Fabric lens cloths, for manual use, for cleaning and maintaining optical lenses

Abstract

This innovative device is characterized by smaller optical lens wipers which, thanks to their high-quality operation, offer the same function but with greater efficiency than larger, traditional eyeglass lens wipers. The solution adopted by this industrially applicable device represents not only a technical improvement but also an economic one, resulting in substantial savings through a significant reduction in the amount of material (fabric) used. This translates into a sharp decrease in manufacturing costs [Figure 1A].

Description

Title of the invention: Manual fabric lens cloths for cleaning and maintaining optical lenses

[0001] The object of the present invention is a new process for the economical manufacture of flexible, hand-operated wiping materials made of natural or synthetic fabrics (excluding impregnated or unimpregnated papers) for cleaning and maintaining various objects, articles, materials and substances such as:

[0002] Specifically, eyeglass lenses or lenses for protection against sunlight, but also lenses and optical lenses for all technical, scientific, and photographic equipment. These cleaning and maintenance devices may be printed with artistic and / or advertising designs.

[0003] The invention is characterized by the means implemented taken as a whole or separately and more particularly by the following considerations.

[0004] It should be noted that up to now and at present the aforementioned materials and more specifically eyeglass wipers have always been manufactured within certain minimum dimensional and surface limits, whether it be eyeglass wipers, in particular in high or medium density microfiber, or any other materials of the same function in fabrics.

[0005] Thus, a person skilled in the art of the relevant technical field, whether an industrial or artisanal manufacturer or simply an informed user, knows that the dimensional and surface area of ​​glass wipers has always been within the following ranges, without ever exceeding the lower dimensional and surface area limits of the smallest size, namely: 130 x 90 mm (11,700 mm²), 150 x 90 mm (13,500 mm²), 150 x 100 mm (15,000 mm²), 145 x 110 mm (15,950 mm²), 165 x 110 mm (18,150 mm²), 140 x 140 mm (19,600 mm²), 150 x 150 mm (22,500 mm²), 180 x 180 mm (32,400 mm²), and all other larger sizes. possible, which constitute the traditional common sizes on the market.

[0006] To further demonstrate the innovative nature of the industrial application process of the invention, which results in a technical and economic improvement of an existing product, it is also necessary to consider the operation of a manual lens wiper. Specifically, to achieve good cleaning results on spectacle lenses or optical lenses, a fabric (microfiber or other) lens wiper, 140 mm long, folded in the middle to allow for the translation / gliding / pressure / rubbing movement performed on the optical lens by the hand of the user, is required. most often by grasping the tissue between the thumb and index or middle finger (see figures IA and IB)

[0007] Considering that the 140 mm length of the lens wiper is a determining and sufficient factor, the same cannot be said of the width, which, while sufficient in traditional sizes, is not necessarily required. A width of 50 mm is more than sufficient for excellent cleaning results on optical glass or lenses.

[0008] This reduced width is not only sufficient but also constitutes a technical improvement for cleaning spectacle lenses since this width, conforming to the width of the majority of optical lenses, allows for good contact on both surfaces of the lenses (top / bottom) and thus the applied movement of Translation / Gliding / Pressure / Friction is carried out with total application on the lens (see figures IA and IB), whereas with wider traditional lens wipers the application of the lens wiper is carried out with an application in the shape of an inverted curve (see figures 2A and 2B) on the edges of the additional width of the fabric, which is supported in the width direction of one side of the lens on an edge of the frame and on a temple of the frame,and on the other side, on the bridge located between the two lenses of the frame, thus preventing the fabric from lying perfectly flat as one can with a fabric width of 50 mm, and furthermore, constitutes a hindrance (through friction at the inverted curves) to the proper execution of the aforementioned movement.

[0009] The effective action of the cloth on a spectacle lens is better understood when one knows that with modern lens cloths the cloth is generally made of high-density microfiber, 240 g / m², knitted from 20 decitex yarn, with 576 strands of approximately 5 microns. Such a cloth acts by capillary action and a "razor" effect on the surface of the lens during the aforementioned movement, absorbing micro-impurities and greasy films from the lens surface.

[0010] Furthermore, it will be retained for the present invention that a rectangle of 140X50 mm with an area of ​​7,000 mm2 constitutes an ideal size allowing a significant saving of material and therefore a very sharp reduction in the cost price compared to the sizes, until now traditional, mentioned below.

[0011] As proof, if we consider even the smallest of the traditional sizes, 130X90 mm with a surface area of ​​11,700 mm2, we find that the solution resulting from the invention allows a material saving of at least 40% and therefore much more for all other common traditional sizes.

[0012] It is specified that the present process relates to small formats (sizes) of glass cloths which are intended to be used as is, manually, without being connected to, incorporated into, or attached, in whole or in part, any ancillary material. It is also specified that these small formats may be printed for advertising purposes. in particular, they are intended for opticians and professionals in the optics and photography sector.

[0013] These small formats, necessarily rectangles, will have scalloped edges (notched in pointed or rounded shapes), straight, or even elliptical edges (see figures 3A, 3B, 3C, 3D, 3E).

[0014] It is specified that the scope of protection of the exclusive exploitation right of the present invention covers all small fabric glass wipers, for manual use as designated below, remaining within dimensional and surface limits of rectangles of 140X50 mm or 150X60 mm maximum and (or) of 9,000 mm2 maximum and it also covers any formats smaller in surface area and size.

Claims

Demands

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4. Smaller glass wipers. Better efficiency than larger glass wipers. Technical improvement of the device. Economic improvement of the device.

Images