CN211826776U - Blue light prevention lens - Google Patents

Abstract

The utility model discloses a prevent blue light lens, including the substrate piece, the substrate piece is the transparent thin slice of an ellipsoid form, the surface of substrate piece is the arcwall face setting, and its radian is by the substrate piece is gradually protruding to central authorities all around, the inside cavity of substrate piece is formed with the intermediate layer, the cross-section of intermediate layer presents for semiellipse, the bottom surface of intermediate layer is the plane, the top surface of intermediate layer is the arc surface be formed with circular shape spotlight region on the bottom surface of intermediate layer, spotlight region is located the central authorities of intermediate layer bottom surface, and spotlight region and the cross-section of substrate piece set up with one heart, the substrate piece can assemble spotlight region with outside light, shoot into the eyeball by spotlight region again in the inner wall of intermediate layer top surface bonds and has annular filter zone, filter zone projection extremely the projection face of intermediate layer bottom surface with spotlight region is concentric and surround spotlight region sets up, the filter area comprises an inner ring, a middle ring and an outer ring.

Description

Blue light prevention lens

Technical Field

The utility model relates to a lens technical field especially relates to a prevent blue light lens.

Background

With the development of science and technology, various electronic devices such as televisions, computers and mobile phones are widely applied to daily life of people, and the electronic devices can emit blue light. The harm of blue light to human eyes is mainly caused by the fact that the wavelength of the blue light is short, a focus point is not located at the center of a retina but is located at a position which is far ahead from the retina, and eyeballs are in a tense state for a long time to be clearly seen, so that asthenopia is caused. The long-time visual fatigue may cause the symptoms of deepening of myopia, appearing of diplopia, easy serialization during reading, incapability of concentrating attention and the like, and influences the learning and working efficiency of people.

Most of anti-blue-light lenses in the prior art are coated on the surfaces of the lenses, and the blue light is shielded by using a mode similar to sunglasses, so that the blue light is filtered, however, the judgment of a user on the color of an object is influenced by the mode, namely the color of the blue object seen by the user is distorted.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a prevent blue light lens.

In order to achieve the above object, the utility model provides a following technical scheme:

a blue light prevention lens comprises a substrate sheet, wherein the substrate sheet is an elliptical transparent sheet, the surface of the substrate sheet is arranged in an arc surface, the radian of the substrate sheet gradually protrudes from the periphery to the center of the substrate sheet, an interlayer is formed in the substrate sheet in a hollow mode, the cross section of the interlayer is in a semi-elliptical shape, the bottom surface of the interlayer is a plane, the top surface of the interlayer is an arc surface, a circular light condensation area is formed on the bottom surface of the interlayer, the light condensation area is located in the center of the bottom surface of the interlayer, the light condensation area and the cross section of the substrate sheet are arranged in a concentric mode, the substrate sheet can condense external light into the light condensation area and then irradiate the light condensation area into eyeballs, an annular light filtering area is bonded on the inner wall of the top surface of the interlayer, the projection surface of the light filtering area projected to the bottom surface of the interlayer is concentric with the light condensation area and is arranged around the light condensation area, the filter area comprises an inner ring, a middle ring and an outer ring, wherein the outer ring is dyed with a first mixed color, the first mixed color consists of more than 50% of blue and less than 50% of at least one other color, the middle ring is dyed with a second mixed color, the second mixed color consists of more than 60% of blue and less than 40% of at least one other color, the inner ring is dyed with a third mixed color, and the third mixed color consists of more than 80% of blue and less than 20% of at least one other color.

As an improvement of the utility model, the radian of the arc surface is close to the radian of the arc surface.

Preferably, the first mixed color is composed of 65% of blue and 35% of green.

As a further development of the invention, the second secondary mixed color consists of 75% blue and 25% green.

As a specific technical solution of the present invention, the third mixed color is composed of 80% of blue, 10% of green and 10% of red.

Compared with the prior art, the utility model has the advantages of: the lens comprises a light-gathering area and a light-filtering area, and the light-gathering area can enable external light rays to be focused at the center of the retina, so that clear imaging can be realized. The filter area filters blue light with a preset percentage by layer in a progressive manner, and the three colors of red, green and blue are matched by the three primary color mixing principle, so that blue light in visible light can be filtered, and a blue false image is formed by visual illusion, so that eye fatigue is relieved, and correct judgment of a user on the color is not influenced.

Drawings

Fig. 1 is a schematic structural view of a blue light prevention lens in an embodiment of the present invention;

fig. 2 is a schematic diagram of the blue light prevention lens in fig. 1 projected to the retina.

Detailed Description

The blue light prevention lens in the present invention is further described with reference to the accompanying drawings.

The cells for identifying colors on the retina are cone cells, and the human body judges the colors of different light rays mainly because of subjective impression caused by the light rays with different wavelengths acting on the retina in the human brain. The human eye can generally distinguish seven colors of red, orange, yellow, green, cyan, blue, purple and the like on the spectrum, and each color corresponds to light with a certain wavelength, but careful examination can find that the human eye can distinguish different colors by a visual system only when the wavelength length in the range of visible spectrum is increased or decreased by 3-5nm, wherein the spectrally distinguishable colors are actually not less than 150 colors. It is clearly not likely that there are hundreds of cones or photopigments envisaged in the retina that respond to different wavelengths of light. It is physically known from newton's times or earlier that one color may be caused not only by light of a certain fixed wavelength, but also by the mixing of two or more other wavelengths. For example, the rotation of seven colors of light in the spectrum on a so-called Newton's disk can cause the perception of white on the human eye, and the appropriate mixing of three colors of light, red, green and blue (other than the three colors of pigments), can cause the perception of any color in the spectrum. This phenomenon is particularly important. This so-called three primary color mixing principle has been widely used not only in color photography, color television, and the like, but also for explaining the generation principle itself of color vision.

In the retina, three types of cone cells which are particularly sensitive to light rays with different wavelengths are provided, the three types of cone cells with different spectral absorption characteristics have absorption peaks outside 420nm, absorption peaks outside 531nm and absorption peaks outside 558nm, and the absorption peaks almost exactly correspond to the wavelengths of blue, green and red light. Cone cells can be classified into short cone cells, medium cone cells and long cone cells according to the peak wavelength of the spectral sensitivity of the cone cells. The peak wavelength of the spectral sensitivity of the short cone cells is in the range of 420nm to 440nm, the peak wavelength of the spectral sensitivity of the medium cone cells is in the range of 531nm to 555nm, and the spectral sensitivity of the long cone cells is in the range of 564 nm to 588 nm.

The present embodiment is an improvement of the lens based on the above principle. As shown in the attached drawings, the present embodiment is a blue light prevention lens, which includes a substrate 1, the substrate is an elliptical transparent sheet, and can be made of common spectacle materials such as resin or glass, the surface of the substrate is arranged in an arc shape, the radian of the substrate gradually protrudes from the periphery to the center, the thickness of the material gradually decreases from the periphery to the center, an interlayer is formed in the substrate, the cross section of the interlayer is in a semi-elliptical shape when viewed from the side, the bottom surface of the interlayer is a plane, the top surface of the interlayer is an arc surface, a circular light gathering area 2 is formed on the bottom surface of the interlayer, the light gathering area is located in the center of the bottom surface of the interlayer, the light gathering area and the cross section of the substrate are concentrically arranged, and the substrate can gather external light to the light gathering area and then emit the light into the eyeball from the light gathering area.

Before visible light is converged by the light-converging area, the visible light needs to be filtered, and blue light with shorter wavelength is filtered out, so that stimulation to eyeballs is reduced. Specifically, an annular filter area is bonded on the inner wall of the top surface of the interlayer, a projection surface of the filter area projected to the bottom surface of the interlayer is concentric with and arranged around the light-gathering area, the filter area comprises an inner ring 3, a middle ring 4 and an outer ring 5, the outer ring is dyed with a first mixed color, the first mixed color consists of more than 50% of blue and less than 50% of at least one other color, and preferably, the first mixed color consists of 65% of blue and 35% of green; the middle ring is dyed with a second mixed color, the second mixed color is composed of more than 60% of blue and less than 40% of at least one other color, preferably, the second mixed color is composed of 75% of blue and 25% of green; the inner ring is dyed with a third mixed color consisting of more than 80% blue and less than 20% of at least one other color, preferably the third mixed color consists of 80% blue, 10% green and 10% red.

The filter region may filter out 30% of visible light having a wavelength in the range of 570nm to 750nm so that light having a longer wavelength (e.g., red light having a wavelength in the range of 620nm to 750 nm) is incident on the retina 6. The retina is composed of a central imaging area 61 and a peripheral imaging area 62,

the filter region may be first dyed using ink or dye and then embedded in the substrate sheet and bonded to the interior top surface of the interlayer. The filter region is configured to filter out a predetermined percentage of visible light so that the light can be imaged on different peripheral imaging regions so that the cone of view cells at different locations can be stimulated with light of different wavelengths having different intensities to create visual artifacts that do not affect the original imaging color of the article while filtering out blue light.

The above description is for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way, and modifications and variations can be made without departing from the principles of the present invention.

Claims (5)

1. A prevent blue light lens which characterized in that: the eyeball-shaped light filter comprises a substrate sheet, wherein the substrate sheet is an elliptical transparent sheet, the surface of the substrate sheet is arranged in an arc surface, the radian of the arc surface is gradually raised from the periphery to the center of the substrate sheet, an interlayer is formed in the substrate sheet in a hollow manner, the cross section of the interlayer is in a semi-elliptical shape, the bottom surface of the interlayer is a plane, the top surface of the interlayer is an arc surface, a circular light-gathering area is formed on the bottom surface of the interlayer, the light-gathering area is positioned in the center of the bottom surface of the interlayer, the light-gathering area and the cross section of the substrate sheet are arranged concentrically, the substrate sheet can gather external light to the light-gathering area and then emit the light into the eyeball from the light-gathering area, an annular light-filtering area is bonded on the inner wall of the top surface of the interlayer, and the projection surface of the light-filtering area projected to the bottom surface of the interlayer is, the filter zone includes inner circle, well circle and outer lane, the outer lane is dyed and is had first mixed color, first mixed color comprises with being less than 50% at least one colour in the green blue purple of red orange yellow of blue that is greater than 50%, well circle is dyed and is had second mixed color, second mixed color comprises with being less than 40% at least one colour in the green blue purple of red orange yellow by being greater than 60% blue, the inner circle is dyed and is had third mixed color, third mixed color comprises with being less than 20% at least one colour in the green blue purple of red orange yellow by being greater than 80% blue and being less than 20%.

2. The blue-light blocking lens of claim 1, wherein: the radian of the arc surface is close to that of the arc surface.

3. The blue-light blocking lens of claim 1, wherein: the first mixed color consists of 65% blue and 35% green.

4. The blue-light blocking lens of claim 1, wherein: the second mixed color consists of 75% blue and 25% green.

5. The blue-light blocking lens of claim 1, wherein: the third mixed color consists of 80% blue, 10% green and 10% red.

Images