FI13368Y1 - Arrangement for producing glasses - Google Patents

Abstract

An arrangement for producing glasses, which arrangement comprises an eyeglass sales configurator, a 3D printer (2), a lens manufacturer (3) and assembly (4) of lenses and a frame, characterized in that the eyeglass sales configurator has actuators for shaping the lenses (14 ) and the arc.

Description

ARRANGEMENT FOR MANUFACTURE OF GLASSES

The object of the invention is an arrangement according to protection claim 1 for the manufacture of spectacles.

Eyeglasses are typically purchased in such a way that the customer chooses the frames he likes from the selection of frames in the eyeglass store, and after ordering, lenses manufactured with the appropriate strengths based on an optician's or ophthalmologist's eye examination are installed. = An arrangement like the one mentioned above requires large stocks of frames, from which the customer can choose the one he likes. A large warehouse is a big cost factor and it is not possible to keep small lots on display for cost reasons. Similarly, owning or renting a store creates cost pressure on the pricing of glasses. In addition to these, staff are still needed for customer advice and service.

Eyeglasses vendors have tried to solve the problems caused by high costs by developing different solutions to reduce the inventory of eyeglass frames.

In such solutions, for example, a 3D model of the customer's face can be created on the computer screen, to which various — frame models can be fitted with the help of a computer application. In this case, the frame models do not have to be physically in stock, but the customer can see on the computer screen how the frames fit his face, and the order for the frames can be made directly from the manufacturer or from the central warehouse.

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N The applications in use provide some customization options for the glasses,

S 25 — such as the length of the handle, the size of the bridge of the nose, the width of the lens or the height of the lens. Typically = however, staff and sales premises are needed to help with the matching event, where

Matching of E virtual frames takes place. ©

I The purpose of the invention is to create an arrangement where the customer can himself in his own peace

S 30 — to go through the entire process of purchasing glasses and get the glasses of your choice at home. > The arrangement includes a browser-based glasses sales configurator, which enables the selection of eyeglass lenses, the selection of a frame model, the ordering of glasses and the printing of the ordered glasses with a 3D printer, as well as the delivery of the glasses to the customer.

The condition of the customer's eyes and the need for lens strengths are further assessed by an ophthalmologist or optician.

The solution according to the invention is characterized by what is defined in the distinguishing mark part of the independent protection claim. Other advantageous embodiments according to the invention are presented in the subclaims.

In the following, the invention is explained in more detail by means of application examples — with reference to the accompanying simplified drawings, in which Figure 1 shows as a simplified diagram the arrangement according to the invention, Figure 2 shows a preferred embodiment of the rolling beams according to the invention, Figure 3 shows a preferred embodiment for shaping the lens, and — Figure 4 shows a preferred embodiment of the field of view sector .

Figure 1 shows the arrangement according to the invention as a simplified diagram.

The arrangement comprises at least one computer 1 on which a browser-based spectacle sales configurator is installed. With the help of a browser-based computer program, the glasses sales configurator, it is possible to define the shape of the desired frames and the shape of the lenses to be installed in the frames. In this context, the frame refers to both the part that borders the lenses, at least partially, and the eyeglass frames, which together form the frame unit. The arrangement also includes at least one 3D printer & 2, which prints the frame model created with the eyeglass sales configurator. The 3D printer a. 25 2 is illustrated in Figure 1 with a picture of the production facility. The lenses for the frames according to the frame model created with the eyeglass sales configurator a are obtained from the lens manufacturer 3, who receives = information about the shape of the lenses from the information of the eyeglass sales configurator. The lenses are attached to the frames either by the lens manufacturer, the frame manufacturer or a separate contract manufacturer =. In this example, the finished frames and lenses are delivered to a separate 2 30 — contract manufacturer, who finishes the glasses for use. Ready-made glasses

N is delivered to the customer by the post office or a similar package supplier. In figure 1, the assembly 4 of lenses and frames, i.e. glasses, is depicted with a picture of the production facility.

Information from the eyeglass sales configurator to lens and frame manufacturers flows according to arrows 5 and 6 in the figure. Likewise, finished frames and lenses move to assembly 4 according to arrow 7. The assembled glasses are transferred to the customer according to arrow 8.

The arrangement according to the invention enables the purchase of individual 3D-printable glasses at a convenient time for the customer without the restrictions set by the opening hours of the sales point. A customer who needs eyeglasses obtains the necessary information about the strength of the lenses and can use the eyeglass sales configurator to choose the frames that suit him and modify the frames and the appearance of the lenses in such a way that they please him. — Editing of the glasses can be completed at once during the same session, or partially made selections can be saved for later continuation of the process.

Computer 1 is used to input the basic information of the customer into the browser-based eyeglass sales configurator, which may include one or more of the following information: 3D image of the face, — eyeglass prescription information for lens manufacturing, choices related to post-treatment of lenses. A 3D image of the face can be obtained inexpensively by shooting with a smartphone or tablet.

The position of the head on the computer screen can be turned to different positions, giving a general impression of how the glasses fit the customer when viewed from different directions. Eyeglasses — are positioned over the face image using the position of the pupils and the field of view sector. The positions of the pupils and the visual field sector are aligned. The field of vision sector also serves as an aid in assessing coverage areas. — At the same time — the — price conversions — caused by different lens selections/frame selections — are obtained = on the computer — screen, — so — the financial impact of the choices/changes made can be evaluated in real time a. 25 — on the price of the glasses.

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Figure 2 shows an advantageous, simplified view of the menus 10 of the configurator for glasses, which can be used to adjust the shape of the lenses and, as a result, the frames. Adjusting frame arcs and temples, i.e. shaping, takes place 2 30 — with the help of scroll bars 11, the radius of the arc of the lens and the tangent point (horizontal or vertical)

N by changing the measurement distance from the pupil. The changes made are updated on the screen in seconds or even without noticing a delay. Designing, fitting and color selection is done by the customer himself virtually using 3D models of the face and frames, therefore there is no need for business premises and customer service. The customer can do the necessary 3D face scan with a smartphone or tablet. To purchase an eyeglass prescription, he can use an ophthalmologist, an optician, an online eye examination or occupational health services. — The geometric constraints of the scroll bar 11 are displayed, for example, on the principle of two overlapping images. The darker color describing the limitations 12 remains in the background behind the movable scroll bar 11. The length and positioning of the movable roller beam 11 in relation to the constraint 12 is calculated according to its allowable change steps. With the help of geometric constraints 12, the existence of each frame arc is ensured, so that the arcs always connect to each other — tangentially. A superimposed image of the rolling beam 11 is shown in Figure 3.

Figure 3 shows one eyeglass lens 14 and the rolling bars 11, 15, 16 and 17 that enable its shaping. The operation of the rolling bars 15, 16 and 17 is similar to the operation of the rolling bars 11 described earlier. For each of the adjustable — main arcs of the lens 14, there are three scroll bars 11, 15 and 16, which adjust the arc length, curvature and distance from the pupil. The limits 12 of the arcs of the lenses 14 are visible as darkened areas at the ends of the scroll bars 11, 15, 16 and 17, if necessary. The rolling bars 15 inside the lens 14 adjust the distance of the center of the main arc from the pupil. The rolling bars 16 in the corners of Figure 3 adjust the width and height of the lens, i.e. the length of the main arcs. The main arcs — connect — to each other — with tangential — rounding arcs — Also — the radius of the tangential rounding arcs can be changed with rolling bars 17.

The shaping of the buckets and the rest of the frame is done respectively with the help of the rolling bars that affect the shape of the buckets and the rest of the frame. Separate rolling bars can be moved a. 25 — to change the different shapes of the buckets. All frame changes are possible by adjusting the scroll bars. The roller beams are positive and negative. The finished frame template can be = saved and loaded into the session using the buttons. i = Figure 4 shows the visual field sector of the glasses viewed from the side. Field of vision sector 2 30 — is depicted by straight lines 20 emanating from the pupil, and direct gaze by line 21.

N The field of view sector according to Figure 4 is formed with the help of 50" (up) and 70" (down) viewing angles. The position of the head 22 on the computer screen can be turned to different positions, giving a general impression of how the glasses 23 fit the customer when viewed from different directions.

Eyeglasses 23 are positioned over the facial image using the position of the pupils 24 and the visual field sector. The positions of the pupils 24 and the field of view sector are aligned.

The field of view sector is scaled to the correct size according to the pupil distance measurement (PD value of the lens prescription) provided by the user. The field of view sector is preferably deliberately 5 transparent on the computer screen, so that it also serves as an aid when evaluating coverage areas.

Angles with field of view sector selection (isometric, front, right, left, top) are also used as an aid in the visual quality control of orders and as documentation attached to the order confirmation letter. — In addition to eyeglasses, the invention can of course also be used for sunglasses with or without powers. The invention enables customer participation and unisex suitability. The configurator allows the design of standard 8-arc lens shapes (pilot, butterfly, round, rectangle, etc.) and different frame types (full, half, rimless, tapered). Order-based operation brings advantages in pricing, — carbon footprint, logistics and delivery times.

The quality impression of the frames can be improved with decorative shapes, free or licensable patterns that can be hydrodiped, multi-color and metal printing. With the help of a voluntary customer survey (age group, gender, ethnicity, wishes, etc.) and 3D model parameters, you can do — customer profiling and machine learning, which can be used to suggest frame shapes suitable for the face.

First, the lens shape model is selected, on the basis of which the design of the glasses/sunglasses & lenses begins. In the option selections of the configurator, you can find the definition of the frame type and color. a. 25 — The user can save his own plan in the template menu during the session. a The base selection can also be changed after formatting, in this case the pre-defined shape = replaces the shape shown on the screen. i = The roller bars 11, 15 and 16 for shaping the lens 14 work one at a time, push 2 30 and pull according to the principle. The beams seem to drag the shape lines of the lens 14.

N The shape lines have geometrical restrictions in order to make the shape of the lens 14 smooth. The darker color of the beam shows the geometric constraints for the movement of the rolling beams 11, 15 and 16.

The 14 shapes of the lenses can be adjusted by adjusting the eight curves of the lenses individually or together. You can save your own lens design with the button in the template menu.

It is clear to a person skilled in the art that the invention is not limited exclusively to the examples presented above, but can vary within the scope of the protection requirements presented below. The term glasses or spectacles has been used above, but it must be understood that the terms also include prescription sunglasses. The above-mentioned examples show different solutions for the structure of the parts of the arrangement according to the invention, and the presented details can be combined freely, in which case it is also possible to end up with a solution that is not directly — presented in the figures or in the explanation as such a whole.

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Claims (6)

PROTECTION REQUIREMENTS 1. An arrangement for producing glasses, which arrangement comprises an eyeglass sales configurator, a 3D printer (2), a lens manufacturer (3) and assembly (4) of lenses and a frame, characterized in that the eyeglass sales configurator has actuators for shaping the lenses ( 14) and the beg. 2. Arrangement according to claim 1, characterized in that the actuators of the eyeglass sales configurator are scroll strips (11, 15, 16) which are scrolled to set smooth curves forming the lens (14). 3. Arrangement according to protection claim 1 or 2, characterized in that the actuators of the glasses sales configurator are rolling strips (11, 15, 16) which are rolled to set the frame of the glasses or some other shape of the glasses. 4. Arrangement according to one of the preceding protection requirements 1 - 3, characterized in that the actuators of the glasses sales configurator are scroll strips (11, 15, 16) whose function is limited so that the curves forming the lens (14) must be continuous. 5. Arrangement according to any of the preceding protection claims 1 - 4, characterized in that the positions of the field of view sector and the pupils (24) are set to correspond with each other to position the glasses (23) on a face image. 6. Arrangement according to any of the preceding claims 1 - 5, characterized in that the glasses sales configurator is a browser-based computer program. O N O N < O <t N I a a 00 O <t mM N O N >