Homogenized lighting device based on a single piece combining a lens and a sawtooth grating

Abstract

A homogenized lighting device based on a single piece combining a lens and a sawtooth grating, which relates to a homogenized lighting device. The present invention is designed to solve the problem of conventional light curtains that cannot guarantee uniform diffusion of natural light in the room at each stage of lighting, making it difficult to create a homogenized lighting effect in all weather conditions. The present invention comprises ten first thin light sheets, ten second thin light sheets, ten third thin light sheets, ten fourth thin light sheets, ten fifth thin light sheets, ten sixth thin light sheets, ten seventh thin light sheets, ten eighth thin light sheets, ten ninth thin light sheets, and ten tenth thin light sheets, said first ten thin light sheets,said ten second thin luminous sheets, said ten third thin luminous sheets, said ten fourth thin luminous sheets, said ten fifth thin luminous sheets, said ten sixth thin luminous sheets, said seventeenth thin luminous sheets, said eighteenth thin luminous sheets, said nineteenth thin luminous sheets, and said ten tenth thin luminous sheets being arranged in a matrix to form a natural lighting matrix. The present invention belongs to the field of optical technology. Fig. 1,

Description

Title of the invention: HOMOGENIZED LIGHTING DEVICE BASED ON A SINGLE PIECE COMBINING A LENS AND A SAW-TOOTH GRATING FIELD OF THE INVENTION

[0001] The present invention relates to a homogenized lighting device and belongs to the field of optical technology. STATE OF THE ART

[0002] The research and development of daylight lighting technology in China began in the 1960s and 1970s. Since the launch of the "Green Lighting" project in 1996, the concept of daylight lighting as green energy has gradually become a public concept. Through continuous in-depth research on solar lighting technology, people also have a deep understanding of daylight lighting systems. The intensity and angle of direct sunlight during a day vary depending on the morning and evening times. The variations of direct sunlight throughout the day can be divided into three lighting phases according to the different angles between the sun and the ground:

[0003] 1. Sunlight in the morning and evening: when the sun rises on the eastern horizon, and when the sun is about to set below the western horizon, the angle between the sun and the ground is 0° to 15°;

[0004] 2. Sunlight in the morning and afternoon: an angle between the light sun in the morning and afternoon and the ground is between 15° and 60°, which generally corresponds to light from 8 a.m. to 11 a.m. and light from 2 p.m. to 5 p.m. in the afternoon, with relatively stable light intensity;

[0005] 3. Midday sunlight: also called top light, which hits the ground vertically from top to bottom, and the illumination angle of sunlight at this time is often influenced by the season. In summer, sunlight at noon essentially hits the ground scene at a vertical angle of 90°, and the ground scene produces only a very limited projection, however, in other seasons, sunlight at noon shines from top to bottom at a nearly vertical angle, and in winter, the angle of sunlight at noon is more asymmetrical.

[0006] Natural light at the three aforementioned lighting phases enters a room from different angles. Conventional light curtains do not cannot guarantee uniform diffusion of natural light in the room at every stage of lighting, which makes it difficult to form a homogenized lighting effect in all weather. CONTENT OF THE INVENTION

[0007] The object of the present invention is to provide a homogenized lighting device based on a single piece combining a lens and a sawtooth grating, in order to solve the problem of conventional light curtains which cannot guarantee uniform diffusion of natural light in the room at each stage of lighting, which makes it difficult to form a homogenized lighting effect in all weathers.

[0008] For this, the present invention adopts the following technical solution: the present invention comprises ten first thin luminous sheets, ten second thin luminous sheets, ten third thin luminous sheets, ten fourth thin luminous sheets, ten fifth thin luminous sheets, ten sixth thin luminous sheets, ten seventh thin luminous sheets, eighteenth thin luminous sheets, ten ninth thin luminous sheets and ten tenth thin luminous sheets, said ten first thin luminous sheets, said ten second thin luminous sheets, said ten third thin luminous sheets, said ten fourth thin luminous sheets, said ten fifth thin luminous sheets, said ten sixth thin luminous sheets, said ten seventh thin luminous sheets, said eighteenth thin luminous sheets,said ten-ninth thin light sheets and said ten-tenth thin light sheets being arranged in a matrix to form a natural lighting matrix, ,

[0009] the first row of said natural lighting matrix comprises, from left to right, 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;

[0010] the second row of said natural lighting matrix comprises, from left to right, a tenth thin light sheet, 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 and a ninth thin light sheet;

[0011] the third row of said natural lighting matrix comprises, from left to right, a ninth thin light sheet, a tenth thin light sheet, 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 and an eighth thin light sheet;

[0012] the fourth row of said natural lighting matrix comprises, from left to right, an eighth thin light sheet, a ninth thin light sheet, a tenth thin light sheet, 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 and a seventh thin light sheet;

[0013] the fifth row of said natural lighting matrix comprises, from left to right, a seventh thin light sheet, an eighth thin light sheet, a ninth thin light sheet, a tenth thin light sheet, 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 and a sixth thin light sheet;

[0014] the sixth row of said daylighting matrix comprises, from left to right, a sixth thin light sheet, a seventh thin light sheet, an eighth thin light sheet, a ninth thin light sheet, a tenth thin light sheet, a first thin light sheet, a second thin light sheet, a third thin light sheet, a fourth thin light sheet and a fifth thin light sheet;

[0015] the seventh row of said natural lighting matrix comprises, from left to right, 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, a tenth thin light sheet, a first thin light sheet, a second thin light sheet, a third thin light sheet and a fourth thin light sheet;

[0016] the eighth row of said natural lighting matrix comprises, from left to right, 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, a tenth thin light sheet, a first thin light sheet, a second thin light sheet and a third thin light sheet;

[0017] the ninth row of said natural lighting matrix comprises, from left to right, 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, a tenth thin light sheet, a first thin light sheet and a second thin light sheet;

[0018] the tenth row of said natural lighting matrix comprises, from left to right, 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, a tenth thin light sheet, a first thin light sheet;

[0019] outer sides of 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 are all continuous lens arrays, inner sides of 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 are all continuous sawtooth arrays;

[0020] the angle between a sawtooth line of a sawtooth grating on an inner surface of the first thin light sheet and a horizontal plane is 50°,

[0021] the angle between a sawtooth line of a sawtooth grating on an inner surface of the second thin light sheet and a horizontal plane is 30°,

[0022] the angle between a sawtooth line of a sawtooth grating on an inner surface of the third thin light sheet and the horizontal plane is 20°,

[0023] the angle between a sawtooth line of a sawtooth grating on an inner surface of the fourth thin light sheet and the horizontal plane is 10°,

[0024] the angle between a sawtooth line of a sawtooth grating on an inner surface of the fifth thin light sheet and the horizontal plane is 5°,

[0025] the angle between a sawtooth line of a sawtooth grating on an inner surface of the sixth thin light sheet and the horizontal plane is 175°,

[0026] the angle between a sawtooth line of a sawtooth grating on an inner surface of the seventh thin light sheet and the horizontal plane is 170°,

[0027] the angle between a sawtooth line of a sawtooth grating on an inner surface of the eighth thin light sheet and the horizontal plane is 160°,

[0028] the angle between a sawtooth line of a sawtooth grating on an inner surface of the ninth thin light sheet and the horizontal plane is 150°, ,

[0029] the angle between a sawtooth line of a sawtooth grating on an inner surface of the tenth thin light sheet and the horizontal plane is 130°.

[0030] Further, the continuous lens array may be a continuous lens array concave.

[0031] Furthermore, the thickness zl at different positions xl and yl on a surface of each concave lens of said continuous concave lens array can be expressed as ^ 2 , where rl represents the radius of the curved surface

[0032] of the concave lens, the radius of the curved surface being able to be 1 to 5 times the minimum spacing between the concave lens and the sawtooth grating. Furthermore, the phase modulation applied to natural light by said network continuous concave lenses can be expressed as 4- v?), where x3 and y3 represent the positions of an incident wavefront of the lens array, X represents a central wavelength of natural light, and f represents a focal length of the lens.

[0033] Further, the continuous lens array may be a continuous lens array with a convex freeform surface.

[0034] Further, the thickness dl at different positions xl and yl on each convex freeform surface of said continuous convex freeform surface lens array can be expressed as , । ( ], where n represents a refractive index, rl represents a radius of curvature at a vertex of the convex freeform surface, and represents a surface-like tilt angle of the convex freeform surface, which causes light to propagate in a horizontal direction by refraction, the radius of curvature can be 1 to 5 times the minimum spacing between the freeform surface and the sawtooth grating.

[0035] Furthermore, the phase modulation 4$ applied to the incident light by said continuous array of convex free-form surface lenses can be expressed as 4- r? ) 2 * . . ■ where represents the angle of incidence of the light natural on the freeform surface, X represents the central wavelength of the incident light, f I represents the equivalent focal length of the freeform surface, and x3 and y3 represent the positions of an incident wavefront of the freeform surface lens array.

[0036] Furthermore, the phase modulation applied to the incident natural light by said continuous sawtooth network can be expressed as sin t?.. y4 represents the position of an incident wavefront of the sawtooth surface array, and Q represents the angle of incidence of natural light incident on the sawtooth surface.

[0037] Furthermore, 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 may all be made of a transparent material having a transmittance of more than 85%.

[0038] Furthermore, each lens of said continuous lens array may correspond one-to-one to each sawtooth of said continuous sawtooth array, a center position of the sawtooth may correspond one-to-one to an optical axis of the lens, and a tilt angle of the sawtooth of the continuous sawtooth array may be within the range of 20° to 70°.

[0039] The beneficial effects of the present invention are as follows:

[0040] 1. the present invention is capable of absorbing natural light at each phase outdoor lighting and evenly diffuse natural light into all corners of the room, thus forming homogenized lighting without blind areas;

[0041] 2. the present invention is not subject to the restrictions of the angle of light outdoor natural light, and can fully collect natural light at different angles of incidence in each period of time and evenly diffuse the light indoors to form homogenized illumination by natural light and realize full utilization of green energy;

[0042] 3. the present invention can also replace traditional curtains, blackout curtains, windows and the like, so as to protect privacy indoors and prevent outside views from penetrating inside;

[0043] 4. the present invention adopts a lightweight design concept, with low weight total easy mass production;

[0044] 5. the present invention makes it possible to efficiently collect natural light incident in the window, and evenly diffuse light in all directions indoors, homogenize indoor lighting and effectively protect indoor privacy, with thin and light characteristics, easy to mass produce, environmentally friendly and non-polluting. BRIEF DESCRIPTION OF THE FIGURES

[0045] [Fig.l] represents a diagram of the front structure according to the present invention;

[0046] [Fig.2] shows a side view of the thin luminous sheet when the side outside the thin light sheet is a continuous array of concave lenses;

[0047] [Fig.3] shows a side view of the thin luminous sheet when the side exterior of the thin light sheet is a continuous array of free-form surface lenses;

[0048] [Fig.4] represents a diagram of an inner side of a first luminous sheet thin ;

[0049] [Fig.5] represents a diagram of an inner side of a second luminous sheet thin ;

[0050] [Fig.6] represents a diagram of an inner side of a third luminous sheet thin ;

[0051] [Fig.7] represents a diagram of an inner side of a fourth luminous sheet thin ;

[0052] [Fig.8] represents a diagram of an inner side of a fifth thin luminous sheet;

[0053] [Fig.9] represents a diagram of an inner side of a sixth luminous sheet thin ;

[0054] [Fig. 10] represents a diagram of an inner side of a seventh thin luminous sheet;

[0055] [Fig. 11] represents a diagram of an inner side of an eighth thin luminous sheet;

[0056] [Fig. 12] represents a diagram of an inner side of a ninth thin luminous sheet;

[0057] [Fig. 13] shows a diagram of an inner side of a tenth thin luminous sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0058] Embodiment 1: The present embodiment is described in connection with [Fig.l] to 13. In the embodiment, the homogenized lighting device based on a single piece combining a lens and a sawtooth grating comprises ten first thin light sheets 1, ten second thin light sheets 2, ten third thin light sheets 3, ten fourth thin light sheets 4, ten fifth thin light sheets 5, ten sixth thin light sheets 6, ten seventh thin light sheets 7, eighteenth thin light sheets 8, ten ninth thin light sheets 9 and ten tenth thin light sheets 10, said ten first thin light sheets 1, said ten second thin light sheets 2, said ten third thin light sheets 3, said ten fourth thin light sheets 4, said ten-fifths thin light sheets 5, said ten-sixths thin light sheets 6, said ten-sevenths thin light sheets 7, said eighteenths thin light sheets 8, said ten-ninths thin light sheets 9 and said ten-tenths thin light sheets 10 being arranged in a matrix to form a natural lighting matrix,

[0059] the first row of said natural lighting matrix comprises, from left to right, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9 and a tenth thin light sheet 10;

[0060] the second row of said natural lighting matrix comprises, from left to right, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8 and a ninth thin light sheet 9;

[0061] the third row of said natural lighting matrix comprises, from left to right, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7 and an eighth thin light sheet 8;

[0062] the fourth row of said natural lighting matrix comprises, from left to right, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6 and a seventh thin light sheet 7;

[0063] the fifth row of said natural lighting matrix comprises, from left to right, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5 and a sixth thin light sheet 6;

[0064] the sixth row of said natural lighting matrix comprises, from left to right, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4 and a fifth thin light sheet 5;

[0065] the seventh row of said natural lighting matrix comprises, from left to right, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2, a third thin light sheet 3 and a fourth thin light sheet 4;

[0066] the eighth row of said natural lighting matrix comprises, from left to right, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1, a second thin light sheet 2 and a third thin light sheet 3;

[0067] the ninth row of said natural lighting matrix comprises, from left to right, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1 and a second thin light sheet 2;

[0068] the tenth row of said natural lighting matrix comprises, from left to right, a second thin light sheet 2, a third thin light sheet 3, a fourth thin light sheet 4, a fifth thin light sheet 5, a sixth thin light sheet 6, a seventh thin light sheet 7, an eighth thin light sheet 8, a ninth thin light sheet 9, a tenth thin light sheet 10, a first thin light sheet 1;

[0069] outer sides of the first thin light sheet 1, the second thin light sheet 2, the third thin light sheet 3, the fourth thin light sheet 4, the fifth thin light sheet 5, the sixth thin light sheet 6, the seventh thin light sheet 7, the eighth thin light sheet 8, the ninth thin light sheet 9 and the tenth thin light sheet 10 are all continuous lens arrays, inner sides of the first thin light sheet 1, the second thin light sheet 2, the third thin light sheet 3, the fourth thin light sheet 4, the fifth thin light sheet 5, the sixth thin light sheet 6, the seventh thin light sheet 7, the eighth thin light sheet 8, the ninth thin light sheet 9 and tenth thin light sheet 10 are all continuous sawtooth networks;

[0070] the angle [31 between a sawtooth line of a sawtooth grating on an inner surface of the first thin light sheet 1 and a horizontal plane is 50°,

[0071] the angle [32 between a sawtooth line of a sawtooth grating on an inner surface of the second thin light sheet 2 and the horizontal plane is 30°,

[0072] the angle [33 between a sawtooth line of a sawtooth grating on an inner surface of the third thin light sheet 3 and the horizontal plane is 20°,

[0073] the angle [34 between a sawtooth line of a sawtooth grating on an inner surface of the fourth thin light sheet 4 and the horizontal plane is 10°,

[0074] the angle (|35) between a sawtooth line of a sawtooth grating on an inner surface of the fifth thin light sheet 5 and the horizontal plane is 5°,

[0075] the angle [36 between a sawtooth line of a sawtooth grating on an inner surface of the sixth thin light sheet 6 and the horizontal plane is 175°,

[0076] the angle [37 between a sawtooth line of a sawtooth grating on an inner surface of the seventh thin light sheet 7 and the horizontal plane is 170°,

[0077] the angle [38 between a sawtooth line of a sawtooth grating on an inner surface of the eighth thin light sheet 8 and the horizontal plane is 160°,

[0078] the angle [39 between a sawtooth line of a sawtooth grating on an inner surface of the ninth thin light sheet 9 and the horizontal plane is 150°,

[0079] the angle [310 between a sawtooth line of a sawtooth grating on an inner surface of the tenth thin light sheet 10 and the horizontal plane is 130°.

[0080] Embodiment 2: The present embodiment is described in connection with [Fig.l] to 13. For the homogenized lighting device based on a single piece combining a lens and a sawtooth array in the embodiment, the continuous lens array of the may be a continuous concave lens array. Other components and connection relationships are the same as those described in Embodiment 1.

[0081] Embodiment 3: The present embodiment is described in connection with Figs 1 to 13. For the homogenized illumination device based on a single piece combining a lens and a sawtooth array in the embodiment, the thickness zl at different positions xl and yl on a surface of each concave lens of the continuous concave lens array can be expressed as r * , where rl represents the radius of the curved surface of the concave lens, the radius of the curved surface may be 1 to 5 times the minimum spacing between the concave lens and the sawtooth grating. Other components and connection relationships are the same as those described in Embodiment 2.

[0082] Embodiment 4: The present embodiment is described in connection with Figs 1 to 13. For the homogenized lighting device based on a single piece combining a lens and a sawtooth grating in the embodiment, the phase modulation applied to natural light by the continuous concave lens grating can be expressed as _ Mrf ' °ù and y3 represent liilM the positions of an incident wavefront of the lens array, X represents a central wavelength of natural light, and f represents a focal length of the lens. Other components and linking relationships are the same as those described in Embodiment 2.

[0083] Embodiment 5: The present embodiment is described in connection with [Fig.l] to 13. For the homogenized illumination device based on a single piece combining a lens and a sawtooth array in the embodiment, the continuous lens array may be a continuous lens array with a convex free-form surface. Other components and connection relationships are the same as those described in Embodiment 1.

[0084] Embodiment 6: The present embodiment is described in connection with Figs 1 to 13. For the homogenized illumination device based on a single piece combining a lens and a sawtooth grating in the embodiment, the thickness dl at different positions xl and yl on each convex freeform surface of said continuous convex freeform surface lens grating can be expressed as ifv J, where n represents an index of 1 d U . iO --............ - I refraction, rl represents a radius of curvature at a vertex of the shape surface free convex, and H represents a surface-type inclination angle of the surface of convex freeform, which causes light to propagate in a horizontal direction by refraction, the radius of curvature being 1 to 5 times the minimum spacing between the freeform surface and the sawtooth grating. Other components and connection relationships are the same as those described in Embodiment 5.

[0085] Embodiment 7: The present embodiment is described in connection with Figs 1 to 13. For the homogenized lighting device based on a single piece combining a lens and a sawtooth grating in the embodiment, the phase modulation §3 applied to the incident light by said continuous lens array with convex freeform surface can be expressed as < । r^) 2 JT , - where &, represents the angle of incidence of the natural light on the freeform surface, X represents the central wavelength of the incident light, fl represents the equivalent focal length of the freeform surface, and x3 and y3 represent the positions of an incident wavefront of the freeform surface lens array. Other components and linkage relationships are the same as those described in Embodiment 5.

[0086] Embodiment 8: The present embodiment is described in connection with Figs 1 to 13. For the homogenized lighting device based on a single piece combining a lens and a sawtooth grating in the embodiment, the phase modulation applied to the incident natural light by said network continuous sawtooth can be expressed as 2-t , where y4 .. ,L represents the position of an incident wavefront of the sawtooth surface array, and 0 represents the angle of incidence of natural light incident on the sawtooth surface. The other components and linking relationships are the same as those described in Embodiment 1.

[0087] Embodiment 9: The present embodiment is described in connection with [Fig. 1] to 13. For the homogenized lighting device based on a single piece combining a lens and a sawtooth grating in the embodiment, the first thin light sheet 1, the second thin light sheet 2, the third thin light sheet 3, the fourth thin light sheet 4, the fifth thin light sheet 5, the sixth thin light sheet 6, the seventh thin light sheet 7, the eighth thin light sheet 8, the ninth thin light sheet 9 and the tenth thin light sheet 10 may all be made of a transparent material whose transmittance is greater than 85%. Other components and connection relationships are the same as those described in Embodiment 1.

[0088] Embodiment 10: The present embodiment is described in connection with [Fig.l] to 13. For the homogenized illumination device based on a single piece combining a lens and a sawtooth grating in the embodiment, each lens of said continuous lens grating may correspond one by one to each sawtooth of said continuous sawtooth grating, a center position of the sawtooth may correspond one by one to an optical axis of the lens, and a tilt angle θ of the sawtooth of the continuous sawtooth grating may be within the range of 20° to 70°. Other components and connection relationships are the same as those described in Embodiment 1.

[0089] OPERATING PRINCIPLE

[0090] The present invention comprises a front surface and a rear surface in the form of an array, the front surface being a lens array and the rear surface being a sawtooth array; outdoor natural light at a high angle is collected and modulated by the surface of the lens array, then transmitted to the sawtooth array through the intermediate medium made of the equivalent material between the two surfaces, and then diffused horizontally into the interior space after being refracted by an inclined surface.

[0091] The foregoing relates only to preferred embodiments of the present invention and does not serve to limit the present invention in any form. Although the present invention has been disclosed in preferred embodiments, these are not intended to limit the present invention. Those skilled in the art may make possible changes and modifications using the technical contents disclosed above, in order to constitute equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention.Any simple modification, equivalent change and improvement made to the above embodiments without departing from the content of the technical solutions of the present invention, based on the technical substance of the present invention and in compliance with the spirit and principles of the present invention, still fall within the scope of the technical solution of the present invention.

Claims

1. Claims A homogenized lighting device based on a single piece combining a lens and a sawtooth grating, characterized in that: said homogenized lighting device based on a single piece combining a lens and a sawtooth grating comprises ten first thin light sheets (1), ten second thin light sheets (2), ten third thin light sheets (3), ten fourth thin light sheets (4), ten fifth thin light sheets (5), ten sixth thin light sheets (6), ten seventh thin light sheets (7), eighteenth thin light sheets (8), ten ninth thin light sheets (9) and ten tenth thin light sheets (10), said ten first thin light sheets (1), said ten second thin light sheets (2), said ten third thin light sheets (3), said ten fourth thin light sheets (4),said ten fifths thin light sheets (5), said ten sixths thin light sheets (6), said ten sevenths thin light sheets (7), said eighteenths thin light sheets (8), said ten ninths thin light sheets (9) and said ten tenths thin light sheets (10) being arranged in a matrix to form a daylighting matrix, the first row of said daylighting matrix comprises, from left to right, a first thin light sheet (1), a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin light sheet (9) and a tenth thin light sheet (10);, the second row of said natural lighting matrix comprises, from left to right, a tenth thin light sheet (10), a first thin light sheet (1), a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8) and a ninth thin light sheet (9); the third row of said natural lighting matrix comprises, from left to right, a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1), a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7) and an eighth thin light sheet (8); the fourth row of said natural lighting matrix comprises, from left to right, an eighth thin light sheet (8), a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1), a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6) and a seventh thin light sheet (7); the fifth row of said natural lighting matrix comprises, from left to right, a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1), a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5) and a sixth thin light sheet (6);the sixth row of said natural lighting matrix comprises, from left to right, a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1), a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4) and a fifth thin light sheet (5); the seventh row of said natural lighting matrix comprises, from left to right, a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin luminous sheet (9), a tenth thin luminous sheet (10), a first thin luminous sheet (1), a second thin luminous sheet (2), a third thin luminous sheet (3) and a fourth thin luminous sheet (4); the eighth row of said daylighting matrix comprises, from left to right, a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1), a second thin light sheet (2) and a third thin light sheet (3); the ninth row of said natural lighting matrix comprises, from left to right, a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1) and a second thin light sheet (2); the tenth row of said natural lighting matrix comprises, from left to right, a second thin light sheet (2), a third thin light sheet (3), a fourth thin light sheet (4), a fifth thin light sheet (5), a sixth thin light sheet (6), a seventh thin light sheet (7), an eighth thin light sheet (8), a ninth thin light sheet (9), a tenth thin light sheet (10), a first thin light sheet (1); the outer sides of the first thin light sheet (1), the second thin light sheet (2), the third thin light sheet (3), the fourth thin light sheet (4), the fifth thin light sheet (5), the sixth thin light sheet (6), the seventh thin light sheet (7), the eighth thin light sheet (8), the ninth thin light sheet (9) and the tenth thin light sheet (10) are all continuous lens arrays, the inner sides of the first thin light sheet (1), the second thin light sheet (2), the third thin light sheet (3),

2. the fourth thin light sheet (4), the fifth thin light sheet (5), the sixth thin light sheet (6), the seventh thin light sheet (7), the eighth thin light sheet (8), the ninth thin light sheet (9) and the tenth thin light sheet (10) are all continuous sawtooth gratings; the angle ([31) between a sawtooth line of a sawtooth grating on an inner surface of the first thin luminous sheet (1) and a horizontal plane is 50°, the angle ([32) between a sawtooth line of a sawtooth grating on an inner surface of the second thin luminous sheet (2) and the horizontal plane is 30°, the angle ([33) between a sawtooth line of a sawtooth grating on an inner surface of the third thin luminous sheet (3) and the horizontal plane is 20°, the angle (|34) between a sawtooth line of a sawtooth grating on an inner surface of the fourth thin light sheet (4) and the horizontal plane is 10°, the angle ([35) between a sawtooth line of a sawtooth grating on an inner surface of the fifth thin light sheet (5) and the horizontal plane is 5°, the angle ([36) between a sawtooth line of a sawtooth grating on an inner surface of the sixth thin light sheet (6) and the horizontal plane is 175°, the angle ([37) between a sawtooth line of a sawtooth lattice on an inner surface of the seventh thin light sheet (7) and the horizontal plane is 170°, the angle ([38) between a sawtooth line of a sawtooth grating on an inner surface of the eighth thin light sheet (8) and the horizontal plane is 160°, the angle ([39) between a sawtooth line of a sawtooth grating on an inner surface of the ninth thin light sheet (9) and the horizontal plane is 150°, the angle ([310) between a sawtooth line of a sawtooth grating on an inner surface of the tenth thin light sheet (10) and the horizontal plane is 130°. Homogenized lighting device based on a single piece combining a lens and a sawtooth grating according to the claim 1, characterized in that: said continuous array of lenses may be a continuous array of concave lenses.

3. A homogenized illumination device based on a single piece combining a lens and a sawtooth grating according to claim 2, characterized in that: the thickness zl at different positions xl and yl on a surface of each concave lens of said continuous concave lens grating can be expressed as q. y2 , where rl represents the radius of the curved surface of the concave lens, the radius of the curved surface may be 1 to 5 times the minimum spacing between the concave lens and the sawtooth grating.

4. A homogenized illumination device based on a single piece combining a lens and a sawtooth grating according to claim 2, characterized in that: the phase modulation |H applied to natural light by said continuous concave lens grating can be expressed as , °where x3 and y3 represent the positions of an incident wavefront of the lens grating, X represents a central wavelength of natural light, and f represents a focal length of the lens.

5. A homogenized lighting device based on a single piece combining a lens and a sawtooth array according to claim 1, characterized in that: said continuous array of lenses may be a continuous array of lenses with a convex free-form surface.

6. A homogenized illumination device based on a single piece combining a lens and a sawtooth grating according to claim 5, characterized in that: the thickness dl at different positions xl and yl on each convex free-form surface of said continuous convex free-form surface lens array can be expressed as jf 1, = —7!----> ' " 1 where n represents a refractive index, rl represents a radius of curvature at a vertex of the convex free-form surface, and H represents a surface-like inclination angle of the convex free-form surface, which causes light to propagate in a horizontal direction by refraction, the radius of curvature being able to be from 1 to 5 times the minimum spacing between the freeform surface and the sawtooth grating.

7. A homogenized illumination device based on a single piece combining a lens and a sawtooth grating according to claim 5, characterized in that: the phase modulation applied to the incident light by said continuous convex free-form surface lens array can be expressed as ,, where represents the angle = “ \ À of incidence of natural light on the free-form surface, X represents the central wavelength of the incident light, fl represents the equivalent focal length of the free-form surface, and x3 and y3 represent the positions of an incident wavefront of the free-form surface lens array.

8. A homogenized lighting device based on a single piece combining a lens and a sawtooth grating according to claim 1, characterized in that: the phase modulation applied to the incident natural light by said continuous sawtooth grating can be expressed as 2^ . , where y4 — — —“ V4 represents the position of an incident wavefront of the sawtooth surface grating, and represents the angle of incidence of the incident natural light on the sawtooth surface.

9. A homogenized lighting device based on a single piece combining a lens and a sawtooth grating according to claim 1, characterized in that: the first thin light sheet (1), the second thin light sheet (2), the third thin light sheet (3), the fourth thin light sheet (4), the fifth thin light sheet (5), the sixth thin light sheet (6), the seventh thin light sheet (7), the eighth thin light sheet (8), the ninth thin light sheet (9) and the tenth thin light sheet (10) may all be made of a transparent material whose transmittance is greater than 85%.

10. Homogenized lighting device based on a single piece combining a lens and a sawtooth grating according to the claim 1, characterized in that: each lens of said continuous lens array can correspond one to one to each sawtooth of said continuous sawtooth array, a central position of the sawtooth can correspond one to one to an optical axis of the lens, and a tilt angle (0) of the sawtooth of the continuous sawtooth array can be within the range of 20° to 70°.

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