CN117722622A - Plane and free-form surface lens combined type single-piece sine-arranged natural light homogenizing device - Google Patents

Abstract

A natural light homogenizing device with a planar and free-form surface lens combined type single sine arrangement relates to a natural light homogenizing device. The invention aims to solve the problems that the traditional daylighting curtain can not ensure that natural light in each lighting stage can be uniformly scattered into a room and is difficult to form all-weather uniform irradiation effect. The invention comprises a plurality of thin light sheets, wherein the outer side surfaces of the thin light sheets are planes, the inner side surfaces of the thin light sheets are continuous free-form surface lenses, the thin light sheets are arranged in a matrix shape to form a lighting matrix, and each row of thin light sheets of the lighting matrix are sequentially numbered from left to right as a first thin light sheet, a second thin light sheet, a third thin light sheet, a fourth thin light sheet, a fifth thin light sheet, a sixth thin light sheet, a seventh thin light sheet, an eighth thin light sheet, a ninth thin light sheet and a tenth thin light sheet. The invention belongs to the technical field of optics.

Description

A natural light homogenizing device with a combined monolithic sinusoidal arrangement of flat and free-form lenses

Technical field

The invention relates to a natural light homogenizing device and belongs to the field of optical technology.

Background technique

The green energy concept of natural light lighting is gradually entering the public eye. As the research on solar lighting technology continues to deepen, people have a deeper understanding of natural light collection lighting systems. The intensity and angle of direct sunlight during the day are different due to different times in the morning and evening. People can divide the changes in direct sunlight throughout the day into three lighting stages based on the angle between the sun and the ground:

1. Sunlight in the morning and evening: When the sun rises from the eastern horizon and in the evening when the sun is about to set below the horizon in the west, the angle between the sun and the ground is 0° to 15°;

2. Sunlight in the morning and afternoon: The angle between the sun in the morning and afternoon and the ground is between 15° and 60°. It usually refers to the light from 8 am to 11 am and from 2 pm to 5 pm. The strength is relatively stable;

3. Sunlight at noon: Also called top light, it illuminates the ground vertically from top to bottom. The illumination angle of the sunlight at this moment is often affected by the season. In summer, the sunlight at noon basically illuminates vertically downward at 90°. The projection of the ground scenery is very small. At noon in other seasons, the sunlight shines from top to bottom at a nearly vertical angle. At noon in winter, the angle of the irradiation will be more biased.

The natural light in the above three lighting stages enters the room at different angles. Traditional lighting curtains cannot ensure that the natural light in each lighting stage can be evenly scattered into the room, making it difficult to form an all-weather uniform illumination effect.

Contents of the invention

In order to solve the problem that traditional lighting curtains cannot ensure that the natural light in each lighting stage can be evenly scattered into the room, and it is difficult to form an all-weather uniform illumination effect, the present invention further proposes a single-chip sinusoidal arrangement of natural light combined with a flat and free-form surface lens. Homogenization device.

The technical solution adopted by the present invention to solve the above problems is: the present invention includes several thin light sheets, the outer surface of the thin light sheets is a plane, the inner side of the thin light sheets is a continuous free-form lens, and the several thin light sheets are in the form of a matrix. Arranged in a shape to form a lighting matrix, each row of thin light sheets in the lighting matrix is numbered from left to right as the first thin light sheet, the second thin light sheet, the third thin light sheet, the fourth thin light sheet, the fifth thin light sheet, light sheet, sixth thin light sheet, seventh thin light sheet, eighth thin light sheet, ninth thin light sheet and tenth thin light sheet;

The angle between the zigzag line of the free-form lens on the inner surface of the first thin light sheet and the horizontal plane is 50°,

The angle between the zigzag line of the free-form lens on the inner surface of the second thin light sheet and the horizontal plane is 30°,

The angle between the zigzag line of the free-form lens on the inner surface of the third thin light sheet and the horizontal plane is 20°.

The angle between the zigzag line of the free-form lens on the inner surface of the fourth thin light sheet and the horizontal plane is 10°.

The angle between the zigzag line of the free-form lens on the inner surface of the fifth thin light sheet and the horizontal plane is 5°.

The angle between the zigzag line of the free-form lens on the inner surface of the sixth thin light sheet and the horizontal plane is 175°.

The angle between the zigzag line of the free-form lens on the inner surface of the seventh thin light sheet and the horizontal plane is 170°.

The angle between the zigzag line of the free-form lens on the inner surface of the eighth thin light sheet and the horizontal plane is 160°.

The angle between the zigzag line of the free-form lens on the inner surface of the ninth thin light sheet and the horizontal plane is 150°.

The angle between the zigzag line of the free-form lens on the inner surface of the tenth thin light sheet and the horizontal plane is 130°.

Further, the lower surface of each serration of the continuous free-form surface lens is a convex curved surface.

Further, the normal line of the plane forms an acute angle with the angle of incident natural light.

Further, the expression of the thickness _d3 of the single serration of the continuous free-form surface lens at different positions x, y is: θ ₅ is the sawtooth tilt angle, and n is the refractive index.

Furthermore, the serrated surface of the continuous free-form lens refracts light in the horizontal direction through refraction, and its inclination angle is 20° to 70°.

Further, the thin light sheet is made of a transparent material with a transmittance greater than 85%.

Further, the expression of the thickness d ₁ of the sawtooth surface of the continuous free-form lens at different positions x ₁ and y ₁ is: n is the refractive index, θ ₁ is the inclination angle of the convex free-form surface, r ₁ is the radius of the convex free-form surface, and the radius of the curved surface is 1-5 times the minimum distance between the plane and the convex free-form surface; x ₂ at different positions on the concave free-form surface , the expression of thickness d ₂ of y ₂ is/> n is the refractive index, θ ₂ is the inclination angle of the concave free-form surface, r ₂ is the surface radius of the concave free-form surface, and the surface radius is 1-5 times the minimum distance between the plane and the concave free-form surface.

The beneficial effects of the present invention are:

1. The present invention can absorb natural light at various outdoor lighting stages and evenly scatter natural light to every corner of the room, forming uniform lighting without dead ends;

2. The present invention is not limited by the angle of outdoor natural light. It can completely collect the natural light at different incident angles in each time period and scatter it evenly into the room to form homogenized lighting of natural light and realize the full utilization of green energy;

3. The present invention can also replace traditional curtains, blackout curtains, windows, etc. to protect indoor privacy and prevent outdoor prying into the room;

4. This invention adopts a lightweight design concept, with light overall weight and easy mass production;

5. The present invention can efficiently collect the natural light incident into the window, evenly disperse the light to all directions indoors, homogenize indoor lighting, and effectively protect indoor privacy. It is light and thin, easy to mass produce, environmentally friendly and pollution-free.

Description of the drawings

Figure 1 is a schematic front structural view of the present invention;

Figure 2 is a side view of a single thin light sheet;

Figure 3 is a schematic view of the inner side of the first thin light sheet;

Figure 4 is a schematic view of the inner side of the second thin light sheet;

Figure 5 is a schematic view of the inner side of the third thin light sheet;

Figure 6 is a schematic view of the inner side of the fourth thin light sheet;

Figure 7 is a schematic view of the inner side of the fifth thin light sheet;

Figure 8 is a schematic view of the inner side of the sixth thin light sheet;

Figure 9 is a schematic view of the inner side of the seventh thin light sheet;

Figure 10 is a schematic view of the inner side of the eighth thin light sheet;

Figure 11 is a schematic view of the inner side of the ninth thin light sheet;

Figure 12 is a schematic view of the inner side of the tenth thin light sheet

Detailed ways

Specific Embodiment 1: This embodiment will be described with reference to Figures 1 to 12. The natural light homogenizing device with a single piece of sinusoidal arrangement of flat and free-form surface lenses described in this embodiment includes several thin light sheets 1. The outer side is a plane 101, and the inner side of the thin light sheet 1 is a continuous free-form lens 102. Several thin light sheets 1 are arranged in a matrix to form a lighting matrix. Each row of thin light sheets in the lighting matrix is sequentially from left to right. The numbers are the first thin light sheet, the second thin light sheet, the third thin light sheet, the fourth thin light sheet, the fifth thin light sheet, the sixth thin light sheet, the seventh thin light sheet, the eighth thin light sheet, Ninth thin light sheet and tenth thin light sheet;

The angle β1 between the zigzag line of the free-form lens on the inner surface of the first thin light sheet and the horizontal plane is 50°,

The angle β2 between the zigzag line of the free-form lens on the inner surface of the second thin light sheet and the horizontal plane is 30°,

The angle β3 between the zigzag line of the free-form lens on the inner surface of the third thin light sheet and the horizontal plane is 20°,

The angle β4 between the zigzag line of the free-form lens on the inner surface of the fourth thin light sheet and the horizontal plane is 10°,

The angle β5 between the zigzag line of the free-form lens on the inner surface of the fifth thin light sheet and the horizontal plane is 5°.

The angle β6 between the zigzag line of the free-form lens on the inner surface of the sixth thin light sheet and the horizontal plane is 175°,

The angle β7 between the zigzag line of the free-form lens on the inner surface of the seventh thin light sheet and the horizontal plane is 170°,

The angle β8 between the zigzag line of the free-form lens on the inner surface of the eighth thin light sheet and the horizontal plane is 160°.

The angle β9 between the zigzag line of the free-form lens on the inner surface of the ninth thin light sheet and the horizontal plane is 150°.

The angle β10 between the zigzag line of the free-form lens on the inner surface of the tenth thin light sheet and the horizontal plane is 130°.

Specific Embodiment 2: This embodiment will be described with reference to Figures 1 to 12. Each serration of the continuous free-form surface lens 102 of the natural light homogenizing device with a single-chip sinusoidal arrangement of flat and free-form surface lenses described in this embodiment. The lower surface of is a convex curved surface 103. Other components and connection relationships are the same as in the first embodiment.

Specific Embodiment 3: This embodiment will be described with reference to Figures 1 to 12. In this embodiment, the normal line of the plane 101 of the natural light homogenizing device with a single piece of sinusoidal arrangement of a combined plane and free-form surface lens is at an angle with the incident natural light. acute angle. Other components and connection relationships are the same as in the first embodiment.

Specific Embodiment 4: This embodiment will be described with reference to Figures 1 to 12. In this embodiment, the single sawtooth of the continuous free-form surface lens 102 of the natural light homogenizing device with a single sinusoidal arrangement of flat and free-form surface lenses is described. The expression of thickness d ₃ at different positions x and y is: θ ₅ is the sawtooth tilt angle, and n is the refractive index. Other components and connection relationships are the same as in the first embodiment.

Specific Embodiment 5: This embodiment will be described with reference to Figures 1 to 12. In this embodiment, the serrated surface of the continuous free-form lens 102 of the natural light homogenizing device with a single-chip sinusoidal arrangement of combined plane and free-form lenses passes through Refraction refracts light in the horizontal direction, with an inclination angle of 20° to 70°. Other components and connection relationships are the same as in the first embodiment.

Specific Embodiment 6: This embodiment will be described with reference to Figures 1 to 12. The thin light sheet 1 of the natural light homogenizing device with a single sinusoidal arrangement of flat and free-form lens combinations in this embodiment adopts a transparent material with a transmittance greater than 85%. Material production. Other components and connection relationships are the same as in the first embodiment.

Specific Embodiment 7: This embodiment will be described with reference to Figures 1 to 12. In this embodiment, the serrated surface of the continuous free-form lens 102 of the natural light homogenization device with a combined monolithic sinusoidal arrangement of flat and free-form lenses is different. The expression of thickness d ₁ at position x ₁ , y ₁ is n is the refractive index, θ ₁ is the inclination angle of the convex free-form surface, r ₁ is the radius of the convex free-form surface, and the radius of the curved surface is 1-5 times the minimum distance between the plane and the convex free-form surface; x ₂ at different positions on the concave free-form surface , the expression of thickness d ₂ of y ₂ is n is the refractive index, θ ₂ is the inclination angle of the concave free-form surface, r ₂ is the surface radius of the concave free-form surface, and the surface radius is 1-5 times the minimum distance between the plane and the concave free-form surface. Other components and connection relationships are the same as in the first embodiment.

working principle

The plane 101 is used to collect outdoor natural light and conduct it to the continuous free-form surface lens 102 through an intermediate medium of the same material between the two surfaces; the continuous free-form surface lens 102 is used to deflect the incident natural light through the inclined surface after refraction. interior space.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed above in preferred embodiments, they are not intended to limit the present invention. Anyone familiar with this field will Skilled persons can make some changes or modifications to equivalent embodiments with equivalent changes using the technical content disclosed above without departing from the scope of the technical solution of the present invention. The technical essence of the invention is within the spirit and principles of the invention, and any simple modifications, equivalent substitutions and improvements made to the above embodiments still fall within the protection scope of the technical solution of the invention.

Claims (7)

1. A natural light homogenizing device with a combined single-piece sinusoidal arrangement of flat and free-form lenses, characterized in that: the natural light homogenizing device with a combined single-piece sinusoidal arrangement of flat and free-form lenses includes several thin light sheets (1) , the outer surface of the thin light sheet (1) is a plane (101), the inner surface of the thin light sheet (1) is a continuous free-form lens (102), and several thin light sheets (1) are arranged in a matrix to form a lighting matrix. , each row of thin light sheets in the lighting matrix is numbered from left to right as the first thin light sheet, the second thin light sheet, the third thin light sheet, the fourth thin light sheet, the fifth thin light sheet, the sixth thin light sheet, thin light sheets, seventh thin light sheets, eighth thin light sheets, ninth thin light sheets and tenth thin light sheets; The angle (β1) between the zigzag line of the free-form lens on the inner surface of the first thin light sheet and the horizontal plane is 50°, The angle (β2) between the zigzag line of the free-form lens on the inner surface of the second thin light sheet and the horizontal plane is 30°, The angle (β3) between the zigzag line of the free-form lens on the inner surface of the third thin light sheet and the horizontal plane is 20°, The angle (β4) between the zigzag line of the free-form lens on the inner surface of the fourth thin light sheet and the horizontal plane is 10°. The angle (β5) between the zigzag line of the free-form lens on the inner surface of the fifth thin light sheet and the horizontal plane is 5°. The angle (β6) between the zigzag line of the free-form lens on the inner surface of the sixth thin light sheet and the horizontal plane is 175°. The angle (β7) between the zigzag line of the free-form lens on the inner surface of the seventh thin light sheet and the horizontal plane is 170°. The angle (β8) between the zigzag line of the free-form lens on the inner surface of the eighth thin light sheet and the horizontal plane is 160°. The angle (β9) between the zigzag line of the free-form lens on the inner surface of the ninth thin light sheet and the horizontal plane is 150°. The angle (β10) between the zigzag line of the free-form lens on the inner surface of the tenth thin light sheet and the horizontal plane is 130°. 2. The natural light homogenizing device of a combined monolithic sinusoidal arrangement of flat and free-form lenses according to claim 1, characterized in that: the lower surface of each serration of the continuous free-form lens (102) is convex. surface(103). 3. The natural light homogenizing device with a combined monolithic sinusoidal arrangement of flat and free-form lenses according to claim 1, characterized in that: the normal line of the plane (101) forms an acute angle with the incident natural light angle. 4. The natural light homogenization device with a combined monolithic sinusoidal arrangement of flat and free-form lenses according to claim 1, characterized in that: the different positions x, y on the single sawtooth of the continuous free-form lens (102) The expression of thickness d ₃ is θ ₅ is the sawtooth tilt angle, and n is the refractive index. 5. The natural light homogenizing device with a combined monolithic sinusoidal arrangement of flat and free-form lenses according to claim 1, characterized in that: the sawtooth surface of the continuous free-form lens (102) refracts light in the horizontal direction through refraction. direction, its inclination angle is 20°~70°. 6. The natural light homogenizing device with a combined single-chip sinusoidal arrangement of flat and free-form lenses according to claim 1, characterized in that: the thin light sheet (1) is made of a transparent material with a transmittance greater than 85%. 7. The natural light homogenizing device with a combined monolithic sinusoidal arrangement of flat and free-form lenses according to claim 1, characterized in that: the sawtooth surfaces of the continuous free-form lenses (102) are at different positions x ₁ , y ₁ The expression of thickness d ₁ is n is the refractive index, θ ₁ is the inclination angle of the convex free-form surface, r ₁ is the radius of the convex free-form surface, and the radius of the curved surface is 1-5 times the minimum distance between the plane and the convex free-form surface; x ₂ at different positions on the concave free-form surface , the expression of thickness d ₂ of y ₂ is/> n is the refractive index, θ ₂ is the inclination angle of the concave free-form surface, r ₂ is the surface radius of the concave free-form surface, and the surface radius is 1-5 times the minimum distance between the plane and the concave free-form surface.