FR2811530A1 - PRESENTER OF GLASSES - Google Patents

Abstract

The present invention relates to a display (100) for spectacle lenses. According to the invention, it comprises at least two branches (110, 120) for supporting at least two portions of different spectacle lenses (A, B), said branches being movable relative to each other to position said portions of spectacle lenses edge to edge by their diameter.

Description

The present invention relates to a display of spectacle lenses by

a practitioner.

  For the presentation of spectacle lenses, practitioners currently use eyeglasses which include a circular frame accommodating an spectacle lens, this frame being generally pivotally mounted on a presentation tray. An example of embodiment of such a telescope is described in the

document US-A-1,547,142.

  Document EP 0 654 237 belonging to the Applicant also discloses a presentation case for spectacle lens which comprises, on the one hand, a tray suitable for receiving a spectacle lens to be presented, and, on the other hand, two half-shells, which, pivotally mounted at the edge of the tray, are each movable between a closed position, in which they jointly form a protective shell for the tray, and a position

  on the contrary, in which they unmask this one.

  The major drawback of such displays is that they do not allow

  present only one glass of glasses at a time.

  In addition, to demonstrate the effectiveness of an anti-reflection treatment on a spectacle lens, there is already a presentation lens whose center only

is anti-reflection treated.

  Finally, a flat display is already known, provided with slots in which

  are inserted different glasses of glasses cut in half by their diameter.

  However, with such a flat display, the comparison of two different glasses is complex because it requires the manipulation of said glasses.

  especially to extract them from the display.

  In addition, such a display is relatively bulky and impractical.

  In order to overcome the aforementioned drawbacks, the present invention provides a new display for spectacle lenses, which comprises at least two arms for supporting at least two portions of different spectacle lenses, said arms being movable one with respect to the other for

  positioning said portions of spectacle lenses edge to edge by their diameter.

  Thus, thanks to the display unit according to the invention, a practitioner can easily: - demonstrate the effectiveness of an anti-reflection treatment on one of the portions of glasses; - show the difference in curvature between the portions of glasses presented; - show the difference in thickness between the portions of glass presented; and

  - show the asphericity of said portions of glasses presented.

  Other advantageous and non-limiting characteristics of the display unit according to the invention are the following: - said branches are mounted on a plate whose surface facing said branches is capable of absorbing light. Preferably, said surface is of mat black color. This makes it possible to better show the difference which exists between a glass comprising an anti-reflection treatment and a glass without anti-reflection treatment; - Said plate comprises on its edge a plate and each branch comprises on its external edge, at its free end, a plate, the two plates of the aligned branches forming a single plate parallel to that of the plate, making it possible to place the display on a support. Thus, such a display placed vertically, takes up little space on a practitioner's desk; - Said branches are articulated relative to each other by means of a pivot with an axis perpendicular to the plane containing said branches. According to one embodiment of the invention, said branches are fitted one on the other at one of their ends, said fitted ends of said branches being pierced with an orifice for their mounting on the pivot. Said pivot may comprise a screw passing through the superimposed mounting orifices of said branches and screwed into a threaded barrel. The articulated branches are easy to handle; and

  - Said branches have the shape of a semicircle.

  The description which follows with reference to the appended drawings, given at

  title of nonlimiting examples, will make it clear what the invention consists of

  and how it can be achieved.

  In the accompanying drawings: - Figures 1 and 4 are schematic views of a display unit according to the invention, in two closed and open configurations, - Figure 2 is a side view of the display unit according to the invention placed vertically on a support, and

  - Figure 3 is a partial top view of the display of Figure 1.

  In Figures 1 to 4, there is shown a display 100 of spectacle lenses A, B. This display 100 here comprises two branches 110, 120 which have

  each advantageously the shape of a semicircle.

  These branches 110, 120 are capable of supporting, on their inner edge 114, 124, two different half-glasses of glasses B, A. By glasses glass A, B is meant here the puck, of circular outline, which constitutes a such as a spectacle lens A, B before it overflows at the contour of the

  circle or circle of a spectacle frame which he must equip.

  The branches 110, 120 are movable relative to each other to position the half-glasses of glasses B, edge to edge by their diameter (see

Figures 1 and 4).

  Here, said branches 110, 120 are articulated relative to each other by means of a pivot 140 of axis perpendicular to the plane containing

said branches 110, 120.

  The branches 110, 120 are mounted by means of their pivot 140 on a plate 130 whose surface facing said branches 110, 120 is

able to absorb light.

  Preferably, said surface of the plate 130 is of mat black color. The plate 130 here generally has the shape of a disc whose diameter corresponds to the diameter of the circle formed by the two branches 110, positioned in the closed position (FIG. 1) with their two free ends

113, 123 edge to edge.

  The plate 130 comprises, on its edge 132 opposite the mounting of the pivot 140, a plate 131, and each branch 110, 120 comprises on its edge 112,

  122, at its free end 113, 123, a dish 111, 121.

  The two dishes 111, 121 aligned with the two branches 110, 120 brought together, form a single dish, of length substantially identical to that

  of the plate 131 of said plate 130, positioned parallel to the latter.

  As shown more particularly in FIG. 2, the dishes 131, 111, 121 formed on the edge 132 of the plate 130 and on the edges 112, 122 of the branches 110, 120 allow the display stand 100 to be placed vertically on a support S. As more particularly shown in Figure 3, the branches 110, are nested one inside the other at their ends 115, 125 opposite their free ends 113, 123, said nested ends 115, 125 being

  drilled with an orifice for mounting on pivot 140.

  Here, the pivot 140 comprises a threaded barrel 143 positioned between the plate 130 and the branches 110, 120, into which are screwed screws 142, one of the screws 142 passing through the superimposed mounting orifices of said branches 110, 120, and

  The other screw 142 passing through a mounting orifice provided in the plate 130.

  In addition, the heads of the screws 142 are supported on washers 141 resting

  on the external faces of the branches 110, 120 and of the plate 130.

  Around the threaded barrel 143, a cylindrical sleeve 144 is provided, one end of which bears on the internal face of the branches 110, 120, the other end resting on an elastic washer 145 resting on the surface of the plate 130 opposite said branches 110, 120. This elastic washer 145 makes it possible to compensate for the mounting clearances so as to avoid floating in the

  level of the articulation of the two branches 110, 120 with respect to one another.

  The two branches 110, 120 can advantageously be made of translucent material and can comprise, on their external face which faces

  the user, qualifying information for the glasses worn by them.

  As shown more particularly in FIG. 2, the display 100, according to the invention, makes it possible to show the difference in thickness between the two glasses A and B. In particular, it can be seen that the portion of glass B is thicker than the portion of glass A. In addition, thanks to this display 100, it is possible to show the difference in sphericity between the glasses. In the typical case shown, the portion of glass A

  is aspherical while the portion of glass B is spherical.

  The mat black surface of the plate 130 placed opposite the glasses carried by the branches 110, 120 support of the display 100, allows

  show the difference in anti-reflection treatment between the two lenses.

  In particular, the portion of glass A has an anti-reflection treatment while the portion of glass B does not. Such a display 100 is easy to handle, it is compact and takes up little space on a practitioner's desk because it can rest by its dishes 131,

  111, 121 vertically on the desk.

  Finally, the two branches 110, 120 of the display allow manipulation

  easily the portions of glasses A, B to be presented.

  The present invention is in no way limited to the embodiment described and shown, but a person skilled in the art will know how to make any variant.

conforms to his spirit.

  In particular, it can be envisaged that each branch of the display rack supports several portions of glasses, for example two portions of glasses, representing a quarter of glass, so as to be able to position, two by two,

  two portions of glasses by their diameter.

  In addition, the branches of the display can have a shape different from the semicircle shape, for example a U or L shape. Finally, said branches can slide relative to each other at

  instead of being articulated via a pivot system.

Claims (8)

  1. Display (100) of spectacle lenses, characterized in that it comprises at least two branches (110, 120) for supporting at least two portions of different spectacle lenses (A, B), said branches ( 110, 120) being movable relative to each other to position said portions of   glasses of glasses (A, B) edge to edge by their diameter.   2. Display (100) according to claim 1, characterized in that said branches (110, 120) are mounted on a plate (130) whose surface   opposite said branches (110, 120) is capable of absorbing light.   3. Display (100) according to claim 2, characterized in that said surface is mat black.   4. Display (100) according to one of claims 2 or 3, characterized in   that said plate (130) comprises on its edge a plate (131) and each branch (110, 120) comprises on its external edge, at its free end (113, 123), a plate (111, 121), the two dishes (111, 121) of the branches (110, 120) aligned forming a single dish parallel to that of the plate   (130), allowing the display stand to be placed vertically on a support.   5. Display (100) according to one of the preceding claims,   characterized in that said branches (110, 120) are articulated with respect to each other by means of a pivot (140) with an axis perpendicular to the plane   containing said branches (110, 120).   6. Display (100) according to claim 5, characterized in that said branches (110, 120) are nested one on the other at one of their ends, said nested ends (115, 125) of said branches being   drilled with an orifice for mounting on the pivot (140).   7. Display (100) according to claim 6, characterized in that said pivot (140) comprises a screw (142) passing through the mounting holes   superimposed on said branches (110, 120) and screwed into a threaded barrel (143).   8. Display (100) according to one of the preceding claims,   characterized in that said branches (110, 120) have the shape of a Semi circle.