Natural light homogenization device with planar and freeform lens combination monolithic sinusoidal arrangement

Abstract

The application relates to a natural light homogenizing device of a single piece of a plane and a free curved lens combination type sinusoidal arrangement, and relates to a natural light homogenizing device. The application aims at solving the problem that a traditional lighting curtain cannot guarantee that natural light can be uniformly scattered into a room in each lighting stage and it is difficult to form a full-time homogenizing irradiation effect. The application comprises a plurality of thin light sheets, the outer side of the thin light sheet is a plane, the inner side of the thin light sheet is a continuous free curved lens, the plurality of thin light sheets are arranged in a matrix to form a light collecting matrix, and each row of the thin light sheets of the light collecting matrix is 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 application belongs to the technical field of optics.

Description

TECHNICAL FIELD

[0001] The present application relates to a natural light homogenization device, belonging to the field of optical technology. BACKGROUND

[0002] The green energy concept of natural light illumination is gradually entering the public view, and with the deepening of the research on solar lighting technology, people have a deeper understanding of the natural light collection and illumination system. The intensity and angle of the direct sunlight in a day are different at different times of the day, and people can divide the changes of the direct sunlight throughout the day into three illumination stages according to the different angles between the sun and the ground:

[0003] 1. Early morning and evening sunlight: when the sun rises from the eastern horizon and the sun is about to fall below the horizon in the evening, the angle between the sun and the ground is 0°-15°;

[0004] 2. Morning and afternoon sunlight: the angle between the morning and afternoon sunlight and the ground is between 15° and 60°, which usually refers to the light at 8 o'clock in the morning to 11 o'clock in the morning and 2 o'clock in the afternoon to 5 o'clock in the afternoon, and the illumination intensity is relatively stable;

[0005] 3. Midday sunlight: also known as top light, which is perpendicular to the ground from top to bottom. The illumination angle of the midday sunlight is often affected by the season, and the midday sunlight in summer is basically perpendicular to the ground at 90°, and the projection of the ground scene is very small, while in other seasons, the sunlight is almost vertically from top to bottom, and in winter, the angle of the sunlight is more biased.

[0006] The angles of the natural light entering the room in the above three illumination stages are different, and the traditional daylighting curtain cannot ensure that the natural light in each illumination stage can be uniformly scattered into the room, and it is difficult to form a full-time homogenization illumination effect. SUMMARY

[0007] To solve the problem that the traditional daylighting curtain cannot ensure that the natural light in each illumination stage can be uniformly scattered into the room and is difficult to form a full-time homogenization illumination effect, a natural light homogenization device with a combination of planar and free-form lens single-sine arrangement is proposed.

[0008] The technical scheme adopted by the present application to solve the above problem is: the present application comprises a plurality of thin light sheets, the outer side of the thin light sheet is a plane, and the inner side of the thin light sheet is a continuous free-form lens, a plurality of thin light sheets are arranged in a matrix to form a light collection matrix, and each row of thin light sheets of the light collection 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, the seventh thin light sheet, the eighth thin light sheet, the ninth thin light sheet and the tenth thin light sheet;

[0009] The angle between the cusp line of the first thin light sheet inner surface free-form lens and the horizontal plane is 50°,

[0010] The angle between the cusp line of the second thin light sheet inner surface free-form lens and the horizontal plane is 30°,

[0011] The angle between the cusp line of the third thin light sheet inner surface free-form lens and the horizontal plane is 20°,

[0012] The angle between the cusp line of the fourth thin light sheet inner surface free-form lens and the horizontal plane is 10°,

[0013] The angle between the cusp line of the fifth thin light sheet inner surface free-form lens and the horizontal plane is 5°,

[0014] The angle between the cusp line of the sixth thin light sheet inner surface free-form lens and the horizontal plane is 175°,

[0015] The angle between the cusp line of the seventh thin light sheet inner surface free-form lens and the horizontal plane is 170°,

[0016] The angle between the cusp line of the eighth thin light sheet inner surface free-form lens and the horizontal plane is 160°,

[0017] The angle between the cusp line of the ninth thin light sheet inner surface free-form lens and the horizontal plane is 150°,

[0018] The angle between the cusp line of the tenth thin light sheet inner surface free-form lens and the horizontal plane is 130°.

[0019] Further, the lower surface of each cusp of the continuous free-form lens is a convex surface.

[0020] Further, the normal of the plane forms an acute angle with the incident natural light.

[0021] Further, the thickness d3 of the continuous free-form lens at different positions x, y of a single cusp is expressed as θ5 is the cusp inclination angle, and n is the refractive index.

[0022] Further, the cusp surface of the continuous free-form lens refracts light in the horizontal direction by refraction, and the inclination angle is 20°-70°.

[0023] Further, the thin light sheet is made of transparent material with a transmittance greater than 85%.

[0024] Further, the thickness d1 of the continuous free-form lens at different positions x1, y1 of the cusp surface is expressed as n is the refractive index, θ1 is the inclination angle of the convex free surface, r1 is the surface radius of the convex free surface, the surface radius is 1-5 times the minimum distance between the plane and the convex free surface; the thickness d2 of different positions x2, y2 on the concave free surface is expressed as n is the refractive index, θ2 is the inclination angle of the concave free surface, r2 is the surface radius of the concave free surface, the surface radius is 1-5 times the minimum distance between the plane and the concave free surface.

[0025] The beneficial effects of the present application are:

[0026] 1. The present application can absorb natural light in each lighting stage outdoors and uniformly scatter the natural light to every corner of the indoor, forming a dead angle-free uniform illumination.

[0027] 2. The present application is not limited by the illumination angle of outdoor natural light, and can completely collect natural light at each time period and different incident angles and uniformly scatter it to the indoor, forming a uniform illumination of natural light and realizing the full use of green energy.

[0028] 3. The present application can also replace traditional curtains, light-shielding curtains, windows and the like to protect indoor privacy and prevent outdoor peeping into the indoor.

[0029] 4. The present application adopts a lightweight design concept, has a light overall weight and is easy to mass-produce.

[0030] 5. The present application can efficiently collect natural light incident into the window, uniformly disperse the light to all directions of the indoor, uniformly illuminate the indoor, effectively protect the indoor privacy, and is light, thin, easy to mass-produce and environmentally friendly and pollution-free. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a front structure schematic diagram of the present application;

[0032] Figure 2 is a side view of a single thin light sheet;

[0033] Figure 3 is a first thin light sheet inside surface schematic diagram;

[0034] Figure 4 is a second thin light sheet inside surface schematic diagram;

[0035] Figure 5 is a third thin light sheet inside surface schematic diagram;

[0036] Figure 6 is a fourth thin light sheet inside surface schematic diagram;

[0037] Figure 7 is a fifth thin light sheet inside surface schematic diagram;

[0038] Figure 8is the schematic diagram of the inner side of the sixth thin light sheet;

[0039] Figure 9 is the schematic diagram of the inner side of the seventh thin light sheet;

[0040] Figure 10 is the schematic diagram of the inner side of the eighth thin light sheet;

[0041] Figure 11 is the schematic diagram of the inner side of the ninth thin light sheet;

[0042] Figure 12 is the schematic diagram of the inner side of the tenth thin light sheet DETAILED DESCRIPTION

[0043] DETAILED DESCRIPTION Figures 1 to 12 In this embodiment, the natural light homogenization device of the planar and free-form lens combined single-sin arrangement includes a plurality of thin light sheets 1, the outer side of the thin light sheet 1 is a plane 101, the inner side of the thin light sheet 1 is a continuous free-form lens 102, and the plurality of thin light sheets 1 are arranged in a matrix to form a light collection matrix, and each row of thin light sheets of the light collection 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, the seventh thin light sheet, the eighth thin light sheet, the ninth thin light sheet, and the tenth thin light sheet;

[0044] The included angle β1 between the cusp line of the inner surface free-form lens of the first thin light sheet and the horizontal plane is 50°,

[0045] The included angle β2 between the cusp line of the inner surface free-form lens of the second thin light sheet and the horizontal plane is 30°,

[0046] The included angle β3 between the cusp line of the inner surface free-form lens of the third thin light sheet and the horizontal plane is 20°,

[0047] The included angle β4 between the cusp line of the inner surface free-form lens of the fourth thin light sheet and the horizontal plane is 10°,

[0048] The included angle β5 between the cusp line of the inner surface free-form lens of the fifth thin light sheet and the horizontal plane is 5°,

[0049] The included angle β6 between the cusp line of the inner surface free-form lens of the sixth thin light sheet and the horizontal plane is 175°,

[0050] The included angle β7 between the cusp line of the inner surface free-form lens of the seventh thin light sheet and the horizontal plane is 170°,

[0051] The included angle β8 between the cusp line of the inner surface free-form lens of the eighth thin light sheet and the horizontal plane is 160°,

[0052] The angle β9 between the sawtooth line of the ninth thin light sheet inner surface free-form lens and the horizontal plane is 150°.

[0053] The angle β10 between the sawtooth line of the tenth thin light sheet inner surface free-form lens and the horizontal plane is 130°.

[0054] Specific implementation two: combined Figures 1 to 12 In this embodiment, the lower surface of each sawtooth of the continuous free-form lens 102 of the plane and free-form lens combined single-sin arrangement natural light homogenization device is an outward convex curved surface 103. The other components and connection relationships are the same as those in the first embodiment.

[0055] Specific implementation three: combined Figures 1 to 12 In this embodiment, the normal line of the plane 101 of the plane and free-form lens combined single-sin arrangement natural light homogenization device forms an acute angle with the incident natural light. The other components and connection relationships are the same as those in the first embodiment.

[0056] Specific implementation four: combined Figures 1 to 12 In this embodiment, the thickness d3 of different positions x, y on a single sawtooth of the continuous free-form lens 102 of the plane and free-form lens combined single-sin arrangement natural light homogenization device is expressed as θ5 is the sawtooth inclination angle, and n is the refractive index. The other components and connection relationships are the same as those in the first embodiment.

[0057] Specific implementation five: combined Figures 1 to 12 In this embodiment, the sawtooth surface of the continuous free-form lens 102 of the plane and free-form lens combined single-sin arrangement natural light homogenization device refracts light in the horizontal direction by refraction, and the inclination angle is 20°-70°. The other components and connection relationships are the same as those in the first embodiment.

[0058] Specific implementation six: combined Figures 1 to 12 In this embodiment, the thin light sheet 1 of the plane and free-form lens combined single-sin arrangement natural light homogenization device is made of a transparent material with a transmittance greater than 85%. The other components and connection relationships are the same as those in the first embodiment.

[0059] Specific implementation seven: combined Figures 1 to 12 In this embodiment, the thickness d1 of different positions x1, y1 of the sawtooth surface of the continuous free-form lens 102 of the plane and free-form lens combined single-sin arrangement natural light homogenization device is expressed as n is the refractive index, θ1 is the inclination of the convex free surface, r1 is the surface radius of the convex free surface, the surface radius is 1-5 times the minimum distance between the plane and the convex free surface; the thickness d2 of different positions x2, y2 on the concave free surface is expressed as n is the refractive index, θ2 is the inclination of the concave free surface, r2 is the surface radius of the concave free surface, the surface radius is 1-5 times the minimum distance between the plane and the concave free surface. The other components and connection relationships are the same as those in the first embodiment.

[0060] Working principle

[0061] The plane 101 is used to collect outdoor natural light, and the collected natural light is conducted to the continuous free surface lens 102 through the intermediate medium with the same material on both sides. The continuous free surface lens 102 is used to deflect the incident natural light to the indoor space through the inclined surface refraction.

[0062] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and the equivalent embodiments with equivalent changes are obtained. Any simple modification, equivalent replacement and improvement of the above embodiments, which does not depart from the technical solution of the present application, the technical essence of the present application, and the spirit and principles of the present application, are still within the protection scope of the present application.

Claims

1. A natural light homogenizing device with a single-piece sinusoidal arrangement combining planar and freeform surface lenses, characterized in that: The natural light homogenizing device with a combination of planar and freeform lens single-piece sinusoidal arrangement includes several thin light plates (1). The outer surface of the thin light plate (1) is a planar surface (101), and the inner surface of the thin light plate (1) is a continuous freeform lens (102). The several thin light plates (1) are arranged in a matrix to form a light-collecting matrix. Each row of thin light plates in the light-collecting matrix is ​​numbered from left to right as the first thin light plate, the second thin light plate, the third thin light plate, the fourth thin light plate, the fifth thin light plate, the sixth thin light plate, the seventh thin light plate, the eighth thin light plate, the ninth thin light plate, and the tenth thin light plate. The angle (β1) between the sawtooth lines of the freeform lens on the inner surface of the first thin film and the horizontal plane is 50°. The angle (β2) between the sawtooth lines of the freeform lens on the inner surface of the second thin film and the horizontal plane is 30°. The angle (β3) between the sawtooth line of the freeform lens on the inner surface of the third thin film and the horizontal plane is 20°. The angle (β4) between the sawtooth line of the freeform lens on the inner surface of the fourth thin film and the horizontal plane is 10°. The angle (β5) between the sawtooth line of the freeform lens on the inner surface of the fifth thin film and the horizontal plane is 5°. The angle (β6) between the sawtooth line of the freeform lens on the inner surface of the sixth thin film and the horizontal plane is 175°. The angle (β7) between the sawtooth lines of the freeform lens on the inner surface of the seventh thin plate and the horizontal plane is 170°. The angle (β8) between the sawtooth line of the freeform lens on the inner surface of the eighth thin plate and the horizontal plane is 160°. The angle (β9) between the sawtooth line of the freeform lens on the inner surface of the ninth thin plate and the horizontal plane is 150°. The angle (β10) between the sawtooth line of the freeform lens on the inner surface of the tenth thin sheet and the horizontal plane is 130°.

2. The natural light homogenizing device of single-piece sinusoidal arrangement combining planar and freeform surface lenses according to claim 1, characterized in that: The lower surface of each tooth of the continuous freeform lens (102) is an outwardly convex curved surface (103).

3. The natural light homogenizing device of single-piece sinusoidal arrangement combining planar and freeform surface lenses according to claim 1, characterized in that: The normal to the plane (101) forms an acute angle with the angle of incident natural light.

4. The natural light homogenizing device of single-piece sinusoidal arrangement combining planar and freeform surface lenses according to claim 1, characterized in that: The thickness at different positions (x5, y5) on a single sawtooth of the continuous freeform lens (102) The expression is , denoted by the zigzag angle, and denoted by n, which is the refractive index.

5. The natural light homogenizing device of single-piece sinusoidal arrangement combining planar and freeform surface lenses according to claim 1, characterized in that: The sawtooth surface of the continuous freeform lens (102) refracts light in the horizontal direction through refraction, with an inclination angle of 20°~70°.

6. The natural light homogenizing device of single-piece sinusoidal arrangement combining planar and freeform surface lenses according to claim 1, characterized in that: The thin sheet (1) is made of a transparent material with a transmittance of more than 85%.

7. The natural light homogenizing device of single-piece sinusoidal arrangement combining planar and freeform surface lenses according to claim 1, characterized in that: Different positions of the sawtooth surface of the continuous freeform lens (102) thickness The expression is where n is the refractive index. The angle of inclination of the convex freeform surface. The radius of the convex freeform surface is 1-5 times the minimum distance between the plane and the convex freeform surface; different positions on the concave freeform surface thickness The expression is where n is the refractive index. The angle of inclination of the concave freeform surface. Let be the radius of the concave freeform surface. The radius of the surface is 1 to 5 times the minimum distance between the plane and the concave freeform surface.

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