TW201520479A - A cover which can filter energy from particular wavelength of light - Google Patents

Abstract

The present invention discloses a cover which can filter energy from particular wavelength of light. The cover was made from plastic granules after executing molding process. Moreover, the plastic granule consists of a plastic powder, a light diffusing powder and an anti-blue powder. Therefore, a cover which made from said plastic granules can evenly have light diffusion and absorb or filter energy from particular wavelength of light. Furthermore, through the replacement of different polymer materials of said plastic powder can form a variety of covers which adapt to different types of product. The present invention can improve the complex production process problems which need coating an anti-blue film or add an anti-blue layer on the products.

Description

a cover that filters energy at a specific wavelength of light

A cover body capable of filtering the energy of a specific light wavelength, in particular, a cover body made of a plastic masterbatch having light energy diffusion, absorption and filtering energy properties of a specific light wavelength, and subjected to a molding technique.

Nowadays, the cover body is widely used in various equipments, electrical appliances and other equipment and devices. Its main purpose is to protect some important electronic components on the equipment, electrical appliances and other equipment and devices to avoid external damage or The outside is isolated to prevent dust, oil and debris from entering the interior; and the design of some covers, such as lampshades and hoods, not only avoids damage to electronic components, but also increases the aesthetics and improves the utilization of light sources. Prevent glare and other functions.

Furthermore, studies have shown that the blue light in the light belongs to the more powerful visible light. The wavelength of the blue light in the electromagnetic spectrum is between 390 nm and 500 nm. The high energy blue light will penetrate the cornea and the crystal of the human eye and directly into the macula. Part, causing damage to the photoreceptor cells of the macula, and Blu-ray is not only present in general light, but is also more common in the light emitted by various products, such as mobile phone screens, computer screens, LCD TV screens and LED lights. Tube (bubble), etc., especially LED light source commonly used for illumination in daily life. Currently, white LED production technology on the market mainly uses yellow light fluorescent powder to mix blue light generated by blue LED into white light respectively, so many studies have shown White LEDs on the market also have high-intensity blue light; therefore, more and more covers, such as lampshades, lighting masks and even spectacle lenses, are equipped with anti-blue light functions to prevent blue light from injuring human eyes; To solve the above problems, the conventional technology does not have the function of absorbing and filtering blue light due to the raw material for manufacturing the cover body, so it is necessary to add a light blocking layer to the product or plate the product through a coating process. The film can be achieved, for example, the Republic of China Patent Publication No. M463663 "Composition of anti-Blu-ray protective stickers", which discloses a functional layer and a layer on a substrate. The protective film, wherein the functional layer comprises a blue light blocking agent, so that the protective sticker can effectively reduce the damage of the blue light existing on the object during use; and the Chinese patent No. CN103225768 "an anti-blue light table lamp", It is disclosed that a blue light absorbing layer is disposed on the inner surface of the lampshade to perform blue light filtering on the light emitted by the LED light source to reduce blue light emission to protect the human eye from blue light; further, refer to "Fig. 1". For a schematic diagram of a conventional method for manufacturing a specific light-wavelength energy cover, a cover 10 as shown in the figure is first processed by a plastic material into an acrylic sheet 101 by injection molding technology, and then passed through a sticker. Lamination process or coating process attaches or blocks a light blocking layer 102 on the acrylic plate 101, so that the cover 10 is resistant to blue light. Function; In summary, the conventional technology is more complicated in the manufacturing process. Furthermore, the coated product will reduce the brightness and cause a difference in visual brightness. Therefore, how to provide a second processing is not required. A cover that can achieve the anti-blue light function is an urgent problem to be solved.

In view of the above problems, the present inventors have researched and improved the cover body based on years of experience in related industries and manufacturing covers, and can design a physical product that can solve the above problems; thus, the main purpose of the present invention It is directed to providing a cover that directly filters the energy of a particular optical wavelength that has the function of uniformly diffusing light and absorbing and filtering the energy of a particular wavelength of light.

In order to achieve the above object, the cover body of the present invention can filter the specific wavelength energy of the light, and directly applies a plastic masterbatch composed of a plastic powder body, a light diffusion powder and an anti-blue light powder to the injection molding. (Injection Molding), extrusion, extrusion molding or Pultrusion molding technology processing; after the shell is formed, the light can be directly diffused, and the specific light can be absorbed and filtered. Wavelength energy, such as blue light in the wavelength range of 390 nm to 500 nm.

In order for your review board to have a clear understanding of the contents of the present invention, please refer to the following description only.

10‧‧‧ Cover

101‧‧‧Acrylic sheet

102‧‧‧Light barrier

20‧‧‧Mask that filters energy at specific wavelengths of light

201‧‧‧Plastic masterbatch

2011‧‧‧Plastic powder

2012‧‧‧Light diffusing powder

2013‧‧‧Resistant to blue light powder

2014‧‧‧Anti-UV powder

30‧‧‧Mask that filters energy at specific wavelengths of light

40‧‧‧Fences that filter energy at specific wavelengths of light

50‧‧‧Mask that filters energy at specific wavelengths of light

60‧‧‧Mask that filters energy at specific wavelengths of light

70‧‧‧A cover that filters the energy of a specific wavelength of light

L1, L2‧‧‧ rays

L2’‧‧‧ Refracted light

L3‧‧‧Blue light

L4‧‧‧UV light

Figure 1 is a schematic illustration of a conventional manner of manufacturing a specific energy-resistant energy envelope.

Fig. 2 is a perspective view of the present invention.

Figure 3 is a schematic cross-sectional view showing the operation of the light of the present invention.

Fig. 4 is a perspective view showing another embodiment of the present invention.

Figure 5 is a cross-sectional view showing the operation of light according to another embodiment of the present invention.

Figure 6 is a schematic view of a cover of a grille lamp according to the present invention.

Fig. 7 is a schematic view (1) of a cover body of a lamp tube according to the present invention.

Figure 8 is a schematic view (2) of the cover body of the lamp tube according to the present invention.

Figure 9 is a schematic view of a cover body of a light bulb according to the present invention.

Figure 10 is a schematic view of a cover body implemented in a lighting cover of the present invention.

Please refer to FIG. 2, which is a perspective view of the present invention. As shown in the figure, the cover 20 of the present invention can filter the energy of a specific wavelength of light, which is a plastic master 201. As the main raw material, and directly molding the plastic masterbatch 201 by injection molding, extrusion, extrusion molding or pultrusion molding, wherein the plastic masterbatch is formed. 201 is mainly composed of a plastic powder body 2011 (also known as a small particle size plastic particle), a light diffusing powder 2012 and a primary anti-blue light powder 2013, so that the cover can filter the specific wavelength energy of the light. 20 After direct molding, it is not necessary to carry out complicated procedures such as post-processing or coating processing, so that the light can be uniformly diffused and absorbed. And the function of filtering the energy of a specific light wavelength, especially a blue light having a wavelength ranging from 390 nm to 500 nm.

Please refer to "Fig. 3", which is a schematic cross-sectional view of the light operation of the present invention. As shown in the figure, the cover 20 made of plastic masterbatch 201 can filter the energy of a specific wavelength of light. Uniformly diffusing light, and further directly absorbing and filtering blue light having a wavelength ranging from 390 nm to 500 nm; wherein the plastic powder 2011 (also referred to as a plastic particle having a small particle size) is a thermoplastic polymer, such as Polycarbonate (PC), polyethylene terephthalate (PET), polystyrene (PS) and polymethylmethacrylate (PMMA), etc. The rate is above 88%, and has good transparency. As shown in the figure, when a light L1 passes through the plastic powder 2011, the cover 20 which can directly filter the energy of the specific wavelength of light can be absorbed and filtered. The light ray L1 refers to light having a wavelength ranging from 390 nm to 500 nm; further, the light diffusing powder 2012 is a Silicone resin, and the commonly used oxime resin can be roughly classified into a methyl group. a side chain, or a phenylene oxide with a side chain The chain structure, wherein the methyl ether is a side chain of the epoxy resin, has excellent thermal stability, and the refractive index of the light ranges from about 1.41 to 1.42, and the light refractive index of the aforementioned plastic powder 2011 (PMMA) The difference is 1.49, PET is 1.58, and PC is 1.59. The light diffusion efficiency depends on the difference in refractive index between different media. In other words, the greater the difference in refractive index between the media, the larger the angle of light deflection. Make the haze and uniformity of the light higher, please refer to the figure, when one When the light L2 passes through the light-diffusing powder 2012, it is refracted to form a refracted light L2', which deviates from the original light path and penetrates the cover 20 which can filter the energy of the specific light wavelength, and is mixed with the methyl group as the side chain. The cover 20 made of an oxyresin that can filter the energy of a specific wavelength of light can greatly improve the haze and uniformity of the light; further, the anti-blue-light powder 2013 is a yellow pigment (Pigment yellow), especially Color index number (CInumber) is a yellow toner of CI11680 (CIPigment yellow 1), CI11665 (CIPigment yellow 4), CI21090 (CIPigment yellow 12) or CI73462 (CIPigment yellow 13), due to blue The color and the yellow color are complementary colors, and the important characteristic of the complementary color means that a color light is irradiated onto the complementary color object, and the color light is absorbed by the complementary color object, as shown in the figure, when a blue light L3 passes through the anti-blue light powder. At the time of the body 2013, it is absorbed and filtered by the anti-blue light powder 2013, so that the blue light L3 cannot penetrate the cover 20 which can filter the energy of the specific light wavelength.

Please refer to FIG. 4, which is a perspective view of another embodiment of the present invention. An ultraviolet ray (or ultraviolet light) having a wavelength ranging from 280 nm to 380 nm may damage human skin and cause skin to act. Red spots, melanin precipitation, and even skin cancer, etc., as shown in the figure, the cover 20 capable of filtering specific wavelength energy of the present invention can be further composed of plastic powder 2011, light diffusing powder 2012, and anti-blue light powder 2013. And the primary anti-ultraviolet powder 2014 is composed to achieve the function of uniformly diffusing light, and absorbing and filtering ultraviolet light and blue light; wherein the anti-ultraviolet light powder 2014 is an ultraviolet light absorber, which is a kind Light stabilizer that absorbs ultraviolet light from sunlight and fluorescent light sources (especially It refers to the ultraviolet light in the wavelength range of 280 nm to 380 nm, and it remains stable and does not change. Please refer to "figure 5", which is a schematic cross-sectional view of light operation according to another embodiment of the present invention. As shown in the figure, when an ultraviolet light L4 passes through the anti-ultraviolet powder 2014, it is absorbed and filtered by the anti-ultraviolet powder 2014, so that the ultraviolet light L4 cannot penetrate the cover which can filter the energy of the specific light wavelength. 20, however, the light L1 can directly penetrate the cover 20 which can filter the energy of a specific light wavelength, wherein the light L1 refers to light having a wavelength ranging from 280 nm to 380 nm and 390 nm to 500 nm.

In view of the above, according to the difference in user requirements, by combining the characteristics of different materials, the cover 20 can be molded to adapt to different specifications and types of products, and the specific light wavelength energy can be filtered. Plastic powders of polymer materials 2011, such as polycarbonate (Polycarbonate, PC), polyethylene terephthalate (PET), polystyrene (PS) and polymethacrylic acid For the methyl ester (PMMA), etc., please refer to "Fig. 6", which is a schematic view of the cover of the present invention implemented in the grille lamp, as shown in the figure, when one of the filters can be filtered When the cover 30 of the optical wavelength energy is implemented in a grid lamp, it can be formed into a film shape (thickness ranging from about 0.025 mm to 0.7 mm) or a plate shape (thickness ranging from about 0.7 mm to 3 cm). It can also be implemented in a cover such as a downlight and a projection lamp; please refer to "Fig. 7" and "Fig. 8", which is a schematic view of the cover of the lamp tube according to the present invention. And b), as shown, when one of the covers can filter the energy of a specific wavelength of light When the (40, 50) implemented in a tube, which can be formed into a tubular Or semi-circular; please refer to "Fig. 9", which is a schematic view of the cover of the present invention implemented in the present invention, as shown in the figure, when one of the covers 60 can filter the energy of a specific wavelength of light In the case of a light bulb, it can be formed into a spherical shape; please refer to "Fig. 10", which is a schematic view of the cover of the present invention implemented in the lighting cover, as shown in the figure, one of the filters can be filtered. The cover 70 of the specific optical wavelength energy can be implemented on a lighting cover of the construction industry to improve the problem that the conventional light cover can only absorb and filter ultraviolet light, but cannot absorb and filter blue light. Furthermore, the present invention can be implemented. The cover of the lighting fixture (such as a street lamp, a street lamp, etc.) can also be implemented on a mobile phone screen panel, a computer screen panel, a protective glasses and a contact lens, etc., however, the foregoing cover can filter the specific wavelength energy of the light. The embodiment of the body (30, 40, 50, 40, 70) is only an embodiment of the present invention, and should not be limited thereto.

It can be seen from the above that the cover body capable of filtering the specific wavelength energy of the present invention mainly uses a plastic powder body, a light diffusion powder and a blue powder resistant powder as a raw material. After the injection molding, extrusion molding or pultrusion processing is performed, the manufacture of the cover body is completed, wherein the plastic powder body is a high-transmittance thermoplastic polymer, and The light-diffusing powder is a silicone resin having a high difference in refractive index from the plastic powder. Further, the anti-blue light powder is a yellow toner; after the cover is formed, the light can be directly diffused, absorbed and filtered. The function of the specific wavelength energy of the light, and by replacing the plastic powder of the different polymer materials, the molded cover can be adapted to different specifications and types of products, and accordingly, the present invention can be achieved after implementation according to the present invention. Provide a direct It has the purpose of a cover that uniformly diffuses light and absorbs and filters the energy of a specific wavelength of light.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention All should be covered by the patent of the present invention.

20‧‧‧Mask that filters energy at specific wavelengths of light

201‧‧‧Plastic masterbatch

2011‧‧‧Plastic powder

2012‧‧‧Light diffusing powder

2013‧‧‧Resistant to blue light powder

Claims (9)

A cover body capable of filtering energy of a specific wavelength of light, capable of absorbing and filtering blue light having a wavelength range of 390 nm to 500 nm, comprising: using a plastic masterbatch as a raw material, the plastic masterbatch is composed of a plastic powder body, a light-diffusing powder of a fluorinated resin having a methyl group as a side chain, and a blue-light-resistant powder having an absorption and filtering of the blue light; and a molding technique applied to the plastic mother particle A cover that filters the energy of a particular wavelength of light. The cover body of claim 1, wherein the plastic powder is a polycarbonate, a polyethylene terephthalate, or a polyethylene terephthalate. Any of polystyrene or polymethylmethacrylate. The cover body of claim 1, wherein the anti-blue light powder is a yellow toner. a cover body capable of filtering energy of a specific light wavelength as described in claim 3, wherein the yellow toner is any one of yellow toners of color index 11680, color index 11665, color index 21090 or color index 73462 or It's mixed. The cover body of claim 1, wherein the plastic masterbatch further comprises an ultraviolet light absorber, so that the prepared cover body can filter the specific wavelength energy of the light, It has an ultraviolet light that absorbs and filters light with a wavelength ranging from 280 nm to 380 nm. A cover that filters the energy of a particular wavelength of light as described in claim 1 The body, wherein the cover capable of filtering energy of a specific light wavelength is any one of a film shape, a plate shape, a tubular shape, a semicircular shape, or a spherical shape. A cover body capable of filtering energy of a specific light wavelength as described in claim 1 wherein the molding technique is an injection molding technique. The cover body of claim 1, wherein the molding technique is an extrusion molding technique. A cover body capable of filtering energy of a specific light wavelength as described in claim 1 wherein the molding technique is a pultrusion technique.