FR3048290A1 - METHOD FOR MANAGING AND CONTROLLING THE MANUFACTURE OF EYEWEAR - Google Patents

Abstract

The present invention relates to a signaling device (1) comprising a panel (2) of plastic material provided, on its rear face (5), with a metal section (10) arranged to cooperate with means for fixing said panel (2). ) to a support, particularly of the type of pole or foot. It is characterized in that the rear face (5) of the panel (2) and at least one face (6) of the profile (10) comprise respectively male (8) and female (7) assembly means arranged to allow a assembly between said profile (10) and said panel (2), said male assembly means (8) of the panel (2) being made of a thermoformable material allowing them to pass, once inserted into said female assembly means ( 7) of the profile (10), under the effect of a rise in temperature, from an initial shape to a final shape complementary to that of said female assembly means (7) of the profile (10), and to retain said final shape under the effect of a drop in temperature.

Description

METHOD OF MANAGING AND CONTROLLING THE MANUFACTURE OF

GLASSES

The subject of the present invention is a method of management and control of the manufacture of spectacles comprising two ophthalmic lenses placed in a frame, in which the values of the patient's anatomical parameters and relative data are measured and recorded to preserve them. to the frame and then manufacture said ophthalmic lenses on the basis of said measured values and placed in said frame to obtain said glasses, is generated and stored on a storage medium a first image illustrating a plan view of said glasses on which appear the markings specific to said ophthalmic lenses, said view being superimposed on calibration means, measurements are made from said markings to determine the values of the parameters relating to the patient and to the frame specific to each ophthalmic lens and the values are corrected measured using said calibration means.

Typically, when a patient goes to an optician for a new pair of glasses, the latter is required to take measures to ensure that after manufacture, the ophthalmic lenses will be positioned in the frame so that their optical center is confused with the pupils of the wearer. For this purpose, the optician generally notes the pupillary distance of the patient and the mounting height of the lenses in the frame. Again, for the visual comfort of the patient, it is indeed essential to ensure that the ophthalmic lenses are perfectly aligned and are positioned in the frame so as to correspond with the pupillary distance measured initially.

To carry out these measurements, the optician has, as the case may be, a measuring column or a measuring tablet.

The measuring column is so called because it is most frequently a column-shaped mirror in front of which is positioned the wearer of glasses. This mirror integrates at least one camera for taking a picture through which are visualized the pupillary distance and the mounting height that must be respected ophthalmic lenses in the new frame chosen, and worn at that time by the patient.

Similarly, the tablet also incorporates a camera to make a snapshot from which are deduced the pupillary distance and the mounting height of the glasses in the new mount.

Of course, outside the measuring column or the tablet, it is still customary to use a ruler which consists of marking on neutral glasses implanted in a new frame, directly with the stylus or felt, at once the pupillary center and the mounting height.

It should be noted that at this stage it is also conventionally conducted to probe the outline of the glasses, an operation which consists in defining the shape of the glasses in the grinds, either by the means previously mentioned, or not a suitable tooling.

Then, marked neutral glasses and / or the various measurements taken, that is to say the pupillary distance, the height of assembly and those relating to the probing of the outline of the glasses are sent to a manufacturer with or without the mount chosen by the patient. The manufacturer will then cut the glasses corresponding to the correction required by the patient and give them, if necessary, the shape for their implantation in the frame. This last step can also be performed by an optician himself.

During the operation of cutting or singing the ophthalmic lenses to give them their final shape, the latter are kept immobile, either by gluing or by similar means, to avoid scratching them. It has been observed that through these solutions for maintaining ophthalmic lenses, there is an obvious risk that they move during machining. However, through such a displacement results, necessarily, an error either at the level of the pupillary distance, or at the level of the mounting height is still a misalignment.

However, by statistic, it is shown that 10% of patients who have acquired a new horse return to their optician to complain about problems of adaptation. One-third of this 10% results in the replacement of lenses placed in the frame.

Therefore, to minimize this problem, when the cut glasses come from the supplier and are mounted in their mount, or when the mount with the corrective lenses come from the supplier, the optician proceeds, conventionally, a check with the rule.

This verification consists in locating on the glasses in the frame the markings that these glasses carry, to highlight these markings thanks to a suitable marker, then, through these identified markings, to control the pupillary distance and to check the height of the mounting to verify that the found values corresponding to those found on the patient before the manufacture of glasses. It is also appreciated, visually, the alignment of the glasses in the frame. Representative markers of these parameters are plotted for this purpose by the optician on the lenses in the frame.

Indeed, a misalignment results in a shift of a few degrees of the optical center of the near vision relative to the pupillary axis. However, if we take into account that the section of the pellet ensuring the near vision on glasses with progressive lenses and of the order of 4 mm, a small misalignment leads to a slight shift of this pellet of the axis of vision and therefore to a defect of vision. Nevertheless, it is well understood that the manual marking of the markings on the glasses and the manual highlighting of these markings by means of a suitable stylus is itself generating errors of appreciation. Therefore, such a way of controlling ophthalmic lenses does not allow an optician to guarantee 100% compliance of the glasses with the initial measurements.

In addition, if the optician has identified a design error, he is obliged to send the glasses back to his manufacturer so that he can himself carry out a check, and if necessary to a rectification of the cutting. At this stage, the manufacturer can challenge the optician's records. Especially at this time the optician no longer has the glasses with a so-called defect for himself, to recheck the readings previously made. It is therefore impossible for him to counter-argue and prove that the error comes from manufacturing and not from his measurements.

In the end, in order to guarantee to the patient a perfect conformity of the conception of his frame and the lenses with the upstream physiognomy measurements, it was imagined that after the realization of the glasses by the manufacturer and the assembly of these glasses in their mount either by the manufacturer himself or by the optician, to make strict measurements of the assembly, by means of an image, for example in the form of a photo of the glasses in their mount highlighting the markings of these glasses, moreover by highlighting the dimensional characteristics, be it the pupillary distance, the mounting height or the alignment coherence, and to compare them with the measurements. the patient and the mount are recorded and recorded initially. To this end, the invention relates to a method of the kind indicated in the preamble, characterized in that the correlation of the corrected values of the parameters relating to the patient and to the frame specific to each ophthalmic lens is checked with the values of the parameters relating to the patient and to the frame measured and recorded before the manufacture of said ophthalmic lenses.

With such a procedure, the optician or the manufacturer is able to ensure, strictly, the proper design of the glasses, apart from any manual intervention with a stylus or a ruler source errors.

Moreover, the image is stored on a storage medium and can therefore be reproduced in a plurality of copies, which allows the optician to have a proof, independent of the glasses returned to the manufacturer, attesting to the accuracy measurements made on the glasses after their manufacture. In short, when a design error is detected, a copy of the image comprising all the strictly measured data can be transmitted together with the glasses to the manufacturer, who can note the design error and redo the defective glasses. based on the results shown on this copy of the image and not just based on the glasses as is the case usually, the optician retaining the proof of the accuracy of its measurements made arrival of glasses.

In addition, the image comprising the measured measurements can be stored in a database and associated with identification means of the patient considered. Thus, it can be used at any time later, for example to reconform the frame, following a deformation in case of a fall, overheating due to the sun, etc.

It should not be neglected either the fact that by carrying out a strict control of the frame with these corrective lenses before delivering them to the wearer, the optician can guarantee to the latter a proper design of these glasses . It can thus detect, in case of complaint of the carrier if these complaints result from a difficulty of adaptation of the latter to its new level of correction or a distortion unfortunately caused to the mount.

Furthermore, the method according to the invention allows the optician to issue a control certificate to a patient guaranteeing the latter the excellent quality of his glasses and allowing the latter to benefit from monitoring over time on the basis of the information relating to the manufacture of the first pair of glasses stored, for example in a database to which the optician or a network of opticians has access.

Thus, when providing glasses to a patient, the optician can deliver to a patient a certification card to ensure the achievement of numerical control of his ophthalmic lenses, particularly its progressive lenses. Furthermore, the method according to the invention also provides that the optician stores the data of his patients from the implementation of the present method and stores them on a server for a certain period, for example about 2 years.

This makes it possible to carry out, during each check performed by the optician on a patient, an update of the data concerning him and, if necessary, of the period of conservation of the data.

In addition, the method according to the invention also provides that the patient can have access to information about him, including quality control of his ophthalmic lenses, by means of his certification card, for example via a smartphone capable of flashing a QR Code containing said information or via a computer connecting it to an internet link containing said information.

The method according to the invention and its implementation will be described in more detail below with reference to the appended figures, in which: FIG. 1 represents a diagram of the various steps of the method according to the invention, FIG. 2 illustrates a view of the first image obtained by the implementation of the present method, - Figure 3 illustrates a view of a second image obtained by the implementation of the present method, - Figure 4a and 4b illustrate a view of each of the two sides of a certification card issued by an optician to a patient as part of the implementation of the present method.

Claims (9)

1. A method of management and control of the manufacture of spectacles comprising two ophthalmic lenses placed in a frame, in which the values of the anatomical parameters of the patient and of the data relating to the frame are measured and recorded to preserve them; manufactures said ophthalmic lenses on the basis of said measured values and is placed in said frame to obtain said glasses, and generates and stores on a storage medium a first image illustrating a plan view of said glasses on which appear the markings specific to said glasses; ophthalmic, said view being superimposed on calibration means, measurements are made from said markings to determine the values of the parameters relating to the patient and to the frame specific to each ophthalmic lens and the values measured are corrected by means of of said calibration means, characterized in that the correlation of the corrected values is checked. parameters of the patient and frame parameters specific to each ophthalmic lens with values of the parameters relating to the patient and to the frame measured and recorded before the manufacture of said ophthalmic lenses. 2. Method according to claim 1, characterized in that one generates and stores on said storage medium a second image illustrating both a plan view of said glasses on which said ophthalmic lenses comprise markings materializing the parameters relating to the patient. and the mount specific to each of them, and the corrected values of the parameters relating to the patient and to the frame specific to each ophthalmic lens. 3. Method according to claim 2, characterized in that a third image comprising said second image and at least said first image is generated and stored on the storage medium. 4. Method according to any one of the preceding claims, characterized in that associated with the storage medium means for identifying the patient. 5. Method according to any one of the preceding claims, characterized in that a storage medium is used as a storage medium. 6. Method according to any one of the preceding claims, characterized in that a portable storage medium is used. 7. Method according to the preceding claim when dependent on claims 2 to 5, characterized in that stored in the storage medium data attesting the concordance of the corrected values of the parameters relating to the patient and to the frame specific to each glass ophthalmic lens with the values of the parameters relating to the patient and to the frame measured and recorded before the manufacture of said ophthalmic lenses. 8. Method according to any one of the preceding claims, characterized in that a modification is made to the ophthalmic lens (s) in case of absence of agreement between the corrected values of the parameters relating to the patient and to the frame specific to each ophthalmic lens with the values of the parameters relating to the patient and to the frame measured before the manufacture of said ophthalmic lenses. 9. Method according to any one of the preceding claims, characterized in that said first image is used to manufacture new spectacles for said patient.