CN218763001U - Anti-glare film with honeycomb microstructure - Google Patents

Abstract

The utility model provides a honeycomb microstructure anti-glare film, which comprises a transparent PET/PC film and a plurality of unit microstructures, wherein the unit microstructures are carved on the surface of the transparent PET/PC film; a group of 120 circles of concentric circles with equal spacing is cut into unit microstructures through an inscribed equilateral hexagon of the outermost circle of the group of 120 circles of concentric circles; the vertex angle of the equilateral hexagon is 100 degrees; the unit microstructures are sequentially spliced together, the depth of each unit microstructure is 30 micrometers, and the length of an inscribed equilateral hexagon edge of an outermost circle of each unit microstructure is 72 micrometers; the utility model discloses possess better shielding light source effect when anti-dazzle, when the cooperation diffusion barrier used, can hide the backlight of straight following formula panel light well, the lamps and lanterns light-emitting is even, soft.

Description

Anti-glare film with honeycomb microstructure

Technical Field

The utility model belongs to the technical field of anti-dazzle membrane, a honeycomb microstructure anti-dazzle membrane is related to.

Background

In recent years, LED illumination is more and more popular, an original grille lamp is replaced by an LED panel lamp in many places, the conventional grille lamp realizes anti-glare through an aluminum grille, but for the LED panel lamp, the structure of the LED panel lamp is flat, and a light-emitting surface is a plane, so that the Unified Glare Rating (UGR) can be reduced only by using a film or a plate with an anti-glare effect.

At present, in order to realize the anti-glare effect, a plurality of LED panel lamp manufacturers use prism plates made of PS materials. The production mode of the prism plate is divided into extrusion molding and hot press molding, the prism plate produced by the two processes has the greatest defect that a Unified Glare Rating (UGR) smaller than 16 cannot be realized under high light efficiency, the light efficiency of a lamp is reduced for realizing the anti-glare effect by many manufacturers, the efficiency of the lamp is lost, the energy-saving and environment-friendly effects of LED illumination are against the background, the development of the LED illumination tends to be towards the direction of higher light efficiency and more energy saving, and therefore the prism plate cannot follow the development of the LED illumination.

In addition, the LED panel lamp using the prism sheet generally emits light unevenly, and specifically, after the lamp is turned on, the light-emitting surface looks like alternating bright and dark lines.

In addition, the prism sheet made of PS material generally yellows after being used for one year.

Disclosure of Invention

An object of the utility model is to provide a honeycomb microstructure anti-dazzle membrane to solve the problem that proposes among the above-mentioned background art.

The purpose of the utility model can be realized by the following technical proposal: the honeycomb microstructure anti-glare film comprises a transparent PET/PC film and a plurality of unit microstructures, wherein the unit microstructures are engraved on the surface of the transparent PET/PC film;

a group of 120 circles of concentric circles with equal spacing is cut into unit microstructures through an inscribed equilateral hexagon of the outermost circle of the group of 120 circles of concentric circles; the vertex angle of the equilateral hexagon is 100 degrees;

the unit microstructures are sequentially spliced together, the depth of each unit microstructure is 30 micrometers, and the length of the edge of an inscribed equilateral hexagon of the outermost circle of each unit microstructure is 72 micrometers.

Compared with the prior art, the utility model discloses honeycomb microstructure anti-dazzle membrane's advantage does: the LED panel lamp can realize that the unified glare value (UGR) is less than 16 under the luminous flux of 3200 lumens, and especially the unified glare value (UGR) of the lamp is less than 16 under the high luminous efficiency of 120 lumens/watt and above. When the Unified Glare Rating (UGR) of the prism plate on the market is less than 16 at present, the luminous flux is only about 2500 lumens, and the effect is much worse than that of the utility model; in addition, the utility model has better light source shielding effect while preventing glare, when used in cooperation with a diffusion film, the back light source of the direct type panel lamp can be well hidden, and the light emitting of the lamp is uniform and soft; in addition, the utility model discloses use PET PC material or PC material to make the substrate, have splendid anti-yellowing effect, can not turn yellow under the long-term use.

Drawings

Fig. 1 is a schematic structural view of a honeycomb microstructure anti-glare film according to the present invention;

fig. 2 is a schematic structural diagram of the boundary between two adjacent parallel rows of unit microstructures after the unit microstructures are spliced according to the present invention.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in FIG. 1, the anti-glare film with honeycomb microstructures of the present invention comprises a transparent PET/PC film and a plurality of unit microstructures, wherein the unit microstructures are engraved on the surface of the transparent PET/PC film;

a group of 120 circles of concentric circles with equal spacing is cut into unit microstructures through an inscribed equilateral hexagon of the outermost circle of the group of 120 circles of concentric circles; the vertex angle of the equilateral hexagon is 100 degrees;

the unit microstructures are sequentially spliced together, the depth of each unit microstructure is 30 micrometers, and the length of the edge of an inscribed equilateral hexagon of the outermost circle of each unit microstructure is 72 micrometers.

The anti-glare film consists of a transparent PET/PC film and unit microstructures, wherein the transparent PET film can be replaced by a PC material.

The preparation process comprises the following steps: the unit microstructure is precisely carved, the specific form is shown in figure 1, the microstructure of a product is formed by cutting 120 circles of concentric circular edge lines with vertex angles of 100 degrees into regular hexagons and splicing, the depth is 30 micrometers, the edge spacing is 72 micrometers, and the structure is determined to be capable of converging light rays of an LED flat lamp to within 85 degrees through simulation measurement and calculation of Lighttools software, so that high-angle light above 65 degrees is inhibited, visual glare is reduced, and the UGR value of the lamp is effectively reduced.

The special UV light curing adhesive is prepared according to UV light source parameters of UV coating equipment, the viscosity required by the product is 200CPS, the complete curing time is less than 2 seconds (the thickness increasing time is increased), the elongation is less than 0.02%, and the light transmittance is more than 93%.

Splicing the designed microstructures into a large-size mother plate in a holographic array mode, metalizing the surface of the structure by evaporation, and coating the mother plate subjected to evaporation to form a working plate. The method comprises the steps of uniformly coating a specially-made UV light curing adhesive on an optical PET/PC film or a PC plate in a thousand-level dust-free workshop through UV coating equipment, rolling a die, and then transferring a nano structure onto the optical PET/PC film or the PC plate through UV curing, so that the anti-glare film or plate is produced.

In the official batch production, in order to avoid the damage of the precision mold, the cost of one mold is more than 80 ten thousand, and the nano structure is easy to damage in the production. The produced product is used as a template (mother film), the microstructure can be copied to a light and thin optical-grade nickel plate through a transfer printing copying technology, the rough blank roller is coated with a nickel plate mold, the nickel plate is used as a production mold, and batch production is carried out, so that the use cost of the mold can be further reduced.

The UV coating produces a coil material, and the material can be cut into sheets with different sizes in a dust-free room according to different requirements of customers so as to be suitable for lamps with different sizes.

The utility model discloses a notice, the utility model discloses a through UV coating technology with on the unit micro-structure rendition of mould reaches optics level transparent PET PC membrane or PC panel, the UV that uses glues for optics level transparent light is glued admittedly, because the UV coating is low temperature technology, can not produce wearing and tearing to the mould, the very suitable precision and the uniformity that keep the micro-structure of UV coating technology, the micro-structure product of producing is higher than the precision of arris brilliant board. In addition, the UV coating is in a continuous production and roll-to-roll mode, the production efficiency is high, and products are easy to cut into different sizes so as to meet the requirements of different customers.

In addition, the structure of the anti-glare film and the plate with the unit microstructure is in a micron-scale structure, so that a lamp using the anti-glare film or the plate with the microstructure looks softer when being turned on, and the structure of the prismatic crystal plate is larger and generally looks more dazzling.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (1)

1. The honeycomb microstructure anti-glare film comprises a transparent PET/PC film and a plurality of unit microstructures, and is characterized in that the unit microstructures are engraved on the surface of the transparent PET/PC film;

a group of 120 circles of concentric circles with equal spacing is cut into unit microstructures through an inscribed equilateral hexagon of the outermost circle of the group of 120 circles of concentric circles; the vertex angle of the equilateral hexagon is 100 degrees;

the unit microstructures are sequentially spliced together, the depth of each unit microstructure is 30 micrometers, and the length of the edge of an inscribed equilateral hexagon of the outermost circle of each unit microstructure is 72 micrometers.

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