CN218209342U

CN218209342U - Free-form surface convex-concave combined single-chip natural light homogenizing and lighting structure

Info

Publication number: CN218209342U
Application number: CN202222693245.XU
Authority: CN
Inventors: 刘俭; 王新伟; 丁旭旻
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-03
Anticipated expiration: 2032-10-13

Abstract

The utility model relates to a daylighting structure, concretely relates to monolithic natural light homogenization daylighting structure of free curved surface convex-concave combination belongs to lighting system design and beam shaping field. The lens comprises a convex lens component and a concave lens component, wherein the back surface of the convex lens component is fixedly connected with the back surface of the concave lens component. Furthermore, the convex lens component is formed by arranging a plurality of convex lens units in a matrix shape. Furthermore, the concave lens component is formed by arranging a plurality of concave lens units in a matrix shape. Further, the convex lens inclination angle θ of each concave lens unit is 20 ° to 70 °. The utility model discloses can high-efficiently collect the natural light of incidenting the window, evenly disperse light to indoor all directions, the indoor illumination of homogenization to effectively protect indoor privacy, frivolous easy volume production, the environmental protection is pollution-free.

Description

Free-form surface convex-concave combined single-chip natural light homogenizing and lighting structure

Technical Field

The utility model relates to a daylighting structure, concretely relates to monolithic natural light homogenization daylighting structure of free curved surface convex-concave combination belongs to lighting system design and beam shaping field.

Background

The research and development of the natural light illumination technology in China starts in the six and seventies of the twentieth century, and since the project of 'green illumination' in 1996 is popularized to the present, the concept of the green energy source of the natural light illumination gradually enters the field of vision of the public, and people also have deeper understanding on the natural light acquisition illumination system along with the continuous deep research on the solar energy illumination technology. As natural resources such as petroleum and coal are gradually depleted, research and development on solar energy are increasing, and solar energy application technology has the disadvantage that the conversion efficiency of solar energy is low, but the cost is much higher than that of other traditional energy conversion methods, so that the improvement of the utilization efficiency of solar energy and the reduction of the solar energy conversion cost become important targets in recent research.

In order to improve the utilization efficiency of the sunlight, one method is to use a solar collector combined with a light guide module to guide the sunlight to a solar cell or a heat conduction module through the light guide module, so as to increase the collection efficiency of the sunlight and further improve the production efficiency of the solar energy conversion device. Known solar energy conversion devices require passing through a solar concentrator to concentrate incident sunlight to multiple focal points on the light exit side for use by a solar cell or a heat conducting assembly. However, the focal length of the collected light causes a huge volume of the known solar energy conversion device, the large-volume solar energy conversion device not only needs to consume higher manufacturing and material cost and is difficult to precisely move and control sun tracking, but also needs a large-area installation area, and the light guide tube occupying the mainstream of the market at present has low efficiency and poor lighting uniformity, and can damage the original building structure in the installation process, so that the popularization and the promotion are not facilitated.

Therefore, how to perform efficient solar lighting without changing the original building structure is an urgent problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve daylighting equipment commonly used and can't evenly disperse the problem to each corner in the room from the incident natural light of window, and then provide a natural light homogenization daylighting structure of concave lens and sawtooth grating combination

The utility model discloses a solve the technical scheme that above-mentioned problem was taken and be: the utility model discloses a convex lens subassembly and concave lens subassembly, convex lens subassembly the back with concave lens subassembly's back fixed connection.

Furthermore, the convex lens component is composed of a plurality of convex lens units which are arranged.

Further, the concave lens component is composed of a plurality of concave lens units which are arranged.

Further, the convex lens inclination angle θ of each concave lens unit is 20 ° to 70 °.

Furthermore, the back of each convex lens unit is provided with a male buckle, the back of each concave lens unit is provided with a female buckle matched with the male buckle, and the male buckle is inserted into the female buckle.

Furthermore, the front face of the convex lens component faces to the same direction as the incident direction of natural light, and the normal of each convex lens unit forms an acute angle with the incident light angle.

Furthermore, the combination mode of the convex lens units on the concave lens component and the concave lens units on the concave lens component is one-to-many, one-to-one or many-to-one.

The utility model has the advantages that: the natural light irradiated on the device is transmitted through the convex lens component, the natural light is transmitted to the rear end of the sawtooth lens component, and the natural light is dispersed through the concave lens component, so that the natural light can be uniformly distributed in all corners of a room, and the use efficiency of the natural light is improved. Meanwhile, the structure can be used as a curtain, a partition or an energy-saving lampshade.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a partial side sectional view of the present invention;

fig. 3 is a schematic view of a partial three-dimensional structure of the present invention;

FIG. 4 is a schematic front perspective view of a lenticular lens unit;

FIG. 5 is a schematic diagram of a rear perspective structure of a convex lens unit;

FIG. 6 is a schematic front perspective view of a concave lens unit;

fig. 7 is a schematic rear perspective view of the concave lens unit.

Detailed Description

The first specific implementation way is as follows: the present embodiment is described with reference to fig. 1 to 7, and the one-piece natural light homogenizing and lighting structure with a combination of free-form surface convex-concave surface according to the present embodiment includes a convex lens component and a concave lens component, and a back surface of the convex lens component is fixedly connected to a back surface of the concave lens component.

The convex lens component performs additional phase modulation on natural light

Can be expressed as

(x ₁ ，y ₁ ) The position of the convex lens component before the wave is incident, lambda is the central wavelength of natural light, and f is the focal length of the lens; the concave lens component adds phase modulation to natural light

Can be expressed as

(x ₂ ,y ₂ ) The position of the incident wavefront of the concave lens array is shown as lambda, the natural light center wavelength and f, the focal length of the lens.

The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 7, and the convex lens assembly of the one-piece natural light homogenizing and lighting structure with a free-form surface convex-concave combination according to the present embodiment is composed of a plurality of convex lens units 1 arranged in an array.

The thickness of a certain point (x, y) on the convex lens unit 1 is

n is refractionThe ratio, r, is the radius of curvature of the apex, θ ₁ Is a surface type inclination angle.

Other components and connections are the same as those in the first embodiment.

The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 7, and the concave lens assembly of the free-form surface convex-concave combined single-piece natural light homogenizing and lighting structure of the present embodiment is composed of a plurality of concave lens units 2 arranged in an array.

The thickness of a certain point (x, y) on the concave lens unit 2 is

n is the refractive index, r is the radius of curvature of the apex, θ ₂ Is a surface type inclination angle.

The fourth concrete implementation mode: referring to fig. 1 to 7, the present embodiment will be described, in which the inclination angle θ of the convex lens of each concave lens unit 2 of the free-form surface convex-concave combined single-chip natural light homogenizing and collecting structure of the present embodiment is 20 ° to 70 °. Other components and connection relationships are the same as those in the third embodiment.

The fifth concrete implementation mode: in the present embodiment, a male snap 101 is disposed on the back surface of each convex unit 1, a female snap 201 is disposed on the back surface of each concave lens unit 2, the male snap 101 is inserted into the female snap 201, and the structure is a one-piece natural light homogenizing and collecting structure with a combination of convex and concave surfaces having a free curved surface. Other components and connection relationships are the same as those in the first, second or third embodiment.

The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1 to 7, in which the front of the convex lens element of the one-piece natural light homogenizing and lighting structure with a free-form surface convex-concave combination according to the present embodiment is aligned with the incident direction of natural light, and the normal of each convex lens unit 1 forms an acute angle with the incident light angle. Other components and connection relationships are the same as those in the second embodiment.

The seventh concrete implementation mode: in the present embodiment, the convex lens units 1 on the concave lens assembly and the concave lens units 2 on the concave lens assembly of the one-piece natural light homogenizing and light collecting structure with free-form surface convex-concave combination according to the present embodiment are combined in a one-to-many, one-to-one, or many-to-one manner, as described with reference to fig. 1 to 7. Other components and connection relationships are the same as those in the first, second or third embodiment.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment without departing from the technical scope of the present invention, but all the modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principle of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A free-form surface convex-concave combined single-chip natural light homogenizing and lighting structure is characterized in that: the single-piece natural light homogenizing and lighting structure with the convex-concave combination of the free curved surfaces comprises a convex lens component and a concave lens component, wherein the back surface of the convex lens component is fixedly connected with the back surface of the concave lens component.

2. The free-form surface convex-concave combined single-plate natural light homogenizing and lighting structure according to claim 1, wherein: the convex lens component is formed by arranging a plurality of convex lens units (1).

3. The free-form surface convex-concave combined single-plate natural light homogenizing and lighting structure according to claim 1, wherein: the concave lens component is formed by arranging a plurality of concave lens units (2).

4. The free-form surface convex-concave combined single-plate natural light homogenizing and lighting structure according to claim 3, wherein: the convex lens inclination angle theta of each concave lens unit (2) is 20-70 deg.

5. The structure of claim 1, 2 or 3, wherein the free-form surface convex-concave combined single-piece natural light homogenizing lighting structure comprises: the back of each convex lens unit (1) is provided with a male buckle (101), the back of each concave lens unit (2) is provided with a female buckle (201) matched with the male buckle (101), and the male buckle (101) is inserted into the female buckle (201).

6. The structure of claim 2, wherein the free-form surface convex-concave combined single-piece natural light homogenizing and collecting structure comprises: the front face of the convex lens component faces to the direction consistent with the incident direction of natural light, and the normal line of each convex lens unit (1) forms an acute angle with the incident light angle.

7. The structure of claim 1, 2 or 3, wherein the free-form surface convex-concave combined single-piece natural light homogenizing and collecting structure comprises: the convex lens units (1) on the concave lens components and the concave lens units (2) on the concave lens components are combined in a way of one-to-many, one-to-one or many-to-one.