of said frames on said sheet of paper, - said picture of said frames with said drawn-in look-through points is scanned, and the scanning data are transmitted via a telephone line to a computer which determines the edging data therefrom, characterized by utilizing for the transmission of said data a conventional commercial telefax machine which transmits said page to a receiving station in a conventional manner, and by the telefax data received by said receiving station being read into a computer which determines said edging data from said telefax data.
2. A method according to claim 1.
characterized by for calibration of the transmitted data a scale being provided on said page transmitted by telefax, said scale being transmitted along with it and evaluated by a computer.
characterized by for calibration of the transmitted data a scale being provided on said page transmitted by telefax, said scale being transmitted along with it and evaluated by a computer.
3. A method according to claim 1 or 2, characterized by other ordering data being provided on said telefax transmitted page and therefore transmitted along with it.
4. A method according to claim 3, characterized by other ordering data being transmitted in for a computer directly evaluatable manner.
5. A method according to one of the claims 1 to 4, characterized by a computer determining from said telefax data only the required minimum diameter of the rough round ophthalmic lens.
6. A method according to one of the claims 1 to 5, characterized by a computer using said telefax data to optimize the center thickness.
7. A method according to one of the claims 1 to 6, characterized by a computer calculating from said telefax data the edging data for an edging device.
8. A method according to claim 7, characterized by a computer controlling the edging device.
9. A method according to one of the claims 1 to 8, characterized by a drawing implement attached to a pantogram being utilized as a drawing implement.
10. A method according to one of the claims 1 to 9, characterized by a computer with a fax card, said computer comtemporarily storing said telefax data, being utilized.
11. A method according to claim 10, characterized by in addition a printout of said telefax data being made for control purposes.
12. A method according to claim 11, characterized by said printout being made by a telefax machine which is connected in parallel to said computer.
13. A method according to claim 11, characterized by said printout being made by a readout device, such as, e.g., a printer, connected to said computer.
14. A method according to one of the claims 1 to 13, characterized by the computer calculated edging data being fed off-line into said edging device.
15. A method according to one of the claims 1 to 14, characterized by said computer-calculated edging data being fed directly into said edging device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4427071A DE4427071A1 (en) | 1994-08-01 | 1994-08-01 | Procedure for determining boundary data |
| DEP4427071.2 | 1994-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2196280A1 true CA2196280A1 (en) | 1996-02-15 |
Family
ID=6524557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002196280A Abandoned CA2196280A1 (en) | 1994-08-01 | 1995-08-01 | Method of determining spectacle lens edge data |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0775334A1 (en) |
| CA (1) | CA2196280A1 (en) |
| DE (1) | DE4427071A1 (en) |
| WO (1) | WO1996004596A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10147233B2 (en) | 2012-05-23 | 2018-12-04 | Glasses.Com Inc. | Systems and methods for generating a 3-D model of a user for a virtual try-on product |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19642171A1 (en) * | 1996-10-12 | 1998-04-30 | Wernicke & Co Gmbh | Method of determining and transferring peripheral data for spectacle lens being ground into shape |
| DE19804542C5 (en) * | 1998-02-05 | 2009-04-30 | Wernicke & Co Gmbh | Method and device for processing spectacle lenses |
| US9236024B2 (en) | 2011-12-06 | 2016-01-12 | Glasses.Com Inc. | Systems and methods for obtaining a pupillary distance measurement using a mobile computing device |
| US9286715B2 (en) | 2012-05-23 | 2016-03-15 | Glasses.Com Inc. | Systems and methods for adjusting a virtual try-on |
| US9483853B2 (en) | 2012-05-23 | 2016-11-01 | Glasses.Com Inc. | Systems and methods to display rendered images |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092364A1 (en) * | 1982-04-14 | 1983-10-26 | The Hanwell Optical Co. Limited | A method of and apparatus for dimensioning a lens to fit a spectacle frame |
| DE3817850A1 (en) * | 1988-05-26 | 1989-12-07 | Loh Kg Optikmaschf | Method for minimising the weight of spectacle lenses |
| US5231510A (en) * | 1991-04-22 | 1993-07-27 | Worthington Cristian A | Information retrieval system utilizing facsimile communication and paper forms with preset format |
| US5257198A (en) * | 1991-12-18 | 1993-10-26 | Schoyck Carol G Van | Method of transmitting edger information to a remote numerically controlled edger |
-
1994
- 1994-08-01 DE DE4427071A patent/DE4427071A1/en not_active Withdrawn
-
1995
- 1995-08-01 CA CA002196280A patent/CA2196280A1/en not_active Abandoned
- 1995-08-01 WO PCT/DE1995/000995 patent/WO1996004596A1/en not_active Application Discontinuation
- 1995-08-01 EP EP95927618A patent/EP0775334A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10147233B2 (en) | 2012-05-23 | 2018-12-04 | Glasses.Com Inc. | Systems and methods for generating a 3-D model of a user for a virtual try-on product |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996004596A1 (en) | 1996-02-15 |
| DE4427071A1 (en) | 1996-02-08 |
| EP0775334A1 (en) | 1997-05-28 |
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| Date | Code | Title | Description |
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